darwin-amd64-10_14 at 6c76edeb1b67a5751dff215aaa712572d87a4ce8

:: Running /var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/make.bash with args ["/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/make.bash"] and env ["TERM_PROGRAM=Apple_Terminal" "SHELL=/bin/bash" "TERM=xterm-256color" "TMPDIR=/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/" "Apple_PubSub_Socket_Render=/private/tmp/com.apple.launchd.6y3SLTPDL0/Render" "TERM_PROGRAM_VERSION=421.1.1" "TERM_SESSION_ID=20603058-3E1D-44A9-BD29-495CE29874B0" "USER=gopher" "SSH_AUTH_SOCK=/private/tmp/com.apple.launchd.cizf8XtFwF/Listeners" "PATH=/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin" "GO_BUILDER_ENV=macstadium_vm" "PWD=/Users/gopher" "LANG=en_US.UTF-8" "XPC_FLAGS=0x0" "XPC_SERVICE_NAME=0" "HOME=/Users/gopher" "SHLVL=4" "LOGNAME=gopher" "SECURITYSESSIONID=186a7" "_=./buildlet" "WORKDIR=/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14" "GOROOT_BOOTSTRAP=/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go1.4" "GO_BUILDER_NAME=darwin-amd64-10_14" "GOROOT_BOOTSTRAP=/Users/gopher/goboot" "GOBIN=" "TMPDIR=/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/tmp" "GOCACHE=/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/gocache"] in dir /var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src

Building Go cmd/dist using /Users/gopher/goboot. (go1.12.1 darwin/amd64)
Building Go toolchain1 using /Users/gopher/goboot.
Building Go bootstrap cmd/go (go_bootstrap) using Go toolchain1.
Building Go toolchain2 using go_bootstrap and Go toolchain1.
Building Go toolchain3 using go_bootstrap and Go toolchain2.
Building packages and commands for darwin/amd64.
---
Installed Go for darwin/amd64 in /private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go
Installed commands in /private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/bin

