[INFO] cloning repository https://github.com/ethereal-sheep/AdventOfCode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethereal-sheep/AdventOfCode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethereal-sheep%2FAdventOfCode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethereal-sheep%2FAdventOfCode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5fdd9f2b902fcfc5c28976b7c2db51be813bd7c6
[INFO] checking ethereal-sheep/AdventOfCode2021 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethereal-sheep%2FAdventOfCode2021" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethereal-sheep/AdventOfCode2021 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ethereal-sheep/AdventOfCode2021
[INFO] finished tweaking git repo https://github.com/ethereal-sheep/AdventOfCode2021
[INFO] tweaked toml for git repo https://github.com/ethereal-sheep/AdventOfCode2021 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ethereal-sheep/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wyz v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78f49248e71dc9caedf8c4f7434598e8187cd3d082244f6e09f35d56aa6089fe
[INFO] running `Command { std: "docker" "start" "-a" "78f49248e71dc9caedf8c4f7434598e8187cd3d082244f6e09f35d56aa6089fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78f49248e71dc9caedf8c4f7434598e8187cd3d082244f6e09f35d56aa6089fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78f49248e71dc9caedf8c4f7434598e8187cd3d082244f6e09f35d56aa6089fe", kill_on_drop: false }`
[INFO] [stdout] 78f49248e71dc9caedf8c4f7434598e8187cd3d082244f6e09f35d56aa6089fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d743819cd22103517828e2268e52e7bf709afe4dc30920bc3c86e75a17f35acd
[INFO] running `Command { std: "docker" "start" "-a" "d743819cd22103517828e2268e52e7bf709afe4dc30920bc3c86e75a17f35acd", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking day09b v0.1.0 (/opt/rustwide/workdir/day09b)
[INFO] [stderr]     Checking day01a v0.1.0 (/opt/rustwide/workdir/day01a)
[INFO] [stderr]     Checking day07a v0.1.0 (/opt/rustwide/workdir/day07a)
[INFO] [stderr]     Checking day02b v0.1.0 (/opt/rustwide/workdir/day02b)
[INFO] [stderr]     Checking day03b v0.1.0 (/opt/rustwide/workdir/day03b)
[INFO] [stderr]     Checking day12a v0.1.0 (/opt/rustwide/workdir/day12a)
[INFO] [stderr]     Checking day10a v0.1.0 (/opt/rustwide/workdir/day10a)
[INFO] [stderr]     Checking day12b v0.1.0 (/opt/rustwide/workdir/day12b)
[INFO] [stderr]     Checking day07b v0.1.0 (/opt/rustwide/workdir/day07b)
[INFO] [stderr]     Checking day06a v0.1.0 (/opt/rustwide/workdir/day06a)
[INFO] [stderr]     Checking day05b v0.1.0 (/opt/rustwide/workdir/day05b)
[INFO] [stderr]     Checking wyz v0.5.0
[INFO] [stderr]     Checking day11a v0.1.0 (/opt/rustwide/workdir/day11a)
[INFO] [stderr]     Checking day04b v0.1.0 (/opt/rustwide/workdir/day04b)
[INFO] [stderr]     Checking day04a v0.1.0 (/opt/rustwide/workdir/day04a)
[INFO] [stderr]     Checking day10b v0.1.0 (/opt/rustwide/workdir/day10b)
[INFO] [stderr]     Checking day09a v0.0.0 (/opt/rustwide/workdir/day09a)
[INFO] [stderr]     Checking day13a v0.1.0 (/opt/rustwide/workdir/day13a)
[INFO] [stderr]     Checking day08a v0.1.0 (/opt/rustwide/workdir/day08a)
[INFO] [stderr]     Checking day05a v0.1.0 (/opt/rustwide/workdir/day05a)
[INFO] [stderr]     Checking day06b v0.1.0 (/opt/rustwide/workdir/day06b)
[INFO] [stderr]     Checking day01b v0.1.0 (/opt/rustwide/workdir/day01b)
[INFO] [stderr]     Checking day03a v0.1.0 (/opt/rustwide/workdir/day03a)
[INFO] [stderr]     Checking day13b v0.1.0 (/opt/rustwide/workdir/day13b)
[INFO] [stderr]     Checking day11b v0.1.0 (/opt/rustwide/workdir/day11b)
[INFO] [stderr]     Checking day02a v0.1.0 (/opt/rustwide/workdir/day02a)
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking day08b v0.1.0 (/opt/rustwide/workdir/day08b)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "d743819cd22103517828e2268e52e7bf709afe4dc30920bc3c86e75a17f35acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d743819cd22103517828e2268e52e7bf709afe4dc30920bc3c86e75a17f35acd", kill_on_drop: false }`
[INFO] [stdout] d743819cd22103517828e2268e52e7bf709afe4dc30920bc3c86e75a17f35acd