[INFO] cloning repository https://github.com/ktrieu/advent-of-code-2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ktrieu/advent-of-code-2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktrieu%2Fadvent-of-code-2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktrieu%2Fadvent-of-code-2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f6dbcd117c6a054fa9995beabf9d7b16411ef1e
[INFO] checking ktrieu/advent-of-code-2023 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktrieu%2Fadvent-of-code-2023" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ktrieu/advent-of-code-2023
[INFO] finished tweaking git repo https://github.com/ktrieu/advent-of-code-2023
[INFO] tweaked toml for git repo https://github.com/ktrieu/advent-of-code-2023 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ktrieu/advent-of-code-2023 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ktrieu/advent-of-code-2023 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5877f586e7d2dcafd66f0bd041fb110d108e285d9f6d020285de4609b6d2cc32
[INFO] running `Command { std: "docker" "start" "-a" "5877f586e7d2dcafd66f0bd041fb110d108e285d9f6d020285de4609b6d2cc32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5877f586e7d2dcafd66f0bd041fb110d108e285d9f6d020285de4609b6d2cc32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5877f586e7d2dcafd66f0bd041fb110d108e285d9f6d020285de4609b6d2cc32", kill_on_drop: false }`
[INFO] [stdout] 5877f586e7d2dcafd66f0bd041fb110d108e285d9f6d020285de4609b6d2cc32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66536deb45b97d8f000d40b403bc32ca3f769641e94728c0e48463ed019f7bae
[INFO] running `Command { std: "docker" "start" "-a" "66536deb45b97d8f000d40b403bc32ca3f769641e94728c0e48463ed019f7bae", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking d24 v0.1.0 (/opt/rustwide/workdir/d24)
[INFO] [stderr]     Checking d25 v0.1.0 (/opt/rustwide/workdir/d25)
[INFO] [stderr]     Checking d23 v0.1.0 (/opt/rustwide/workdir/d23)
[INFO] [stderr]     Checking d18 v0.1.0 (/opt/rustwide/workdir/d18)
[INFO] [stderr]     Checking d15 v0.1.0 (/opt/rustwide/workdir/d15)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> d15/src/p2.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |             sum += ((1 + idx) * (lidx + 1) * l.1 as usize);
[INFO] [stdout]    |                    ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -             sum += ((1 + idx) * (lidx + 1) * l.1 as usize);
[INFO] [stdout] 59 +             sum += (1 + idx) * (lidx + 1) * l.1 as usize;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d24/src/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d23/src/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d24/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d23/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf_reader`
[INFO] [stdout]   --> d15/src/p2.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let buf_reader = BufReader::new(file);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf_reader`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashSet`, `VecDeque`, and `iter::zip`
[INFO] [stdout]  --> d18/src/p1.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^^^           ^^^^^^^  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     iter::zip,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashSet`, `VecDeque`, and `iter::zip`
[INFO] [stdout]  --> d18/src/p2.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^^^           ^^^^^^^  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     iter::zip,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> d15/src/p1.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     buf_reader.read_line(&mut s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let _ = buf_reader.read_line(&mut s);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d09 v0.1.0 (/opt/rustwide/workdir/d09)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> d15/src/p2.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     buf_reader.read_line(&mut s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let _ = buf_reader.read_line(&mut s);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d24/src/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d24/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d06 v0.1.0 (/opt/rustwide/workdir/d06)
[INFO] [stderr]     Checking d19 v0.1.0 (/opt/rustwide/workdir/d19)
[INFO] [stderr]     Checking d20 v0.1.0 (/opt/rustwide/workdir/d20)
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> d18/src/p1.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let mut size = 0;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]    --> d18/src/p1.rs:128:10
[INFO] [stdout]     |
[INFO] [stdout] 128 |     for (row, l) in buf_reader.lines().enumerate() {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p1.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let mut size = 0;
[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: unnecessary parentheses around assigned value
[INFO] [stdout]   --> d15/src/p2.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |             sum += ((1 + idx) * (lidx + 1) * l.1 as usize);
[INFO] [stdout]    |                    ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -             sum += ((1 + idx) * (lidx + 1) * l.1 as usize);
[INFO] [stdout] 59 +             sum += (1 + idx) * (lidx + 1) * l.1 as usize;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf_reader`
[INFO] [stdout]   --> d15/src/p2.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let buf_reader = BufReader::new(file);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf_reader`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> d15/src/p1.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     buf_reader.read_line(&mut s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let _ = buf_reader.read_line(&mut s);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> d15/src/p2.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     buf_reader.read_line(&mut s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let _ = buf_reader.read_line(&mut s);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> d18/src/p2.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |     let mut b: Board = HashMap::new();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dir_last` is assigned to, but never used
[INFO] [stdout]    --> d18/src/p2.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let mut dir_last: Option<Dir> = None;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_dir_last` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `turning`
[INFO] [stdout]    --> d18/src/p2.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut turning = 0;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_turning`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]    --> d18/src/p2.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut min = Coord::new(0, 0);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]    --> d18/src/p2.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut max = Coord::new(0, 0);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]    --> d18/src/p2.rs:139:10
