[INFO] cloning repository https://github.com/sts10/advent-of-code-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sts10/advent-of-code-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 749149d5dd3fec7f50af6c186c64fae199e3643b
[INFO] checking sts10/advent-of-code-2018 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sts10/advent-of-code-2018 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sts10/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/sts10/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/sts10/advent-of-code-2018 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/sts10/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a267f7d594c6ae643113d03b35f4118bc709ebbf0b20ac456ac251e4aa5a219
[INFO] running `Command { std: "docker" "start" "-a" "3a267f7d594c6ae643113d03b35f4118bc709ebbf0b20ac456ac251e4aa5a219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a267f7d594c6ae643113d03b35f4118bc709ebbf0b20ac456ac251e4aa5a219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a267f7d594c6ae643113d03b35f4118bc709ebbf0b20ac456ac251e4aa5a219", kill_on_drop: false }`
[INFO] [stdout] 3a267f7d594c6ae643113d03b35f4118bc709ebbf0b20ac456ac251e4aa5a219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9af490ece047ce88f9f559a6ade73e98183379540585dfff1c985cef16c946f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9af490ece047ce88f9f559a6ade73e98183379540585dfff1c985cef16c946f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking advent-of-code-2018-reorganized v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `new_grid`
[INFO] [stdout]   --> src/bin/day06.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 let new_grid = spread(x, y, grid);
[INFO] [stdout]    |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_grid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `square` is never read
[INFO] [stdout]   --> src/bin/day06.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |             "." => square = sign,
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `square`
[INFO] [stdout]   --> src/bin/day06.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for square in nine_squares {
[INFO] [stdout]    |         ------
[INFO] [stdout]    |         |
[INFO] [stdout]    |         first assignment to `square`
[INFO] [stdout]    |         help: make this binding mutable: `mut square`
[INFO] [stdout] 50 |         match square {
[INFO] [stdout] 51 |             "." => square = sign,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ cannot assign twice to immutable variable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `guards`
[INFO] [stdout]   --> src/bin/day04_bad_attempt.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut guards: HashMap<usize, Guard> = HashMap::new();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_guards`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code-2018-reorganized`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day04_bad_attempt.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut guards: HashMap<usize, Guard> = HashMap::new();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `the_char_to_remove_that_resulted_in_shortest_polymer_result` is assigned to, but never used
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut the_char_to_remove_that_resulted_in_shortest_polymer_result: char;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_the_char_to_remove_that_resulted_in_shortest_polymer_result` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `the_char_to_remove_that_resulted_in_shortest_polymer_result` is never read
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             the_char_to_remove_that_resulted_in_shortest_polymer_result = *char_to_remove;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `indexes_to_remove`
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut indexes_to_remove: Vec<usize> = vec![];
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_indexes_to_remove`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `guards`
[INFO] [stdout]   --> src/bin/day04_bad_attempt.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut guards: HashMap<usize, Guard> = HashMap::new();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_guards`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day04_bad_attempt.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut guards: HashMap<usize, Guard> = HashMap::new();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut indexes_to_remove: Vec<usize> = vec![];
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_grid`
[INFO] [stdout]   --> src/bin/day06.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 let new_grid = spread(x, y, grid);
[INFO] [stdout]    |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_grid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `square` is never read
[INFO] [stdout]   --> src/bin/day06.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |             "." => square = sign,
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `square`
[INFO] [stdout]   --> src/bin/day06.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for square in nine_squares {
[INFO] [stdout]    |         ------
[INFO] [stdout]    |         |
[INFO] [stdout]    |         first assignment to `square`
[INFO] [stdout]    |         help: make this binding mutable: `mut square`
[INFO] [stdout] 50 |         match square {
[INFO] [stdout] 51 |             "." => square = sign,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ cannot assign twice to immutable variable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable `the_char_to_remove_that_resulted_in_shortest_polymer_result` is assigned to, but never used
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut the_char_to_remove_that_resulted_in_shortest_polymer_result: char;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_the_char_to_remove_that_resulted_in_shortest_polymer_result` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `the_char_to_remove_that_resulted_in_shortest_polymer_result` is never read
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             the_char_to_remove_that_resulted_in_shortest_polymer_result = *char_to_remove;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `indexes_to_remove`
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut indexes_to_remove: Vec<usize> = vec![];
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_indexes_to_remove`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returns_None_if_more_than_one_character_off` should have a snake case name
[INFO] [stdout]    --> src/bin/day02.rs:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn returns_None_if_more_than_one_character_off() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `returns_none_if_more_than_one_character_off`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returns_None_if_exact_match` should have a snake case name
[INFO] [stdout]    --> src/bin/day02.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn returns_None_if_exact_match() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `returns_none_if_exact_match`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/my_slow_day05.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut indexes_to_remove: Vec<usize> = vec![];
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/day01.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |     assert_eq!(sum_vector(test_vector), (3 + -7 + 200 + 13 + -123));
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           expected `&[isize]`, found struct `Vec`
[INFO] [stdout]    |                           help: consider borrowing here: `&test_vector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&[isize]`
[INFO] [stdout]                  found struct `Vec<isize>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9af490ece047ce88f9f559a6ade73e98183379540585dfff1c985cef16c946f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af490ece047ce88f9f559a6ade73e98183379540585dfff1c985cef16c946f8", kill_on_drop: false }`
[INFO] [stdout] 9af490ece047ce88f9f559a6ade73e98183379540585dfff1c985cef16c946f8
