Nov 27 17:49:17.993 INFO checking varzac/rust_collections against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 17:49:17.994 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 27 17:49:18.193 INFO [stdout] 2310c179722b25ad6728a3d91366136b40600f62e9c3e80165e3e76807a33bea
Nov 27 17:49:18.195 INFO running `"docker" "start" "-a" "2310c179722b25ad6728a3d91366136b40600f62e9c3e80165e3e76807a33bea"`
Nov 27 17:49:18.582 INFO [stderr] usermod: no changes
Nov 27 17:49:18.603 INFO [stderr] warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Nov 27 17:49:18.604 INFO [stderr] please set bin.path in Cargo.toml
Nov 27 17:49:18.605 INFO [stderr]     Checking linked_list v0.0.1 (/source)
Nov 27 17:49:18.796 INFO [stderr] warning: method is never used: `delete_val`
Nov 27 17:49:18.796 INFO [stderr]   --> src/linked_list.rs:14:5
Nov 27 17:49:18.796 INFO [stderr]    |
Nov 27 17:49:18.796 INFO [stderr] 14 |     fn delete_val(&self, val: &T) -> Option<Rc<LinkedList<T>>> {
Nov 27 17:49:18.796 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:18.796 INFO [stderr]    |
Nov 27 17:49:18.796 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 17:49:18.796 INFO [stderr] 
Nov 27 17:49:18.796 INFO [stderr] warning: method is never used: `insert_val`
Nov 27 17:49:18.796 INFO [stderr]   --> src/linked_list.rs:38:5
Nov 27 17:49:18.796 INFO [stderr]    |
Nov 27 17:49:18.796 INFO [stderr] 38 |     fn insert_val(&self, val: T) -> LinkedList<T> {
Nov 27 17:49:18.796 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:18.796 INFO [stderr] 
Nov 27 17:49:18.796 INFO [stderr] warning: method is never used: `length`
Nov 27 17:49:18.796 INFO [stderr]   --> src/linked_list.rs:42:5
Nov 27 17:49:18.796 INFO [stderr]    |
Nov 27 17:49:18.796 INFO [stderr] 42 |     fn length(&self) -> i32 {
Nov 27 17:49:18.796 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:18.796 INFO [stderr] 
Nov 27 17:49:18.796 INFO [stderr] warning: method is never used: `find`
Nov 27 17:49:18.796 INFO [stderr]   --> src/linked_list.rs:66:5
Nov 27 17:49:18.796 INFO [stderr]    |
Nov 27 17:49:18.796 INFO [stderr] 66 |     fn find(&self, val: T) -> Option<i32> {
Nov 27 17:49:18.796 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:18.796 INFO [stderr] 
Nov 27 17:49:18.923 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
Nov 27 17:49:18.926 INFO [stderr] su: No module specific data is present
Nov 27 17:49:19.218 INFO running `"docker" "inspect" "2310c179722b25ad6728a3d91366136b40600f62e9c3e80165e3e76807a33bea"`
Nov 27 17:49:19.318 INFO running `"docker" "rm" "-f" "2310c179722b25ad6728a3d91366136b40600f62e9c3e80165e3e76807a33bea"`
Nov 27 17:49:19.440 INFO [stdout] 2310c179722b25ad6728a3d91366136b40600f62e9c3e80165e3e76807a33bea