[INFO] cloning repository https://github.com/iwolterstorff/aoc21
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iwolterstorff/aoc21" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwolterstorff%2Faoc21", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwolterstorff%2Faoc21'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b197938672dc35a6dd12732713be45c08d6ef243
[INFO] checking iwolterstorff/aoc21 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwolterstorff%2Faoc21" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iwolterstorff/aoc21
[INFO] finished tweaking git repo https://github.com/iwolterstorff/aoc21
[INFO] tweaked toml for git repo https://github.com/iwolterstorff/aoc21 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iwolterstorff/aoc21 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iwolterstorff/aoc21 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5150593d57fee7a4ea7684651aa92aec97e512f2fe8cba9c510edb46055f6f67
[INFO] running `Command { std: "docker" "start" "-a" "5150593d57fee7a4ea7684651aa92aec97e512f2fe8cba9c510edb46055f6f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5150593d57fee7a4ea7684651aa92aec97e512f2fe8cba9c510edb46055f6f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5150593d57fee7a4ea7684651aa92aec97e512f2fe8cba9c510edb46055f6f67", kill_on_drop: false }`
[INFO] [stdout] 5150593d57fee7a4ea7684651aa92aec97e512f2fe8cba9c510edb46055f6f67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92352057b8727e62b1999a6f56622bd410039f03b59417acdaf0ab1a09597432
[INFO] running `Command { std: "docker" "start" "-a" "92352057b8727e62b1999a6f56622bd410039f03b59417acdaf0ab1a09597432", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking aoc21 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `nth_char_in_strings` is never used
[INFO] [stdout]   --> src/days/day_three.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn nth_char_in_strings(strings: Vec<&str>, n: usize) -> Vec<char> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `oxygen_co2_product` is never used
[INFO] [stdout]   --> src/days/day_three.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn oxygen_co2_product(input: Vec<String>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_key_value` is never used
[INFO] [stdout]   --> src/days/day_three.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn find_key_value(mut input: Vec<String>, mut most_common: Vec<char>, find_co2: bool) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "92352057b8727e62b1999a6f56622bd410039f03b59417acdaf0ab1a09597432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92352057b8727e62b1999a6f56622bd410039f03b59417acdaf0ab1a09597432", kill_on_drop: false }`
[INFO] [stdout] 92352057b8727e62b1999a6f56622bd410039f03b59417acdaf0ab1a09597432