[INFO] fetching crate plctag 0.1.0...
[INFO] checking plctag-0.1.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate plctag 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate plctag 0.1.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plctag 0.1.0
[INFO] finished tweaking crates.io crate plctag 0.1.0
[INFO] tweaked toml for crates.io crate plctag 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate plctag 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d16e49dfdddbf345aec0042ad6a0d40a06ab9c95ed24edc8c6e6b9af0e8cac6
[INFO] running `Command { std: "docker" "start" "-a" "0d16e49dfdddbf345aec0042ad6a0d40a06ab9c95ed24edc8c6e6b9af0e8cac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d16e49dfdddbf345aec0042ad6a0d40a06ab9c95ed24edc8c6e6b9af0e8cac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d16e49dfdddbf345aec0042ad6a0d40a06ab9c95ed24edc8c6e6b9af0e8cac6", kill_on_drop: false }`
[INFO] [stdout] 0d16e49dfdddbf345aec0042ad6a0d40a06ab9c95ed24edc8c6e6b9af0e8cac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c995f3442aafbdfa51afcd11decff8aa2c7142a7663197764ace43e7f3465c5
[INFO] running `Command { std: "docker" "start" "-a" "6c995f3442aafbdfa51afcd11decff8aa2c7142a7663197764ace43e7f3465c5", kill_on_drop: false }`
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[INFO] [stderr]     Checking plctag v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Decode`, `Encode`
[INFO] [stdout]  --> benches/bench_sync.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use plctag::{Decode, Encode, RawTag};
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.40s
[INFO] running `Command { std: "docker" "inspect" "6c995f3442aafbdfa51afcd11decff8aa2c7142a7663197764ace43e7f3465c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c995f3442aafbdfa51afcd11decff8aa2c7142a7663197764ace43e7f3465c5", kill_on_drop: false }`
[INFO] [stdout] 6c995f3442aafbdfa51afcd11decff8aa2c7142a7663197764ace43e7f3465c5