[INFO] cloning repository https://github.com/prscoelho/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prscoelho/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprscoelho%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprscoelho%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5c03411bda9963ef5d1dba5a43e13d9d63fc022
[INFO] checking prscoelho/aoc2020 against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprscoelho%2Faoc2020" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/prscoelho/aoc2020
[INFO] finished tweaking git repo https://github.com/prscoelho/aoc2020
[INFO] tweaked toml for git repo https://github.com/prscoelho/aoc2020 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/prscoelho/aoc2020 on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/prscoelho/aoc2020 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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14439f9ecc36eb9c15167928793f26e89c5eeacaacbd595c59c881f8d347d5ff
[INFO] running `Command { std: "docker" "start" "-a" "14439f9ecc36eb9c15167928793f26e89c5eeacaacbd595c59c881f8d347d5ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14439f9ecc36eb9c15167928793f26e89c5eeacaacbd595c59c881f8d347d5ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14439f9ecc36eb9c15167928793f26e89c5eeacaacbd595c59c881f8d347d5ff", kill_on_drop: false }`
[INFO] [stdout] 14439f9ecc36eb9c15167928793f26e89c5eeacaacbd595c59c881f8d347d5ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c562f5e71da91ddfdf921db7bf28a4de0656165e7ad78ba39f395052fe71184
[INFO] running `Command { std: "docker" "start" "-a" "2c562f5e71da91ddfdf921db7bf28a4de0656165e7ad78ba39f395052fe71184", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `day01::part1`
[INFO] [stdout]  --> src/day01/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day01::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day01::part2`
[INFO] [stdout]  --> src/day01/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day01::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day02::part1`
[INFO] [stdout]  --> src/day02/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day02::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day02::part2`
[INFO] [stdout]  --> src/day02/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day02::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day03::part1`
[INFO] [stdout]  --> src/day03/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day03::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day03::part2`
[INFO] [stdout]  --> src/day03/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day03::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day04::part1`
[INFO] [stdout]  --> src/day04/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day04::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day04::part2`
[INFO] [stdout]  --> src/day04/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day04::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day05::part1`
[INFO] [stdout]  --> src/day05/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day05::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day05::part2`
[INFO] [stdout]  --> src/day05/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day05::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day06::part1`
[INFO] [stdout]  --> src/day06/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day06::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day06::part2`
[INFO] [stdout]  --> src/day06/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day06::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day07::part1`
[INFO] [stdout]  --> src/day07/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day07::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day07::part2`
[INFO] [stdout]  --> src/day07/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day07::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day08::part1`
[INFO] [stdout]  --> src/day08/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day08::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day08::part2`
[INFO] [stdout]  --> src/day08/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day08::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day09::part1`
[INFO] [stdout]  --> src/day09/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day09::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day09::part2`
[INFO] [stdout]  --> src/day09/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day09::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day10::part1`
[INFO] [stdout]  --> src/day10/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day10::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day10::part2`
[INFO] [stdout]  --> src/day10/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day10::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day11::part1`
[INFO] [stdout]  --> src/day11/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day11::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day11::part2`
[INFO] [stdout]  --> src/day11/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day11::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day12::part1`
[INFO] [stdout]  --> src/day12/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day12::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day12::part2`
[INFO] [stdout]  --> src/day12/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day12::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day13::part1`
[INFO] [stdout]  --> src/day13/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day13::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day13::part2`
[INFO] [stdout]  --> src/day13/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day13::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day14::part1`
[INFO] [stdout]  --> src/day14/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day14::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day14::part2`
[INFO] [stdout]  --> src/day14/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day14::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day15::part1`
[INFO] [stdout]  --> src/day15/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day15::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day15::part2`
[INFO] [stdout]  --> src/day15/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day15::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day16::part1`
[INFO] [stdout]  --> src/day16/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day16::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day16::part2`
[INFO] [stdout]  --> src/day16/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day16::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day17::part1`
[INFO] [stdout]  --> src/day17/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day17::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day17::part2`
