[INFO] fetching crate montyc 0.0.0...
[INFO] checking montyc-0.0.0 against master#be181dd75c83d72fcc95538e235768bc367b76b9 for pr-140208
[INFO] extracting crate montyc 0.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate montyc 0.0.0 on toolchain be181dd75c83d72fcc95538e235768bc367b76b9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate montyc 0.0.0
[INFO] finished tweaking crates.io crate montyc 0.0.0
[INFO] tweaked toml for crates.io crate montyc 0.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate montyc 0.0.0 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" "+be181dd75c83d72fcc95538e235768bc367b76b9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0479a329457a18bb1b94bc5588b9f5bc47af3a6a7b16c7a0f793053bede5642c
[INFO] running `Command { std: "docker" "start" "-a" "0479a329457a18bb1b94bc5588b9f5bc47af3a6a7b16c7a0f793053bede5642c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0479a329457a18bb1b94bc5588b9f5bc47af3a6a7b16c7a0f793053bede5642c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0479a329457a18bb1b94bc5588b9f5bc47af3a6a7b16c7a0f793053bede5642c", kill_on_drop: false }`
[INFO] [stdout] 0479a329457a18bb1b94bc5588b9f5bc47af3a6a7b16c7a0f793053bede5642c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acd4e9c71d95286954f27f22e2648f5389af4580453c8eeceed6f59f446766da
[INFO] running `Command { std: "docker" "start" "-a" "acd4e9c71d95286954f27f22e2648f5389af4580453c8eeceed6f59f446766da", kill_on_drop: false }`
[INFO] [stderr]     Checking montyc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "acd4e9c71d95286954f27f22e2648f5389af4580453c8eeceed6f59f446766da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd4e9c71d95286954f27f22e2648f5389af4580453c8eeceed6f59f446766da", kill_on_drop: false }`
[INFO] [stdout] acd4e9c71d95286954f27f22e2648f5389af4580453c8eeceed6f59f446766da