[INFO] cloning repository https://github.com/JamesWP/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamesWP/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesWP%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesWP%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f15a33151e0d5e42abf8e419ff85caa2e7f215ae
[INFO] testing JamesWP/aoc2020 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesWP%2Faoc2020" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamesWP/aoc2020 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JamesWP/aoc2020
[INFO] finished tweaking git repo https://github.com/JamesWP/aoc2020
[INFO] tweaked toml for git repo https://github.com/JamesWP/aoc2020 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/JamesWP/aoc2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72edd30ef8d9780c68ade4ca669c58af1b28295bfc6a0938a7db8e80445c6434
[INFO] running `Command { std: "docker" "start" "-a" "72edd30ef8d9780c68ade4ca669c58af1b28295bfc6a0938a7db8e80445c6434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72edd30ef8d9780c68ade4ca669c58af1b28295bfc6a0938a7db8e80445c6434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72edd30ef8d9780c68ade4ca669c58af1b28295bfc6a0938a7db8e80445c6434", kill_on_drop: false }`
[INFO] [stdout] 72edd30ef8d9780c68ade4ca669c58af1b28295bfc6a0938a7db8e80445c6434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9db88264ff1b31941dfbfc54ffbc19c6de28596b4f38bd4d8f59494f980f5b05
[INFO] running `Command { std: "docker" "start" "-a" "9db88264ff1b31941dfbfc54ffbc19c6de28596b4f38bd4d8f59494f980f5b05", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/day19.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fs};
[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/day19.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut rule_map: HashMap<i32, &str> = rules.split("\n").map(|rule| {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_regex`
[INFO] [stdout]  --> src/day19.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn compute_regex<'a>(rule: i32, rule_map: &HashMap<i32, &'a str>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_regex`
[INFO] [stdout]   --> src/day19.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn create_regex(rules: &str, start: i32) -> Regex {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "9db88264ff1b31941dfbfc54ffbc19c6de28596b4f38bd4d8f59494f980f5b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db88264ff1b31941dfbfc54ffbc19c6de28596b4f38bd4d8f59494f980f5b05", kill_on_drop: false }`
[INFO] [stdout] 9db88264ff1b31941dfbfc54ffbc19c6de28596b4f38bd4d8f59494f980f5b05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a98f841ff4ed4c38e4bb525dae2bf7b5d2f3b1830fdcf04ad6076339bce74ed
[INFO] running `Command { std: "docker" "start" "-a" "9a98f841ff4ed4c38e4bb525dae2bf7b5d2f3b1830fdcf04ad6076339bce74ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day19.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let (rules, input) = contents.split("\n\n").collect_tuple().unwrap();
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `regex`
[INFO] [stdout]   --> src/day19.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let regex = create_regex(rules, 8);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_regex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `regex`
[INFO] [stdout]   --> src/day19.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let regex = create_regex(rules, 11);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_regex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day19.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut rule_map: HashMap<i32, &str> = rules.split("\n").map(|rule| {
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "9a98f841ff4ed4c38e4bb525dae2bf7b5d2f3b1830fdcf04ad6076339bce74ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a98f841ff4ed4c38e4bb525dae2bf7b5d2f3b1830fdcf04ad6076339bce74ed", kill_on_drop: false }`
[INFO] [stdout] 9a98f841ff4ed4c38e4bb525dae2bf7b5d2f3b1830fdcf04ad6076339bce74ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f70c4c9fe712aaff7c87177786c1c0c493d668c8478c2ad1f043f1b5e580793
[INFO] running `Command { std: "docker" "start" "-a" "9f70c4c9fe712aaff7c87177786c1c0c493d668c8478c2ad1f043f1b5e580793", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/day19.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let (rules, input) = contents.split("\n\n").collect_tuple().unwrap();
[INFO] [stderr]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `regex`
[INFO] [stderr]   --> src/day19.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let regex = create_regex(rules, 8);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_regex`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `regex`
[INFO] [stderr]   --> src/day19.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let regex = create_regex(rules, 11);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_regex`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day19.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut rule_map: HashMap<i32, &str> = rules.split("\n").map(|rule| {
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `aoc2020` (bin "aoc2020" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/aoc2020-023b87147af5056d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test day19::test_2 ... ok
[INFO] [stdout] test day19::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9f70c4c9fe712aaff7c87177786c1c0c493d668c8478c2ad1f043f1b5e580793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f70c4c9fe712aaff7c87177786c1c0c493d668c8478c2ad1f043f1b5e580793", kill_on_drop: false }`
[INFO] [stdout] 9f70c4c9fe712aaff7c87177786c1c0c493d668c8478c2ad1f043f1b5e580793