This has been observed flakily for over 24 hours and is frequently blocking changes in the CQ due to failures on at least win_chromium_compile_dbg_ng and win_chromium_x64_rel_ng.
The compile (with patch) step fails as below. Compile (without patch) does not seem to fail, but the with-patch failure is the same independent of which patch has been applied.
Sample output:
https://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_compile_dbg_ng/builds/155688/steps/compile%20%28with%20patch%29/logs/stdio
The first such failure observed on win_chromium_compile_dbg_ng is:
https://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_compile_dbg_ng/builds/155617
though there do not appear to be any relevant changes around that time.
Log Excerpt:
Archive ..\..\..\..\out\Debug/gen/tc_pnacl_newlib/lib/libnacl.a
WindowsError [Error 32] The process cannot access the file because it is being used by another process: 'E:\\b\\build\\slave\\win\\build\\src\\out\\Debug\\gen\\tc_pnacl_newlib\\lib\\libnacl.a' while removing ..\..\..\..\out\Debug/gen/tc_pnacl_newlib/lib/libnacl.a retry=0
WindowsError [Error 32] The process cannot access the file because it is being used by another process: 'E:\\b\\build\\slave\\win\\build\\src\\out\\Debug\\gen\\tc_pnacl_newlib\\lib\\libnacl.a' while removing ..\..\..\..\out\Debug/gen/tc_pnacl_newlib/lib/libnacl.a retry=1
WindowsError [Error 32] The process cannot access the file because it is being used by another process: 'E:\\b\\build\\slave\\win\\build\\src\\out\\Debug\\gen\\tc_pnacl_newlib\\lib\\libnacl.a' while removing ..\..\..\..\out\Debug/gen/tc_pnacl_newlib/lib/libnacl.a retry=2
WindowsError [Error 32] The process cannot access the file because it is being used by another process: 'E:\\b\\build\\slave\\win\\build\\src\\out\\Debug\\gen\\tc_pnacl_newlib\\lib\\libnacl.a' while removing ..\..\..\..\out\Debug/gen/tc_pnacl_newlib/lib/libnacl.a retry=3
WindowsError [Error 32] The process cannot access the file because it is being used by another process: 'E:\\b\\build\\slave\\win\\build\\src\\out\\Debug\\gen\\tc_pnacl_newlib\\lib\\libnacl.a' while removing ..\..\..\..\out\Debug/gen/tc_pnacl_newlib/lib/libnacl.a retry=4
WindowsError [Error 32] The process cannot access the file because it is being used by another process: 'E:\\b\\build\\slave\\win\\build\\src\\out\\Debug\\gen\\tc_pnacl_newlib\\lib\\libnacl.a' while removing ..\..\..\..\out\Debug/gen/tc_pnacl_newlib/lib/libnacl.a retry=5
ninja: build stopped: subcommand failed.
E:\b\depot_tools\python276_bin\python.exe E:\b\build\goma\goma_ctl.py jsonstatus c:\users\chrome~2\appdata\local\temp\tmpesbfom.json
E:\b\depot_tools\python276_bin\python.exe E:\b\build\goma\goma_ctl.py stop
Killing compiler proxy.
compiler proxy status: http://127.0.0.1:8088 quit!
Comment 1 by stip@chromium.org
, Mar 30 2016