[INFO] [stdout]  --> src/day17/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day17::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day18::part1`
[INFO] [stdout]  --> src/day18/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day18::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day18::part2`
[INFO] [stdout]  --> src/day18/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day18::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day19::part1`
[INFO] [stdout]  --> src/day19/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day19::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day19::part2`
[INFO] [stdout]  --> src/day19/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day19::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day20::part1`
[INFO] [stdout]  --> src/day20/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day20::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day20::part2`
[INFO] [stdout]  --> src/day20/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day20::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day21::part1`
[INFO] [stdout]  --> src/day21/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day21::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day21::part2`
[INFO] [stdout]  --> src/day21/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day21::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day22::part1`
[INFO] [stdout]  --> src/day22/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day22::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day22::part2`
[INFO] [stdout]  --> src/day22/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day22::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day23::part1`
[INFO] [stdout]  --> src/day23/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day23::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day23::part2`
[INFO] [stdout]  --> src/day23/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day23::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day24::part1`
[INFO] [stdout]  --> src/day24/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day24::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day24::part2`
[INFO] [stdout]  --> src/day24/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day24::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `str_split_once` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(str_split_once)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `hash_drain_filter`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(hash_drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day01::part1`
[INFO] [stdout]  --> src/day01/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day01::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day01::part2`
[INFO] [stdout]  --> src/day01/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day01::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day02::part1`
[INFO] [stdout]  --> src/day02/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day02::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day02::part2`
[INFO] [stdout]  --> src/day02/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day02::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day03::part1`
[INFO] [stdout]  --> src/day03/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day03::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day03::part2`
[INFO] [stdout]  --> src/day03/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day03::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day04::part1`
[INFO] [stdout]  --> src/day04/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day04::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day04::part2`
[INFO] [stdout]  --> src/day04/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day04::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day05::part1`
[INFO] [stdout]  --> src/day05/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day05::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day05::part2`
[INFO] [stdout]  --> src/day05/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day05::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day06::part1`
[INFO] [stdout]  --> src/day06/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day06::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day06::part2`
[INFO] [stdout]  --> src/day06/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day06::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day07::part1`
[INFO] [stdout]  --> src/day07/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day07::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day07::part2`
[INFO] [stdout]  --> src/day07/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day07::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day08::part1`
[INFO] [stdout]  --> src/day08/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day08::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day08::part2`
[INFO] [stdout]  --> src/day08/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day08::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day09::part1`
[INFO] [stdout]  --> src/day09/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day09::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day09::part2`
[INFO] [stdout]  --> src/day09/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day09::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day10::part1`
[INFO] [stdout]  --> src/day10/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day10::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day10::part2`
[INFO] [stdout]  --> src/day10/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day10::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day11::part1`
[INFO] [stdout]  --> src/day11/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day11::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day11::part2`
[INFO] [stdout]  --> src/day11/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day11::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day12::part1`
[INFO] [stdout]  --> src/day12/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day12::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day12::part2`
[INFO] [stdout]  --> src/day12/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day12::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day13::part1`
[INFO] [stdout]  --> src/day13/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day13::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day13::part2`
[INFO] [stdout]  --> src/day13/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day13::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day14::part1`
[INFO] [stdout]  --> src/day14/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day14::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day14::part2`
[INFO] [stdout]  --> src/day14/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day14::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day15::part1`
