Dec 15 05:44:27.330 INFO testing llrb-0.0.1 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 05:44:27.330 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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"`
Dec 15 05:44:27.567 INFO [stdout] c35f45da80eea03049864af9546376803237dea1d2611915da59cb56a8f44349
Dec 15 05:44:27.569 INFO running `"docker" "start" "-a" "c35f45da80eea03049864af9546376803237dea1d2611915da59cb56a8f44349"`
Dec 15 05:44:27.971 INFO [stderr] usermod: no changes
Dec 15 05:44:27.994 INFO [stderr]    Compiling llrb v0.0.1 (/source)
Dec 15 05:44:28.485 INFO [stderr] warning: unused variable: `right_is_red`
Dec 15 05:44:28.485 INFO [stderr]    --> src/lib.rs:288:13
Dec 15 05:44:28.485 INFO [stderr]     |
Dec 15 05:44:28.485 INFO [stderr] 288 |         let right_is_red = is_red(&self.left);
Dec 15 05:44:28.485 INFO [stderr]     |             ^^^^^^^^^^^^ help: consider using `_right_is_red` instead
Dec 15 05:44:28.485 INFO [stderr]     |
Dec 15 05:44:28.485 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 15 05:44:28.485 INFO [stderr] 
Dec 15 05:44:28.485 INFO [stderr] warning: unused variable: `val`
Dec 15 05:44:28.485 INFO [stderr]    --> src/lib.rs:289:43
Dec 15 05:44:28.485 INFO [stderr]     |
Dec 15 05:44:28.485 INFO [stderr] 289 |         if let Some((ref mut key, ref mut val)) = self.kv {
Dec 15 05:44:28.485 INFO [stderr]     |                                           ^^^ help: consider using `_val` instead
Dec 15 05:44:28.485 INFO [stderr] 
Dec 15 05:44:28.485 INFO [stderr] warning: unused variable: `other`
Dec 15 05:44:28.485 INFO [stderr]    --> src/lib.rs:335:30
Dec 15 05:44:28.485 INFO [stderr]     |
Dec 15 05:44:28.485 INFO [stderr] 335 |     pub fn append(&mut self, other: &mut Self) {}
Dec 15 05:44:28.485 INFO [stderr]     |                              ^^^^^ help: consider using `_other` instead
Dec 15 05:44:28.485 INFO [stderr] 
Dec 15 05:44:28.501 INFO [stderr] warning: method is never used: `move_red_right`
Dec 15 05:44:28.501 INFO [stderr]   --> src/lib.rs:92:5
Dec 15 05:44:28.501 INFO [stderr]    |
Dec 15 05:44:28.501 INFO [stderr] 92 |     fn move_red_right(&mut self) {}
Dec 15 05:44:28.501 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 05:44:28.501 INFO [stderr]    |
Dec 15 05:44:28.501 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 05:44:28.501 INFO [stderr] 
Dec 15 05:44:28.501 INFO [stderr] warning: method is never used: `move_red_left`
Dec 15 05:44:28.501 INFO [stderr]   --> src/lib.rs:94:5
Dec 15 05:44:28.501 INFO [stderr]    |
Dec 15 05:44:28.501 INFO [stderr] 94 |     fn move_red_left(&mut self) {}
Dec 15 05:44:28.501 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 05:44:28.501 INFO [stderr] 
Dec 15 05:44:28.501 INFO [stderr] warning: method is never used: `min`
Dec 15 05:44:28.501 INFO [stderr]    --> src/lib.rs:303:5
Dec 15 05:44:28.501 INFO [stderr]     |
Dec 15 05:44:28.501 INFO [stderr] 303 |     fn min(&self) -> &LLRB<K, V> {
Dec 15 05:44:28.501 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 05:44:28.501 INFO [stderr] 
Dec 15 05:44:28.542 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Dec 15 05:44:28.550 INFO [stderr] su: No module specific data is present
Dec 15 05:44:28.888 INFO running `"docker" "inspect" "c35f45da80eea03049864af9546376803237dea1d2611915da59cb56a8f44349"`
Dec 15 05:44:29.020 INFO running `"docker" "rm" "-f" "c35f45da80eea03049864af9546376803237dea1d2611915da59cb56a8f44349"`
Dec 15 05:44:29.123 INFO [stdout] c35f45da80eea03049864af9546376803237dea1d2611915da59cb56a8f44349
