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cmd/go: compiler tests fail with ccache #26789

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mpx opened this issue Aug 3, 2018 · 2 comments
Closed

cmd/go: compiler tests fail with ccache #26789

mpx opened this issue Aug 3, 2018 · 2 comments
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@mpx
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mpx commented Aug 3, 2018

Go compiler tests started failing at 3acd257 when ccache is installed. The new Go test requires CGO and sets HOME to a non-existent directory. This break since ccache is unable to create its cache directory. A simple fix is to set CCACHE_DISABLE=1 to force ccache to use the real compiler. Fixing this fault will avoid confusing failures on systems where ccache is the default system compiler (eg, Fedora).

Related: #17668

@ianlancetaylor
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Change https://golang.org/cl/127775 mentions this issue: cmd/go: disable ccache when setting HOME to non-existent dir

@mpx
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mpx commented Aug 3, 2018

Example test failure:

--- FAIL: TestScript (0.00s)
    --- FAIL: TestScript/mod_case_cgo (0.16s)
        script_test.go:150:
            > env GO111MODULE=on
            > go get rsc.io/CGO
            [stderr]
            go: finding rsc.io/CGO v1.0.0
            go: downloading rsc.io/CGO v1.0.0
            # rsc.io/CGO
            ccache: error: Failed to create directory /no-home/.ccache/tmp: Permission denied
            [exit status 2]
            FAIL: testdata/script/mod_case_cgo.txt:3: unexpected command failure

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