Dec 13 01:51:53.045 INFO testing sts10/advent-of-code-2018 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 01:51:53.045 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 13 01:51:53.496 INFO [stdout] 91637d401460068d6428d41ce2e25c247efc888d1b2e10c067cbe42c0885d2ad
Dec 13 01:51:53.505 INFO running `"docker" "start" "-a" "91637d401460068d6428d41ce2e25c247efc888d1b2e10c067cbe42c0885d2ad"`
Dec 13 01:51:54.135 INFO [stderr] usermod: no changes
Dec 13 01:51:54.189 INFO [stderr]    Compiling advent-of-code-2018-reorganized v0.1.0 (/source)
Dec 13 01:51:54.558 INFO [stderr] warning: variable `the_char_to_remove_that_resulted_in_shortest_polymer_result` is assigned to, but never used
Dec 13 01:51:54.558 INFO [stderr]   --> src/bin/my_slow_day05.rs:19:13
Dec 13 01:51:54.558 INFO [stderr]    |
Dec 13 01:51:54.558 INFO [stderr] 19 |     let mut the_char_to_remove_that_resulted_in_shortest_polymer_result: char;
Dec 13 01:51:54.558 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 01:51:54.558 INFO [stderr]    |
Dec 13 01:51:54.558 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 01:51:54.558 INFO [stderr]    = note: consider using `_the_char_to_remove_that_resulted_in_shortest_polymer_result` instead
Dec 13 01:51:54.558 INFO [stderr] 
Dec 13 01:51:54.558 INFO [stderr] warning: value assigned to `the_char_to_remove_that_resulted_in_shortest_polymer_result` is never read
Dec 13 01:51:54.558 INFO [stderr]   --> src/bin/my_slow_day05.rs:45:13
Dec 13 01:51:54.558 INFO [stderr]    |
Dec 13 01:51:54.558 INFO [stderr] 45 |             the_char_to_remove_that_resulted_in_shortest_polymer_result = *char_to_remove;
Dec 13 01:51:54.558 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 01:51:54.558 INFO [stderr]    |
Dec 13 01:51:54.558 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 01:51:54.558 INFO [stderr] 
Dec 13 01:51:54.558 INFO [stderr] warning: unused variable: `indexes_to_remove`
Dec 13 01:51:54.558 INFO [stderr]   --> src/bin/my_slow_day05.rs:60:17
Dec 13 01:51:54.558 INFO [stderr]    |
Dec 13 01:51:54.558 INFO [stderr] 60 |         let mut indexes_to_remove: Vec<usize> = vec![];
Dec 13 01:51:54.558 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^ help: consider using `_indexes_to_remove` instead
Dec 13 01:51:54.558 INFO [stderr] 
Dec 13 01:51:54.604 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:51:54.604 INFO [stderr]   --> src/bin/my_slow_day05.rs:60:13
Dec 13 01:51:54.604 INFO [stderr]    |
Dec 13 01:51:54.604 INFO [stderr] 60 |         let mut indexes_to_remove: Vec<usize> = vec![];
Dec 13 01:51:54.604 INFO [stderr]    |             ----^^^^^^^^^^^^^^^^^
Dec 13 01:51:54.604 INFO [stderr]    |             |
Dec 13 01:51:54.604 INFO [stderr]    |             help: remove this `mut`
Dec 13 01:51:54.604 INFO [stderr]    |
Dec 13 01:51:54.604 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 01:51:54.604 INFO [stderr] 
Dec 13 01:51:54.639 INFO [stderr] warning: unused variable: `new_grid`
Dec 13 01:51:54.639 INFO [stderr]   --> src/bin/day06.rs:32:21
Dec 13 01:51:54.639 INFO [stderr]    |
Dec 13 01:51:54.639 INFO [stderr] 32 |                 let new_grid = spread(x, y, grid);
Dec 13 01:51:54.639 INFO [stderr]    |                     ^^^^^^^^ help: consider using `_new_grid` instead
