Nov 30 08:55:40.234 INFO checking Razakhel/rs-ds against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 08:55:40.234 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 08:55:40.666 INFO [stdout] 1e577fe8740ade4a95332eed44dedecc169b2bb06a1a3706a59bf58a4e9f1705
Nov 30 08:55:40.676 INFO running `"docker" "start" "-a" "1e577fe8740ade4a95332eed44dedecc169b2bb06a1a3706a59bf58a4e9f1705"`
Nov 30 08:55:41.868 INFO [stderr] usermod: no changes
Nov 30 08:55:41.913 INFO [stderr]     Checking rs-ds v0.1.0 (/source)
Nov 30 08:55:42.681 INFO [stderr] warning: struct is never constructed: `IntoIter`
Nov 30 08:55:42.681 INFO [stderr]   --> src/linked_list.rs:16:1
Nov 30 08:55:42.681 INFO [stderr]    |
Nov 30 08:55:42.681 INFO [stderr] 16 | pub struct IntoIter<T>(List<T>);
Nov 30 08:55:42.681 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:42.681 INFO [stderr]    |
Nov 30 08:55:42.681 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 08:55:42.681 INFO [stderr] 
Nov 30 08:55:42.681 INFO [stderr] warning: method is never used: `peek`
Nov 30 08:55:42.681 INFO [stderr]   --> src/linked_list.rs:38:3
Nov 30 08:55:42.681 INFO [stderr]    |
Nov 30 08:55:42.681 INFO [stderr] 38 |   pub fn peek(&self) -> Option<&T> {
Nov 30 08:55:42.681 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:42.681 INFO [stderr] 
Nov 30 08:55:42.681 INFO [stderr] warning: method is never used: `peek_mut`
Nov 30 08:55:42.681 INFO [stderr]   --> src/linked_list.rs:44:3
Nov 30 08:55:42.681 INFO [stderr]    |
Nov 30 08:55:42.681 INFO [stderr] 44 |   pub fn peek_mut(&mut self) -> Option<&mut T> {
Nov 30 08:55:42.681 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:42.681 INFO [stderr] 
Nov 30 08:55:42.681 INFO [stderr] warning: method is never used: `into_iter`
Nov 30 08:55:42.681 INFO [stderr]   --> src/linked_list.rs:50:3
Nov 30 08:55:42.681 INFO [stderr]    |
Nov 30 08:55:42.681 INFO [stderr] 50 |   pub fn into_iter(self) -> IntoIter<T> {
Nov 30 08:55:42.682 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:42.682 INFO [stderr] 
Nov 30 08:55:42.822 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Nov 30 08:55:42.823 INFO [stderr] su: No module specific data is present
Nov 30 08:55:43.542 INFO running `"docker" "inspect" "1e577fe8740ade4a95332eed44dedecc169b2bb06a1a3706a59bf58a4e9f1705"`
Nov 30 08:55:43.914 INFO running `"docker" "rm" "-f" "1e577fe8740ade4a95332eed44dedecc169b2bb06a1a3706a59bf58a4e9f1705"`
Nov 30 08:55:44.264 INFO [stdout] 1e577fe8740ade4a95332eed44dedecc169b2bb06a1a3706a59bf58a4e9f1705