[INFO] fetching crate unicode-matching 0.5.4...
[INFO] checking unicode-matching-0.5.4 against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] extracting crate unicode-matching 0.5.4 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate unicode-matching 0.5.4 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-matching 0.5.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate unicode-matching 0.5.4
[INFO] tweaked toml for crates.io crate unicode-matching 0.5.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate unicode-matching 0.5.4 already has a lockfile, it will not be regenerated
[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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4aca778b8c5d73da47142de2b09c5bd97e2dde0cb88cd3df6478e67d1444302c
[INFO] running `Command { std: "docker" "start" "-a" "4aca778b8c5d73da47142de2b09c5bd97e2dde0cb88cd3df6478e67d1444302c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aca778b8c5d73da47142de2b09c5bd97e2dde0cb88cd3df6478e67d1444302c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aca778b8c5d73da47142de2b09c5bd97e2dde0cb88cd3df6478e67d1444302c", kill_on_drop: false }`
[INFO] [stdout] 4aca778b8c5d73da47142de2b09c5bd97e2dde0cb88cd3df6478e67d1444302c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b2195bbc5bf23b0db6997a82eb74b0b8bfb843663068ce204739dc3eb8d27e0
[INFO] running `Command { std: "docker" "start" "-a" "5b2195bbc5bf23b0db6997a82eb74b0b8bfb843663068ce204739dc3eb8d27e0", kill_on_drop: false }`
[INFO] [stderr] 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-2-tc1/target" to rootfs at "/opt/rustwide/target": mkdir /var/lib/docker/overlay2/d0f49ef5781786f6268900def436a7cf4b429e1773f14428e1960d5158f55789/merged/opt/rustwide/target: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "5b2195bbc5bf23b0db6997a82eb74b0b8bfb843663068ce204739dc3eb8d27e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2195bbc5bf23b0db6997a82eb74b0b8bfb843663068ce204739dc3eb8d27e0", kill_on_drop: false }`
[INFO] [stdout] 5b2195bbc5bf23b0db6997a82eb74b0b8bfb843663068ce204739dc3eb8d27e0