[INFO] [stdout]     |
[INFO] [stdout] 139 |     for (row, l) in buf_reader.lines().enumerate() {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> d18/src/p2.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let dir = comps.next().unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `steps`
[INFO] [stdout]    --> d18/src/p2.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let steps = comps.next().unwrap();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_steps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dir_last` is never read
[INFO] [stdout]    --> d18/src/p2.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         dir_last = Some(dir);
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d25/src/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d25/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_line` is never used
[INFO] [stdout]  --> d06/src/p1.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn parse_line(line: &str) -> Vec<i64> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Race` is never constructed
[INFO] [stdout]   --> d06/src/p1.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Race {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `wins_possible` is never used
[INFO] [stdout]   --> d06/src/p1.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Race {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 20 |     pub fn wins_possible(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p1` is never used
[INFO] [stdout]   --> d06/src/p1.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn p1() -> std::io::Result<()> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Output`
[INFO] [stdout]  --> d20/src/p1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Output`
[INFO] [stdout]  --> d20/src/p2.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d21 v0.1.0 (/opt/rustwide/workdir/d21)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |     let mut b: Board = HashMap::new();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut turning = 0;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut min = Coord::new(0, 0);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut max = Coord::new(0, 0);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIRS` is never used
[INFO] [stdout]   --> d18/src/p1.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | const DIRS: [Dir; 4] = [Dir::Up, Dir::Left, Dir::Down, Dir::Right];
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIRS` is never used
[INFO] [stdout]   --> d18/src/p2.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | const DIRS: [Dir; 4] = [Dir::Up, Dir::Left, Dir::Down, Dir::Right];
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VecDeque` and `hash_map`
[INFO] [stdout]  --> d21/src/p1.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{hash_map, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VecDeque` and `hash_map`
[INFO] [stdout]  --> d21/src/p2.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{hash_map, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d14 v0.1.0 (/opt/rustwide/workdir/d14)
[INFO] [stdout] warning: unused imports: `VecDeque` and `hash_map`
[INFO] [stdout]  --> d21/src/p1.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{hash_map, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VecDeque` and `hash_map`
[INFO] [stdout]  --> d21/src/p2.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{hash_map, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `start` is assigned to, but never used
[INFO] [stdout]   --> d21/src/p2.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut start = Coord::new(0, 0);
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_start` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]   --> d21/src/p2.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 start = Coord::new(row, col);
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> d21/src/p2.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let N = 2022999;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d25/src/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d25/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d12 v0.1.0 (/opt/rustwide/workdir/d12)
[INFO] [stderr]     Checking d16 v0.1.0 (/opt/rustwide/workdir/d16)
[INFO] [stdout] warning: variable `start` is assigned to, but never used
[INFO] [stdout]   --> d21/src/p2.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut start = Coord::new(0, 0);
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_start` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]   --> d21/src/p2.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 start = Coord::new(row, col);
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d07 v0.1.0 (/opt/rustwide/workdir/d07)
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> d21/src/p2.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let N = 2022999;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `working`
[INFO] [stdout]    --> d12/src/p1.rs:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |             let working = if h(cond, &evalw) {
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_working`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `broken`
[INFO] [stdout]    --> d12/src/p1.rs:177:17
[INFO] [stdout]     |
[INFO] [stdout] 177 |             let broken = if valid {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_broken`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d17 v0.1.0 (/opt/rustwide/workdir/d17)
[INFO] [stdout] warning: unused imports: `HashSet` and `os`
[INFO] [stdout]  --> d14/src/p1.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     os,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d11 v0.1.0 (/opt/rustwide/workdir/d11)
[INFO] [stdout] warning: value assigned to `rocks` is never read
[INFO] [stdout]    --> d14/src/p1.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |     let mut rocks: Vec<(usize, usize)> = Vec::new();
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]    --> d14/src/p1.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let mut sum = 0;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sum` is assigned to, but never used
[INFO] [stdout]    --> d14/src/p1.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |     let mut sum = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_sum` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d14/src/p1.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let mut sum = 0;
[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: function `drocks` is never used
[INFO] [stdout]    --> d14/src/p1.rs:141:4
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn drocks(rocks: &Vec<(usize, usize)>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashSet` and `VecDeque`
[INFO] [stdout]  --> d17/src/p2.rs:2:40