Dec 15 05:44:29.128 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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"`
Dec 15 05:44:29.322 INFO [stdout] 91d83fd9553d3fa8d5b5fcc9606f193fdfc06efa13b6c5606e840611a39d5cff
Dec 15 05:44:29.323 INFO running `"docker" "start" "-a" "91d83fd9553d3fa8d5b5fcc9606f193fdfc06efa13b6c5606e840611a39d5cff"`
Dec 15 05:44:29.823 INFO [stderr] usermod: no changes
Dec 15 05:44:29.846 INFO [stderr]    Compiling llrb v0.0.1 (/source)
Dec 15 05:44:30.490 INFO [stderr] warning: unused variable: `right_is_red`
Dec 15 05:44:30.490 INFO [stderr]    --> src/lib.rs:288:13
Dec 15 05:44:30.491 INFO [stderr]     |
Dec 15 05:44:30.491 INFO [stderr] 288 |         let right_is_red = is_red(&self.left);
Dec 15 05:44:30.491 INFO [stderr]     |             ^^^^^^^^^^^^ help: consider using `_right_is_red` instead
Dec 15 05:44:30.492 INFO [stderr]     |
Dec 15 05:44:30.492 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 15 05:44:30.492 INFO [stderr] 
Dec 15 05:44:30.492 INFO [stderr] warning: unused variable: `val`
Dec 15 05:44:30.493 INFO [stderr]    --> src/lib.rs:289:43
Dec 15 05:44:30.493 INFO [stderr]     |
Dec 15 05:44:30.493 INFO [stderr] 289 |         if let Some((ref mut key, ref mut val)) = self.kv {
Dec 15 05:44:30.493 INFO [stderr]     |                                           ^^^ help: consider using `_val` instead
Dec 15 05:44:30.494 INFO [stderr] 
Dec 15 05:44:30.494 INFO [stderr] warning: unused variable: `other`
Dec 15 05:44:30.494 INFO [stderr]    --> src/lib.rs:335:30
Dec 15 05:44:30.494 INFO [stderr]     |
Dec 15 05:44:30.494 INFO [stderr] 335 |     pub fn append(&mut self, other: &mut Self) {}
Dec 15 05:44:30.494 INFO [stderr]     |                              ^^^^^ help: consider using `_other` instead
Dec 15 05:44:30.494 INFO [stderr] 
Dec 15 05:44:30.506 INFO [stderr] warning: method is never used: `move_red_right`
Dec 15 05:44:30.506 INFO [stderr]   --> src/lib.rs:92:5
Dec 15 05:44:30.506 INFO [stderr]    |
Dec 15 05:44:30.506 INFO [stderr] 92 |     fn move_red_right(&mut self) {}
Dec 15 05:44:30.506 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 05:44:30.506 INFO [stderr]    |
Dec 15 05:44:30.506 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 05:44:30.507 INFO [stderr] 
Dec 15 05:44:30.507 INFO [stderr] warning: method is never used: `move_red_left`
Dec 15 05:44:30.507 INFO [stderr]   --> src/lib.rs:94:5
Dec 15 05:44:30.507 INFO [stderr]    |
Dec 15 05:44:30.507 INFO [stderr] 94 |     fn move_red_left(&mut self) {}
Dec 15 05:44:30.507 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 05:44:30.507 INFO [stderr] 
Dec 15 05:44:30.507 INFO [stderr] warning: method is never used: `min`
Dec 15 05:44:30.507 INFO [stderr]    --> src/lib.rs:303:5
Dec 15 05:44:30.507 INFO [stderr]     |
Dec 15 05:44:30.507 INFO [stderr] 303 |     fn min(&self) -> &LLRB<K, V> {
Dec 15 05:44:30.507 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 05:44:30.507 INFO [stderr] 
Dec 15 05:44:30.740 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 15 05:44:30.742 INFO [stderr] su: No module specific data is present
Dec 15 05:44:31.073 INFO running `"docker" "inspect" "91d83fd9553d3fa8d5b5fcc9606f193fdfc06efa13b6c5606e840611a39d5cff"`
Dec 15 05:44:31.142 INFO running `"docker" "rm" "-f" "91d83fd9553d3fa8d5b5fcc9606f193fdfc06efa13b6c5606e840611a39d5cff"`
Dec 15 05:44:31.287 INFO [stdout] 91d83fd9553d3fa8d5b5fcc9606f193fdfc06efa13b6c5606e840611a39d5cff