Dec 18 13:09:06.815 INFO checking parking_lot_mpsc-0.1.5 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:09:06.815 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 13:09:06.993 INFO [stdout] 3ef5435352fb2636d98ccafe26c55f3601ce271854611e1a87c281e4b20a4e67
Dec 18 13:09:06.998 INFO running `"docker" "start" "-a" "3ef5435352fb2636d98ccafe26c55f3601ce271854611e1a87c281e4b20a4e67"`
Dec 18 13:09:07.572 INFO [stderr]     Checking parking_lot v0.4.8
Dec 18 13:09:08.088 INFO [stderr]     Checking parking_lot_mpsc v0.1.5 (/opt/crater/workdir)
Dec 18 13:09:10.104 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 18 13:09:10.104 INFO [stderr]    --> src/select.rs:522:13
Dec 18 13:09:10.104 INFO [stderr]     |
Dec 18 13:09:10.104 INFO [stderr] 522 |             tx1.clone();
Dec 18 13:09:10.104 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 18 13:09:10.104 INFO [stderr]     |
Dec 18 13:09:10.104 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 13:09:10.104 INFO [stderr]     = note: cloning is often expensive and is not expected to have side effects
Dec 18 13:09:10.104 INFO [stderr] 
Dec 18 13:09:10.104 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 18 13:09:10.104 INFO [stderr]    --> src/select.rs:544:13
Dec 18 13:09:10.104 INFO [stderr]     |
Dec 18 13:09:10.104 INFO [stderr] 544 |             tx1.clone();
Dec 18 13:09:10.104 INFO [stderr]     |             ^^^^^^^^^^^^
Dec 18 13:09:10.104 INFO [stderr]     |
Dec 18 13:09:10.104 INFO [stderr]     = note: cloning is often expensive and is not expected to have side effects
Dec 18 13:09:10.104 INFO [stderr] 
Dec 18 13:09:10.208 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.65s
Dec 18 13:09:11.239 INFO running `"docker" "inspect" "3ef5435352fb2636d98ccafe26c55f3601ce271854611e1a87c281e4b20a4e67"`
Dec 18 13:09:11.592 INFO running `"docker" "rm" "-f" "3ef5435352fb2636d98ccafe26c55f3601ce271854611e1a87c281e4b20a4e67"`
Dec 18 13:09:11.988 INFO [stdout] 3ef5435352fb2636d98ccafe26c55f3601ce271854611e1a87c281e4b20a4e67