[INFO] cloning repository https://github.com/alexd6631/aoc2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexd6631/aoc2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexd6631%2Faoc2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexd6631%2Faoc2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1837d0bf5ae06f27b53cb05ccc9b358eb20f751c
[INFO] checking alexd6631/aoc2019 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexd6631%2Faoc2019" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexd6631/aoc2019 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexd6631/aoc2019
[INFO] finished tweaking git repo https://github.com/alexd6631/aoc2019
[INFO] tweaked toml for git repo https://github.com/alexd6631/aoc2019 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/alexd6631/aoc2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51756ee5edaade2210434d5a066a01c529b51b215f967b4f3aa6bac0380d2aec
[INFO] running `Command { std: "docker" "start" "-a" "51756ee5edaade2210434d5a066a01c529b51b215f967b4f3aa6bac0380d2aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51756ee5edaade2210434d5a066a01c529b51b215f967b4f3aa6bac0380d2aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51756ee5edaade2210434d5a066a01c529b51b215f967b4f3aa6bac0380d2aec", kill_on_drop: false }`
[INFO] [stdout] 51756ee5edaade2210434d5a066a01c529b51b215f967b4f3aa6bac0380d2aec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c88eb3e55ffa46c12c23646c16cfc287832a56354934e7d663c084916fca0649
[INFO] running `Command { std: "docker" "start" "-a" "c88eb3e55ffa46c12c23646c16cfc287832a56354934e7d663c084916fca0649", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking scan_fmt v0.2.5
[INFO] [stderr]     Checking aoc2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Input`, `Instruction`, `decode_instruction`
[INFO] [stdout]  --> src/intcode/mod.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use instruction::{Input, Instruction, decode_instruction};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/intcode/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bfs.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bfs_alt.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/bfs_alt.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Input`, `Instruction`, `decode_instruction`
[INFO] [stdout]  --> src/intcode/mod.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use instruction::{Input, Instruction, decode_instruction};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/intcode/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bfs.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bfs_alt.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/bfs_alt.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `weak`
[INFO] [stdout]   --> src/bfs.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn weak(&self) -> Weak<NodeHolder<Node, Edge>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `weak`
[INFO] [stdout]   --> src/bfs.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn weak(&self) -> Weak<NodeHolder<Node, Edge>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bin/day15.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BTreeMap, HashMap};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bin/day15.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BTreeMap, HashMap};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/bin/day13.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Error, Formatter};
[INFO] [stdout]   |                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::swap`
[INFO] [stdout]  --> src/bin/day13.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem::swap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::replace`
[INFO] [stdout]  --> src/bin/day13.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr::replace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> src/bin/day13.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/bin/day13.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/bin/day13.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MultiProduct`
[INFO] [stdout]  --> src/bin/2015_day17.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{Itertools, MultiProduct};
[INFO] [stdout]   |                            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::RangeInclusive`
[INFO] [stdout]  --> src/bin/2015_day17.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::RangeInclusive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Color::Black`
[INFO] [stdout]  --> src/bin/day11.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::Color::Black;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day11.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/bin/day7.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/bin/day13.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Error, Formatter};
[INFO] [stdout]   |                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::swap`
[INFO] [stdout]  --> src/bin/day13.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem::swap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::replace`
[INFO] [stdout]  --> src/bin/day13.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr::replace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> src/bin/day13.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/bin/day13.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAMPLE`
[INFO] [stdout]    --> src/bin/2015_day13.rs:96:1
[INFO] [stdout]     |
[INFO] [stdout] 96  | / const SAMPLE: &str = "Alice would gain 54 happiness units by sitting next to Bob.
[INFO] [stdout] 97  | | Alice would lose 79 happiness units by sitting next to Carol.
[INFO] [stdout] 98  | | Alice would lose 2 happiness units by sitting next to David.
[INFO] [stdout] 99  | | Bob would gain 83 happiness units by sitting next to Alice.
[INFO] [stdout] ...   |
[INFO] [stdout] 106 | | David would lose 7 happiness units by sitting next to Bob.
[INFO] [stdout] 107 | | David would gain 41 happiness units by sitting next to Carol.";
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::RandomState`
[INFO] [stdout]  --> src/bin/day14.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::hash_map::RandomState;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> src/bin/day14.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/bin/day14.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/bin/day13.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/bin/day14.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 33 |         (elem_produced, ProductionRule::new((n_produced), required))
[INFO] [stdout]    |                                             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_present`
[INFO] [stdout]  --> src/bin/2015_day20.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn compute_present(house_number: u32) -> u32 {
[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: unused import: `crate::Color::Black`
[INFO] [stdout]  --> src/bin/day11.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::Color::Black;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day11.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MultiProduct`
[INFO] [stdout]  --> src/bin/2015_day17.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{Itertools, MultiProduct};
[INFO] [stdout]   |                            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::RangeInclusive`
[INFO] [stdout]  --> src/bin/2015_day17.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::RangeInclusive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::RandomState`
[INFO] [stdout]  --> src/bin/day14.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::hash_map::RandomState;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/bin/day12.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> src/bin/day14.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/bin/day14.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/bin/day14.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 33 |         (elem_produced, ProductionRule::new((n_produced), required))
[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 imports: `gcd_lcm`, `gcd`
[INFO] [stdout]  --> src/bin/day12.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num_integer::{gcd, gcd_lcm, lcm};
[INFO] [stdout]   |                   ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bin/2015_day19.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/bin/day12.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[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: constant is never used: `SAMPLE`
[INFO] [stdout]    --> src/bin/2015_day13.rs:96:1
[INFO] [stdout]     |
[INFO] [stdout] 96  | / const SAMPLE: &str = "Alice would gain 54 happiness units by sitting next to Bob.
[INFO] [stdout] 97  | | Alice would lose 79 happiness units by sitting next to Carol.
[INFO] [stdout] 98  | | Alice would lose 2 happiness units by sitting next to David.
[INFO] [stdout] 99  | | Bob would gain 83 happiness units by sitting next to Alice.
[INFO] [stdout] ...   |
[INFO] [stdout] 106 | | David would lose 7 happiness units by sitting next to Bob.
[INFO] [stdout] 107 | | David would gain 41 happiness units by sitting next to Carol.";
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/bin/day7.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_present`
[INFO] [stdout]  --> src/bin/2015_day20.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn compute_present(house_number: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/bin/day12.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `gcd_lcm`, `gcd`
[INFO] [stdout]  --> src/bin/day12.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num_integer::{gcd, gcd_lcm, lcm};
[INFO] [stdout]   |                   ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `run_step`
[INFO] [stdout]    --> src/bin/day12.rs:154:23
[INFO] [stdout]     |
[INFO] [stdout] 154 |     use crate::{Moon, run_step, solve_part_1};
[INFO] [stdout]     |                       ^^^^^^^^
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/bin/day12.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bin/2015_day19.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fuel_for_mass_advanced`, `fuel_for_mass`
[INFO] [stdout]   --> src/bin/day1.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use crate::{fuel_for_mass, fuel_for_mass_advanced};
[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 9.83s
[INFO] running `Command { std: "docker" "inspect" "c88eb3e55ffa46c12c23646c16cfc287832a56354934e7d663c084916fca0649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c88eb3e55ffa46c12c23646c16cfc287832a56354934e7d663c084916fca0649", kill_on_drop: false }`
[INFO] [stdout] c88eb3e55ffa46c12c23646c16cfc287832a56354934e7d663c084916fca0649