[INFO] cloning repository https://github.com/Deskbot/Advent-of-Code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Deskbot/Advent-of-Code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeskbot%2FAdvent-of-Code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeskbot%2FAdvent-of-Code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97d5a7e7e7f2a57ec64a5591688d1c2f5e90617d
[INFO] checking Deskbot/Advent-of-Code-2020 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeskbot%2FAdvent-of-Code-2020" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Deskbot/Advent-of-Code-2020 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Deskbot/Advent-of-Code-2020
[INFO] finished tweaking git repo https://github.com/Deskbot/Advent-of-Code-2020
[INFO] tweaked toml for git repo https://github.com/Deskbot/Advent-of-Code-2020 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Deskbot/Advent-of-Code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de4b31eb330456d76861463ea9478c874968a820a4d9e4fb686a637a8e262f39
[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" "de4b31eb330456d76861463ea9478c874968a820a4d9e4fb686a637a8e262f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de4b31eb330456d76861463ea9478c874968a820a4d9e4fb686a637a8e262f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4b31eb330456d76861463ea9478c874968a820a4d9e4fb686a637a8e262f39", kill_on_drop: false }`
[INFO] [stdout] de4b31eb330456d76861463ea9478c874968a820a4d9e4fb686a637a8e262f39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4fac29c05486b424f18a8722572fbe528282469e5238788949302a2b8a2b447
[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" "c4fac29c05486b424f18a8722572fbe528282469e5238788949302a2b8a2b447", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling substring v1.4.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/day/day23.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/day/day23.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/day/day22.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2`
[INFO] [stdout]   --> src/day/day22.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cups`
[INFO] [stdout]  --> src/day/day23.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(input);
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_cups`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/day/day22.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2`
[INFO] [stdout]   --> src/day/day22.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cups`
[INFO] [stdout]  --> src/day/day23.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(input);
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_cups`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day/day23.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(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: field is never read: `current_cup`
[INFO] [stdout]   --> src/day/day23.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     current_cup: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `list`
[INFO] [stdout]   --> src/day/day23.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     list: Vec<i64>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/day/day23.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn step(&mut self)  {
[INFO] [stdout]    |            ^^^^
[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/day/day23.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(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: field is never read: `current_cup`
[INFO] [stdout]   --> src/day/day23.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     current_cup: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `list`
[INFO] [stdout]   --> src/day/day23.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     list: Vec<i64>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/day/day23.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn step(&mut self)  {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.93s
[INFO] running `Command { std: "docker" "inspect" "c4fac29c05486b424f18a8722572fbe528282469e5238788949302a2b8a2b447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4fac29c05486b424f18a8722572fbe528282469e5238788949302a2b8a2b447", kill_on_drop: false }`
[INFO] [stdout] c4fac29c05486b424f18a8722572fbe528282469e5238788949302a2b8a2b447