Dec 07 08:13:02.029 INFO testing llrb-0.0.1 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 08:13:02.029 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07 08:13:02.200 INFO [stdout] 1c069fe6c3757fa87984772da6492a6d1636bbaa62151ed7d37209a450ff2a56
Dec 07 08:13:02.205 INFO running `"docker" "start" "-a" "1c069fe6c3757fa87984772da6492a6d1636bbaa62151ed7d37209a450ff2a56"`
Dec 07 08:13:02.676 INFO [stderr] usermod: no changes
Dec 07 08:13:02.703 INFO [stderr]    Compiling llrb v0.0.1 (/source)
Dec 07 08:13:03.173 INFO [stderr] warning: unused variable: `right_is_red`
Dec 07 08:13:03.174 INFO [stderr]    --> src/lib.rs:288:13
Dec 07 08:13:03.174 INFO [stderr]     |
Dec 07 08:13:03.174 INFO [stderr] 288 |         let right_is_red = is_red(&self.left);
Dec 07 08:13:03.174 INFO [stderr]     |             ^^^^^^^^^^^^ help: consider using `_right_is_red` instead
Dec 07 08:13:03.174 INFO [stderr]     |
Dec 07 08:13:03.174 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 07 08:13:03.174 INFO [stderr] 
Dec 07 08:13:03.174 INFO [stderr] warning: unused variable: `val`
Dec 07 08:13:03.175 INFO [stderr]    --> src/lib.rs:289:43
Dec 07 08:13:03.175 INFO [stderr]     |
Dec 07 08:13:03.175 INFO [stderr] 289 |         if let Some((ref mut key, ref mut val)) = self.kv {
Dec 07 08:13:03.175 INFO [stderr]     |                                           ^^^ help: consider using `_val` instead
Dec 07 08:13:03.175 INFO [stderr] 
Dec 07 08:13:03.175 INFO [stderr] warning: unused variable: `other`
Dec 07 08:13:03.175 INFO [stderr]    --> src/lib.rs:335:30
Dec 07 08:13:03.175 INFO [stderr]     |
Dec 07 08:13:03.175 INFO [stderr] 335 |     pub fn append(&mut self, other: &mut Self) {}
Dec 07 08:13:03.175 INFO [stderr]     |                              ^^^^^ help: consider using `_other` instead
Dec 07 08:13:03.176 INFO [stderr] 
Dec 07 08:13:03.187 INFO [stderr] warning: method is never used: `move_red_right`
Dec 07 08:13:03.187 INFO [stderr]   --> src/lib.rs:92:5
Dec 07 08:13:03.187 INFO [stderr]    |
Dec 07 08:13:03.187 INFO [stderr] 92 |     fn move_red_right(&mut self) {}
Dec 07 08:13:03.187 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 08:13:03.187 INFO [stderr]    |
Dec 07 08:13:03.187 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 08:13:03.187 INFO [stderr] 
Dec 07 08:13:03.187 INFO [stderr] warning: method is never used: `move_red_left`
Dec 07 08:13:03.187 INFO [stderr]   --> src/lib.rs:94:5
Dec 07 08:13:03.187 INFO [stderr]    |
Dec 07 08:13:03.187 INFO [stderr] 94 |     fn move_red_left(&mut self) {}
Dec 07 08:13:03.187 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 08:13:03.187 INFO [stderr] 
Dec 07 08:13:03.187 INFO [stderr] warning: method is never used: `min`
Dec 07 08:13:03.188 INFO [stderr]    --> src/lib.rs:303:5
Dec 07 08:13:03.188 INFO [stderr]     |
Dec 07 08:13:03.188 INFO [stderr] 303 |     fn min(&self) -> &LLRB<K, V> {
Dec 07 08:13:03.188 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 08:13:03.188 INFO [stderr] 
Dec 07 08:13:03.214 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Dec 07 08:13:03.216 INFO [stderr] su: No module specific data is present
Dec 07 08:13:03.489 INFO running `"docker" "inspect" "1c069fe6c3757fa87984772da6492a6d1636bbaa62151ed7d37209a450ff2a56"`
Dec 07 08:13:03.580 INFO running `"docker" "rm" "-f" "1c069fe6c3757fa87984772da6492a6d1636bbaa62151ed7d37209a450ff2a56"`
Dec 07 08:13:03.751 INFO [stdout] 1c069fe6c3757fa87984772da6492a6d1636bbaa62151ed7d37209a450ff2a56
