Dec 18 17:59:16.684 INFO checking c_linked_list-1.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 17:59:16.684 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/c_linked_list/1.1.1:/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 17:59:16.961 INFO [stdout] 449c57e31f529f0fecdc20f49e9721394d0209924fdbdde9f9205b630d404775
Dec 18 17:59:16.962 INFO running `"docker" "start" "-a" "449c57e31f529f0fecdc20f49e9721394d0209924fdbdde9f9205b630d404775"`
Dec 18 17:59:17.854 INFO [stderr]     Checking c_linked_list v1.1.1 (/opt/crater/workdir)
Dec 18 17:59:18.139 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:59:18.139 INFO [stderr]    --> src/lib.rs:138:18
Dec 18 17:59:18.139 INFO [stderr]     |
Dec 18 17:59:18.139 INFO [stderr] 138 |     fn into_iter(mut self) -> CLinkedListMutIterMut<'a, T, N> {
Dec 18 17:59:18.139 INFO [stderr]     |                  ----^^^^
Dec 18 17:59:18.139 INFO [stderr]     |                  |
Dec 18 17:59:18.139 INFO [stderr]     |                  help: remove this `mut`
Dec 18 17:59:18.139 INFO [stderr]     |
Dec 18 17:59:18.139 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 17:59:18.139 INFO [stderr] 
Dec 18 17:59:18.225 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:59:18.225 INFO [stderr]    --> src/lib.rs:138:18
Dec 18 17:59:18.225 INFO [stderr]     |
Dec 18 17:59:18.225 INFO [stderr] 138 |     fn into_iter(mut self) -> CLinkedListMutIterMut<'a, T, N> {
Dec 18 17:59:18.225 INFO [stderr]     |                  ----^^^^
Dec 18 17:59:18.225 INFO [stderr]     |                  |
Dec 18 17:59:18.225 INFO [stderr]     |                  help: remove this `mut`
Dec 18 17:59:18.225 INFO [stderr]     |
Dec 18 17:59:18.225 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 17:59:18.225 INFO [stderr] 
Dec 18 17:59:18.278 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Dec 18 17:59:18.658 INFO running `"docker" "inspect" "449c57e31f529f0fecdc20f49e9721394d0209924fdbdde9f9205b630d404775"`
Dec 18 17:59:18.797 INFO running `"docker" "rm" "-f" "449c57e31f529f0fecdc20f49e9721394d0209924fdbdde9f9205b630d404775"`
Dec 18 17:59:19.182 INFO [stdout] 449c57e31f529f0fecdc20f49e9721394d0209924fdbdde9f9205b630d404775