[INFO] cloning repository https://github.com/drola/AdventOfCode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drola/AdventOfCode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrola%2FAdventOfCode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrola%2FAdventOfCode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 414bc78326929401da21177d82303c4f366a95e4
[INFO] checking drola/AdventOfCode2021 against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrola%2FAdventOfCode2021" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/drola/AdventOfCode2021
[INFO] finished tweaking git repo https://github.com/drola/AdventOfCode2021
[INFO] tweaked toml for git repo https://github.com/drola/AdventOfCode2021 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/drola/AdventOfCode2021 on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/drola/AdventOfCode2021 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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a52f989c196a3fbd0ba38005e5e5764a89ea5c5dae6ac238f56287015f7cf964
[INFO] running `Command { std: "docker" "start" "-a" "a52f989c196a3fbd0ba38005e5e5764a89ea5c5dae6ac238f56287015f7cf964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a52f989c196a3fbd0ba38005e5e5764a89ea5c5dae6ac238f56287015f7cf964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52f989c196a3fbd0ba38005e5e5764a89ea5c5dae6ac238f56287015f7cf964", kill_on_drop: false }`
[INFO] [stdout] a52f989c196a3fbd0ba38005e5e5764a89ea5c5dae6ac238f56287015f7cf964
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c691d150b14d5d4dc2c543b10da53e153c5b775ef5d9e42183f17fd3b47aa6e0
[INFO] running `Command { std: "docker" "start" "-a" "c691d150b14d5d4dc2c543b10da53e153c5b775ef5d9e42183f17fd3b47aa6e0", kill_on_drop: false }`
[INFO] [stderr]     Checking advent_of_code_2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bin/day_16_packet_decoder.rs:32:6
[INFO] [stdout]    |
[INFO] [stdout] 32 | ) -> (impl std::iter::Iterator<Item = bool> + 'a) {
[INFO] [stdout]    |      ^                                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 - ) -> (impl std::iter::Iterator<Item = bool> + 'a) {
[INFO] [stdout] 32 + ) -> impl std::iter::Iterator<Item = bool> + 'a {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bin/day_16_packet_decoder.rs:32:6
[INFO] [stdout]    |
[INFO] [stdout] 32 | ) -> (impl std::iter::Iterator<Item = bool> + 'a) {
[INFO] [stdout]    |      ^                                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 - ) -> (impl std::iter::Iterator<Item = bool> + 'a) {
[INFO] [stdout] 32 + ) -> impl std::iter::Iterator<Item = bool> + 'a {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "c691d150b14d5d4dc2c543b10da53e153c5b775ef5d9e42183f17fd3b47aa6e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c691d150b14d5d4dc2c543b10da53e153c5b775ef5d9e42183f17fd3b47aa6e0", kill_on_drop: false }`
[INFO] [stdout] c691d150b14d5d4dc2c543b10da53e153c5b775ef5d9e42183f17fd3b47aa6e0