Dec 07 08:13:03.757 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07 08:13:04.002 INFO [stdout] f616477e61b7a00db3a159fe06cba23f9cdd9898dd70c33e84d6ab6a03b08be2
Dec 07 08:13:04.002 INFO running `"docker" "start" "-a" "f616477e61b7a00db3a159fe06cba23f9cdd9898dd70c33e84d6ab6a03b08be2"`
Dec 07 08:13:04.474 INFO [stderr] usermod: no changes
Dec 07 08:13:04.504 INFO [stderr]    Compiling llrb v0.0.1 (/source)
Dec 07 08:13:05.120 INFO [stderr] warning: unused variable: `right_is_red`
Dec 07 08:13:05.120 INFO [stderr]    --> src/lib.rs:288:13
Dec 07 08:13:05.120 INFO [stderr]     |
Dec 07 08:13:05.120 INFO [stderr] 288 |         let right_is_red = is_red(&self.left);
Dec 07 08:13:05.120 INFO [stderr]     |             ^^^^^^^^^^^^ help: consider using `_right_is_red` instead
Dec 07 08:13:05.120 INFO [stderr]     |
Dec 07 08:13:05.120 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 07 08:13:05.120 INFO [stderr] 
Dec 07 08:13:05.128 INFO [stderr] warning: unused variable: `val`
Dec 07 08:13:05.128 INFO [stderr]    --> src/lib.rs:289:43
Dec 07 08:13:05.128 INFO [stderr]     |
Dec 07 08:13:05.128 INFO [stderr] 289 |         if let Some((ref mut key, ref mut val)) = self.kv {
Dec 07 08:13:05.128 INFO [stderr]     |                                           ^^^ help: consider using `_val` instead
Dec 07 08:13:05.128 INFO [stderr] 
Dec 07 08:13:05.128 INFO [stderr] warning: unused variable: `other`
Dec 07 08:13:05.128 INFO [stderr]    --> src/lib.rs:335:30
Dec 07 08:13:05.128 INFO [stderr]     |
Dec 07 08:13:05.128 INFO [stderr] 335 |     pub fn append(&mut self, other: &mut Self) {}
Dec 07 08:13:05.128 INFO [stderr]     |                              ^^^^^ help: consider using `_other` instead
Dec 07 08:13:05.128 INFO [stderr] 
Dec 07 08:13:05.134 INFO [stderr] warning: method is never used: `move_red_right`
Dec 07 08:13:05.134 INFO [stderr]   --> src/lib.rs:92:5
Dec 07 08:13:05.134 INFO [stderr]    |
Dec 07 08:13:05.134 INFO [stderr] 92 |     fn move_red_right(&mut self) {}
Dec 07 08:13:05.134 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 08:13:05.134 INFO [stderr]    |
Dec 07 08:13:05.134 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 08:13:05.134 INFO [stderr] 
Dec 07 08:13:05.134 INFO [stderr] warning: method is never used: `move_red_left`
Dec 07 08:13:05.134 INFO [stderr]   --> src/lib.rs:94:5
Dec 07 08:13:05.134 INFO [stderr]    |
Dec 07 08:13:05.134 INFO [stderr] 94 |     fn move_red_left(&mut self) {}
Dec 07 08:13:05.134 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 08:13:05.134 INFO [stderr] 
Dec 07 08:13:05.134 INFO [stderr] warning: method is never used: `min`
Dec 07 08:13:05.134 INFO [stderr]    --> src/lib.rs:303:5
Dec 07 08:13:05.134 INFO [stderr]     |
Dec 07 08:13:05.134 INFO [stderr] 303 |     fn min(&self) -> &LLRB<K, V> {
Dec 07 08:13:05.134 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 08:13:05.134 INFO [stderr] 
Dec 07 08:13:05.364 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 07 08:13:05.364 INFO [stderr] su: No module specific data is present
Dec 07 08:13:05.639 INFO running `"docker" "inspect" "f616477e61b7a00db3a159fe06cba23f9cdd9898dd70c33e84d6ab6a03b08be2"`
Dec 07 08:13:05.755 INFO running `"docker" "rm" "-f" "f616477e61b7a00db3a159fe06cba23f9cdd9898dd70c33e84d6ab6a03b08be2"`
Dec 07 08:13:05.875 INFO [stdout] f616477e61b7a00db3a159fe06cba23f9cdd9898dd70c33e84d6ab6a03b08be2