[INFO] cloning repository https://github.com/fhlmorrison/AOC2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fhlmorrison/AOC2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhlmorrison%2FAOC2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhlmorrison%2FAOC2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0399c0b3c09621629a31f076dc1aeb550cbef190
[INFO] checking fhlmorrison/AOC2023 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhlmorrison%2FAOC2023" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fhlmorrison/AOC2023
[INFO] finished tweaking git repo https://github.com/fhlmorrison/AOC2023
[INFO] tweaked toml for git repo https://github.com/fhlmorrison/AOC2023 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fhlmorrison/AOC2023 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fhlmorrison/AOC2023 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "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]   |
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 421f9c22f708f9ff123eddc232bc603762f0a3bc148396d0fa0ce79b4c008f2d
[INFO] running `Command { std: "docker" "start" "-a" "421f9c22f708f9ff123eddc232bc603762f0a3bc148396d0fa0ce79b4c008f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "421f9c22f708f9ff123eddc232bc603762f0a3bc148396d0fa0ce79b4c008f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "421f9c22f708f9ff123eddc232bc603762f0a3bc148396d0fa0ce79b4c008f2d", kill_on_drop: false }`
[INFO] [stdout] 421f9c22f708f9ff123eddc232bc603762f0a3bc148396d0fa0ce79b4c008f2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 420edb72d3726bfbec7086da72017c188b37965d97c8eca81842227421c0c335
[INFO] running `Command { std: "docker" "start" "-a" "420edb72d3726bfbec7086da72017c188b37965d97c8eca81842227421c0c335", 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]   |
[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]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking day11 v0.1.0 (/opt/rustwide/workdir/day11)
[INFO] [stderr]     Checking day2 v0.1.0 (/opt/rustwide/workdir/day2)
[INFO] [stderr]     Checking day5 v0.1.0 (/opt/rustwide/workdir/day5)
[INFO] [stderr]     Checking day14 v0.1.0 (/opt/rustwide/workdir/day14)
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking day24 v0.1.0 (/opt/rustwide/workdir/day24)
[INFO] [stderr]     Checking day18 v0.1.0 (/opt/rustwide/workdir/day18)
[INFO] [stderr]     Checking day21 v0.1.0 (/opt/rustwide/workdir/day21)
[INFO] [stderr]     Checking day1 v0.1.0 (/opt/rustwide/workdir/day1)
[INFO] [stderr]     Checking day23 v0.1.0 (/opt/rustwide/workdir/day23)
[INFO] [stdout] warning: unused import: `sync::Arc`
[INFO] [stdout]  --> day5/src/main.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::read_to_string, sync::Arc};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reader`
[INFO] [stdout]   --> day24/src/main.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn part_2(reader: &str) {
[INFO] [stdout]    |           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[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]   --> day24/src/main.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mut velocities = split
[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: `vx2`
[INFO] [stdout]    --> day24/src/main.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let (vx2, vy2, _) = other.velocity;
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_vx2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vy2`
[INFO] [stdout]    --> day24/src/main.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let (vx2, vy2, _) = other.velocity;
[INFO] [stdout]     |                   ^^^ help: if this is intentional, prefix it with an underscore: `_vy2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cross_product` is never used
[INFO] [stdout]    --> day24/src/main.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout]  74 | impl Hailstone {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn cross_product(&self, other: &Hailstone) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dot_product` is never used
[INFO] [stdout]    --> day24/src/main.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn dot_product(a: (f64, f64, f64), b: (f64, f64, f64)) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `subtract` is never used
[INFO] [stdout]    --> day24/src/main.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn subtract(a: (f64, f64, f64), b: (f64, f64, f64)) -> (f64, f64, f64) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_intersection` is never used
[INFO] [stdout]    --> day24/src/main.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn find_intersection(h1: Hailstone, h2: Hailstone) -> Option<(f64, f64, f64)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reader`
[INFO] [stdout]   --> day24/src/main.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn part_2(reader: &str) {
[INFO] [stdout]    |           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[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]   --> day24/src/main.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mut velocities = split
[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: `vx2`
[INFO] [stdout]    --> day24/src/main.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let (vx2, vy2, _) = other.velocity;
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_vx2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vy2`
[INFO] [stdout]    --> day24/src/main.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let (vx2, vy2, _) = other.velocity;
[INFO] [stdout]     |                   ^^^ help: if this is intentional, prefix it with an underscore: `_vy2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cross_product` is never used
[INFO] [stdout]    --> day24/src/main.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout]  74 | impl Hailstone {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn cross_product(&self, other: &Hailstone) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dot_product` is never used
[INFO] [stdout]    --> day24/src/main.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn dot_product(a: (f64, f64, f64), b: (f64, f64, f64)) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `subtract` is never used
[INFO] [stdout]    --> day24/src/main.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn subtract(a: (f64, f64, f64), b: (f64, f64, f64)) -> (f64, f64, f64) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_intersection` is never used
[INFO] [stdout]    --> day24/src/main.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn find_intersection(h1: Hailstone, h2: Hailstone) -> Option<(f64, f64, f64)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> day5/src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut cat_ranges = other_cats
