Nov 01 10:25:46.374 INFO checking Razakhel/rs-ds against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 10:25:46.375 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 10:25:46.726 INFO blam! 64a426566e4b0f0fdeab3a510e1abbdee4a890633f355b8da9833062b1cb479c
Nov 01 10:25:46.727 INFO running `"docker" "start" "-a" "64a426566e4b0f0fdeab3a510e1abbdee4a890633f355b8da9833062b1cb479c"`
Nov 01 10:25:48.028 INFO kablam! usermod: no changes
Nov 01 10:25:48.072 INFO kablam!     Checking rs-ds v0.1.0 (/source)
Nov 01 10:25:48.764 INFO kablam! warning: struct is never constructed: `IntoIter`
Nov 01 10:25:48.765 INFO kablam!   --> src/linked_list.rs:16:1
Nov 01 10:25:48.765 INFO kablam!    |
Nov 01 10:25:48.765 INFO kablam! 16 | pub struct IntoIter<T>(List<T>);
Nov 01 10:25:48.765 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:25:48.765 INFO kablam!    |
Nov 01 10:25:48.765 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 10:25:48.765 INFO kablam! 
Nov 01 10:25:48.765 INFO kablam! warning: method is never used: `peek`
Nov 01 10:25:48.765 INFO kablam!   --> src/linked_list.rs:38:3
Nov 01 10:25:48.765 INFO kablam!    |
Nov 01 10:25:48.765 INFO kablam! 38 |   pub fn peek(&self) -> Option<&T> {
Nov 01 10:25:48.765 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:25:48.765 INFO kablam! 
Nov 01 10:25:48.765 INFO kablam! warning: method is never used: `peek_mut`
Nov 01 10:25:48.765 INFO kablam!   --> src/linked_list.rs:44:3
Nov 01 10:25:48.765 INFO kablam!    |
Nov 01 10:25:48.765 INFO kablam! 44 |   pub fn peek_mut(&mut self) -> Option<&mut T> {
Nov 01 10:25:48.765 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:25:48.765 INFO kablam! 
Nov 01 10:25:48.765 INFO kablam! warning: method is never used: `into_iter`
Nov 01 10:25:48.766 INFO kablam!   --> src/linked_list.rs:50:3
Nov 01 10:25:48.766 INFO kablam!    |
Nov 01 10:25:48.766 INFO kablam! 50 |   pub fn into_iter(self) -> IntoIter<T> {
Nov 01 10:25:48.766 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:25:48.766 INFO kablam! 
Nov 01 10:25:48.945 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Nov 01 10:25:48.949 INFO kablam! su: No module specific data is present
Nov 01 10:25:50.068 INFO running `"docker" "rm" "-f" "64a426566e4b0f0fdeab3a510e1abbdee4a890633f355b8da9833062b1cb479c"`
Nov 01 10:25:50.344 INFO blam! 64a426566e4b0f0fdeab3a510e1abbdee4a890633f355b8da9833062b1cb479c