[INFO] cloning repository https://github.com/cicvedu/rustlings-semester-3-xuguangtech [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-3-xuguangtech" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-3-xuguangtech", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-3-xuguangtech'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 994d474dfa77194487017b709c74f71c5c19823c [INFO] checking cicvedu/rustlings-semester-3-xuguangtech 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-3-xuguangtech" "/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-3-xuguangtech 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-3-xuguangtech [INFO] finished tweaking git repo https://github.com/cicvedu/rustlings-semester-3-xuguangtech [INFO] tweaked toml for git repo https://github.com/cicvedu/rustlings-semester-3-xuguangtech written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/cicvedu/rustlings-semester-3-xuguangtech 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] Blocking waiting for file lock on package cache [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] a3fc76061e44e929ac7de8221a8d95d1b63796e00d9b6e4169ef7bb908061804 [INFO] running `Command { std: "docker" "start" "-a" "a3fc76061e44e929ac7de8221a8d95d1b63796e00d9b6e4169ef7bb908061804", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3fc76061e44e929ac7de8221a8d95d1b63796e00d9b6e4169ef7bb908061804", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3fc76061e44e929ac7de8221a8d95d1b63796e00d9b6e4169ef7bb908061804", kill_on_drop: false }` [INFO] [stdout] a3fc76061e44e929ac7de8221a8d95d1b63796e00d9b6e4169ef7bb908061804 [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] ee1b2c4905abf89dde83919efe7b7b6bb5c229c93d0cecc89fd9f723173104af [INFO] running `Command { std: "docker" "start" "-a" "ee1b2c4905abf89dde83919efe7b7b6bb5c229c93d0cecc89fd9f723173104af", kill_on_drop: false }` [INFO] [stderr] Checking rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s [INFO] running `Command { std: "docker" "inspect" "ee1b2c4905abf89dde83919efe7b7b6bb5c229c93d0cecc89fd9f723173104af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee1b2c4905abf89dde83919efe7b7b6bb5c229c93d0cecc89fd9f723173104af", kill_on_drop: false }` [INFO] [stdout] ee1b2c4905abf89dde83919efe7b7b6bb5c229c93d0cecc89fd9f723173104af [INFO] checking cicvedu/rustlings-semester-3-xuguangtech 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-3-xuguangtech" "/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-3-xuguangtech 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-3-xuguangtech [INFO] finished tweaking git repo https://github.com/cicvedu/rustlings-semester-3-xuguangtech [INFO] tweaked toml for git repo https://github.com/cicvedu/rustlings-semester-3-xuguangtech written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/cicvedu/rustlings-semester-3-xuguangtech 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] 9638e7108ba34977dc94684db5e97f3aaa5680213025c9abba2d45bab42a2f0f [INFO] running `Command { std: "docker" "start" "-a" "9638e7108ba34977dc94684db5e97f3aaa5680213025c9abba2d45bab42a2f0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9638e7108ba34977dc94684db5e97f3aaa5680213025c9abba2d45bab42a2f0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9638e7108ba34977dc94684db5e97f3aaa5680213025c9abba2d45bab42a2f0f", kill_on_drop: false }` [INFO] [stdout] 9638e7108ba34977dc94684db5e97f3aaa5680213025c9abba2d45bab42a2f0f [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] ad188ca891530fd01bb03bc04bab68bb0a12df0bef0e6f19ad6555a868e4cdf2 [INFO] running `Command { std: "docker" "start" "-a" "ad188ca891530fd01bb03bc04bab68bb0a12df0bef0e6f19ad6555a868e4cdf2", kill_on_drop: false }` [INFO] [stderr] Checking rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "ad188ca891530fd01bb03bc04bab68bb0a12df0bef0e6f19ad6555a868e4cdf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad188ca891530fd01bb03bc04bab68bb0a12df0bef0e6f19ad6555a868e4cdf2", kill_on_drop: false }` [INFO] [stdout] ad188ca891530fd01bb03bc04bab68bb0a12df0bef0e6f19ad6555a868e4cdf2