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                                        ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> d07/src/p1.rs:1:84
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, io::{BufReader, BufRead}, fs::File, cmp::Ordering, ops::Index, fmt::Display};
[INFO] [stdout]   |                                                                                    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> d07/src/p2.rs:1:84
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, io::{BufReader, BufRead}, fs::File, cmp::Ordering, ops::Index, fmt::Display};
[INFO] [stdout]   |                                                                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visited`
[INFO] [stdout]    --> d17/src/p1.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut visited: HashSet<(Coord, [Option<Dir>; 3])> = HashSet::new();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> d17/src/p1.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn compute(b: &Board) -> HashMap<Coord, Vec<Coord>> {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d17/src/p1.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut visited: HashSet<(Coord, [Option<Dir>; 3])> = HashSet::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]    --> d17/src/p1.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let mut graph = HashMap::new();
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `iters` is assigned to, but never used
[INFO] [stdout]    --> d17/src/p1.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let mut iters = 0;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_iters` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirs`
[INFO] [stdout]    --> d17/src/p1.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let dirs = valid_dirs(&hist);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dirs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d13 v0.1.0 (/opt/rustwide/workdir/d13)
[INFO] [stdout] warning: struct `Hand` is never constructed
[INFO] [stdout]  --> d07/src/p1.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Hand {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CARD_ORDER` is never used
[INFO] [stdout]   --> d07/src/p1.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const CARD_ORDER: [char; 13] = ['2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K', 'A'];
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cards_cmp` is never used
[INFO] [stdout]   --> d07/src/p1.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn cards_cmp(lhs: char, rhs: char) -> Ordering {     
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `hand_type`, and `rank` are never used
[INFO] [stdout]   --> d07/src/p1.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Hand {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 25 |     pub fn new(line: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn hand_type(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn rank(&self, other: &Hand) -> Ordering {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p1` is never used
[INFO] [stdout]    --> d07/src/p1.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub fn p1() -> std::io::Result<()> {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> d07/src/p1.rs:1:84
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, io::{BufReader, BufRead}, fs::File, cmp::Ordering, ops::Index, fmt::Display};
[INFO] [stdout]   |                                                                                    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> d07/src/p2.rs:1:84
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, io::{BufReader, BufRead}, fs::File, cmp::Ordering, ops::Index, fmt::Display};
[INFO] [stdout]   |                                                                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashSet` and `os`
[INFO] [stdout]  --> d14/src/p1.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     os,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `working`
[INFO] [stdout]    --> d12/src/p1.rs:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |             let working = if h(cond, &evalw) {
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_working`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `broken`
[INFO] [stdout]    --> d12/src/p1.rs:177:17
[INFO] [stdout]     |
[INFO] [stdout] 177 |             let broken = if valid {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_broken`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashSet` and `VecDeque`
[INFO] [stdout]  --> d17/src/p2.rs:2:40
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                                        ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d10 v0.1.0 (/opt/rustwide/workdir/d10)
[INFO] [stdout] warning: value assigned to `rocks` is never read
[INFO] [stdout]    --> d14/src/p1.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |     let mut rocks: Vec<(usize, usize)> = Vec::new();
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]    --> d14/src/p1.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let mut sum = 0;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sum` is assigned to, but never used
[INFO] [stdout]    --> d14/src/p1.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |     let mut sum = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_sum` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d14/src/p1.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let mut sum = 0;
[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: function `drocks` is never used
[INFO] [stdout]    --> d14/src/p1.rs:141:4
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn drocks(rocks: &Vec<(usize, usize)>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `checked`
[INFO] [stdout]   --> d13/src/p1.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut checked = false;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checked`
[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]   --> d13/src/p1.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut checked = false;
[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: `idx`
[INFO] [stdout]   --> d13/src/p1.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |     for (idx, l) in reader
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> d13/src/p2.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 |     for (idx, l) in reader
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `added` is never read
[INFO] [stdout]    --> d13/src/p2.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |                 added = true;
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> d13/src/p1.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     while l >= 0 && r < d.len() {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_line` is never used
[INFO] [stdout]  --> d06/src/p1.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn parse_line(line: &str) -> Vec<i64> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Race` is never constructed
