[INFO] cloning repository https://github.com/ebichan/rustlings-my-solution
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ebichan/rustlings-my-solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febichan%2Frustlings-my-solution", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febichan%2Frustlings-my-solution'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbabef1093f39c00dd616221e173e614fa0a8821
[INFO] checking ebichan/rustlings-my-solution against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febichan%2Frustlings-my-solution" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ebichan/rustlings-my-solution 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/ebichan/rustlings-my-solution
[INFO] finished tweaking git repo https://github.com/ebichan/rustlings-my-solution
[INFO] tweaked toml for git repo https://github.com/ebichan/rustlings-my-solution written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ebichan/rustlings-my-solution 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9464d88be406cdccd622b1b285fb4d9ac2b987bbd33628b9b8d47a67a5e7e88
[INFO] running `Command { std: "docker" "start" "-a" "c9464d88be406cdccd622b1b285fb4d9ac2b987bbd33628b9b8d47a67a5e7e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9464d88be406cdccd622b1b285fb4d9ac2b987bbd33628b9b8d47a67a5e7e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9464d88be406cdccd622b1b285fb4d9ac2b987bbd33628b9b8d47a67a5e7e88", kill_on_drop: false }`
[INFO] [stdout] c9464d88be406cdccd622b1b285fb4d9ac2b987bbd33628b9b8d47a67a5e7e88
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fa159d8eb283bc3bf00455579528d337493d8eb6cd2a36fbdf265601abbda50
[INFO] running `Command { std: "docker" "start" "-a" "4fa159d8eb283bc3bf00455579528d337493d8eb6cd2a36fbdf265601abbda50", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "4fa159d8eb283bc3bf00455579528d337493d8eb6cd2a36fbdf265601abbda50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fa159d8eb283bc3bf00455579528d337493d8eb6cd2a36fbdf265601abbda50", kill_on_drop: false }`
[INFO] [stdout] 4fa159d8eb283bc3bf00455579528d337493d8eb6cd2a36fbdf265601abbda50