Oct 21 20:38:21.387 INFO checking Razakhel/rs-ds against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 20:38:21.388 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-7/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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"`
Oct 21 20:38:21.644 INFO blam! cd0eb95be9dddfa96b0c01561c09919627b46c68ed8d2b6179aa641dcf35d59e
Oct 21 20:38:21.646 INFO running `"docker" "start" "-a" "cd0eb95be9dddfa96b0c01561c09919627b46c68ed8d2b6179aa641dcf35d59e"`
Oct 21 20:38:22.224 INFO kablam! usermod: no changes
Oct 21 20:38:22.280 INFO kablam!     Checking rs-ds v0.1.0 (/source)
Oct 21 20:38:22.700 INFO kablam! warning: struct is never constructed: `IntoIter`
Oct 21 20:38:22.700 INFO kablam!   --> src/linked_list.rs:16:1
Oct 21 20:38:22.700 INFO kablam!    |
Oct 21 20:38:22.700 INFO kablam! 16 | pub struct IntoIter<T>(List<T>);
Oct 21 20:38:22.700 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 20:38:22.700 INFO kablam!    |
Oct 21 20:38:22.700 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 21 20:38:22.700 INFO kablam! 
Oct 21 20:38:22.700 INFO kablam! warning: method is never used: `peek`
Oct 21 20:38:22.700 INFO kablam!   --> src/linked_list.rs:38:3
Oct 21 20:38:22.700 INFO kablam!    |
Oct 21 20:38:22.700 INFO kablam! 38 |   pub fn peek(&self) -> Option<&T> {
Oct 21 20:38:22.700 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 20:38:22.700 INFO kablam! 
Oct 21 20:38:22.700 INFO kablam! warning: method is never used: `peek_mut`
Oct 21 20:38:22.700 INFO kablam!   --> src/linked_list.rs:44:3
Oct 21 20:38:22.700 INFO kablam!    |
Oct 21 20:38:22.700 INFO kablam! 44 |   pub fn peek_mut(&mut self) -> Option<&mut T> {
Oct 21 20:38:22.700 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 20:38:22.700 INFO kablam! 
Oct 21 20:38:22.700 INFO kablam! warning: method is never used: `into_iter`
Oct 21 20:38:22.700 INFO kablam!   --> src/linked_list.rs:50:3
Oct 21 20:38:22.700 INFO kablam!    |
Oct 21 20:38:22.700 INFO kablam! 50 |   pub fn into_iter(self) -> IntoIter<T> {
Oct 21 20:38:22.700 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 20:38:22.700 INFO kablam! 
Oct 21 20:38:22.903 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Oct 21 20:38:22.905 INFO kablam! su: No module specific data is present
Oct 21 20:38:23.207 INFO running `"docker" "rm" "-f" "cd0eb95be9dddfa96b0c01561c09919627b46c68ed8d2b6179aa641dcf35d59e"`
Oct 21 20:38:23.309 INFO blam! cd0eb95be9dddfa96b0c01561c09919627b46c68ed8d2b6179aa641dcf35d59e