[INFO] [stdout]   --> d06/src/p1.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Race {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `wins_possible` is never used
[INFO] [stdout]   --> d06/src/p1.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Race {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 20 |     pub fn wins_possible(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p1` is never used
[INFO] [stdout]   --> d06/src/p1.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn p1() -> std::io::Result<()> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> d13/src/p2.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 |     while l >= 0 && r < d.len() {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hand` is never constructed
[INFO] [stdout]  --> d07/src/p1.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Hand {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CARD_ORDER` is never used
[INFO] [stdout]   --> d07/src/p1.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const CARD_ORDER: [char; 13] = ['2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K', 'A'];
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cards_cmp` is never used
[INFO] [stdout]   --> d07/src/p1.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn cards_cmp(lhs: char, rhs: char) -> Ordering {     
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `hand_type`, and `rank` are never used
[INFO] [stdout]   --> d07/src/p1.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Hand {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 25 |     pub fn new(line: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn hand_type(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn rank(&self, other: &Hand) -> Ordering {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p1` is never used
[INFO] [stdout]    --> d07/src/p1.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub fn p1() -> std::io::Result<()> {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d05 v0.1.0 (/opt/rustwide/workdir/d05)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> d10/src/p1.rs:1:70
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::{BufReader, BufRead}, fs::File, collections::{HashMap, HashSet, VecDeque}};
[INFO] [stdout]   |                                                                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visited`
[INFO] [stdout]    --> d17/src/p1.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut visited: HashSet<(Coord, [Option<Dir>; 3])> = HashSet::new();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> d17/src/p1.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn compute(b: &Board) -> HashMap<Coord, Vec<Coord>> {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d17/src/p1.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut visited: HashSet<(Coord, [Option<Dir>; 3])> = HashSet::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]    --> d17/src/p1.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let mut graph = HashMap::new();
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `iters` is assigned to, but never used
[INFO] [stdout]    --> d17/src/p1.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let mut iters = 0;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_iters` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirs`
[INFO] [stdout]    --> d17/src/p1.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let dirs = valid_dirs(&hist);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dirs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inside`
[INFO] [stdout]    --> d10/src/p2.rs:180:17
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut inside = false;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inside`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> d10/src/p2.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 (Some(n), None) => {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> d10/src/p2.rs:198:23
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 (Some(l), Some(n)) => {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> d10/src/p2.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             last = node;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d10/src/p2.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut inside = false;
[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 imports: `BinaryHeap`, `HashSet`, `VecDeque`, and `iter::zip`
[INFO] [stdout]  --> d18/src/p1.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^^^           ^^^^^^^  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     iter::zip,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashSet`, `VecDeque`, and `iter::zip`
[INFO] [stdout]  --> d18/src/p2.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^^^           ^^^^^^^  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     iter::zip,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> d18/src/p1.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let mut size = 0;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]    --> d18/src/p1.rs:128:10
[INFO] [stdout]     |
[INFO] [stdout] 128 |     for (row, l) in buf_reader.lines().enumerate() {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p1.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let mut size = 0;
[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: `b`
[INFO] [stdout]    --> d18/src/p2.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |     let mut b: Board = HashMap::new();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dir_last` is assigned to, but never used
[INFO] [stdout]    --> d18/src/p2.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let mut dir_last: Option<Dir> = None;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_dir_last` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `turning`
[INFO] [stdout]    --> d18/src/p2.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut turning = 0;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_turning`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]    --> d18/src/p2.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut min = Coord::new(0, 0);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]    --> d18/src/p2.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut max = Coord::new(0, 0);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]    --> d18/src/p2.rs:139:10
[INFO] [stdout]     |
[INFO] [stdout] 139 |     for (row, l) in buf_reader.lines().enumerate() {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> d18/src/p2.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let dir = comps.next().unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `steps`
[INFO] [stdout]    --> d18/src/p2.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let steps = comps.next().unwrap();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_steps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dir_last` is never read