##### Testing packages.
ok  	archive/tar	0.038s
ok  	archive/zip	0.262s
ok  	bufio	0.063s
ok  	bytes	1.541s
ok  	compress/bzip2	0.088s
ok  	compress/flate	0.432s
ok  	compress/gzip	0.279s
ok  	compress/lzw	0.066s
ok  	compress/zlib	0.459s
ok  	container/heap	0.016s
ok  	container/list	0.009s
ok  	container/ring	0.032s
ok  	context	0.019s
ok  	crypto	0.016s
ok  	crypto/aes	0.030s
ok  	crypto/cipher	0.023s
ok  	crypto/des	0.015s
ok  	crypto/dsa	0.013s
ok  	crypto/ecdsa	0.138s
ok  	crypto/ed25519	0.068s
ok  	crypto/elliptic	0.046s
ok  	crypto/hmac	0.010s
ok  	crypto/internal/subtle	0.009s
ok  	crypto/md5	0.010s
ok  	crypto/rand	0.030s
ok  	crypto/rc4	0.045s
ok  	crypto/rsa	0.098s
ok  	crypto/sha1	0.032s
ok  	crypto/sha256	0.013s
ok  	crypto/sha512	0.013s
ok  	crypto/subtle	0.015s
ok  	crypto/tls	0.586s
ok  	crypto/x509	1.161s
ok  	database/sql	0.671s
ok  	database/sql/driver	0.009s
ok  	debug/dwarf	0.019s
ok  	debug/elf	0.023s
ok  	debug/gosym	0.021s
ok  	debug/macho	0.015s
ok  	debug/pe	0.016s
ok  	debug/plan9obj	0.012s
ok  	encoding/ascii85	0.015s
ok  	encoding/asn1	0.011s
ok  	encoding/base32	0.029s
ok  	encoding/base64	0.016s
ok  	encoding/binary	0.012s
ok  	encoding/csv	0.015s
ok  	encoding/gob	0.032s
ok  	encoding/hex	0.016s
ok  	encoding/json	0.355s
ok  	encoding/pem	0.030s
ok  	encoding/xml	0.033s
ok  	errors	0.015s
ok  	expvar	0.032s
ok  	flag	0.112s
ok  	fmt	0.085s
ok  	go/ast	0.015s
ok  	go/build	1.263s
ok  	go/constant	0.013s
ok  	go/doc	0.065s
ok  	go/format	0.019s
ok  	go/importer	0.156s
ok  	go/internal/gccgoimporter	0.018s
ok  	go/internal/gcimporter	2.020s
ok  	go/internal/srcimporter	7.337s
ok  	go/parser	0.045s
ok  	go/printer	0.216s
ok  	go/scanner	0.015s
ok  	go/token	0.021s
ok  	go/types	1.207s
ok  	hash	0.012s
ok  	hash/adler32	0.019s
ok  	hash/crc32	0.012s
ok  	hash/crc64	0.010s
ok  	hash/fnv	0.010s
ok  	hash/maphash	0.086s
ok  	html	0.011s
ok  	html/template	0.110s
ok  	image	0.061s
ok  	image/color	0.045s
ok  	image/draw	0.064s
ok  	image/gif	0.242s
ok  	image/jpeg	0.196s
ok  	image/png	0.050s
ok  	index/suffixarray	0.291s
ok  	internal/cpu	0.031s
ok  	internal/fmtsort	0.011s
ok  	internal/poll	0.035s
ok  	internal/profile	0.020s
ok  	internal/reflectlite	0.049s
ok  	internal/singleflight	0.021s
ok  	internal/trace	0.036s
ok  	internal/unsafeheader	0.012s
ok  	internal/xcoff	0.041s
ok  	io	0.043s
ok  	io/ioutil	0.020s
ok  	log	0.026s
ok  	log/syslog	1.253s
ok  	math	0.016s
ok  	math/big	0.910s
ok  	math/bits	0.016s
ok  	math/cmplx	0.014s
ok  	math/rand	0.239s
ok  	mime	0.014s
ok  	mime/multipart	0.155s
ok  	mime/quotedprintable	0.022s
ok  	net	9.443s
ok  	net/http	8.564s
ok  	net/http/cgi	0.778s
ok  	net/http/cookiejar	0.032s
ok  	net/http/fcgi	0.054s
ok  	net/http/httptest	0.105s
ok  	net/http/httptrace	0.025s
ok  	net/http/httputil	0.097s
ok  	net/http/internal	0.012s
ok  	net/http/pprof	5.149s
ok  	net/internal/socktest	0.011s
ok  	net/mail	0.015s
ok  	net/rpc	0.054s
ok  	net/rpc/jsonrpc	0.029s
ok  	net/smtp	0.036s
ok  	net/textproto	0.012s
ok  	net/url	0.019s
ok  	os	1.236s
ok  	os/exec	1.944s
ok  	os/signal	2.114s
ok  	os/user	0.013s
ok  	path	0.015s
ok  	path/filepath	0.060s
ok  	plugin	0.010s
ok  	reflect	0.168s
ok  	regexp	0.173s
ok  	regexp/syntax	0.309s
--- FAIL: TestCgoCallbackGC (0.41s)
    crash_test.go:105: /var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/tmp/go-build640626432/testprogcgo.exe CgoCallbackGC exit status: exit status 2
    crash_cgo_test.go:70: expected "OK\n", but got:
        fatal error: unexpected signal during runtime execution
        [signal SIGSEGV: segmentation violation code=0x1 addr=0x700004d93046 pc=0x7fff606c0bd0]
        
        runtime stack:
        runtime: unexpected return pc for runtime.pthread_kill_trampoline called from 0x70000097fdb0
        stack: frame={sp:0x70000097fcc8, fp:0x70000097fcd0} stack=[0x7000009002b0,0x70000097feb0)
        000070000097fbc8:  0000000000000001  0000000004166fb6 
        000070000097fbd8:  000070000097fc20  000000000406483f <runtime.fatalthrow.func1+95> 
        000070000097fbe8:  000000c0000e8180  0000000004036ab2 <runtime.throw+114> 
        000070000097fbf8:  000070000097fc68  0000000000000001 
        000070000097fc08:  000070000097fc68  0000000004036ab2 <runtime.throw+114> 
        000070000097fc18:  000000c0000e8180  000070000097fc58 
        000070000097fc28:  0000000004036c97 <runtime.fatalthrow+87>  000070000097fc38 
        000070000097fc38:  00000000040647e0 <runtime.fatalthrow.func1+0>  000000c0000e8180 
        000070000097fc48:  0000000004036ab2 <runtime.throw+114>  000070000097fc68 
        000070000097fc58:  000070000097fc88  0000000004036ab2 <runtime.throw+114> 
        000070000097fc68:  000070000097fc70  0000000004064740 <runtime.throw.func1+0> 
        000070000097fc78:  0000000004169548  000000000000002a 
        000070000097fc88:  000070000097fcb8  000000000404d64c <runtime.sigpanic+1164> 
        000070000097fc98:  0000000004169548  000000000000002a 
        000070000097fca8:  0000700004d93000  000070000097fcf0 
        000070000097fcb8:  000070000097fcf0  000000000406dd60 <runtime.pthread_kill_trampoline+0> 
        000070000097fcc8: <000070000097fdb0 >00000000000000f2 
        000070000097fcd8:  00000000042423e0  0000000000000000 
        000070000097fce8:  0000000000000000  000070000097fd00 
        000070000097fcf8:  000000000406dd70 <runtime.pthread_kill_trampoline+16>  000070000097fd78 
        000070000097fd08:  000000000406bbed <runtime.asmcgocall+173>  000000c0000e6000 
        000070000097fd18:  000070000097fd38  0000000000000000 
        000070000097fd28:  000000000406dca0 <runtime.pthread_mutex_unlock_trampoline+0>  000070000097fd50 
        000070000097fd38:  000070000097fd50  0000000000000000 
        000070000097fd48:  000070000097fd88  000000000405616c <runtime.libcCall+108> 
        000070000097fd58:  000000000406dd60 <runtime.pthread_kill_trampoline+0>  000070000097fdb0 
        000070000097fd68:  00000000040567c5 <runtime.nanotime1+69>  000000c0000e6000 
        000070000097fd78:  000070000097fda0  00000000040563f1 <runtime.pthread_kill+49> 
        000070000097fd88:  000000000406dd60 <runtime.pthread_kill_trampoline+0>  000070000097fdb0 
        000070000097fd98:  000070000097fdc8  000070000097fdc0 
        000070000097fda8:  0000000004044d89 <runtime.preemptone+201>  0000700004d93000 
        000070000097fdb8:  0000000000000010  000070000097fe00 
        000070000097fdc8:  0000000004044c85 <runtime.preemptall+101> 
        runtime.throw(0x4169548, 0x2a)
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/panic.go:1116 +0x72
        runtime.sigpanic()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/signal_unix.go:703 +0x48c
        runtime: unexpected return pc for runtime.pthread_kill_trampoline called from 0x70000097fdb0
        stack: frame={sp:0x70000097fcc8, fp:0x70000097fcd0} stack=[0x7000009002b0,0x70000097feb0)
        000070000097fbc8:  0000000000000001  0000000004166fb6 
        000070000097fbd8:  000070000097fc20  000000000406483f <runtime.fatalthrow.func1+95> 
        000070000097fbe8:  000000c0000e8180  0000000004036ab2 <runtime.throw+114> 
        000070000097fbf8:  000070000097fc68  0000000000000001 
        000070000097fc08:  000070000097fc68  0000000004036ab2 <runtime.throw+114> 
        000070000097fc18:  000000c0000e8180  000070000097fc58 
        000070000097fc28:  0000000004036c97 <runtime.fatalthrow+87>  000070000097fc38 
        000070000097fc38:  00000000040647e0 <runtime.fatalthrow.func1+0>  000000c0000e8180 
        000070000097fc48:  0000000004036ab2 <runtime.throw+114>  000070000097fc68 
        000070000097fc58:  000070000097fc88  0000000004036ab2 <runtime.throw+114> 
        000070000097fc68:  000070000097fc70  0000000004064740 <runtime.throw.func1+0> 
        000070000097fc78:  0000000004169548  000000000000002a 
        000070000097fc88:  000070000097fcb8  000000000404d64c <runtime.sigpanic+1164> 
        000070000097fc98:  0000000004169548  000000000000002a 
        000070000097fca8:  0000700004d93000  000070000097fcf0 
        000070000097fcb8:  000070000097fcf0  000000000406dd60 <runtime.pthread_kill_trampoline+0> 
        000070000097fcc8: <000070000097fdb0 >00000000000000f2 
        000070000097fcd8:  00000000042423e0  0000000000000000 
        000070000097fce8:  0000000000000000  000070000097fd00 
        000070000097fcf8:  000000000406dd70 <runtime.pthread_kill_trampoline+16>  000070000097fd78 
        000070000097fd08:  000000000406bbed <runtime.asmcgocall+173>  000000c0000e6000 
        000070000097fd18:  000070000097fd38  0000000000000000 
        000070000097fd28:  000000000406dca0 <runtime.pthread_mutex_unlock_trampoline+0>  000070000097fd50 
        000070000097fd38:  000070000097fd50  0000000000000000 
        000070000097fd48:  000070000097fd88  000000000405616c <runtime.libcCall+108> 
        000070000097fd58:  000000000406dd60 <runtime.pthread_kill_trampoline+0>  000070000097fdb0 
        000070000097fd68:  00000000040567c5 <runtime.nanotime1+69>  000000c0000e6000 
        000070000097fd78:  000070000097fda0  00000000040563f1 <runtime.pthread_kill+49> 
        000070000097fd88:  000000000406dd60 <runtime.pthread_kill_trampoline+0>  000070000097fdb0 
        000070000097fd98:  000070000097fdc8  000070000097fdc0 
        000070000097fda8:  0000000004044d89 <runtime.preemptone+201>  0000700004d93000 
        000070000097fdb8:  0000000000000010  000070000097fe00 
        000070000097fdc8:  0000000004044c85 <runtime.preemptall+101> 
        runtime.pthread_kill_trampoline(0xf2, 0x42423e0, 0x0, 0x0, 0x70000097fd00, 0x406dd70, 0x70000097fd78, 0x406bbed, 0xc0000e6000, 0x70000097fd38, ...)
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/sys_darwin_amd64.s:579
        
