freebsd-amd64-12_0 at 8cec640170f927517999d509812c424071f7ed09

:: Running /tmp/workdir/go/src/make.bash with args ["/tmp/workdir/go/src/make.bash"] and env ["PATH=/bin:/sbin:/usr/bin:/usr/local/bin" "PWD=/" "HOME=/" "RC_PID=24" "WORKDIR=/tmp/workdir" "GOROOT_BOOTSTRAP=/tmp/workdir/go1.4" "GO_BUILDER_NAME=freebsd-amd64-12_0" "GOBIN=" "TMPDIR=/tmp/workdir/tmp" "GOCACHE=/tmp/workdir/gocache"] in dir /tmp/workdir/go/src

Building Go cmd/dist using /tmp/workdir/go1.4. (go1.4.1 freebsd/amd64)
Building Go toolchain1 using /tmp/workdir/go1.4.
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 freebsd/amd64.
# crypto/x509
src/crypto/x509/verify.go:113:20: undefined: validHostnamePattern
src/crypto/x509/verify.go:117:18: undefined: validHostnamePattern
go tool dist: FAILED: /tmp/workdir/go/pkg/tool/freebsd_amd64/go_bootstrap install -gcflags=all= -ldflags=all= std cmd: exit status 2


Error: build failed: make script failed: exit status 2