[INFO] fetching crate num-t 3.0.0...
[INFO] checking num-t-3.0.0 against master#4b596bbd847672da87763b76171687d3544863c2 for pr-144544
[INFO] extracting crate num-t 3.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate num-t 3.0.0
[INFO] finished tweaking crates.io crate num-t 3.0.0
[INFO] tweaked toml for crates.io crate num-t 3.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate num-t 3.0.0 on toolchain 4b596bbd847672da87763b76171687d3544863c2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate num-t 3.0.0 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" "+4b596bbd847672da87763b76171687d3544863c2" "fetch" "--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: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 836541ee4a583ad0ed3da12dbabb16e877ee1e40ec6e438b32e17615c90f08c8
[INFO] running `Command { std: "docker" "start" "-a" "836541ee4a583ad0ed3da12dbabb16e877ee1e40ec6e438b32e17615c90f08c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "836541ee4a583ad0ed3da12dbabb16e877ee1e40ec6e438b32e17615c90f08c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "836541ee4a583ad0ed3da12dbabb16e877ee1e40ec6e438b32e17615c90f08c8", kill_on_drop: false }`
[INFO] [stdout] 836541ee4a583ad0ed3da12dbabb16e877ee1e40ec6e438b32e17615c90f08c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b6e5d868b64ab442380a6a7d49ea2bc89ec7ed5e8a6969e87f4a5e93fe417d6
[INFO] running `Command { std: "docker" "start" "-a" "5b6e5d868b64ab442380a6a7d49ea2bc89ec7ed5e8a6969e87f4a5e93fe417d6", 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/cargo-home" to rootfs at "/opt/rustwide/cargo-home": create mountpoint for /opt/rustwide/cargo-home mount: mkdirat /var/lib/docker/overlay2/83452f42c236ba8635387ad594e32f7d32f1cf979a5aef28097df167ad7a981a/merged/opt/rustwide/cargo-home: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "5b6e5d868b64ab442380a6a7d49ea2bc89ec7ed5e8a6969e87f4a5e93fe417d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6e5d868b64ab442380a6a7d49ea2bc89ec7ed5e8a6969e87f4a5e93fe417d6", kill_on_drop: false }`
[INFO] [stdout] 5b6e5d868b64ab442380a6a7d49ea2bc89ec7ed5e8a6969e87f4a5e93fe417d6