        goroutine 111 [GC worker (idle)]:
        runtime.systemstack_switch()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/asm_amd64.s:330 fp=0xc0000db708 sp=0xc0000db700 pc=0x406a1c0
        runtime.gcMarkDone()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1467 +0x105 fp=0xc0000db760 sp=0xc0000db708 pc=0x401d985
        runtime.gcBgMarkWorker(0xc000026000)
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:2018 +0x2af fp=0xc0000db7d8 sp=0xc0000db760 pc=0x401eb0f
        runtime.goexit()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/asm_amd64.s:1374 +0x1 fp=0xc0000db7e0 sp=0xc0000db7d8 pc=0x406bf81
        created by runtime.gcBgMarkStartWorkers
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1839 +0x77
        
        goroutine 1 [runnable]:
        main.CgoCallbackGC()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:90 +0x166
        main.main()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/main.go:34 +0x1da
        
        goroutine 128 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 127 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 126 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 124 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 132 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 133 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 134 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 135 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 136 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 138 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 140 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 142 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 143 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 144 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 145 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 146 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 147 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 149 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 150 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 152 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 154 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 155 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 157 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 158 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 159 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 162 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 171 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 172 [runnable]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 177 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 182 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 187 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 199 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 200 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 201 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 204 [syscall]:
        main._Cfunc_foo()
        	_cgo_gotypes.go:244 +0x45
        main.CgoCallbackGC.func2(0xc000018360)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:85 +0x25
        created by main.CgoCallbackGC
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:84 +0x130
        
        goroutine 244 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 254 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 256 [runnable, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 259 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 285 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 288 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1100 +0x65
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 300 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 301 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 302 [runnable, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 303 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 304 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 305 [runnable, locked to thread]:
        main.grow1(0xc001dbfe60, 0xc001db03b0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:57 +0x8c
        main.grow1(0xc0008fbe60, 0xc0008ec3e0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec410, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec440, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec470, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec4a0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec4d0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec500, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec530, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec560, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec590, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec5c0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec5f0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec620, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec650, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec680, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec6b0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec6e0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec710, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec740, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec770, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec7a0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec7d0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec800, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec830, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec860, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec890, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec8c0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec8f0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec920, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec950, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec980, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec9b0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ec9e0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008eca10, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008eca40, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008eca70, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecaa0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecad0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecb00, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecb30, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecb60, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecb90, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecbc0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecbf0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecc20, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecc50, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecc80, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008eccb0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecce0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecd10, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecd40, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecd70, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecda0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecdd0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ece00, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ece30, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ece60, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ece90, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecec0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecef0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecf20, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecf50, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecf80, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecfb0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ecfe0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed010, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed040, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed070, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed0a0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed0d0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed100, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed130, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed160, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed190, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed1c0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed1f0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed220, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed250, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed280, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed2b0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed2e0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed310, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed340, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed370, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed3a0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed3d0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed400, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed430, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed460, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed490, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed4c0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed4f0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed520, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed550, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed580, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed5b0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed5e0, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed610, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc0008fbe60, 0xc0008ed640, 0xc0008f3e60)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        ...additional frames elided...
        
