[INFO] cloning repository https://github.com/Verfuchst/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Verfuchst/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerfuchst%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerfuchst%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9f61db5dbe38538cf06571fcdd5f806e7901e83a [INFO] checking Verfuchst/rustlings against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerfuchst%2Frustlings" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Verfuchst/rustlings on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Verfuchst/rustlings [INFO] finished tweaking git repo https://github.com/Verfuchst/rustlings [INFO] tweaked toml for git repo https://github.com/Verfuchst/rustlings written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/Verfuchst/rustlings already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] febd9571f09989bcf1ae167ec4b77c85967d705a8ddc6c42eb5440a9209b3ede [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "febd9571f09989bcf1ae167ec4b77c85967d705a8ddc6c42eb5440a9209b3ede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "febd9571f09989bcf1ae167ec4b77c85967d705a8ddc6c42eb5440a9209b3ede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "febd9571f09989bcf1ae167ec4b77c85967d705a8ddc6c42eb5440a9209b3ede", kill_on_drop: false }` [INFO] [stdout] febd9571f09989bcf1ae167ec4b77c85967d705a8ddc6c42eb5440a9209b3ede [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35b1aa0ed93f93baaf7b2c38211378c531fe4af9d102bbf5b32ccb655fc08623 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "35b1aa0ed93f93baaf7b2c38211378c531fe4af9d102bbf5b32ccb655fc08623", kill_on_drop: false }` [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking clicolors-control v1.0.0 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking inotify v0.7.0 [INFO] [stderr] