Nov 27 17:49:18.458 INFO checking varzac/rust_collections against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 17:49:18.458 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 17:49:18.621 INFO [stdout] 422a093ad1630abeb9397f7e4557b67717013384375ccddf87124597a312b218
Nov 27 17:49:18.625 INFO running `"docker" "start" "-a" "422a093ad1630abeb9397f7e4557b67717013384375ccddf87124597a312b218"`
Nov 27 17:49:19.197 INFO [stderr] usermod: no changes
Nov 27 17:49:19.220 INFO [stderr] warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Nov 27 17:49:19.220 INFO [stderr] please set bin.path in Cargo.toml
Nov 27 17:49:19.220 INFO [stderr]     Checking linked_list v0.0.1 (/source)
Nov 27 17:49:19.380 INFO [stderr] warning: method is never used: `delete_val`
Nov 27 17:49:19.380 INFO [stderr]   --> src/linked_list.rs:14:5
Nov 27 17:49:19.380 INFO [stderr]    |
Nov 27 17:49:19.380 INFO [stderr] 14 |     fn delete_val(&self, val: &T) -> Option<Rc<LinkedList<T>>> {
Nov 27 17:49:19.380 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:19.380 INFO [stderr]    |
Nov 27 17:49:19.380 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 17:49:19.380 INFO [stderr] 
Nov 27 17:49:19.380 INFO [stderr] warning: method is never used: `insert_val`
Nov 27 17:49:19.380 INFO [stderr]   --> src/linked_list.rs:38:5
Nov 27 17:49:19.380 INFO [stderr]    |
Nov 27 17:49:19.380 INFO [stderr] 38 |     fn insert_val(&self, val: T) -> LinkedList<T> {
Nov 27 17:49:19.380 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:19.380 INFO [stderr] 
Nov 27 17:49:19.380 INFO [stderr] warning: method is never used: `length`
Nov 27 17:49:19.380 INFO [stderr]   --> src/linked_list.rs:42:5
Nov 27 17:49:19.380 INFO [stderr]    |
Nov 27 17:49:19.380 INFO [stderr] 42 |     fn length(&self) -> i32 {
Nov 27 17:49:19.380 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:19.380 INFO [stderr] 
Nov 27 17:49:19.380 INFO [stderr] warning: method is never used: `find`
Nov 27 17:49:19.380 INFO [stderr]   --> src/linked_list.rs:66:5
Nov 27 17:49:19.380 INFO [stderr]    |
Nov 27 17:49:19.380 INFO [stderr] 66 |     fn find(&self, val: T) -> Option<i32> {
Nov 27 17:49:19.380 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:49:19.380 INFO [stderr] 
Nov 27 17:49:19.505 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Nov 27 17:49:19.510 INFO [stderr] su: No module specific data is present
Nov 27 17:49:19.803 INFO running `"docker" "inspect" "422a093ad1630abeb9397f7e4557b67717013384375ccddf87124597a312b218"`
Nov 27 17:49:19.888 INFO running `"docker" "rm" "-f" "422a093ad1630abeb9397f7e4557b67717013384375ccddf87124597a312b218"`
Nov 27 17:49:20.041 INFO [stdout] 422a093ad1630abeb9397f7e4557b67717013384375ccddf87124597a312b218