        goroutine 307 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1100 +0x65
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 308 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 310 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 311 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 313 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 316 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 317 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1100 +0x65
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 318 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 319 [runnable, locked to thread]:
        main.grow1(0xc001d9fe60, 0xc001d903b0, 0x18a80de)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:57 +0x8c
        main.grow1(0xc001d5fe60, 0xc001d503e0, 0x18a65b9)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50410, 0x18a4a93)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50440, 0x18a2f6c)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50470, 0x18a1444)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d504a0, 0x189f91b)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d504d0, 0x189ddf1)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50500, 0x189c2c6)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50530, 0x189a79a)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50560, 0x1898c6d)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50590, 0x189713f)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d505c0, 0x1895610)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d505f0, 0x1893ae0)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50620, 0x1891faf)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50650, 0x189047d)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50680, 0x188e94a)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d506b0, 0x188ce16)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d506e0, 0x188b2e1)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50710, 0x18897ab)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50740, 0x1887c74)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50770, 0x188613c)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d507a0, 0x1884603)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d507d0, 0x1882ac9)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50800, 0x1880f8e)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50830, 0x187f452)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50860, 0x187d915)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50890, 0x187bdd7)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d508c0, 0x187a298)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d508f0, 0x1878758)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50920, 0x1876c17)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50950, 0x18750d5)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50980, 0x1873592)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d509b0, 0x1871a4e)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d509e0, 0x186ff09)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50a10, 0x186e3c3)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50a40, 0x186c87c)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50a70, 0x186ad34)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50aa0, 0x18691eb)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50ad0, 0x18676a1)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50b00, 0x1865b56)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50b30, 0x186400a)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50b60, 0x18624bd)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50b90, 0x186096f)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50bc0, 0x185ee20)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50bf0, 0x185d2d0)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50c20, 0x185b77f)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50c50, 0x1859c2d)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50c80, 0x18580da)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50cb0, 0x1856586)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50ce0, 0x1854a31)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50d10, 0x1852edb)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50d40, 0x1851384)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50d70, 0x184f82c)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50da0, 0x184dcd3)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50dd0, 0x184c179)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50e00, 0x184a61e)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50e30, 0x1848ac2)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50e60, 0x1846f65)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50e90, 0x1845407)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50ec0, 0x18438a8)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50ef0, 0x1841d48)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50f20, 0x18401e7)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50f50, 0x183e685)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50f80, 0x183cb22)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50fb0, 0x183afbe)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d50fe0, 0x1839459)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51010, 0x18378f3)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51040, 0x1835d8c)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51070, 0x1834224)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d510a0, 0x18326bb)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d510d0, 0x1830b51)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51100, 0x182efe6)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51130, 0x182d47a)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51160, 0x182b90d)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51190, 0x1829d9f)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d511c0, 0x1828230)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d511f0, 0x18266c0)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51220, 0x1824b4f)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51250, 0x1822fdd)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51280, 0x182146a)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d512b0, 0x181f8f6)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d512e0, 0x181dd81)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51310, 0x181c20b)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51340, 0x181a694)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51370, 0x1818b1c)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d513a0, 0x1816fa3)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d513d0, 0x1815429)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51400, 0x18138ae)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51430, 0x1811d32)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51460, 0x18101b5)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51490, 0x180e637)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d514c0, 0x180cab8)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d514f0, 0x180af38)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51520, 0x18093b7)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51550, 0x1807835)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51580, 0x1805cb2)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d515b0, 0x180412e)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d515e0, 0x18025a9)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51610, 0x1800a23)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        main.grow1(0xc001d5fe60, 0xc001d51640, 0x17fee9c)
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:63 +0x73
        ...additional frames elided...
        
        goroutine 320 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 321 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 322 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 323 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 324 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 325 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 326 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 327 [runnable, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 328 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 329 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 337 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 338 [wait for GC cycle, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1092 +0x33
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
        
        goroutine 340 [semacquire, locked to thread]:
        runtime.GC()
        	/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/mgc.go:1097 +0x58
        main.go_callback()
        	/private/var/folders/9w/4l2_g3kx01x199n37fbmv3s80000gn/T/workdir-host-darwin-10_14/go/src/runtime/testdata/testprogcgo/callback.go:44 +0x5d
        main._cgoexpwrap_f78bc43f7a96_go_callback()
        	_cgo_gotypes.go:448 +0x25
FAIL
FAIL	runtime	30.756s
ok  	runtime/debug	0.092s
FAIL
go tool dist: Failed: exit status 1