<pre class="notranslate">What steps will reproduce the problem?

cd C:\MinGW\go\src\pkg\path\filepath
go test -i
copy /b path.go +,,
go test

(copy command is equivalent of unix touch command)

What is the expected output?

warning: building out-of-date packages:
        io/ioutil
installing these packages with 'go test -i' will speed future tests.

PASS
ok      path/filepath   0.078s

What do you see instead?

PASS
ok      _/C_/MinGW/go/src/pkg/path/filepath     0.094s

Please use labels and text to provide additional information.

hg id prints c901fddcc4cb tip

My environment is

GOARCH=386
GOBIN=c:\mingw\go\bin
GOROOT=c:\mingw\go

If I change GOROOT variable to

GOROOT=C:\mingw\go

everything works as expected.</pre>
<p dir="auto">by <strong><a href="mailto:emery@fuzzlabs.org">emery@fuzzlabs.org</a></strong>:</p>
<pre class="notranslate">What steps will reproduce the problem?
  net.Dial("tcp", "... ")
  <a href="http://play.golang.org/p/2tbP5ewNlp" rel="nofollow">http://play.golang.org/p/2tbP5ewNlp</a>

What is the expected output?
  &amp;{0x... }
  &amp;{0x... }

What do you see instead?
  dial tcp google.com:80: i/o timeout
  &amp;{{0x... }}


Which compiler are you using (5g, 6g, 8g, gccgo)?
  8g


Which operating system are you using?
  plan9/386 (pfront)

Which version are you using?  (run 'go version')
  devel +9bf97fe54385

There seems to be a similar problem on windows, but with UDP instead of TCP
<a href="https://golang.org/issue/5349" rel="nofollow">https://golang.org/issue/5349</a></pre>