Dec 18 06:58:08.909 INFO checking Kayren/wardice against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:58:08.909 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Kayren/wardice:/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 06:58:09.380 INFO [stdout] b13c130c7b4dcf4a14142136f62aeae220b86100b7ed0da51f3cec2e6948b4e1
Dec 18 06:58:09.382 INFO running `"docker" "start" "-a" "b13c130c7b4dcf4a14142136f62aeae220b86100b7ed0da51f3cec2e6948b4e1"`
Dec 18 06:58:11.668 INFO [stderr]     Checking serde v1.0.72
Dec 18 06:58:11.688 INFO [stderr]    Compiling serde_derive v1.0.72
Dec 18 06:58:30.425 INFO [stderr]     Checking serde_json v1.0.26
Dec 18 06:58:32.868 INFO [stderr]     Checking wardice v0.1.0 (/opt/crater/workdir)
Dec 18 06:58:33.652 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 06:58:33.652 INFO [stderr]    --> src/lib.rs:233:5
Dec 18 06:58:33.652 INFO [stderr]     |
Dec 18 06:58:33.653 INFO [stderr] 233 |     rolls.clone().into_iter().map(|r| reroll_dice(&mut rerolls, r)).collect::<()>();
Dec 18 06:58:33.653 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:58:33.653 INFO [stderr]     |
Dec 18 06:58:33.653 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 06:58:33.653 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 06:58:33.653 INFO [stderr] 
Dec 18 06:58:33.700 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 06:58:33.700 INFO [stderr]    --> src/lib.rs:233:5
Dec 18 06:58:33.700 INFO [stderr]     |
Dec 18 06:58:33.700 INFO [stderr] 233 |     rolls.clone().into_iter().map(|r| reroll_dice(&mut rerolls, r)).collect::<()>();
Dec 18 06:58:33.700 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:58:33.700 INFO [stderr]     |
Dec 18 06:58:33.700 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 06:58:33.700 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 06:58:33.701 INFO [stderr] 
Dec 18 06:58:36.424 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.89s
Dec 18 06:58:37.584 INFO running `"docker" "inspect" "b13c130c7b4dcf4a14142136f62aeae220b86100b7ed0da51f3cec2e6948b4e1"`
Dec 18 06:58:37.882 INFO running `"docker" "rm" "-f" "b13c130c7b4dcf4a14142136f62aeae220b86100b7ed0da51f3cec2e6948b4e1"`
Dec 18 06:58:38.207 INFO [stdout] b13c130c7b4dcf4a14142136f62aeae220b86100b7ed0da51f3cec2e6948b4e1