Oct 12 11:24:29.813 INFO checking varzac/rust_collections against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 11:24:29.814 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 12 11:24:30.228 INFO blam! 5e4fec20db8130c856b832a342fec023e574f20cbad008d395f0014bf363dd9b
Oct 12 11:24:30.230 INFO running `"docker" "start" "-a" "5e4fec20db8130c856b832a342fec023e574f20cbad008d395f0014bf363dd9b"`
Oct 12 11:24:31.651 INFO kablam! usermod: no changes
Oct 12 11:24:31.712 INFO kablam! warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Oct 12 11:24:31.712 INFO kablam! please set bin.path in Cargo.toml
Oct 12 11:24:31.721 INFO kablam!     Checking linked_list v0.0.1 (/source)
Oct 12 11:24:32.176 INFO kablam! warning: method is never used: `delete_val`
Oct 12 11:24:32.176 INFO kablam!   --> src/linked_list.rs:14:5
Oct 12 11:24:32.176 INFO kablam!    |
Oct 12 11:24:32.176 INFO kablam! 14 |     fn delete_val(&self, val: &T) -> Option<Rc<LinkedList<T>>> {
Oct 12 11:24:32.176 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 11:24:32.176 INFO kablam!    |
Oct 12 11:24:32.176 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 11:24:32.176 INFO kablam! 
Oct 12 11:24:32.178 INFO kablam! warning: method is never used: `insert_val`
Oct 12 11:24:32.178 INFO kablam!   --> src/linked_list.rs:38:5
Oct 12 11:24:32.178 INFO kablam!    |
Oct 12 11:24:32.178 INFO kablam! 38 |     fn insert_val(&self, val: T) -> LinkedList<T> {
Oct 12 11:24:32.178 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 11:24:32.179 INFO kablam! 
Oct 12 11:24:32.179 INFO kablam! warning: method is never used: `length`
Oct 12 11:24:32.179 INFO kablam!   --> src/linked_list.rs:42:5
Oct 12 11:24:32.179 INFO kablam!    |
Oct 12 11:24:32.179 INFO kablam! 42 |     fn length(&self) -> i32 {
Oct 12 11:24:32.179 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 11:24:32.179 INFO kablam! 
Oct 12 11:24:32.179 INFO kablam! warning: method is never used: `find`
Oct 12 11:24:32.179 INFO kablam!   --> src/linked_list.rs:66:5
Oct 12 11:24:32.179 INFO kablam!    |
Oct 12 11:24:32.179 INFO kablam! 66 |     fn find(&self, val: T) -> Option<i32> {
Oct 12 11:24:32.179 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 11:24:32.179 INFO kablam! 
Oct 12 11:24:32.402 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Oct 12 11:24:32.416 INFO kablam! su: No module specific data is present
Oct 12 11:24:33.047 INFO running `"docker" "rm" "-f" "5e4fec20db8130c856b832a342fec023e574f20cbad008d395f0014bf363dd9b"`
Oct 12 11:24:33.303 INFO blam! 5e4fec20db8130c856b832a342fec023e574f20cbad008d395f0014bf363dd9b