[INFO] cloning repository https://github.com/johnny88/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnny88/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnny88%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnny88%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc8d9c12e1b4cb3593741acc137d7bf4cf296504
[INFO] testing johnny88/aoc2020 against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnny88%2Faoc2020" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/johnny88/aoc2020
[INFO] finished tweaking git repo https://github.com/johnny88/aoc2020
[INFO] tweaked toml for git repo https://github.com/johnny88/aoc2020 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/johnny88/aoc2020 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/johnny88/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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93632f6e0cfefe2a34e803a511905c4386ae5036d6ef5c4ee7521fddba6516a7
[INFO] running `Command { std: "docker" "start" "-a" "93632f6e0cfefe2a34e803a511905c4386ae5036d6ef5c4ee7521fddba6516a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93632f6e0cfefe2a34e803a511905c4386ae5036d6ef5c4ee7521fddba6516a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93632f6e0cfefe2a34e803a511905c4386ae5036d6ef5c4ee7521fddba6516a7", kill_on_drop: false }`
[INFO] [stdout] 93632f6e0cfefe2a34e803a511905c4386ae5036d6ef5c4ee7521fddba6516a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c8bf5883fd9afbc9f2258cb556c43d2115c80124039d111dbb20799c067c311
[INFO] running `Command { std: "docker" "start" "-a" "1c8bf5883fd9afbc9f2258cb556c43d2115c80124039d111dbb20799c067c311", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling advent_of_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:142:48
[INFO] [stdout]     |
[INFO] [stdout] 142 |           byr:1937 iyr:2017 cid:147 hgt:183cm\n\n\
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 143 | |
[INFO] [stdout] 144 | |         iyr:2013 ecl:amb cid:350 eyr:2023 pid:028048884\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:145:33
[INFO] [stdout]     |
[INFO] [stdout] 145 |           hcl:#cfa07d byr:1929\n\n\
[INFO] [stdout]     |  _________________________________^
[INFO] [stdout] 146 | |
[INFO] [stdout] 147 | |         hcl:#ae17e1 iyr:2013\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:150:22
[INFO] [stdout]     |
[INFO] [stdout] 150 |           hgt:179cm\n\n\
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 151 | |
[INFO] [stdout] 152 | |         hcl:#cfa07d eyr:2025 pid:166559648\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:156:68
[INFO] [stdout]     |
[INFO] [stdout] 156 |           hcl:#18171d ecl:amb hgt:170 pid:186cm iyr:2018 byr:1926\n\n\
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |         iyr:2019\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:160:43
[INFO] [stdout]     |
[INFO] [stdout] 160 |           ecl:grn pid:012533040 byr:1946\n\n\
[INFO] [stdout]     |  ___________________________________________^
[INFO] [stdout] 161 | |
[INFO] [stdout] 162 | |         hcl:dab227 iyr:2012\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:163:70
[INFO] [stdout]     |
[INFO] [stdout] 163 |           ecl:brn hgt:182cm pid:021572410 eyr:2020 byr:1992 cid:277\n\n\
[INFO] [stdout]     |  ______________________________________________________________________^
[INFO] [stdout] 164 | |
[INFO] [stdout] 165 | |         hgt:59cm ecl:zzz\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:170:24
[INFO] [stdout]     |
[INFO] [stdout] 170 |           hcl:#623a2f\n\n\
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 171 | |
[INFO] [stdout] 172 | |         eyr:2029 ecl:blu cid:129 byr:1989\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:173:57
[INFO] [stdout]     |
[INFO] [stdout] 173 |           iyr:2014 pid:896056539 hcl:#a97842 hgt:165cm\n\n\
[INFO] [stdout]     |  _________________________________________________________^
[INFO] [stdout] 174 | |
[INFO] [stdout] 175 | |         hcl:#888785\n\
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/day04.rs:178:21
[INFO] [stdout]     |
[INFO] [stdout] 178 |           eyr:2022\n\n\
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 179 | |
[INFO] [stdout] 180 | |         iyr:2010 hgt:158cm hcl:#b6652a ecl:blu byr:1944 eyr:2021 pid:093154719\n\n";
[INFO] [stdout]     | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/day06.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |       const TEST_CASE_1: &str = "abc\n\n\
[INFO] [stdout]    |  _______________________________________^
[INFO] [stdout] 48 | |
[INFO] [stdout] 49 | |         a\n\
[INFO] [stdout]    | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/day06.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 51 |           c\n\n\
[INFO] [stdout]    |  ______________^
[INFO] [stdout] 52 | |
[INFO] [stdout] 53 | |         ab\n\
[INFO] [stdout]    | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/day06.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |           ac\n\n\
[INFO] [stdout]    |  _______________^
[INFO] [stdout] 55 | |
[INFO] [stdout] 56 | |         a\n\
[INFO] [stdout]    | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/day06.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |           a\n\n\
[INFO] [stdout]    |  ______________^
[INFO] [stdout] 60 | |
[INFO] [stdout] 61 | |         b\n";
[INFO] [stdout]    | |________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/day10.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |             1 => (acc += 1),
[INFO] [stdout]    |                  ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -             1 => (acc += 1),
[INFO] [stdout] 52 +             1 => acc += 1 ,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/day11.rs:122:54
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let acc = h.iter_mut().fold(0, |mut acc, (_, mut v)| {
[INFO] [stdout]     |                                                      ----^
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/day11.rs:221:36
[INFO] [stdout]     |
[INFO] [stdout] 221 |         h.iter_mut().for_each(|(_, mut v)| {
[INFO] [stdout]     |                                    ----^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `nll` has been stable since `1.63.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `nll` has been stable since 1.63.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent_of_code` (bin "advent_of_code") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1c8bf5883fd9afbc9f2258cb556c43d2115c80124039d111dbb20799c067c311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c8bf5883fd9afbc9f2258cb556c43d2115c80124039d111dbb20799c067c311", kill_on_drop: false }`
[INFO] [stdout] 1c8bf5883fd9afbc9f2258cb556c43d2115c80124039d111dbb20799c067c311
