[INFO] fetching crate optcollection 0.1.6...
[INFO] checking optcollection-0.1.6 against try#b32fc44666c052e7cf07ab471bfb6f9ec571902f for pr-138676
[INFO] extracting crate optcollection 0.1.6 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate optcollection 0.1.6 on toolchain b32fc44666c052e7cf07ab471bfb6f9ec571902f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate optcollection 0.1.6
[INFO] finished tweaking crates.io crate optcollection 0.1.6
[INFO] tweaked toml for crates.io crate optcollection 0.1.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d732940482edcfb79b31ca199b4a53ff88ba05e6b9e9259524b3af9c72b56b01
[INFO] running `Command { std: "docker" "start" "-a" "d732940482edcfb79b31ca199b4a53ff88ba05e6b9e9259524b3af9c72b56b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d732940482edcfb79b31ca199b4a53ff88ba05e6b9e9259524b3af9c72b56b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d732940482edcfb79b31ca199b4a53ff88ba05e6b9e9259524b3af9c72b56b01", kill_on_drop: false }`
[INFO] [stdout] d732940482edcfb79b31ca199b4a53ff88ba05e6b9e9259524b3af9c72b56b01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19754091e4d42ed63b62265907fbf76a82701b43e6d310e7aef009163f05d4f4
[INFO] running `Command { std: "docker" "start" "-a" "19754091e4d42ed63b62265907fbf76a82701b43e6d310e7aef009163f05d4f4", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/19754091e4d42ed63b62265907fbf76a82701b43e6d310e7aef009163f05d4f4/hosts: no space left on device
[INFO] running `Command { std: "docker" "inspect" "19754091e4d42ed63b62265907fbf76a82701b43e6d310e7aef009163f05d4f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19754091e4d42ed63b62265907fbf76a82701b43e6d310e7aef009163f05d4f4", kill_on_drop: false }`
[INFO] [stdout] 19754091e4d42ed63b62265907fbf76a82701b43e6d310e7aef009163f05d4f4