Dec 18 13:09:06.579 INFO checking parking_lot_mpsc-0.1.5 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:09:06.579 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/parking_lot_mpsc/0.1.5:/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 13:09:06.779 INFO [stdout] 3d371975d65a3904e0b67504374f9e82a2ba86f259a74025c18d26e6c5461cfe
Dec 18 13:09:06.782 INFO running `"docker" "start" "-a" "3d371975d65a3904e0b67504374f9e82a2ba86f259a74025c18d26e6c5461cfe"`
Dec 18 13:09:07.389 INFO [stderr]     Checking parking_lot v0.4.8
Dec 18 13:09:07.991 INFO [stderr]     Checking parking_lot_mpsc v0.1.5 (/opt/crater/workdir)
Dec 18 13:09:10.084 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 18 13:09:10.084 INFO [stderr]    --> src/select.rs:522:13
Dec 18 13:09:10.084 INFO [stderr]     |
Dec 18 13:09:10.084 INFO [stderr] 522 |             tx1.clone();
Dec 18 13:09:10.084 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 18 13:09:10.084 INFO [stderr]     |
Dec 18 13:09:10.084 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 13:09:10.084 INFO [stderr]     = note: cloning is often expensive and is not expected to have side effects
Dec 18 13:09:10.084 INFO [stderr] 
Dec 18 13:09:10.084 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 18 13:09:10.084 INFO [stderr]    --> src/select.rs:544:13
Dec 18 13:09:10.084 INFO [stderr]     |
Dec 18 13:09:10.084 INFO [stderr] 544 |             tx1.clone();
Dec 18 13:09:10.084 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 18 13:09:10.084 INFO [stderr]     |
Dec 18 13:09:10.084 INFO [stderr]     = note: cloning is often expensive and is not expected to have side effects
Dec 18 13:09:10.084 INFO [stderr] 
Dec 18 13:09:10.180 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
Dec 18 13:09:11.051 INFO running `"docker" "inspect" "3d371975d65a3904e0b67504374f9e82a2ba86f259a74025c18d26e6c5461cfe"`
Dec 18 13:09:11.364 INFO running `"docker" "rm" "-f" "3d371975d65a3904e0b67504374f9e82a2ba86f259a74025c18d26e6c5461cfe"`
Dec 18 13:09:11.654 INFO [stdout] 3d371975d65a3904e0b67504374f9e82a2ba86f259a74025c18d26e6c5461cfe