#!watchflakes
default <- log ~ `can't write to output file` && goos == "darwin"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestDWARF/c-archive/testprog
=== PAUSE TestDWARF/c-archive/testprog
=== CONT  TestDWARF/c-archive/testprog
    dwarf_test.go:119: go build -o /Users/swarming/.swarming/w/ir/x/t/TestDWARFc-archivetestprog36090819/001/testprog.exe ../../runtime/testdata/testprog: exit status 1
        # runtime/testdata/testprog
        /Users/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/darwin_amd64/link: running /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar failed: exit status 1
        warning: /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: archive library: $WORK/b001/exe/a.out.a the table of contents is empty (no object file members in the library define global symbols)
        fatal error: /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: can't write to output file (Device error)
        /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar: internal ranlib command failed

--- FAIL: TestDWARF/c-archive/testprog (17.01s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/link" && test == "TestDWARF/c-archive/testprog"
2025-08-04 16:33 gotip-darwin-amd64-longtest go@d7bd7773 cmd/link.TestDWARF/c-archive/testprog (log) === RUN TestDWARF/c-archive/testprog === PAUSE TestDWARF/c-archive/testprog === CONT TestDWARF/c-archive/testprog dwarf_test.go:119: go build -o /Users/swarming/.swarming/w/ir/x/t/TestDWARFc-archivetestprog36090819/001/testprog.exe ../../runtime/testdata/testprog: exit status 1 # runtime/testdata/testprog /Users/swarming/.swarming/w/ir/x/w/goroot/pkg/tool/darwin_amd64/link: running /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar failed: exit status 1 warning: /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: archive library: $WORK/b001/exe/a.out.a the table of contents is empty (no object file members in the library define global symbols) fatal error: /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: can't write to output file (Device error) /Users/swarming/.swarming/w/ir/cache/tools/15e204a/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar: internal ranlib command failed --- FAIL: TestDWARF/c-archive/testprog (17.01s)

— watchflakes

Comment From: mknyszek

This seems to be just bad bots, they also fail to install Xcode later. Maybe a disk space bug?

Comment From: mknyszek

Related to #74852.

Comment From: gopherbot

Timed out in state WaitingForInfo. Closing.

(I am just a bot, though. Please speak up if this is a mistake or you have the requested information.)