[INFO] cloning repository https://github.com/rfuzzo/aoc2021-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rfuzzo/aoc2021-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfuzzo%2Faoc2021-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfuzzo%2Faoc2021-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c48a59a7814861b5083f1db58c159784407621c0
[INFO] checking rfuzzo/aoc2021-rs against master#9748d87dc70a9a6725c5dbd76ce29d04752b4f90 for pr-144156
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfuzzo%2Faoc2021-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rfuzzo/aoc2021-rs
[INFO] finished tweaking git repo https://github.com/rfuzzo/aoc2021-rs
[INFO] tweaked toml for git repo https://github.com/rfuzzo/aoc2021-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rfuzzo/aoc2021-rs on toolchain 9748d87dc70a9a6725c5dbd76ce29d04752b4f90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rfuzzo/aoc2021-rs 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" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 975e692f56721ad6a47360373e69e1364c0b42f9aab59f52ea688d357ccf5b56
[INFO] running `Command { std: "docker" "start" "-a" "975e692f56721ad6a47360373e69e1364c0b42f9aab59f52ea688d357ccf5b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "975e692f56721ad6a47360373e69e1364c0b42f9aab59f52ea688d357ccf5b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975e692f56721ad6a47360373e69e1364c0b42f9aab59f52ea688d357ccf5b56", kill_on_drop: false }`
[INFO] [stdout] 975e692f56721ad6a47360373e69e1364c0b42f9aab59f52ea688d357ccf5b56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 956c832df5f9015c3c8fe614a85a8661e13d5bd3e802779a22b7bd6d6a7c7072
[INFO] running `Command { std: "docker" "start" "-a" "956c832df5f9015c3c8fe614a85a8661e13d5bd3e802779a22b7bd6d6a7c7072", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc2021-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `mcv`
[INFO] [stdout]   --> src/adv3.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mcv = r.map(|x| if x < slices_count / 2 { 0 } else { 1 });
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_mcv`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lcv`
[INFO] [stdout]   --> src/adv3.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let lcv = r.map(|x| if x >= slices_count / 2 { 0 } else { 1 });
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_lcv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines` is never used
[INFO] [stdout]  --> src/common.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<fs::File>>>
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_as_vec` is never used
[INFO] [stdout]   --> src/common.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn read_as_vec<P>(filename: P) -> Vec<String>
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mcv`
[INFO] [stdout]   --> src/adv3.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mcv = r.map(|x| if x < slices_count / 2 { 0 } else { 1 });
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_mcv`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lcv`
[INFO] [stdout]   --> src/adv3.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let lcv = r.map(|x| if x >= slices_count / 2 { 0 } else { 1 });
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_lcv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines` is never used
[INFO] [stdout]  --> src/common.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<fs::File>>>
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_as_vec` is never used
[INFO] [stdout]   --> src/common.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn read_as_vec<P>(filename: P) -> Vec<String>
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "956c832df5f9015c3c8fe614a85a8661e13d5bd3e802779a22b7bd6d6a7c7072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956c832df5f9015c3c8fe614a85a8661e13d5bd3e802779a22b7bd6d6a7c7072", kill_on_drop: false }`
[INFO] [stdout] 956c832df5f9015c3c8fe614a85a8661e13d5bd3e802779a22b7bd6d6a7c7072