Return names of grpc errors
this would make logs like the following a bit more informative:
[00:00:25] FAILURE bootstrap/binutils-build-deps.bst: Failed to push artifact blobs: Unexpected error in RPC handlingEdited by Darius Makovsky
this would make logs like the following a bit more informative:
[00:00:25] FAILURE bootstrap/binutils-build-deps.bst: Failed to push artifact blobs: Unexpected error in RPC handling