[INFO] cloning repository https://github.com/cicvedu/rustlings-semester-2-runawayaway
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cicvedu/rustlings-semester-2-runawayaway" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-2-runawayaway", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-2-runawayaway'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4cbd3a63d111beb9db203c621065e4efc047f22
[INFO] checking cicvedu/rustlings-semester-2-runawayaway against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-2-runawayaway" "/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/cicvedu/rustlings-semester-2-runawayaway 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/cicvedu/rustlings-semester-2-runawayaway
[INFO] finished tweaking git repo https://github.com/cicvedu/rustlings-semester-2-runawayaway
[INFO] tweaked toml for git repo https://github.com/cicvedu/rustlings-semester-2-runawayaway written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cicvedu/rustlings-semester-2-runawayaway 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-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] f95f3bfc12b3e0de4f42b052848d2e21e5a6f7001540c01fda83a9f1673c8e8e
[INFO] running `Command { std: "docker" "start" "-a" "f95f3bfc12b3e0de4f42b052848d2e21e5a6f7001540c01fda83a9f1673c8e8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f95f3bfc12b3e0de4f42b052848d2e21e5a6f7001540c01fda83a9f1673c8e8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f95f3bfc12b3e0de4f42b052848d2e21e5a6f7001540c01fda83a9f1673c8e8e", kill_on_drop: false }`
[INFO] [stdout] f95f3bfc12b3e0de4f42b052848d2e21e5a6f7001540c01fda83a9f1673c8e8e
[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] c4a33dc82b288e6e4cc12e8b1e8f0b6c54def840441a254b46c5f0be4c9181ce
[INFO] running `Command { std: "docker" "start" "-a" "c4a33dc82b288e6e4cc12e8b1e8f0b6c54def840441a254b46c5f0be4c9181ce", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "c4a33dc82b288e6e4cc12e8b1e8f0b6c54def840441a254b46c5f0be4c9181ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a33dc82b288e6e4cc12e8b1e8f0b6c54def840441a254b46c5f0be4c9181ce", kill_on_drop: false }`
[INFO] [stdout] c4a33dc82b288e6e4cc12e8b1e8f0b6c54def840441a254b46c5f0be4c9181ce
[INFO] checking cicvedu/rustlings-semester-2-runawayaway against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-2-runawayaway" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cicvedu/rustlings-semester-2-runawayaway 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/cicvedu/rustlings-semester-2-runawayaway
[INFO] finished tweaking git repo https://github.com/cicvedu/rustlings-semester-2-runawayaway
[INFO] tweaked toml for git repo https://github.com/cicvedu/rustlings-semester-2-runawayaway written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cicvedu/rustlings-semester-2-runawayaway 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 44af3d568669f9399fadce07aaf9d899cf5b8ffb454dd1e0b132902d6a4536f7
[INFO] running `Command { std: "docker" "start" "-a" "44af3d568669f9399fadce07aaf9d899cf5b8ffb454dd1e0b132902d6a4536f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44af3d568669f9399fadce07aaf9d899cf5b8ffb454dd1e0b132902d6a4536f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44af3d568669f9399fadce07aaf9d899cf5b8ffb454dd1e0b132902d6a4536f7", kill_on_drop: false }`
[INFO] [stdout] 44af3d568669f9399fadce07aaf9d899cf5b8ffb454dd1e0b132902d6a4536f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3e0b60b51f783fbb129b7fa686859a0bbc1966105a37f14594d7424d38e1d9c1
[INFO] running `Command { std: "docker" "start" "-a" "3e0b60b51f783fbb129b7fa686859a0bbc1966105a37f14594d7424d38e1d9c1", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "3e0b60b51f783fbb129b7fa686859a0bbc1966105a37f14594d7424d38e1d9c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e0b60b51f783fbb129b7fa686859a0bbc1966105a37f14594d7424d38e1d9c1", kill_on_drop: false }`
[INFO] [stdout] 3e0b60b51f783fbb129b7fa686859a0bbc1966105a37f14594d7424d38e1d9c1