[INFO] cloning repository https://github.com/jmattfield/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmattfield/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmattfield%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmattfield%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30906adf4a6fbaa906b94a0e35501ac1a424b7cb
[INFO] testing jmattfield/aoc2020 against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmattfield%2Faoc2020" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmattfield/aoc2020 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmattfield/aoc2020
[INFO] finished tweaking git repo https://github.com/jmattfield/aoc2020
[INFO] tweaked toml for git repo https://github.com/jmattfield/aoc2020 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/jmattfield/aoc2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f380b977107c3f2e326f068bf045145b514e26f8e5a31a1a38a14e78280978a5
[INFO] running `Command { std: "docker" "start" "-a" "f380b977107c3f2e326f068bf045145b514e26f8e5a31a1a38a14e78280978a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f380b977107c3f2e326f068bf045145b514e26f8e5a31a1a38a14e78280978a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f380b977107c3f2e326f068bf045145b514e26f8e5a31a1a38a14e78280978a5", kill_on_drop: false }`
[INFO] [stdout] f380b977107c3f2e326f068bf045145b514e26f8e5a31a1a38a14e78280978a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a13aafc123f792ad0660c6fac8b52f4c5817238e99653c1b759b549df5c5f74
[INFO] running `Command { std: "docker" "start" "-a" "8a13aafc123f792ad0660c6fac8b52f4c5817238e99653c1b759b549df5c5f74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/days/day_21.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: unused variable: `intersection`
[INFO] [stdout]   --> src/days/day_21.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut intersection: HashSet<String> = HashSet::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[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]   --> src/days/day_21.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut remaining_allergens: HashSet<String> = foods
[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]   --> src/days/day_21.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut intersection: HashSet<String> = HashSet::new();
[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]   --> src/days/day_21.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut result = HashSet::new();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_input`
[INFO] [stdout]   --> src/days/day_21.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn parse_input(data: &[&str]) -> Result<Vec<Food>, 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: `find_foods_without_allergens`
[INFO] [stdout]   --> src/days/day_21.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn find_foods_without_allergens(foods: Vec<Food>) -> HashSet<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Filter` that must be used
[INFO] [stdout]   --> src/days/day_21.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 | /             remaining_foods
[INFO] [stdout] 75 | |                 .iter_mut()
[INFO] [stdout] 76 | |                 .filter(|f| f.allergens.contains(&allergen));
[INFO] [stdout]    | |_____________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.18s
[INFO] running `Command { std: "docker" "inspect" "8a13aafc123f792ad0660c6fac8b52f4c5817238e99653c1b759b549df5c5f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a13aafc123f792ad0660c6fac8b52f4c5817238e99653c1b759b549df5c5f74", kill_on_drop: false }`
[INFO] [stdout] 8a13aafc123f792ad0660c6fac8b52f4c5817238e99653c1b759b549df5c5f74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1909ca5701684adaad4fb7575e5bb08349f10612da9d540d7586adea18e5341b
[INFO] running `Command { std: "docker" "start" "-a" "1909ca5701684adaad4fb7575e5bb08349f10612da9d540d7586adea18e5341b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/days/day_21.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] error[E0308]: mismatched types
[INFO] [stdout]    --> src/days/day_21.rs:124:59
[INFO] [stdout]     |
[INFO] [stdout] 124 |         assert_eq!(expected, find_foods_without_allergens(&foods));
[INFO] [stdout]     |                                                           ^^^^^^
[INFO] [stdout]     |                                                           |
[INFO] [stdout]     |                                                           expected struct `Vec`, found reference
[INFO] [stdout]     |                                                           help: consider removing the borrow: `foods`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Vec<day_21::Food>`
[INFO] [stdout]             found reference `&Vec<day_21::Food>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2020`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1909ca5701684adaad4fb7575e5bb08349f10612da9d540d7586adea18e5341b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1909ca5701684adaad4fb7575e5bb08349f10612da9d540d7586adea18e5341b", kill_on_drop: false }`
[INFO] [stdout] 1909ca5701684adaad4fb7575e5bb08349f10612da9d540d7586adea18e5341b
