[INFO] cloning repository https://github.com/Ben-Wormald/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ben-Wormald/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBen-Wormald%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBen-Wormald%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd45da2b0c263800563af268b7c9b87759ca1954
[INFO] checking Ben-Wormald/advent-of-code-2020 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBen-Wormald%2Fadvent-of-code-2020" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ben-Wormald/advent-of-code-2020 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/Ben-Wormald/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/Ben-Wormald/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/Ben-Wormald/advent-of-code-2020 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ben-Wormald/advent-of-code-2020 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] 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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cca065755f0314a7604edd8c0649ccabe400dd1d90533a2e501ed76f8ffcc1be
[INFO] running `Command { std: "docker" "start" "-a" "cca065755f0314a7604edd8c0649ccabe400dd1d90533a2e501ed76f8ffcc1be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cca065755f0314a7604edd8c0649ccabe400dd1d90533a2e501ed76f8ffcc1be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca065755f0314a7604edd8c0649ccabe400dd1d90533a2e501ed76f8ffcc1be", kill_on_drop: false }`
[INFO] [stdout] cca065755f0314a7604edd8c0649ccabe400dd1d90533a2e501ed76f8ffcc1be
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 882bf1699bfdc6f653600dee39792132460cbf74deb79b6c177991fcf7ed3864
[INFO] running `Command { std: "docker" "start" "-a" "882bf1699bfdc6f653600dee39792132460cbf74deb79b6c177991fcf7ed3864", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.86s
[INFO] running `Command { std: "docker" "inspect" "882bf1699bfdc6f653600dee39792132460cbf74deb79b6c177991fcf7ed3864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "882bf1699bfdc6f653600dee39792132460cbf74deb79b6c177991fcf7ed3864", kill_on_drop: false }`
[INFO] [stdout] 882bf1699bfdc6f653600dee39792132460cbf74deb79b6c177991fcf7ed3864
[INFO] checking Ben-Wormald/advent-of-code-2020 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBen-Wormald%2Fadvent-of-code-2020" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ben-Wormald/advent-of-code-2020 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ben-Wormald/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/Ben-Wormald/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/Ben-Wormald/advent-of-code-2020 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Ben-Wormald/advent-of-code-2020 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a5f5c3a130ac88842908b2f674fdc05b8c8d77e370b6900500f7098d4c4af25
[INFO] running `Command { std: "docker" "start" "-a" "4a5f5c3a130ac88842908b2f674fdc05b8c8d77e370b6900500f7098d4c4af25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a5f5c3a130ac88842908b2f674fdc05b8c8d77e370b6900500f7098d4c4af25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5f5c3a130ac88842908b2f674fdc05b8c8d77e370b6900500f7098d4c4af25", kill_on_drop: false }`
[INFO] [stdout] 4a5f5c3a130ac88842908b2f674fdc05b8c8d77e370b6900500f7098d4c4af25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97ccba76574c02066cf086d4c34a17ea45ec4b649fd50d360ba208df9fc32ae9
[INFO] running `Command { std: "docker" "start" "-a" "97ccba76574c02066cf086d4c34a17ea45ec4b649fd50d360ba208df9fc32ae9", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.26s
[INFO] running `Command { std: "docker" "inspect" "97ccba76574c02066cf086d4c34a17ea45ec4b649fd50d360ba208df9fc32ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ccba76574c02066cf086d4c34a17ea45ec4b649fd50d360ba208df9fc32ae9", kill_on_drop: false }`
[INFO] [stdout] 97ccba76574c02066cf086d4c34a17ea45ec4b649fd50d360ba208df9fc32ae9