[INFO] [stdout]    --> d18/src/p2.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         dir_last = Some(dir);
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |     let mut b: Board = HashMap::new();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut turning = 0;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut min = Coord::new(0, 0);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d18/src/p2.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut max = Coord::new(0, 0);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIRS` is never used
[INFO] [stdout]   --> d18/src/p1.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | const DIRS: [Dir; 4] = [Dir::Up, Dir::Left, Dir::Down, Dir::Right];
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIRS` is never used
[INFO] [stdout]   --> d18/src/p2.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | const DIRS: [Dir; 4] = [Dir::Up, Dir::Left, Dir::Down, Dir::Right];
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> d10/src/p1.rs:1:70
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::{BufReader, BufRead}, fs::File, collections::{HashMap, HashSet, VecDeque}};
[INFO] [stdout]   |                                                                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d22 v0.1.0 (/opt/rustwide/workdir/d22)
[INFO] [stdout] warning: unused variable: `inside`
[INFO] [stdout]    --> d10/src/p2.rs:180:17
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut inside = false;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inside`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> d10/src/p2.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 (Some(n), None) => {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> d10/src/p2.rs:198:23
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 (Some(l), Some(n)) => {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> d10/src/p2.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             last = node;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> d10/src/p2.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut inside = false;
[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 import: `process::Output`
[INFO] [stdout]  --> d20/src/p1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Output`
[INFO] [stdout]  --> d20/src/p2.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d23/src/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d23/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d22/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `abs` is never used
[INFO] [stdout]   --> d22/src/p1.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Coord {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn abs(&self) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> d22/src/p2.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for l in buf_reader.lines() {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `abs` is never used
[INFO] [stdout]   --> d22/src/p1.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Coord {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn abs(&self) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `checked`
[INFO] [stdout]   --> d13/src/p1.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut checked = false;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checked`
[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]   --> d13/src/p1.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut checked = false;
[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: `idx`
[INFO] [stdout]   --> d13/src/p1.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |     for (idx, l) in reader
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> d13/src/p2.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 |     for (idx, l) in reader
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `added` is never read
[INFO] [stdout]    --> d13/src/p2.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |                 added = true;
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> d13/src/p1.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     while l >= 0 && r < d.len() {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> d13/src/p2.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 |     while l >= 0 && r < d.len() {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking d01 v0.1.0 (/opt/rustwide/workdir/d01)
[INFO] [stderr]     Checking d03 v0.1.0 (/opt/rustwide/workdir/d03)
[INFO] [stderr]     Checking d04 v0.1.0 (/opt/rustwide/workdir/d04)
[INFO] [stderr]     Checking d02 v0.1.0 (/opt/rustwide/workdir/d02)
[INFO] [stdout] warning: unused variable: `line_num`
[INFO] [stdout]   --> d04/src/main.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for (line_num, l) in buf_reader.by_ref().lines().enumerate() {
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> d04/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Card {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 8 |     id: u32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line_num`
[INFO] [stdout]   --> d04/src/main.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 |     for (line_num, l) in buf_reader.by_ref().lines().enumerate() {
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> d04/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Card {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 8 |     id: u32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INITIAL` is never used
[INFO] [stdout]   --> d02/src/main.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const INITIAL: Balls = Balls {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INITIAL` is never used
[INFO] [stdout]   --> d02/src/main.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const INITIAL: Balls = Balls {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> d02/src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Game {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 51 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_valid_trial` is never used
[INFO] [stdout]   --> d02/src/main.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn is_valid_trial(balls: &Balls) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> d02/src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Game {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 51 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_valid_trial` is never used
[INFO] [stdout]   --> d02/src/main.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn is_valid_trial(balls: &Balls) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.64s
[INFO] running `Command { std: "docker" "inspect" "66536deb45b97d8f000d40b403bc32ca3f769641e94728c0e48463ed019f7bae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66536deb45b97d8f000d40b403bc32ca3f769641e94728c0e48463ed019f7bae", kill_on_drop: false }`
[INFO] [stdout] 66536deb45b97d8f000d40b403bc32ca3f769641e94728c0e48463ed019f7bae