[INFO] cloning repository https://github.com/peaceman/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peaceman/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeaceman%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeaceman%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bad951d5199fde73540f1e3aa5bcb223902169e
[INFO] checking peaceman/aoc2020 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeaceman%2Faoc2020" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peaceman/aoc2020 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/peaceman/aoc2020
[INFO] finished tweaking git repo https://github.com/peaceman/aoc2020
[INFO] tweaked toml for git repo https://github.com/peaceman/aoc2020 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/peaceman/aoc2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9685887b9188d56a47446517495297b9f014c2a0f3fb3de025212f5b45ceaa22
[INFO] running `Command { std: "docker" "start" "-a" "9685887b9188d56a47446517495297b9f014c2a0f3fb3de025212f5b45ceaa22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9685887b9188d56a47446517495297b9f014c2a0f3fb3de025212f5b45ceaa22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9685887b9188d56a47446517495297b9f014c2a0f3fb3de025212f5b45ceaa22", kill_on_drop: false }`
[INFO] [stdout] 9685887b9188d56a47446517495297b9f014c2a0f3fb3de025212f5b45ceaa22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 281e7b3f4405f00fa2aa909c68c4f773ded408a30bfaefb71e0c419f81fafcac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "281e7b3f4405f00fa2aa909c68c4f773ded408a30bfaefb71e0c419f81fafcac", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking scan_fmt v0.2.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::fmt::Alignment::Left`
[INFO] [stdout]  --> src/bin/day18a.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::fmt::Alignment::Left;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hint::unreachable_unchecked`
[INFO] [stdout]  --> src/bin/day18a.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::hint::unreachable_unchecked;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rules`
[INFO] [stdout]    --> src/bin/day19a.rs:115:37
[INFO] [stdout]     |
[INFO] [stdout] 115 |     use crate::{expand_rule, parse, Rules};
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/bin/day9b.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/bin/day9b.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/day15b.rs:45:6
[INFO] [stdout]    |
[INFO] [stdout] 45 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/day11a.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Display, Formatter};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `messages`
[INFO] [stdout]    --> src/bin/day19a.rs:164:21
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let (rules, messages) = parse(input.trim().as_bytes());
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_messages`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/day11b.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Display, Formatter};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GridPlace`, `Point`
[INFO] [stdout]    --> src/bin/day11b.rs:315:60
[INFO] [stdout]     |
[INFO] [stdout] 315 |     use crate::{apply_seating_rules, count_occupied_seats, GridPlace, Point, SeatLayout};
[INFO] [stdout]     |                                                            ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/bin/day16a.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   std::mem::replace(&mut my_ticket, ticket);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `birth_year`
[INFO] [stdout]   --> src/bin/day4a.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     birth_year: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `issue_year`
[INFO] [stdout]   --> src/bin/day4a.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     issue_year: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expiration_year`
[INFO] [stdout]   --> src/bin/day4a.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     expiration_year: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/bin/day4a.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     height: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hair_color`
[INFO] [stdout]   --> src/bin/day4a.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     hair_color: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eye_color`
[INFO] [stdout]   --> src/bin/day4a.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     eye_color: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `passport_id`
[INFO] [stdout]   --> src/bin/day4a.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     passport_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `country_id`
[INFO] [stdout]    --> src/bin/day4a.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     country_id: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day11a.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn parse(mut reader: impl BufRead) -> Result<Self, ParseError> {
[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: field is never read: `birth_year`
[INFO] [stdout]   --> src/bin/day4b.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     birth_year: BirthYear,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `issue_year`
[INFO] [stdout]   --> src/bin/day4b.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     issue_year: IssueYear,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expiration_year`
[INFO] [stdout]   --> src/bin/day4b.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     expiration_year: ExpirationYear,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]    --> src/bin/day4b.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     height: Height,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hair_color`
[INFO] [stdout]    --> src/bin/day4b.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     hair_color: HairColor,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eye_color`
[INFO] [stdout]    --> src/bin/day4b.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     eye_color: EyeColor,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `passport_id`
[INFO] [stdout]    --> src/bin/day4b.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     passport_id: PassportId,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `country_id`
[INFO] [stdout]    --> src/bin/day4b.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     country_id: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `birth_year`
[INFO] [stdout]   --> src/bin/day4b.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     birth_year: BirthYear,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `issue_year`
[INFO] [stdout]   --> src/bin/day4b.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     issue_year: IssueYear,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expiration_year`
[INFO] [stdout]   --> src/bin/day4b.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     expiration_year: ExpirationYear,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]    --> src/bin/day4b.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     height: Height,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hair_color`
[INFO] [stdout]    --> src/bin/day4b.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     hair_color: HairColor,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eye_color`
[INFO] [stdout]    --> src/bin/day4b.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     eye_color: EyeColor,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `passport_id`
[INFO] [stdout]    --> src/bin/day4b.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     passport_id: PassportId,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `country_id`
[INFO] [stdout]    --> src/bin/day4b.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     country_id: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/day11a.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Display, Formatter};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GridPlace`, `Point`
[INFO] [stdout]    --> src/bin/day11a.rs:276:60
[INFO] [stdout]     |
[INFO] [stdout] 276 |     use crate::{apply_seating_rules, count_occupied_seats, GridPlace, Point, SeatLayout};
