Please answer these questions before submitting your issue. Thanks!

1. What version of Go are you using (go version)?

1.7 beta 2

1. What operating system and processor architecture are you using (go env)?

Linux.

1. What did you do?

Ran the tests under a new-ish version of sbuild, which prevents writing to $HOME by setting it to /sbuild-nonexistent.

1. What did you expect to see?

The tests pass.

1. What did you see instead?

They failed like this:

--- FAIL: TestCgoPprof (1.39s)
    crash_cgo_test.go:256: failed to access temp dir /sbuild-nonexistent/pprof: mkdir /sbuild-nonexistent: permission denied
    crash_cgo_test.go:258: exit status 1

There a few ways this could be fixed I guess (only create that directory when it is about to be written into?) but the simplest would I think be to set PPROF_TMPDIR to TMPDIR (or /tmp) in the tests.