Oct 31 18:48:09.488 INFO checking varzac/rust_collections against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 18:48:09.488 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-5/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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"`
Oct 31 18:48:09.680 INFO blam! 8995469988b4f4004657c72cb4355043a88437b1bc2b0a3416d1a32d6e6caa32
Oct 31 18:48:09.684 INFO running `"docker" "start" "-a" "8995469988b4f4004657c72cb4355043a88437b1bc2b0a3416d1a32d6e6caa32"`
Oct 31 18:48:10.116 INFO kablam! usermod: no changes
Oct 31 18:48:10.148 INFO kablam! warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Oct 31 18:48:10.148 INFO kablam! please set bin.path in Cargo.toml
Oct 31 18:48:10.152 INFO kablam!     Checking linked_list v0.0.1 (/source)
Oct 31 18:48:10.339 INFO kablam! warning: method is never used: `delete_val`
Oct 31 18:48:10.339 INFO kablam!   --> src/linked_list.rs:14:5
Oct 31 18:48:10.339 INFO kablam!    |
Oct 31 18:48:10.339 INFO kablam! 14 |     fn delete_val(&self, val: &T) -> Option<Rc<LinkedList<T>>> {
Oct 31 18:48:10.339 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:48:10.339 INFO kablam!    |
Oct 31 18:48:10.339 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 31 18:48:10.339 INFO kablam! 
Oct 31 18:48:10.339 INFO kablam! warning: method is never used: `insert_val`
Oct 31 18:48:10.339 INFO kablam!   --> src/linked_list.rs:38:5
Oct 31 18:48:10.339 INFO kablam!    |
Oct 31 18:48:10.339 INFO kablam! 38 |     fn insert_val(&self, val: T) -> LinkedList<T> {
Oct 31 18:48:10.339 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:48:10.339 INFO kablam! 
Oct 31 18:48:10.339 INFO kablam! warning: method is never used: `length`
Oct 31 18:48:10.340 INFO kablam!   --> src/linked_list.rs:42:5
Oct 31 18:48:10.340 INFO kablam!    |
Oct 31 18:48:10.340 INFO kablam! 42 |     fn length(&self) -> i32 {
Oct 31 18:48:10.340 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:48:10.340 INFO kablam! 
Oct 31 18:48:10.340 INFO kablam! warning: method is never used: `find`
Oct 31 18:48:10.340 INFO kablam!   --> src/linked_list.rs:66:5
Oct 31 18:48:10.340 INFO kablam!    |
Oct 31 18:48:10.340 INFO kablam! 66 |     fn find(&self, val: T) -> Option<i32> {
Oct 31 18:48:10.340 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:48:10.340 INFO kablam! 
Oct 31 18:48:10.434 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Oct 31 18:48:10.440 INFO kablam! su: No module specific data is present
Oct 31 18:48:10.665 INFO running `"docker" "rm" "-f" "8995469988b4f4004657c72cb4355043a88437b1bc2b0a3416d1a32d6e6caa32"`
Oct 31 18:48:10.733 INFO blam! 8995469988b4f4004657c72cb4355043a88437b1bc2b0a3416d1a32d6e6caa32