[INFO] fetching crate unicode-utf8 0.1.3...
[INFO] checking unicode-utf8-0.1.3 against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] extracting crate unicode-utf8 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate unicode-utf8 0.1.3 on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unicode-utf8 0.1.3
[INFO] finished tweaking crates.io crate unicode-utf8 0.1.3
[INFO] tweaked toml for crates.io crate unicode-utf8 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f13e63d7ce5dbb96d25053ff3a1c5ed68f44d58858d1bc89260587c2e43cc24e
[INFO] running `Command { std: "docker" "start" "-a" "f13e63d7ce5dbb96d25053ff3a1c5ed68f44d58858d1bc89260587c2e43cc24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f13e63d7ce5dbb96d25053ff3a1c5ed68f44d58858d1bc89260587c2e43cc24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13e63d7ce5dbb96d25053ff3a1c5ed68f44d58858d1bc89260587c2e43cc24e", kill_on_drop: false }`
[INFO] [stdout] f13e63d7ce5dbb96d25053ff3a1c5ed68f44d58858d1bc89260587c2e43cc24e


command failed: exit status: 1

Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target" to rootfs at "/opt/rustwide/target": mkdir /var/lib/docker/overlay2/ed749db9b00f34c7ecd98f44f6d75c46272e98141515192c467adae5157429cb/merged/opt/rustwide/target: no space left on device: unknown