[INFO] cloning repository https://github.com/jec/exercism-rust-bowling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jec/exercism-rust-bowling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjec%2Fexercism-rust-bowling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjec%2Fexercism-rust-bowling'...
[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/jec/exercism-rust-bowling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jec/exercism-rust-bowling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjec%2Fexercism-rust-bowling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjec%2Fexercism-rust-bowling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43ffc0d6dfeaf54fa8162b17fa1bfea083071570
[INFO] checking jec/exercism-rust-bowling against master#4ecd70ddd1039a3954056c1071e40278048476fa for pr-137633
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjec%2Fexercism-rust-bowling" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jec/exercism-rust-bowling on toolchain 4ecd70ddd1039a3954056c1071e40278048476fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4ecd70ddd1039a3954056c1071e40278048476fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jec/exercism-rust-bowling
[INFO] finished tweaking git repo https://github.com/jec/exercism-rust-bowling


No space left on device (os error 28)