Nov 30 08:55:42.624 INFO checking Razakhel/rs-ds against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 08:55:42.624 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 08:55:43.090 INFO [stdout] c680f9a8ae27934e246732a42738937e815140a581cf51c561f7cea02b63f14d
Nov 30 08:55:43.092 INFO running `"docker" "start" "-a" "c680f9a8ae27934e246732a42738937e815140a581cf51c561f7cea02b63f14d"`
Nov 30 08:55:44.608 INFO [stderr] usermod: no changes
Nov 30 08:55:44.664 INFO [stderr]     Checking rs-ds v0.1.0 (/source)
Nov 30 08:55:45.275 INFO [stderr] warning: struct is never constructed: `IntoIter`
Nov 30 08:55:45.275 INFO [stderr]   --> src/linked_list.rs:16:1
Nov 30 08:55:45.275 INFO [stderr]    |
Nov 30 08:55:45.275 INFO [stderr] 16 | pub struct IntoIter<T>(List<T>);
Nov 30 08:55:45.275 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:45.275 INFO [stderr]    |
Nov 30 08:55:45.275 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 08:55:45.275 INFO [stderr] 
Nov 30 08:55:45.275 INFO [stderr] warning: method is never used: `peek`
Nov 30 08:55:45.275 INFO [stderr]   --> src/linked_list.rs:38:3
Nov 30 08:55:45.275 INFO [stderr]    |
Nov 30 08:55:45.275 INFO [stderr] 38 |   pub fn peek(&self) -> Option<&T> {
Nov 30 08:55:45.275 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:45.275 INFO [stderr] 
Nov 30 08:55:45.275 INFO [stderr] warning: method is never used: `peek_mut`
Nov 30 08:55:45.275 INFO [stderr]   --> src/linked_list.rs:44:3
Nov 30 08:55:45.275 INFO [stderr]    |
Nov 30 08:55:45.275 INFO [stderr] 44 |   pub fn peek_mut(&mut self) -> Option<&mut T> {
Nov 30 08:55:45.275 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:45.275 INFO [stderr] 
Nov 30 08:55:45.275 INFO [stderr] warning: method is never used: `into_iter`
Nov 30 08:55:45.275 INFO [stderr]   --> src/linked_list.rs:50:3
Nov 30 08:55:45.275 INFO [stderr]    |
Nov 30 08:55:45.275 INFO [stderr] 50 |   pub fn into_iter(self) -> IntoIter<T> {
Nov 30 08:55:45.275 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:55:45.275 INFO [stderr] 
Nov 30 08:55:45.525 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Nov 30 08:55:45.527 INFO [stderr] su: No module specific data is present
Nov 30 08:55:46.436 INFO running `"docker" "inspect" "c680f9a8ae27934e246732a42738937e815140a581cf51c561f7cea02b63f14d"`
Nov 30 08:55:46.803 INFO running `"docker" "rm" "-f" "c680f9a8ae27934e246732a42738937e815140a581cf51c561f7cea02b63f14d"`
Nov 30 08:55:47.088 INFO [stdout] c680f9a8ae27934e246732a42738937e815140a581cf51c561f7cea02b63f14d