Dec 13 01:51:54.647 INFO [stderr]    |
Dec 13 01:51:54.647 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 01:51:54.647 INFO [stderr] 
Dec 13 01:51:54.647 INFO [stderr] warning: value assigned to `square` is never read
Dec 13 01:51:54.647 INFO [stderr]   --> src/bin/day06.rs:51:20
Dec 13 01:51:54.647 INFO [stderr]    |
Dec 13 01:51:54.647 INFO [stderr] 51 |             "." => square = sign,
Dec 13 01:51:54.647 INFO [stderr]    |                    ^^^^^^
Dec 13 01:51:54.647 INFO [stderr]    |
Dec 13 01:51:54.647 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 01:51:54.647 INFO [stderr] 
Dec 13 01:51:54.655 INFO [stderr] error[E0384]: cannot assign twice to immutable variable `square`
Dec 13 01:51:54.655 INFO [stderr]   --> src/bin/day06.rs:51:20
Dec 13 01:51:54.655 INFO [stderr]    |
Dec 13 01:51:54.655 INFO [stderr] 49 |     for square in nine_squares {
Dec 13 01:51:54.655 INFO [stderr]    |         ------ first assignment to `square`
Dec 13 01:51:54.655 INFO [stderr] 50 |         match square {
Dec 13 01:51:54.655 INFO [stderr] 51 |             "." => square = sign,
Dec 13 01:51:54.655 INFO [stderr]    |                    ^^^^^^^^^^^^^ cannot assign twice to immutable variable
Dec 13 01:51:54.659 INFO [stderr] 
Dec 13 01:51:54.676 INFO [stderr] error: aborting due to previous error
Dec 13 01:51:54.676 INFO [stderr] 
Dec 13 01:51:54.676 INFO [stderr] For more information about this error, try `rustc --explain E0384`.
Dec 13 01:51:54.689 INFO [stderr] error: Could not compile `advent-of-code-2018-reorganized`.
Dec 13 01:51:54.689 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 13 01:51:54.871 INFO [stderr] warning: unused variable: `guards`
Dec 13 01:51:54.871 INFO [stderr]   --> src/bin/day04_bad_attempt.rs:39:13
Dec 13 01:51:54.871 INFO [stderr]    |
Dec 13 01:51:54.871 INFO [stderr] 39 |     let mut guards: HashMap<usize, Guard> = HashMap::new();
Dec 13 01:51:54.871 INFO [stderr]    |             ^^^^^^ help: consider using `_guards` instead
Dec 13 01:51:54.871 INFO [stderr]    |
Dec 13 01:51:54.871 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 01:51:54.871 INFO [stderr] 
Dec 13 01:51:54.883 INFO [stderr] warning: variable does not need to be mutable
Dec 13 01:51:54.883 INFO [stderr]   --> src/bin/day04_bad_attempt.rs:39:9
Dec 13 01:51:54.883 INFO [stderr]    |
Dec 13 01:51:54.883 INFO [stderr] 39 |     let mut guards: HashMap<usize, Guard> = HashMap::new();
Dec 13 01:51:54.883 INFO [stderr]    |         ----^^^^^^
Dec 13 01:51:54.883 INFO [stderr]    |         |
Dec 13 01:51:54.883 INFO [stderr]    |         help: remove this `mut`
Dec 13 01:51:54.883 INFO [stderr]    |
Dec 13 01:51:54.883 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 01:51:54.883 INFO [stderr] 
Dec 13 01:51:56.396 INFO [stderr] error: build failed
Dec 13 01:51:56.396 INFO [stderr] su: No module specific data is present
Dec 13 01:51:56.983 INFO running `"docker" "inspect" "91637d401460068d6428d41ce2e25c247efc888d1b2e10c067cbe42c0885d2ad"`
Dec 13 01:51:57.305 INFO running `"docker" "rm" "-f" "91637d401460068d6428d41ce2e25c247efc888d1b2e10c067cbe42c0885d2ad"`
Dec 13 01:51:57.599 INFO [stdout] 91637d401460068d6428d41ce2e25c247efc888d1b2e10c067cbe42c0885d2ad