[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 master#826b673412d2f579e7865b6f26bc9771c6d3b097 for pr-133397
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguilgaly%2Fadvent-of-code-2020" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guilgaly/advent-of-code-2020 on toolchain 826b673412d2f579e7865b6f26bc9771c6d3b097
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "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-2-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded intmap v0.7.0
[INFO] [stderr]   Downloaded peg v0.6.3
[INFO] [stderr]   Downloaded peg-runtime v0.6.3
[INFO] [stderr]   Downloaded peg-macros v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 336aa06684c9a5f000ab6326e979aaa3274dd4897b6c4484828985a45dc601a2
[INFO] running `Command { std: "docker" "start" "-a" "336aa06684c9a5f000ab6326e979aaa3274dd4897b6c4484828985a45dc601a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "336aa06684c9a5f000ab6326e979aaa3274dd4897b6c4484828985a45dc601a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "336aa06684c9a5f000ab6326e979aaa3274dd4897b6c4484828985a45dc601a2", kill_on_drop: false }`
[INFO] [stdout] 336aa06684c9a5f000ab6326e979aaa3274dd4897b6c4484828985a45dc601a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 637bf72dc07e6e0d30d7e1131e6d94d5fd0a72eb5a2fc4d3ad6b20625081e6b3
[INFO] running `Command { std: "docker" "start" "-a" "637bf72dc07e6e0d30d7e1131e6d94d5fd0a72eb5a2fc4d3ad6b20625081e6b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking reduce v0.1.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]     Checking intmap v0.7.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking peg v0.6.3
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]     Checking day_12 v0.1.0 (/opt/rustwide/workdir/day_12)
[INFO] [stderr]     Checking day_10 v0.1.0 (/opt/rustwide/workdir/day_10)
[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_4 v0.1.0 (/opt/rustwide/workdir/day_4)
[INFO] [stderr]     Checking day_15 v0.1.0 (/opt/rustwide/workdir/day_15)
[INFO] [stderr]     Checking day_5 v0.1.0 (/opt/rustwide/workdir/day_5)
[INFO] [stderr]     Checking day_24 v0.1.0 (/opt/rustwide/workdir/day_24)
[INFO] [stderr]     Checking day_16 v0.1.0 (/opt/rustwide/workdir/day_16)
[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] [stderr]     Checking day_22 v0.1.0 (/opt/rustwide/workdir/day_22)
[INFO] [stderr]     Checking day_23 v0.1.0 (/opt/rustwide/workdir/day_23)
[INFO] [stderr]     Checking day_11 v0.1.0 (/opt/rustwide/workdir/day_11)
[INFO] [stdout] warning: field `cid` is never read
[INFO] [stdout]   --> day_4/src/document.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Document {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub cid: Option<String>, // Country ID
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Document` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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: 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: static `TEST_INPUT` is never used
[INFO] [stdout]  --> day_24/src/main.rs:5:8
[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] [stderr]     Checking day_19 v0.1.0 (/opt/rustwide/workdir/day_19)
[INFO] [stderr]     Checking day_20 v0.1.0 (/opt/rustwide/workdir/day_20)
[INFO] [stderr]     Checking day_18 v0.1.0 (/opt/rustwide/workdir/day_18)
[INFO] [stderr]     Checking day_2 v0.1.0 (/opt/rustwide/workdir/day_2)
[INFO] [stderr]     Checking day_7 v0.1.0 (/opt/rustwide/workdir/day_7)
[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: `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: `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] [stderr]     Checking day_6 v0.1.0 (/opt/rustwide/workdir/day_6)
[INFO] [stderr]     Checking day_21 v0.1.0 (/opt/rustwide/workdir/day_21)
[INFO] [stderr]     Checking day_3 v0.1.0 (/opt/rustwide/workdir/day_3)
[INFO] [stdout] warning: static `TEST_INPUT` is never used
[INFO] [stdout]   --> day_20/src/main.rs:11:8
[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: 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] 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 `Reduce` for the type `I`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout] help: disambiguate the method for candidate #1
[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] help: disambiguate the method for candidate #2
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `all`
[INFO] [stdout]  --> day_21/src/main.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::itertools::{all, Itertools};
[INFO] [stdout]   |                         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::reduce::Reduce`
[INFO] [stdout]  --> day_21/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::reduce::Reduce;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[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] [stderr] error: could not compile `day_6` (bin "day_6") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `cid` is never read
[INFO] [stdout]   --> day_4/src/document.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Document {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub cid: Option<String>, // Country ID
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Document` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> day_21/src/main.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |         .sorted_by_key(|(a, i)| a)
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> day_21/src/main.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 79 |         .map(|(a, i)| i)
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "637bf72dc07e6e0d30d7e1131e6d94d5fd0a72eb5a2fc4d3ad6b20625081e6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "637bf72dc07e6e0d30d7e1131e6d94d5fd0a72eb5a2fc4d3ad6b20625081e6b3", kill_on_drop: false }`
[INFO] [stdout] 637bf72dc07e6e0d30d7e1131e6d94d5fd0a72eb5a2fc4d3ad6b20625081e6b3