[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] testing sts10/advent-of-code-2018 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsts10%2Fadvent-of-code-2018" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-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-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sts10/advent-of-code-2018 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f9f3f4d377d2877896fbe0604eefb0c46a0b269534ac8e8b16d10a45abc0866
[INFO] running `Command { std: "docker" "start" "-a" "9f9f3f4d377d2877896fbe0604eefb0c46a0b269534ac8e8b16d10a45abc0866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f9f3f4d377d2877896fbe0604eefb0c46a0b269534ac8e8b16d10a45abc0866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f9f3f4d377d2877896fbe0604eefb0c46a0b269534ac8e8b16d10a45abc0866", kill_on_drop: false }`
[INFO] [stdout] 9f9f3f4d377d2877896fbe0604eefb0c46a0b269534ac8e8b16d10a45abc0866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67e36893101474d10db6583be078153eb941fd441a40bef67fb4c7017339c0c5
[INFO] running `Command { std: "docker" "start" "-a" "67e36893101474d10db6583be078153eb941fd441a40bef67fb4c7017339c0c5", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling 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)]` (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] help: to modify the original value, take a borrow instead
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for ref 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] [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] [stderr] warning: build failed, waiting for other jobs to finish...
[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/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: 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: 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] running `Command { std: "docker" "inspect" "67e36893101474d10db6583be078153eb941fd441a40bef67fb4c7017339c0c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67e36893101474d10db6583be078153eb941fd441a40bef67fb4c7017339c0c5", kill_on_drop: false }`
[INFO] [stdout] 67e36893101474d10db6583be078153eb941fd441a40bef67fb4c7017339c0c5
