[INFO] cloning repository https://github.com/dvush/exonum_pb_types
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dvush/exonum_pb_types" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvush%2Fexonum_pb_types", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvush%2Fexonum_pb_types'...
[INFO] [stderr] error: unable to write symref for HEAD: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/dvush/exonum_pb_types
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dvush/exonum_pb_types" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvush%2Fexonum_pb_types", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvush%2Fexonum_pb_types'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0e4a74d2c356f3f399c26a4da250e8bf242e77f
[INFO] checking dvush/exonum_pb_types against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvush%2Fexonum_pb_types" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: update_ref failed for ref 'HEAD': cannot update the ref 'HEAD': unable to append to '/workspace/builds/worker-6-tc1/source/.git/logs/HEAD': No space left on device


failed to checkout https://github.com/dvush/exonum_pb_types

Caused by:
    command failed: exit status: 128