[INFO] fetching crate practicegrep 0.1.0...
[INFO] checking practicegrep-0.1.0 against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] extracting crate practicegrep 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] checking practicegrep-0.1.0 against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] extracting crate practicegrep 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate practicegrep 0.1.0 on toolchain 1bd50d4315eb15970d395b6be5823f9384707693
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate practicegrep 0.1.0
[INFO] finished tweaking crates.io crate practicegrep 0.1.0
[INFO] tweaked toml for crates.io crate practicegrep 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate practicegrep 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" "+1bd50d4315eb15970d395b6be5823f9384707693" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70b20d9add1e2f775f4c8384fbbf22ffe745a53c42dafa10c375267007aa2975
[INFO] running `Command { std: "docker" "start" "-a" "70b20d9add1e2f775f4c8384fbbf22ffe745a53c42dafa10c375267007aa2975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70b20d9add1e2f775f4c8384fbbf22ffe745a53c42dafa10c375267007aa2975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b20d9add1e2f775f4c8384fbbf22ffe745a53c42dafa10c375267007aa2975", kill_on_drop: false }`
[INFO] [stdout] 70b20d9add1e2f775f4c8384fbbf22ffe745a53c42dafa10c375267007aa2975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2997ca37255d7d9ed9c57d7081acc387228a91180feacd03f6f14954853eff1f
[INFO] running `Command { std: "docker" "start" "-a" "2997ca37255d7d9ed9c57d7081acc387228a91180feacd03f6f14954853eff1f", kill_on_drop: false }`
[INFO] [stderr]     Checking practicegrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "2997ca37255d7d9ed9c57d7081acc387228a91180feacd03f6f14954853eff1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2997ca37255d7d9ed9c57d7081acc387228a91180feacd03f6f14954853eff1f", kill_on_drop: false }`
[INFO] [stdout] 2997ca37255d7d9ed9c57d7081acc387228a91180feacd03f6f14954853eff1f