[INFO] fetching crate caw_core 0.5.1...
[INFO] checking caw_core-0.5.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate caw_core 0.5.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate caw_core 0.5.1
[INFO] finished tweaking crates.io crate caw_core 0.5.1
[INFO] tweaked toml for crates.io crate caw_core 0.5.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate caw_core 0.5.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate caw_core 0.5.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4912f79de5cd2761aeb423f8769d71eb59855e0520fa5d79d450aac35fc7f670
[INFO] running `Command { std: "docker" "start" "-a" "4912f79de5cd2761aeb423f8769d71eb59855e0520fa5d79d450aac35fc7f670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4912f79de5cd2761aeb423f8769d71eb59855e0520fa5d79d450aac35fc7f670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4912f79de5cd2761aeb423f8769d71eb59855e0520fa5d79d450aac35fc7f670", kill_on_drop: false }`
[INFO] [stdout] 4912f79de5cd2761aeb423f8769d71eb59855e0520fa5d79d450aac35fc7f670
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32c3863d82cbdc7165301093bfd1bf7f6a07f34d9e8c9bfa78f7afc9075c2f50
[INFO] running `Command { std: "docker" "start" "-a" "32c3863d82cbdc7165301093bfd1bf7f6a07f34d9e8c9bfa78f7afc9075c2f50", kill_on_drop: false }`
[INFO] [stderr]     Checking caw_core v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SigConst` is never constructed
[INFO] [stdout]    --> src/sig.rs:363:12
[INFO] [stdout]     |
[INFO] [stdout] 363 | pub struct SigConst<T: Clone>(T);
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SigConst` is never constructed
[INFO] [stdout]    --> src/sig.rs:363:12
[INFO] [stdout]     |
[INFO] [stdout] 363 | pub struct SigConst<T: Clone>(T);
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "32c3863d82cbdc7165301093bfd1bf7f6a07f34d9e8c9bfa78f7afc9075c2f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c3863d82cbdc7165301093bfd1bf7f6a07f34d9e8c9bfa78f7afc9075c2f50", kill_on_drop: false }`
[INFO] [stdout] 32c3863d82cbdc7165301093bfd1bf7f6a07f34d9e8c9bfa78f7afc9075c2f50