[INFO] crate cobalt-bin 0.15.4 is already in cache
[INFO] extracting crate cobalt-bin 0.15.4 into work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/cobalt-bin/0.15.4
[ERROR] No such file or directory (os error 2)
[INFO] retrying in 10ms
[ERROR] No such file or directory (os error 2)
[INFO] retrying in 20ms
[ERROR] this task or one of its parent failed!
[ERROR] unable to download cobalt-bin version 0.15.4
[ERROR] caused by: failed to fill whole buffer
[ERROR]