[INFO] fetching crate legogroth16 0.17.0...
[INFO] checking legogroth16-0.17.0 against try#7df376b035b3d12ff0386ad8b45b76dbe020257b for pr-142712
[INFO] extracting crate legogroth16 0.17.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate legogroth16 0.17.0
[INFO] finished tweaking crates.io crate legogroth16 0.17.0
[INFO] tweaked toml for crates.io crate legogroth16 0.17.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate legogroth16 0.17.0 on toolchain 7df376b035b3d12ff0386ad8b45b76dbe020257b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate legogroth16 0.17.0 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" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58e886db1e94d0eb513cb2c90b8ed1f1d051c7c1ee1b37875c9f76e0e4c02ff3
[INFO] running `Command { std: "docker" "start" "-a" "58e886db1e94d0eb513cb2c90b8ed1f1d051c7c1ee1b37875c9f76e0e4c02ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58e886db1e94d0eb513cb2c90b8ed1f1d051c7c1ee1b37875c9f76e0e4c02ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58e886db1e94d0eb513cb2c90b8ed1f1d051c7c1ee1b37875c9f76e0e4c02ff3", kill_on_drop: false }`
[INFO] [stdout] 58e886db1e94d0eb513cb2c90b8ed1f1d051c7c1ee1b37875c9f76e0e4c02ff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fabd842b469ade8ddcbe43ee9ee389a5581f37e0fc9852df2477c27732eee964
[INFO] running `Command { std: "docker" "start" "-a" "fabd842b469ade8ddcbe43ee9ee389a5581f37e0fc9852df2477c27732eee964", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "fabd842b469ade8ddcbe43ee9ee389a5581f37e0fc9852df2477c27732eee964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fabd842b469ade8ddcbe43ee9ee389a5581f37e0fc9852df2477c27732eee964", kill_on_drop: false }`
[INFO] [stdout] fabd842b469ade8ddcbe43ee9ee389a5581f37e0fc9852df2477c27732eee964