[INFO] cloning repository https://github.com/rdwoodring/adventofcode2022
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rdwoodring/adventofcode2022" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdwoodring%2Fadventofcode2022", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdwoodring%2Fadventofcode2022'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a584421afb7b51bbdc17d5c45e4cdb390b129da
[INFO] building rdwoodring/adventofcode2022 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdwoodring%2Fadventofcode2022" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rdwoodring/adventofcode2022 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rdwoodring/adventofcode2022
[INFO] finished tweaking git repo https://github.com/rdwoodring/adventofcode2022
[INFO] tweaked toml for git repo https://github.com/rdwoodring/adventofcode2022 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rdwoodring/adventofcode2022 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 469562ec7e729fe78eac009a9173bf0171aa0657ace717f2650453732f5427a3
[INFO] running `Command { std: "docker" "start" "-a" "469562ec7e729fe78eac009a9173bf0171aa0657ace717f2650453732f5427a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "469562ec7e729fe78eac009a9173bf0171aa0657ace717f2650453732f5427a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469562ec7e729fe78eac009a9173bf0171aa0657ace717f2650453732f5427a3", kill_on_drop: false }`
[INFO] [stdout] 469562ec7e729fe78eac009a9173bf0171aa0657ace717f2650453732f5427a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0947b6d5ba17ebbb1c871a08c17ec1640c540c5d8bd7172ab661c31b3208bb4f
[INFO] running `Command { std: "docker" "start" "-a" "0947b6d5ba17ebbb1c871a08c17ec1640c540c5d8bd7172ab661c31b3208bb4f", 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]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling day6-1 v0.1.0 (/opt/rustwide/workdir/day6-1)
[INFO] [stderr]    Compiling day3-1 v0.1.0 (/opt/rustwide/workdir/day3-1)
[INFO] [stderr]    Compiling day4-1 v0.1.0 (/opt/rustwide/workdir/day4-1)
[INFO] [stderr]    Compiling day7-2 v0.1.0 (/opt/rustwide/workdir/day7-2)
[INFO] [stderr]    Compiling day2-1 v0.1.0 (/opt/rustwide/workdir/day2-1)
[INFO] [stderr]    Compiling day2-2 v0.1.0 (/opt/rustwide/workdir/day2-2)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> day2-1/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut translated_choice;
[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]   --> day2-1/src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut score;
[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]   --> day2-1/src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut score;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> day6-1/src/main.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, collections::{HashMap, HashSet}};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> day2-2/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut score;
[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]   --> day2-2/src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut score;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `win`
[INFO] [stdout]   --> day2-2/src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let win = "Z";
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_win`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling day3-2 v0.1.0 (/opt/rustwide/workdir/day3-2)
[INFO] [stderr]    Compiling day6-2 v0.1.0 (/opt/rustwide/workdir/day6-2)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> day3-2/src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in slice_start_index..slice_end_index {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> day6-2/src/main.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, collections::{HashMap, HashSet}};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling day4-2 v0.1.0 (/opt/rustwide/workdir/day4-2)
[INFO] [stderr]    Compiling day7-1 v0.1.0 (/opt/rustwide/workdir/day7-1)
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]    Compiling day5-2 v0.1.0 (/opt/rustwide/workdir/day5-2)
[INFO] [stderr]    Compiling day5-1 v0.1.0 (/opt/rustwide/workdir/day5-1)
[INFO] [stderr]    Compiling day1-2 v0.1.0 (/opt/rustwide/workdir/day1-2)
[INFO] [stderr]    Compiling day1-1 v0.1.0 (/opt/rustwide/workdir/day1-1)
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]   --> day5-2/src/main.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::new();
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]   --> day5-1/src/main.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::new();
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[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]   --> day5-2/src/main.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::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]   --> day5-1/src/main.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.39s
[INFO] running `Command { std: "docker" "inspect" "0947b6d5ba17ebbb1c871a08c17ec1640c540c5d8bd7172ab661c31b3208bb4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0947b6d5ba17ebbb1c871a08c17ec1640c540c5d8bd7172ab661c31b3208bb4f", kill_on_drop: false }`
[INFO] [stdout] 0947b6d5ba17ebbb1c871a08c17ec1640c540c5d8bd7172ab661c31b3208bb4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9944ba09244d3aefc8fa7c2fa0075ed279422cef93da2b5d791108401a642990
[INFO] running `Command { std: "docker" "start" "-a" "9944ba09244d3aefc8fa7c2fa0075ed279422cef93da2b5d791108401a642990", 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]    Compiling day7-1 v0.1.0 (/opt/rustwide/workdir/day7-1)
[INFO] [stderr]    Compiling day7-2 v0.1.0 (/opt/rustwide/workdir/day7-2)
[INFO] [stderr]    Compiling day4-2 v0.1.0 (/opt/rustwide/workdir/day4-2)
[INFO] [stderr]    Compiling day2-2 v0.1.0 (/opt/rustwide/workdir/day2-2)
[INFO] [stderr]    Compiling day3-1 v0.1.0 (/opt/rustwide/workdir/day3-1)
[INFO] [stderr]    Compiling day3-2 v0.1.0 (/opt/rustwide/workdir/day3-2)
[INFO] [stderr]    Compiling day6-1 v0.1.0 (/opt/rustwide/workdir/day6-1)
[INFO] [stderr]    Compiling day5-1 v0.1.0 (/opt/rustwide/workdir/day5-1)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> day6-1/src/main.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, collections::{HashMap, HashSet}};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]   --> day5-1/src/main.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::new();
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[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]   --> day5-1/src/main.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::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]  --> day2-2/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut score;
[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]   --> day2-2/src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut score;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `win`
[INFO] [stdout]   --> day2-2/src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let win = "Z";
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_win`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> day3-2/src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in slice_start_index..slice_end_index {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling day5-2 v0.1.0 (/opt/rustwide/workdir/day5-2)
[INFO] [stderr]    Compiling day1-1 v0.1.0 (/opt/rustwide/workdir/day1-1)
[INFO] [stderr]    Compiling day1-2 v0.1.0 (/opt/rustwide/workdir/day1-2)
[INFO] [stderr]    Compiling day2-1 v0.1.0 (/opt/rustwide/workdir/day2-1)
[INFO] [stderr]    Compiling day6-2 v0.1.0 (/opt/rustwide/workdir/day6-2)
[INFO] [stderr]    Compiling day4-1 v0.1.0 (/opt/rustwide/workdir/day4-1)
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]   --> day5-2/src/main.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::new();
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[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]   --> day5-2/src/main.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut stack: Vec<char> = Vec::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]   --> day2-1/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut translated_choice;
[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]   --> day2-1/src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut score;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> day6-2/src/main.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, collections::{HashMap, HashSet}};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> day2-1/src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut score;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "9944ba09244d3aefc8fa7c2fa0075ed279422cef93da2b5d791108401a642990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9944ba09244d3aefc8fa7c2fa0075ed279422cef93da2b5d791108401a642990", kill_on_drop: false }`
[INFO] [stdout] 9944ba09244d3aefc8fa7c2fa0075ed279422cef93da2b5d791108401a642990