[INFO] fetching crate vulcan 0.1.0...
[INFO] checking vulcan-0.1.0 against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193
[INFO] extracting crate vulcan 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate vulcan 0.1.0
[INFO] finished tweaking crates.io crate vulcan 0.1.0
[INFO] tweaked toml for crates.io crate vulcan 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vulcan 0.1.0 on toolchain f21fbac535ab2c3bc50db20547f4d48477357103
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vulcan 0.1.0 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" "+f21fbac535ab2c3bc50db20547f4d48477357103" "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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd347edf8a2cbeb4845553c63d09c6caa06dc28f7563895e99fdc92bc4c75818
[INFO] running `Command { std: "docker" "start" "-a" "bd347edf8a2cbeb4845553c63d09c6caa06dc28f7563895e99fdc92bc4c75818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd347edf8a2cbeb4845553c63d09c6caa06dc28f7563895e99fdc92bc4c75818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd347edf8a2cbeb4845553c63d09c6caa06dc28f7563895e99fdc92bc4c75818", kill_on_drop: false }`
[INFO] [stdout] bd347edf8a2cbeb4845553c63d09c6caa06dc28f7563895e99fdc92bc4c75818
[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_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" "+f21fbac535ab2c3bc50db20547f4d48477357103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0b366e122c7d9266fd224852a560c8f6deebc0bf8e17f959f0151a98a3a111b
[INFO] running `Command { std: "docker" "start" "-a" "d0b366e122c7d9266fd224852a560c8f6deebc0bf8e17f959f0151a98a3a111b", kill_on_drop: false }`
[INFO] [stderr]     Checking vulcan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "d0b366e122c7d9266fd224852a560c8f6deebc0bf8e17f959f0151a98a3a111b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b366e122c7d9266fd224852a560c8f6deebc0bf8e17f959f0151a98a3a111b", kill_on_drop: false }`
[INFO] [stdout] d0b366e122c7d9266fd224852a560c8f6deebc0bf8e17f959f0151a98a3a111b