[INFO] [stdout]     |                                                            ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day7b.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::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]   --> src/bin/day11a.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn parse(mut reader: impl BufRead) -> Result<Self, ParseError> {
[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: `RulePart`, `Rules`
[INFO] [stdout]    --> src/bin/day19b.rs:185:55
[INFO] [stdout]     |
[INFO] [stdout] 185 |     use crate::{expand_rule, is_valid_message, parse, RulePart, Rules};
[INFO] [stdout]     |                                                       ^^^^^^^^  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/bin/day9b.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/bin/day9b.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Filter`
[INFO] [stdout]  --> src/bin/day17b.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Filter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `messages`
[INFO] [stdout]    --> src/bin/day19b.rs:265:25
[INFO] [stdout]     |
[INFO] [stdout] 265 |         let (mut rules, messages) = parse(input.trim().as_bytes());
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_messages`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `messages`
[INFO] [stdout]    --> src/bin/day19b.rs:317:21
[INFO] [stdout]     |
[INFO] [stdout] 317 |         let (rules, messages) = parse(input.trim().as_bytes());
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_messages`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycle`
[INFO] [stdout]    --> src/bin/day17b.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     for cycle in 0..cycles {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cycle`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Filter`
[INFO] [stdout]  --> src/bin/day17b.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Filter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt::Alignment::Left`
[INFO] [stdout]  --> src/bin/day18b.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::fmt::Alignment::Left;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Pointer`
[INFO] [stdout]  --> src/bin/day18b.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::Pointer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hint::unreachable_unchecked`
[INFO] [stdout]  --> src/bin/day18b.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::hint::unreachable_unchecked;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/day15b.rs:45:6
[INFO] [stdout]    |
[INFO] [stdout] 45 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day7b.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycle`
[INFO] [stdout]    --> src/bin/day17b.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     for cycle in 0..cycles {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cycle`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/day14a.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 |         if let Ok((string_mask)) = scan_fmt!(l, "mask = {}", String) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/bin/day9a.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FieldRules`
[INFO] [stdout]    --> src/bin/day16a.rs:111:62
[INFO] [stdout]     |
[INFO] [stdout] 111 |     use crate::{determine_ticket_scanning_error_rate, parse, FieldRules};
[INFO] [stdout]     |                                                              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_ticket`
[INFO] [stdout]    --> src/bin/day16a.rs:130:27
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let (field_rules, my_ticket, nearby_tickets) = parse(data.as_bytes());
[INFO] [stdout]     |                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_ticket`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt::Alignment::Left`
[INFO] [stdout]  --> src/bin/day18b.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::fmt::Alignment::Left;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Pointer`
[INFO] [stdout]  --> src/bin/day18b.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::Pointer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hint::unreachable_unchecked`
[INFO] [stdout]  --> src/bin/day18b.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::hint::unreachable_unchecked;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expand_rule`
[INFO] [stdout]   --> src/bin/day19b.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn expand_rule(rules: &Rules, idx: usize) -> HashSet<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/bin/day16a.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   std::mem::replace(&mut my_ticket, ticket);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day18b.rs:307:13
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let mut scanner = Scanner::new(input);
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/day15a.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FieldRules`
[INFO] [stdout]    --> src/bin/day16b.rs:193:81
[INFO] [stdout]     |
[INFO] [stdout] 193 |         determine_field_positions, determine_ticket_scanning_error_rate, parse, FieldRules,
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt::Alignment::Left`
[INFO] [stdout]  --> src/bin/day18a.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::fmt::Alignment::Left;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hint::unreachable_unchecked`
[INFO] [stdout]  --> src/bin/day18a.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::hint::unreachable_unchecked;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/day14a.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 |         if let Ok((string_mask)) = scan_fmt!(l, "mask = {}", String) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/bin/day9a.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `birth_year`
[INFO] [stdout]   --> src/bin/day4a.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     birth_year: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `issue_year`
[INFO] [stdout]   --> src/bin/day4a.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     issue_year: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expiration_year`
[INFO] [stdout]   --> src/bin/day4a.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     expiration_year: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/bin/day4a.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     height: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hair_color`
[INFO] [stdout]   --> src/bin/day4a.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     hair_color: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eye_color`
[INFO] [stdout]   --> src/bin/day4a.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     eye_color: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `passport_id`
[INFO] [stdout]   --> src/bin/day4a.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     passport_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `country_id`
[INFO] [stdout]    --> src/bin/day4a.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     country_id: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_ticket`
[INFO] [stdout]    --> src/bin/day16b.rs:213:27
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let (field_rules, my_ticket, nearby_tickets) = parse(data.as_bytes());
[INFO] [stdout]     |                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_ticket`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_ticket`
[INFO] [stdout]    --> src/bin/day16b.rs:235:27
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let (field_rules, my_ticket, nearby_tickets) = parse(data.as_bytes());
[INFO] [stdout]     |                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_ticket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day18a.rs:291:13
[INFO] [stdout]     |
[INFO] [stdout] 291 |         let mut scanner = Scanner::new(input);
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/day15a.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/day11b.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Display, Formatter};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.89s
[INFO] running `Command { std: "docker" "inspect" "281e7b3f4405f00fa2aa909c68c4f773ded408a30bfaefb71e0c419f81fafcac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "281e7b3f4405f00fa2aa909c68c4f773ded408a30bfaefb71e0c419f81fafcac", kill_on_drop: false }`
[INFO] [stdout] 281e7b3f4405f00fa2aa909c68c4f773ded408a30bfaefb71e0c419f81fafcac