[INFO] cloning repository https://github.com/guilgaly/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/guilgaly/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguilgaly%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguilgaly%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12ed35072eb6f5d5e8eaba70ae34c7d8f192961f
[INFO] checking guilgaly/advent-of-code-2020 against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguilgaly%2Fadvent-of-code-2020" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guilgaly/advent-of-code-2020 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/guilgaly/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/guilgaly/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/guilgaly/advent-of-code-2020 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/guilgaly/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded intmap v0.7.0
[INFO] [stderr]   Downloaded peg-macros v0.6.3
[INFO] [stderr]   Downloaded peg-runtime v0.6.3
[INFO] [stderr]   Downloaded peg v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 637ceb6b4b5064a41a942f4508be7b1545ae209b8ad78223bac879e98b55e401
[INFO] running `Command { std: "docker" "start" "-a" "637ceb6b4b5064a41a942f4508be7b1545ae209b8ad78223bac879e98b55e401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "637ceb6b4b5064a41a942f4508be7b1545ae209b8ad78223bac879e98b55e401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "637ceb6b4b5064a41a942f4508be7b1545ae209b8ad78223bac879e98b55e401", kill_on_drop: false }`
[INFO] [stdout] 637ceb6b4b5064a41a942f4508be7b1545ae209b8ad78223bac879e98b55e401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d38b6c8db287c4189a13d6bcd01f661ed35bc55b2d15ba3c40aad2de88f8a350
[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" "d38b6c8db287c4189a13d6bcd01f661ed35bc55b2d15ba3c40aad2de88f8a350", kill_on_drop: false }`
[INFO] [stderr]     Checking reduce v0.1.3
[INFO] [stderr]     Checking intmap v0.7.0
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]     Checking day_5 v0.1.0 (/opt/rustwide/workdir/day_5)
[INFO] [stderr]     Checking day_20 v0.1.0 (/opt/rustwide/workdir/day_20)
[INFO] [stderr]     Checking day_19 v0.1.0 (/opt/rustwide/workdir/day_19)
[INFO] [stderr]     Checking day_8 v0.1.0 (/opt/rustwide/workdir/day_8)
[INFO] [stderr]     Checking day_4 v0.1.0 (/opt/rustwide/workdir/day_4)
[INFO] [stderr]     Checking day_24 v0.1.0 (/opt/rustwide/workdir/day_24)
[INFO] [stderr]     Checking day_2 v0.1.0 (/opt/rustwide/workdir/day_2)
[INFO] [stderr]     Checking day_11 v0.1.0 (/opt/rustwide/workdir/day_11)
[INFO] [stderr]     Checking day_23 v0.1.0 (/opt/rustwide/workdir/day_23)
[INFO] [stderr]     Checking day_16 v0.1.0 (/opt/rustwide/workdir/day_16)
[INFO] [stderr]     Checking day_12 v0.1.0 (/opt/rustwide/workdir/day_12)
[INFO] [stderr]     Checking day_9 v0.1.0 (/opt/rustwide/workdir/day_9)
[INFO] [stderr]     Checking day_13 v0.1.0 (/opt/rustwide/workdir/day_13)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> day_19/src/main.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     use super::*;
[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]  --> day_23/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> day_13/src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let N = busses.iter().map(|(_, id)| id).product::<i64>();
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Ni` should have a snake case name
[INFO] [stdout]   --> day_13/src/main.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let Ni = N / id;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `ni`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day_6 v0.1.0 (/opt/rustwide/workdir/day_6)
[INFO] [stderr]     Checking day_15 v0.1.0 (/opt/rustwide/workdir/day_15)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day_22 v0.1.0 (/opt/rustwide/workdir/day_22)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> day_24/src/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | 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 import: `super::*`
[INFO] [stdout]    --> day_24/src/main.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day_10 v0.1.0 (/opt/rustwide/workdir/day_10)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day_7 v0.1.0 (/opt/rustwide/workdir/day_7)
[INFO] [stdout] warning: static is never used: `TEST_INPUT`
[INFO] [stdout]  --> day_24/src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | static TEST_INPUT: &str = include_str!("test_input");
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day_17 v0.1.0 (/opt/rustwide/workdir/day_17)
[INFO] [stderr]     Checking day_25 v0.1.0 (/opt/rustwide/workdir/day_25)
[INFO] [stderr]     Checking day_14 v0.1.0 (/opt/rustwide/workdir/day_14)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> day_6/src/main.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 .reduce(|acc, next| acc.intersection(&next).copied().collect())
[INFO] [stdout]    |                  ^^^^^^ multiple `reduce` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 24 ~             Iterator::reduce(group
[INFO] [stdout] 25 +                 .lines()
[INFO] [stdout] 26 +                 .map(|line| line.chars().collect::<HashSet<char>>()), |acc, next| acc.intersection(&next).copied().collect())
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 24 ~             Reduce::reduce(group
[INFO] [stdout] 25 +                 .lines()
[INFO] [stdout] 26 +                 .map(|line| line.chars().collect::<HashSet<char>>()), |acc, next| acc.intersection(&next).copied().collect())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::reduce::Reduce`
[INFO] [stdout]  --> day_6/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use common::reduce::Reduce;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> day_20/src/main.rs:7:36
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::{Display, Formatter, Write};
[INFO] [stdout]   |                                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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 E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `day_6` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: static is never used: `TEST_INPUT`
[INFO] [stdout]   --> day_20/src/main.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | static TEST_INPUT: &str = include_str!("test_input");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> day_6/src/main.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 .reduce(|acc, next| acc.intersection(&next).copied().collect())
[INFO] [stdout]    |                  ^^^^^^ multiple `reduce` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 24 ~             Iterator::reduce(group
[INFO] [stdout] 25 +                 .lines()
[INFO] [stdout] 26 +                 .map(|line| line.chars().collect::<HashSet<char>>()), |acc, next| acc.intersection(&next).copied().collect())
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 24 ~             Reduce::reduce(group
[INFO] [stdout] 25 +                 .lines()
[INFO] [stdout] 26 +                 .map(|line| line.chars().collect::<HashSet<char>>()), |acc, next| acc.intersection(&next).copied().collect())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::reduce::Reduce`
[INFO] [stdout]  --> day_6/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use common::reduce::Reduce;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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 E0034`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> day_23/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | 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: `super::*`
[INFO] [stdout]   --> day_23/src/main.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> day_13/src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let N = busses.iter().map(|(_, id)| id).product::<i64>();
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Ni` should have a snake case name
[INFO] [stdout]   --> day_13/src/main.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let Ni = N / id;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `ni`
[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: unused import: `super::*`
[INFO] [stdout]   --> day_25/src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use super::*;
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d38b6c8db287c4189a13d6bcd01f661ed35bc55b2d15ba3c40aad2de88f8a350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38b6c8db287c4189a13d6bcd01f661ed35bc55b2d15ba3c40aad2de88f8a350", kill_on_drop: false }`
[INFO] [stdout] d38b6c8db287c4189a13d6bcd01f661ed35bc55b2d15ba3c40aad2de88f8a350
