[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] 8a1acaa1c5730ceed61096eecdc6c3105eb10a09
[INFO] checking sts10/advent-of-code-2018 against 165655a2f1981fef27b31c547ad7631979fc5139 for pr-160235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[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-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sts10/advent-of-code-2018 on toolchain 165655a2f1981fef27b31c547ad7631979fc5139
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `advent-of-code-2018-reorganized` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9
[INFO] running `Command { std: "docker" "start" "732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `advent-of-code-2018-reorganized` (manifest) generated 1 warning
[INFO] [stderr]     Checking advent-of-code-2018-reorganized v0.1.0 (/opt/rustwide/workdir)
[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: consider using `_the_char_to_remove_that_resulted_in_shortest_polymer_result` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[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: 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(nonstandard_style)]`) 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: fields `date_time`, `guard_starting_id`, `asleep`, and `number_of_minutes_till_next_event_or_1am` are never read
[INFO] [stdout]    --> src/bin/day04_bad_attempt.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct Event {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 140 |     // Utc.ymd(2014, 7, 8).and_hms(9, 10, 11); // `2014-07-08T09:10:11Z
[INFO] [stdout] 141 |     date_time: String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     guard_starting_id: Option<usize>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 149 |     asleep: bool,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 150 |     number_of_minutes_till_next_event_or_1am: Option<u32>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `date_time`, `guard_starting_id`, `asleep`, and `number_of_minutes_till_next_event_or_1am` are never read
[INFO] [stdout]    --> src/bin/day04_bad_attempt.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct Event {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 140 |     // Utc.ymd(2014, 7, 8).and_hms(9, 10, 11); // `2014-07-08T09:10:11Z
[INFO] [stdout] 141 |     date_time: String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     guard_starting_id: Option<usize>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 149 |     asleep: bool,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 150 |     number_of_minutes_till_next_event_or_1am: Option<u32>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `minutes_between_midnight_and_1am_asleep`, and `number_of_minutes_between_midnight_and_1am_asleep` are never read
[INFO] [stdout]    --> src/bin/day04_bad_attempt.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | struct Guard {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 154 |     id: usize,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 155 |     minutes_between_midnight_and_1am_asleep: HashMap<usize, usize>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 156 |     number_of_minutes_between_midnight_and_1am_asleep: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Guard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `minutes_between_midnight_and_1am_asleep`, and `number_of_minutes_between_midnight_and_1am_asleep` are never read
[INFO] [stdout]    --> src/bin/day04_bad_attempt.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | struct Guard {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 154 |     id: usize,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 155 |     minutes_between_midnight_and_1am_asleep: HashMap<usize, usize>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 156 |     number_of_minutes_between_midnight_and_1am_asleep: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Guard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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: consider using `_the_char_to_remove_that_resulted_in_shortest_polymer_result` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[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: 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)]` (part of `#[warn(unused)]`) on by default
[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]    |         ------ first assignment to `square`
[INFO] [stdout] 50 |         match square {
[INFO] [stdout] 51 |             "." => square = sign,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ cannot assign twice to immutable variable
[INFO] [stdout]    |
[INFO] [stdout] help: consider making this binding mutable
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for mut square in nine_squares {
[INFO] [stdout]    |         +++
[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]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[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` (bin "day06") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `date_time` is never read
[INFO] [stdout]    --> src/bin/day04.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 195 | struct Event {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 196 |     date_time: String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `date_time` is never read
[INFO] [stdout]    --> src/bin/day04.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 195 | struct Event {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 196 |     date_time: String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[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]    |         ------ first assignment to `square`
[INFO] [stdout] 50 |         match square {
[INFO] [stdout] 51 |             "." => square = sign,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ cannot assign twice to immutable variable
[INFO] [stdout]    |
[INFO] [stdout] help: consider making this binding mutable
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for mut square in nine_squares {
[INFO] [stdout]    |         +++
[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]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[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]    |                ---------- ^^^^^^^^^^^ expected `&[isize]`, found `Vec<isize>`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&[isize]`
[INFO] [stdout]                  found struct `Vec<isize>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/bin/day01.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn sum_vector(vec: &[isize]) -> isize {
[INFO] [stdout]    |    ^^^^^^^^^^ -------------
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 76 |     assert_eq!(sum_vector(&test_vector), (3 + -7 + 200 + 13 + -123));
[INFO] [stdout]    |                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code-2018-reorganized` (bin "day01" test) due to 1 previous error
[INFO] [stderr] error: could not compile `advent-of-code-2018-reorganized` (bin "day06" test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9", kill_on_drop: false }`
[INFO] [stdout] 732d8fc86ea8f0d2d53b5d20a6216f0cd2951f7cec538f3d1af1119a4a8f0fd9
