[INFO] fetching crate chess-engine 0.1.0...
[INFO] checking chess-engine-0.1.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate chess-engine 0.1.0 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate chess-engine 0.1.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chess-engine 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate chess-engine 0.1.0
[INFO] tweaked toml for crates.io crate chess-engine 0.1.0 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate crates.io crate chess-engine 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41bae74aa0927990e8f613880d584b2a8b39f6442ff38e7ee5dbd64331067fec
[INFO] running `Command { std: "docker" "start" "-a" "41bae74aa0927990e8f613880d584b2a8b39f6442ff38e7ee5dbd64331067fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41bae74aa0927990e8f613880d584b2a8b39f6442ff38e7ee5dbd64331067fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41bae74aa0927990e8f613880d584b2a8b39f6442ff38e7ee5dbd64331067fec", kill_on_drop: false }`
[INFO] [stdout] 41bae74aa0927990e8f613880d584b2a8b39f6442ff38e7ee5dbd64331067fec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f81b3acc0be6082c701962bb6ac594a101e25e2de6d125ac9f3ed2a69db06c6c
[INFO] running `Command { std: "docker" "start" "-a" "f81b3acc0be6082c701962bb6ac594a101e25e2de6d125ac9f3ed2a69db06c6c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking chess-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.63s
[INFO] running `Command { std: "docker" "inspect" "f81b3acc0be6082c701962bb6ac594a101e25e2de6d125ac9f3ed2a69db06c6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f81b3acc0be6082c701962bb6ac594a101e25e2de6d125ac9f3ed2a69db06c6c", kill_on_drop: false }`
[INFO] [stdout] f81b3acc0be6082c701962bb6ac594a101e25e2de6d125ac9f3ed2a69db06c6c