[INFO] cloning repository https://github.com/phosae/rustlings-solution [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phosae/rustlings-solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphosae%2Frustlings-solution", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphosae%2Frustlings-solution'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7b743d104df883927980a55f4dea30c968fb4da6 [INFO] checking phosae/rustlings-solution against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphosae%2Frustlings-solution" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] [stderr] Updating files: 94% (4314/4563) Updating files: 95% (4335/4563) Updating files: 96% (4381/4563) Updating files: 97% (4427/4563) Updating files: 98% (4472/4563) Updating files: 99% (4518/4563) Updating files: 100% (4563/4563) Updating files: 100% (4563/4563), done. [INFO] validating manifest of git repo https://github.com/phosae/rustlings-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/phosae/rustlings-solution [INFO] finished tweaking git repo https://github.com/phosae/rustlings-solution [INFO] tweaked toml for git repo https://github.com/phosae/rustlings-solution written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/phosae/rustlings-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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3a640f767f462d559ea4bf1070d21b6dec4b5696dcc06404420e6de9de0beed2 [INFO] running `Command { std: "docker" "start" "-a" "3a640f767f462d559ea4bf1070d21b6dec4b5696dcc06404420e6de9de0beed2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3a640f767f462d559ea4bf1070d21b6dec4b5696dcc06404420e6de9de0beed2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a640f767f462d559ea4bf1070d21b6dec4b5696dcc06404420e6de9de0beed2", kill_on_drop: false }` [INFO] [stdout] 3a640f767f462d559ea4bf1070d21b6dec4b5696dcc06404420e6de9de0beed2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 16a92ac1eee271239a565cad60c90f75ed953a8bdafa935678e9b47960eef3ef [INFO] running `Command { std: "docker" "start" "-a" "16a92ac1eee271239a565cad60c90f75ed953a8bdafa935678e9b47960eef3ef", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking number_prefix v0.2.8 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking predicates-tree v1.0.3 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking console v0.14.1 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking filetime v0.2.15 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termios v0.3.3 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Checking indicatif v0.10.3 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Checking argh v0.1.5 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.26s [INFO] running `Command { std: "docker" "inspect" "16a92ac1eee271239a565cad60c90f75ed953a8bdafa935678e9b47960eef3ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16a92ac1eee271239a565cad60c90f75ed953a8bdafa935678e9b47960eef3ef", kill_on_drop: false }` [INFO] [stdout] 16a92ac1eee271239a565cad60c90f75ed953a8bdafa935678e9b47960eef3ef [INFO] checking phosae/rustlings-solution against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphosae%2Frustlings-solution" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. 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[INFO] validating manifest of git repo https://github.com/phosae/rustlings-solution 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/phosae/rustlings-solution [INFO] finished tweaking git repo https://github.com/phosae/rustlings-solution [INFO] tweaked toml for git repo https://github.com/phosae/rustlings-solution written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/phosae/rustlings-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4d04e0c88b8f36d3351b8369e1a78ca3c3957f1fd20b566294fc3ffed8cde8f1 [INFO] running `Command { std: "docker" "start" "-a" "4d04e0c88b8f36d3351b8369e1a78ca3c3957f1fd20b566294fc3ffed8cde8f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d04e0c88b8f36d3351b8369e1a78ca3c3957f1fd20b566294fc3ffed8cde8f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d04e0c88b8f36d3351b8369e1a78ca3c3957f1fd20b566294fc3ffed8cde8f1", kill_on_drop: false }` [INFO] [stdout] 4d04e0c88b8f36d3351b8369e1a78ca3c3957f1fd20b566294fc3ffed8cde8f1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 59ab9598f2b78d673586deffb19d032a506835273a36d0f5c2c2477bc1b41312 [INFO] running `Command { std: "docker" "start" "-a" "59ab9598f2b78d673586deffb19d032a506835273a36d0f5c2c2477bc1b41312", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking number_prefix v0.2.8 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking predicates-tree v1.0.3 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking termios v0.3.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking console v0.14.1 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking filetime v0.2.15 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Checking indicatif v0.10.3 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Checking argh v0.1.5 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.62s [INFO] running `Command { std: "docker" "inspect" "59ab9598f2b78d673586deffb19d032a506835273a36d0f5c2c2477bc1b41312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59ab9598f2b78d673586deffb19d032a506835273a36d0f5c2c2477bc1b41312", kill_on_drop: false }` [INFO] [stdout] 59ab9598f2b78d673586deffb19d032a506835273a36d0f5c2c2477bc1b41312