Looks like a Google Storage glitch.

The error message says "Please retry this download" and it would seem that we retry once.  But from the log it would seem that we don't stop at the second failure, instead we try to source the file, which doesn't exist.  Why do we do that?

Also, there are too few time stamps, and also, the two download progress lists are identical, so one suspects that we didn't really retry, just printed the log twice.  This sort of things make the root errors hard to pinpoint, and there is a mismatch: the producer of these messages (someone in the infra team) is not the first-line consumer (the sheriff).


https://uberchromegw.corp.google.com/i/chromeos/builders/tricky-paladin/builds/7109/steps/BuildPackages/logs/stdio

Fetched sys-devel/llvm-3.8.1-r2 in 143.07s
=== Start output for job llvm-3.8.1-r2 (2m23.1s) ===
llvm-3.8.1-r2: >>> Fetching (1 of 1) sys-devel/llvm-3.8.1-r2::chromiumos for /build/tricky/
llvm-3.8.1-r2: 14:55:35: INFO: RunCommand: /mnt/host/source/.cache/common/gsutil_4.19.tar.gz/gsutil/gsutil -o 'Boto:num_retries=10' cp -v -- gs://chromeos-prebuilt/board/tricky/paladin-R57-9179.0.0-rc3/packages/sys-devel/llvm-3.8.1-r2.tbz2 /build/tricky/packages/sys-devel/llvm-3.8.1-r2.tbz2.tmp
llvm-3.8.1-r2: 14:57:57: WARNING: GS_ERROR: Copying gs://chromeos-prebuilt/board/tricky/paladin-R57-9179.0.0-rc3/packages/sys-devel/llvm-3.8.1-r2.tbz2...
llvm-3.8.1-r2: Downloading ...tricky/packages/sys-devel/llvm-3.8.1-r2.tbz2.tmp: 0 B/198.04 MiB    
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llvm-3.8.1-r2: ('The read operation timed out',)
llvm-3.8.1-r2: CommandException: Some components of /build/tricky/packages/sys-devel/llvm-3.8.1-r2.tbz2.tmp were not downloaded successfully. Please retry this download.
llvm-3.8.1-r2:  
llvm-3.8.1-r2: 14:57:57: ERROR: return code: 1; command: /mnt/host/source/.cache/common/gsutil_4.19.tar.gz/gsutil/gsutil -o 'Boto:num_retries=10' cp -v -- gs://chromeos-prebuilt/board/tricky/paladin-R57-9179.0.0-rc3/packages/sys-devel/llvm-3.8.1-r2.tbz2 /build/tricky/packages/sys-devel/llvm-3.8.1-r2.tbz2.tmp
llvm-3.8.1-r2: Copying gs://chromeos-prebuilt/board/tricky/paladin-R57-9179.0.0-rc3/packages/sys-devel/llvm-3.8.1-r2.tbz2...
llvm-3.8.1-r2: Downloading ...tricky/packages/sys-devel/llvm-3.8.1-r2.tbz2.tmp: 0 B/198.04 MiB    
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llvm-3.8.1-r2: ('The read operation timed out',)
llvm-3.8.1-r2: CommandException: Some components of /build/tricky/packages/sys-devel/llvm-3.8.1-r2.tbz2.tmp were not downloaded successfully. Please retry this download.
llvm-3.8.1-r2: 
llvm-3.8.1-r2: cmd=['/mnt/host/source/.cache/common/gsutil_4.19.tar.gz/gsutil/gsutil', '-o', 'Boto:num_retries=10', 'cp', '-v', '--', 'gs://chromeos-prebuilt/board/tricky/paladin-R57-9179.0.0-rc3/packages/sys-devel/llvm-3.8.1-r2.tbz2', '/build/tricky/packages/sys-devel/llvm-3.8.1-r2.tbz2.tmp'], extra env={'BOTO_CONFIG': '/mnt/host/source/src/private-overlays/chromeos-overlay/googlestorage_account.boto'}
llvm-3.8.1-r2: >>> Failed to emerge sys-devel/llvm-3.8.1-r2 for /build/tricky/
=== Complete: job llvm-3.8.1-r2 (2m23.1s) ===
Started sys-devel/llvm-3.8.1-r2 (logged in /tmp/llvm-3.8.1-r2-xefCud)
=== Start output for job llvm-3.8.1-r2 (0m0.7s) ===
llvm-3.8.1-r2: >>> Running pre-merge checks for sys-devel/llvm-3.8.1-r2
llvm-3.8.1-r2: /usr/lib64/portage/bin/ebuild.sh: line 570: /build/tricky/tmp/portage/sys-devel/llvm-3.8.1-r2/build-info/llvm-3.8.1-r2.ebuild: No such file or directory
llvm-3.8.1-r2:  * ERROR: sys-devel/llvm-3.8.1-r2::chromiumos failed (pretend phase):
llvm-3.8.1-r2:  *   error sourcing ebuild