[INFO] fetching crate list-fn 0.19.1...
[INFO] checking list-fn-0.19.1 against 1.55.0 for beta-1.56-3
[INFO] extracting crate list-fn 0.19.1 into /workspace/builds/worker-79/source
[INFO] validating manifest of crates.io crate list-fn 0.19.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate list-fn 0.19.1
[INFO] finished tweaking crates.io crate list-fn 0.19.1
[INFO] tweaked toml for crates.io crate list-fn 0.19.1 written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fdaa9c0c2f5cd490c6e6d981a29c194bcff28eb3399958df333cf2a392052e1
[INFO] running `Command { std: "docker" "start" "-a" "1fdaa9c0c2f5cd490c6e6d981a29c194bcff28eb3399958df333cf2a392052e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fdaa9c0c2f5cd490c6e6d981a29c194bcff28eb3399958df333cf2a392052e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fdaa9c0c2f5cd490c6e6d981a29c194bcff28eb3399958df333cf2a392052e1", kill_on_drop: false }`
[INFO] [stdout] 1fdaa9c0c2f5cd490c6e6d981a29c194bcff28eb3399958df333cf2a392052e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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=warn" "-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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fe429c93b79040940ec672ac60ff8a49522ecf67c660b797af08da812098ee7
[INFO] running `Command { std: "docker" "start" "-a" "3fe429c93b79040940ec672ac60ff8a49522ecf67c660b797af08da812098ee7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking list-fn v0.19.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/collection.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/collection.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "3fe429c93b79040940ec672ac60ff8a49522ecf67c660b797af08da812098ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe429c93b79040940ec672ac60ff8a49522ecf67c660b797af08da812098ee7", kill_on_drop: false }`
[INFO] [stdout] 3fe429c93b79040940ec672ac60ff8a49522ecf67c660b797af08da812098ee7
