[INFO] fetching crate connect_four 0.1.8...
[INFO] checking connect_four-0.1.8 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate connect_four 0.1.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate connect_four 0.1.8 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate connect_four 0.1.8
[INFO] finished tweaking crates.io crate connect_four 0.1.8
[INFO] tweaked toml for crates.io crate connect_four 0.1.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate connect_four 0.1.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16ce830cf242957ec105bdb3a6a7b88e6a4f780c444bc7aa597c2271c35a69cd
[INFO] running `Command { std: "docker" "start" "-a" "16ce830cf242957ec105bdb3a6a7b88e6a4f780c444bc7aa597c2271c35a69cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16ce830cf242957ec105bdb3a6a7b88e6a4f780c444bc7aa597c2271c35a69cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ce830cf242957ec105bdb3a6a7b88e6a4f780c444bc7aa597c2271c35a69cd", kill_on_drop: false }`
[INFO] [stdout] 16ce830cf242957ec105bdb3a6a7b88e6a4f780c444bc7aa597c2271c35a69cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3654f83388e7deb57ab3656d4b82423a1345184e5555fc0067a5129a6c6d07fb
[INFO] running `Command { std: "docker" "start" "-a" "3654f83388e7deb57ab3656d4b82423a1345184e5555fc0067a5129a6c6d07fb", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking mio v0.7.5
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking crossterm v0.18.2
[INFO] [stderr]     Checking connect_four v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "3654f83388e7deb57ab3656d4b82423a1345184e5555fc0067a5129a6c6d07fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3654f83388e7deb57ab3656d4b82423a1345184e5555fc0067a5129a6c6d07fb", kill_on_drop: false }`
[INFO] [stdout] 3654f83388e7deb57ab3656d4b82423a1345184e5555fc0067a5129a6c6d07fb