Dec 18 05:44:19.487 INFO checking Razakhel/rs-ds against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:44:19.487 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/gh/Razakhel/rs-ds:/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 05:44:20.089 INFO [stdout] 605b42fa46e3b370afe75031394ce370f7766f1671e7f5764478c5a961700489
Dec 18 05:44:20.091 INFO running `"docker" "start" "-a" "605b42fa46e3b370afe75031394ce370f7766f1671e7f5764478c5a961700489"`
Dec 18 05:44:22.304 INFO [stderr]     Checking rs-ds v0.1.0 (/opt/crater/workdir)
Dec 18 05:44:22.904 INFO [stderr] warning: struct is never constructed: `IntoIter`
Dec 18 05:44:22.904 INFO [stderr]   --> src/linked_list.rs:16:1
Dec 18 05:44:22.904 INFO [stderr]    |
Dec 18 05:44:22.904 INFO [stderr] 16 | pub struct IntoIter<T>(List<T>);
Dec 18 05:44:22.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:22.904 INFO [stderr]    |
Dec 18 05:44:22.904 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:44:22.904 INFO [stderr] 
Dec 18 05:44:22.904 INFO [stderr] warning: method is never used: `peek`
Dec 18 05:44:22.904 INFO [stderr]   --> src/linked_list.rs:38:3
Dec 18 05:44:22.904 INFO [stderr]    |
Dec 18 05:44:22.904 INFO [stderr] 38 |   pub fn peek(&self) -> Option<&T> {
Dec 18 05:44:22.904 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:22.904 INFO [stderr] 
Dec 18 05:44:22.904 INFO [stderr] warning: method is never used: `peek_mut`
Dec 18 05:44:22.904 INFO [stderr]   --> src/linked_list.rs:44:3
Dec 18 05:44:22.904 INFO [stderr]    |
Dec 18 05:44:22.904 INFO [stderr] 44 |   pub fn peek_mut(&mut self) -> Option<&mut T> {
Dec 18 05:44:22.904 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:22.904 INFO [stderr] 
Dec 18 05:44:22.905 INFO [stderr] warning: method is never used: `into_iter`
Dec 18 05:44:22.905 INFO [stderr]   --> src/linked_list.rs:50:3
Dec 18 05:44:22.905 INFO [stderr]    |
Dec 18 05:44:22.905 INFO [stderr] 50 |   pub fn into_iter(self) -> IntoIter<T> {
Dec 18 05:44:22.905 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:44:22.908 INFO [stderr] 
Dec 18 05:44:23.024 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 18 05:44:24.472 INFO running `"docker" "inspect" "605b42fa46e3b370afe75031394ce370f7766f1671e7f5764478c5a961700489"`
Dec 18 05:44:24.758 INFO running `"docker" "rm" "-f" "605b42fa46e3b370afe75031394ce370f7766f1671e7f5764478c5a961700489"`
Dec 18 05:44:25.088 INFO [stdout] 605b42fa46e3b370afe75031394ce370f7766f1671e7f5764478c5a961700489