Dec 18 12:50:14.144 INFO checking process_lock-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 12:50:14.144 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/process_lock/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 12:50:14.550 INFO [stdout] f3559a74179b20d98f3730ca129071f1cedf4cc8d0bcbcca67c218ce3568d4cd
Dec 18 12:50:14.558 INFO running `"docker" "start" "-a" "f3559a74179b20d98f3730ca129071f1cedf4cc8d0bcbcca67c218ce3568d4cd"`
Dec 18 12:50:16.472 INFO [stderr]    Compiling winapi v0.3.6
Dec 18 12:50:18.490 INFO [stderr]     Checking process_lock v0.1.0 (/opt/crater/workdir)
Dec 18 12:50:19.288 INFO [stderr] warning: unused import: `Duration`
Dec 18 12:50:19.289 INFO [stderr]  --> examples/lock.rs:2:17
Dec 18 12:50:19.289 INFO [stderr]   |
Dec 18 12:50:19.289 INFO [stderr] 2 | use std::time::{Duration, Instant};
Dec 18 12:50:19.289 INFO [stderr]   |                 ^^^^^^^^
Dec 18 12:50:19.289 INFO [stderr]   |
Dec 18 12:50:19.289 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 12:50:19.289 INFO [stderr] 
Dec 18 12:50:19.347 INFO [stderr] warning: unused import: `Duration`
Dec 18 12:50:19.347 INFO [stderr]  --> examples/lock1.rs:3:17
Dec 18 12:50:19.347 INFO [stderr]   |
Dec 18 12:50:19.347 INFO [stderr] 3 | use std::time::{Duration, Instant};
Dec 18 12:50:19.347 INFO [stderr]   |                 ^^^^^^^^
Dec 18 12:50:19.347 INFO [stderr]   |
Dec 18 12:50:19.347 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 12:50:19.347 INFO [stderr] 
Dec 18 12:50:19.396 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:50:19.396 INFO [stderr]  --> examples/lock1.rs:9:9
Dec 18 12:50:19.396 INFO [stderr]   |
Dec 18 12:50:19.396 INFO [stderr] 9 |     let mut lock = ProcessLock::new(String::from(".xxx1"), None).unwrap();
Dec 18 12:50:19.396 INFO [stderr]   |         ----^^^^
Dec 18 12:50:19.396 INFO [stderr]   |         |
Dec 18 12:50:19.396 INFO [stderr]   |         help: remove this `mut`
Dec 18 12:50:19.396 INFO [stderr]   |
Dec 18 12:50:19.396 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 12:50:19.396 INFO [stderr] 
Dec 18 12:50:19.416 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.99s
Dec 18 12:50:19.833 INFO running `"docker" "inspect" "f3559a74179b20d98f3730ca129071f1cedf4cc8d0bcbcca67c218ce3568d4cd"`
Dec 18 12:50:19.968 INFO running `"docker" "rm" "-f" "f3559a74179b20d98f3730ca129071f1cedf4cc8d0bcbcca67c218ce3568d4cd"`
Dec 18 12:50:20.126 INFO [stdout] f3559a74179b20d98f3730ca129071f1cedf4cc8d0bcbcca67c218ce3568d4cd