Nov 02 04:16:05.962 INFO checking varzac/rust_collections against master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862 for pr-55517
Nov 02 04:16:05.962 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-3/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55517/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/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 +f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862-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 02 04:16:06.417 INFO blam! 5747e1242d022a58a295380cef70b59543bd50c8f91fbcc8064dcfad098f39e4
Nov 02 04:16:06.418 INFO running `"docker" "start" "-a" "5747e1242d022a58a295380cef70b59543bd50c8f91fbcc8064dcfad098f39e4"`
Nov 02 04:16:07.177 INFO kablam! usermod: no changes
Nov 02 04:16:07.211 INFO kablam! warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Nov 02 04:16:07.211 INFO kablam! please set bin.path in Cargo.toml
Nov 02 04:16:07.220 INFO kablam!     Checking linked_list v0.0.1 (/source)
Nov 02 04:16:07.540 INFO kablam! warning: method is never used: `delete_val`
Nov 02 04:16:07.540 INFO kablam!   --> src/linked_list.rs:14:5
Nov 02 04:16:07.540 INFO kablam!    |
Nov 02 04:16:07.540 INFO kablam! 14 |     fn delete_val(&self, val: &T) -> Option<Rc<LinkedList<T>>> {
Nov 02 04:16:07.540 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 04:16:07.540 INFO kablam!    |
Nov 02 04:16:07.540 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 02 04:16:07.540 INFO kablam! 
Nov 02 04:16:07.540 INFO kablam! warning: method is never used: `insert_val`
Nov 02 04:16:07.540 INFO kablam!   --> src/linked_list.rs:38:5
Nov 02 04:16:07.540 INFO kablam!    |
Nov 02 04:16:07.540 INFO kablam! 38 |     fn insert_val(&self, val: T) -> LinkedList<T> {
Nov 02 04:16:07.540 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 04:16:07.540 INFO kablam! 
Nov 02 04:16:07.540 INFO kablam! warning: method is never used: `length`
Nov 02 04:16:07.540 INFO kablam!   --> src/linked_list.rs:42:5
Nov 02 04:16:07.540 INFO kablam!    |
Nov 02 04:16:07.540 INFO kablam! 42 |     fn length(&self) -> i32 {
Nov 02 04:16:07.540 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 04:16:07.540 INFO kablam! 
Nov 02 04:16:07.540 INFO kablam! warning: method is never used: `find`
Nov 02 04:16:07.540 INFO kablam!   --> src/linked_list.rs:66:5
Nov 02 04:16:07.540 INFO kablam!    |
Nov 02 04:16:07.540 INFO kablam! 66 |     fn find(&self, val: T) -> Option<i32> {
Nov 02 04:16:07.540 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 04:16:07.540 INFO kablam! 
Nov 02 04:16:07.629 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Nov 02 04:16:07.633 INFO kablam! su: No module specific data is present
Nov 02 04:16:08.252 INFO running `"docker" "rm" "-f" "5747e1242d022a58a295380cef70b59543bd50c8f91fbcc8064dcfad098f39e4"`
Nov 02 04:16:08.544 INFO blam! 5747e1242d022a58a295380cef70b59543bd50c8f91fbcc8064dcfad098f39e4