[INFO] [stdout]  --> src/day15/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day15::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day15::part2`
[INFO] [stdout]  --> src/day15/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day15::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day16::part1`
[INFO] [stdout]  --> src/day16/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day16::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day16::part2`
[INFO] [stdout]  --> src/day16/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day16::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day17::part1`
[INFO] [stdout]  --> src/day17/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day17::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day17::part2`
[INFO] [stdout]  --> src/day17/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day17::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day18::part1`
[INFO] [stdout]  --> src/day18/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day18::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day18::part2`
[INFO] [stdout]  --> src/day18/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day18::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day19::part1`
[INFO] [stdout]  --> src/day19/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day19::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day19::part2`
[INFO] [stdout]  --> src/day19/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day19::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day20::part1`
[INFO] [stdout]  --> src/day20/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day20::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day20::part2`
[INFO] [stdout]  --> src/day20/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day20::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day21::part1`
[INFO] [stdout]  --> src/day21/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day21::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day21::part2`
[INFO] [stdout]  --> src/day21/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day21::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day22::part1`
[INFO] [stdout]  --> src/day22/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day22::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day22::part2`
[INFO] [stdout]  --> src/day22/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day22::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day23::part1`
[INFO] [stdout]  --> src/day23/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day23::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day23::part2`
[INFO] [stdout]  --> src/day23/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day23::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day24::part1`
[INFO] [stdout]  --> src/day24/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use day24::part1;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `day24::part2`
[INFO] [stdout]  --> src/day24/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use day24::part2;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `str_split_once` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(str_split_once)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `hash_drain_filter`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(hash_drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `HashMap<K, V, S>` in the current scope
[INFO] [stdout]    --> src/day16/day16.rs:122:36
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let definite: Vec<_> = map.drain_filter(|_, v| v.len() == 1).collect();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^ method not found in `HashMap<String, HashSet<usize>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/day16/day16.rs:122:53
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let definite: Vec<_> = map.drain_filter(|_, v| v.len() == 1).collect();
[INFO] [stdout]     |                                                     ^  - type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let definite: Vec<_> = map.drain_filter(|_, v: /* Type */| v.len() == 1).collect();
[INFO] [stdout]     |                                                      ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/day16/day16.rs:124:28
[INFO] [stdout]     |
[INFO] [stdout] 124 |             let finished = v.into_iter().next().unwrap();
[INFO] [stdout]     |                            ^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `(_, _)`
[INFO] [stdout]    --> src/day16/day16.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |         .filter(|(name, _)| name.starts_with("departure"))
[INFO] [stdout]     |                  ^^^^^^^^^  ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 136 |         .filter(|(name, _): (_, _)| name.starts_with("departure"))
[INFO] [stdout]     |                           ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `HashMap<K, V, S>` in the current scope
[INFO] [stdout]    --> src/day16/day16.rs:122:36
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let definite: Vec<_> = map.drain_filter(|_, v| v.len() == 1).collect();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^ method not found in `HashMap<String, HashSet<usize>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/day16/day16.rs:122:53
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let definite: Vec<_> = map.drain_filter(|_, v| v.len() == 1).collect();
[INFO] [stdout]     |                                                     ^  - type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let definite: Vec<_> = map.drain_filter(|_, v: /* Type */| v.len() == 1).collect();
[INFO] [stdout]     |                                                      ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/day16/day16.rs:124:28
[INFO] [stdout]     |
[INFO] [stdout] 124 |             let finished = v.into_iter().next().unwrap();
[INFO] [stdout]     |                            ^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `(_, _)`
[INFO] [stdout]    --> src/day16/day16.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |         .filter(|(name, _)| name.starts_with("departure"))
[INFO] [stdout]     |                  ^^^^^^^^^  ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 136 |         .filter(|(name, _): (_, _)| name.starts_with("departure"))
[INFO] [stdout]     |                           ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2020` (bin "aoc2020") due to 6 previous errors; 49 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0282, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2020` (bin "aoc2020" test) due to 6 previous errors; 49 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2c562f5e71da91ddfdf921db7bf28a4de0656165e7ad78ba39f395052fe71184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c562f5e71da91ddfdf921db7bf28a4de0656165e7ad78ba39f395052fe71184", kill_on_drop: false }`
[INFO] [stdout] 2c562f5e71da91ddfdf921db7bf28a4de0656165e7ad78ba39f395052fe71184