[INFO] cloning repository https://github.com/pyaillet/aoc2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pyaillet/aoc2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpyaillet%2Faoc2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpyaillet%2Faoc2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e170ab0c228768b63fe24c291d74b430cf8b60b9
[INFO] testing pyaillet/aoc2021 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpyaillet%2Faoc2021" "/workspace/builds/worker-88/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-88/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pyaillet/aoc2021 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pyaillet/aoc2021
[INFO] finished tweaking git repo https://github.com/pyaillet/aoc2021
[INFO] tweaked toml for git repo https://github.com/pyaillet/aoc2021 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] crate git repo https://github.com/pyaillet/aoc2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35dc78aa8730733ac88d933569a4e3077d42263a359897bff99fda7f8f3b5911
[INFO] running `Command { std: "docker" "start" "-a" "35dc78aa8730733ac88d933569a4e3077d42263a359897bff99fda7f8f3b5911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35dc78aa8730733ac88d933569a4e3077d42263a359897bff99fda7f8f3b5911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35dc78aa8730733ac88d933569a4e3077d42263a359897bff99fda7f8f3b5911", kill_on_drop: false }`
[INFO] [stdout] 35dc78aa8730733ac88d933569a4e3077d42263a359897bff99fda7f8f3b5911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6669a563f7ce9c107dfc49c8d3480691a269dce9e2818340f2ff0a2468ae1e24
[INFO] running `Command { std: "docker" "start" "-a" "6669a563f7ce9c107dfc49c8d3480691a269dce9e2818340f2ff0a2468ae1e24", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling day_07_1 v0.1.0 (/opt/rustwide/workdir/day_07_1)
[INFO] [stderr]    Compiling day_06_1 v0.1.0 (/opt/rustwide/workdir/day_06_1)
[INFO] [stderr]    Compiling day_05_2 v0.1.0 (/opt/rustwide/workdir/day_05_2)
[INFO] [stderr]    Compiling day_05_1 v0.1.0 (/opt/rustwide/workdir/day_05_1)
[INFO] [stderr]    Compiling day_03_1 v0.1.0 (/opt/rustwide/workdir/day_03_1)
[INFO] [stderr]    Compiling day_07_2 v0.1.0 (/opt/rustwide/workdir/day_07_2)
[INFO] [stderr]    Compiling day_02_1 v0.1.0 (/opt/rustwide/workdir/day_02_1)
[INFO] [stderr]    Compiling day_03_2 v0.1.0 (/opt/rustwide/workdir/day_03_2)
[INFO] [stderr]    Compiling day_08_1 v0.1.0 (/opt/rustwide/workdir/day_08_1_2)
[INFO] [stderr]    Compiling day_02_2 v0.1.0 (/opt/rustwide/workdir/day_02_2)
[INFO] [stderr]    Compiling day_06_2 v0.1.0 (/opt/rustwide/workdir/day_06_2)
[INFO] [stdout] warning: function is never used: `best_align_position`
[INFO] [stdout]   --> day_07_2/src/main.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn best_align_position(crabs: &[usize]) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `average`
[INFO] [stdout]   --> day_07_2/src/main.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn average(numbers: &[usize]) -> usize {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `median`
[INFO] [stdout]   --> day_07_2/src/main.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn median(numbers: &[usize]) -> usize {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling day_01_1 v0.1.0 (/opt/rustwide/workdir/day_01_1)
[INFO] [stderr]    Compiling day_01_2 v0.1.0 (/opt/rustwide/workdir/day_01_2)
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.5.4/src/lib.rs:609:42
[INFO] [stdout]     |
[INFO] [stdout] 609 | #![cfg_attr(feature = "pattern", feature(pattern))]
[INFO] [stdout]     |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6669a563f7ce9c107dfc49c8d3480691a269dce9e2818340f2ff0a2468ae1e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6669a563f7ce9c107dfc49c8d3480691a269dce9e2818340f2ff0a2468ae1e24", kill_on_drop: false }`
[INFO] [stdout] 6669a563f7ce9c107dfc49c8d3480691a269dce9e2818340f2ff0a2468ae1e24