[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: function `part_2` is never used
[INFO] [stdout]    --> day5/src/main.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn part_2(reader: &str) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day22 v0.1.0 (/opt/rustwide/workdir/day22)
[INFO] [stdout] warning: unused variable: `trench_area`
[INFO] [stdout]   --> day18/src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let trench_area = map.iter().fold(0, |acc, row| {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trench_area`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day20 v0.1.0 (/opt/rustwide/workdir/day20)
[INFO] [stderr]     Checking day17 v0.1.0 (/opt/rustwide/workdir/day17)
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]    --> day23/src/main.rs:237:8
[INFO] [stdout]     |
[INFO] [stdout] 237 | struct Node {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> day21/src/main.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |     let mut sum = reachable_matrix
[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] [stderr]     Checking day8 v0.1.0 (/opt/rustwide/workdir/day8)
[INFO] [stdout] warning: unused import: `sync::Arc`
[INFO] [stdout]  --> day5/src/main.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::read_to_string, sync::Arc};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day9 v0.1.0 (/opt/rustwide/workdir/day9)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> day5/src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut cat_ranges = other_cats
[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: function `part_2` is never used
[INFO] [stdout]    --> day5/src/main.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn part_2(reader: &str) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day10 v0.1.0 (/opt/rustwide/workdir/day10)
[INFO] [stdout] warning: function `old_chain_reaction` is never used
[INFO] [stdout]    --> day22/src/main.rs:194:4
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn old_chain_reaction(brick: &Brick, support_map: &HashMap<&Brick, HashSet<&Brick>>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day3 v0.1.0 (/opt/rustwide/workdir/day3)
[INFO] [stdout] warning: function `old_part_1` is never used
[INFO] [stdout]    --> day22/src/main.rs:226:4
[INFO] [stdout]     |
[INFO] [stdout] 226 | fn old_part_1(reader: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day4 v0.1.0 (/opt/rustwide/workdir/day4)
[INFO] [stderr]     Checking day15 v0.1.0 (/opt/rustwide/workdir/day15)
[INFO] [stdout] warning: function `old_chain_reaction` is never used
[INFO] [stdout]    --> day22/src/main.rs:194:4
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn old_chain_reaction(brick: &Brick, support_map: &HashMap<&Brick, HashSet<&Brick>>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `old_part_1` is never used
[INFO] [stdout]    --> day22/src/main.rs:226:4
[INFO] [stdout]     |
[INFO] [stdout] 226 | fn old_part_1(reader: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]    --> day23/src/main.rs:237:8
[INFO] [stdout]     |
[INFO] [stdout] 237 | struct Node {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> day21/src/main.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |     let mut sum = reachable_matrix
[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] [stderr]     Checking day19 v0.1.0 (/opt/rustwide/workdir/day19)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> day8/src/main.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn from_str(s: &str) -> Node {
[INFO] [stdout]    |                    ^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn from_str(s: &str) -> Node<'_> {
[INFO] [stdout]    |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum_twos`
[INFO] [stdout]    --> day10/src/main.rs:281:9
[INFO] [stdout]     |
[INFO] [stdout] 281 |     let sum_twos = map_matrix.iter().fold(0, |acc, row| {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sum_twos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day6 v0.1.0 (/opt/rustwide/workdir/day6)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> day10/src/main.rs:437:20
[INFO] [stdout]     |
[INFO] [stdout] 437 |             |acc, (x, pipe)| {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> day10/src/main.rs:434:62
[INFO] [stdout]     |
[INFO] [stdout] 434 |     let right = map_matrix.iter().enumerate().fold(0, |acc, (y, row)| {
[INFO] [stdout]     |                                                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum_twos`
[INFO] [stdout]    --> day10/src/main.rs:281:9
[INFO] [stdout]     |
[INFO] [stdout] 281 |     let sum_twos = map_matrix.iter().fold(0, |acc, row| {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sum_twos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> day10/src/main.rs:437:20
[INFO] [stdout]     |
[INFO] [stdout] 437 |             |acc, (x, pipe)| {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day7 v0.1.0 (/opt/rustwide/workdir/day7)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> day10/src/main.rs:434:62
[INFO] [stdout]     |
[INFO] [stdout] 434 |     let right = map_matrix.iter().enumerate().fold(0, |acc, (y, row)| {
[INFO] [stdout]     |                                                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> day8/src/main.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn from_str(s: &str) -> Node {
[INFO] [stdout]    |                    ^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn from_str(s: &str) -> Node<'_> {
[INFO] [stdout]    |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trench_area`
[INFO] [stdout]   --> day18/src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let trench_area = map.iter().fold(0, |acc, row| {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trench_area`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rayon-core v1.12.0
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking day13 v0.1.0 (/opt/rustwide/workdir/day13)
[INFO] [stderr]     Checking day12 v0.1.0 (/opt/rustwide/workdir/day12)
[INFO] [stderr]     Checking day16 v0.1.0 (/opt/rustwide/workdir/day16)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.63s
[INFO] running `Command { std: "docker" "inspect" "420edb72d3726bfbec7086da72017c188b37965d97c8eca81842227421c0c335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "420edb72d3726bfbec7086da72017c188b37965d97c8eca81842227421c0c335", kill_on_drop: false }`
[INFO] [stdout] 420edb72d3726bfbec7086da72017c188b37965d97c8eca81842227421c0c335
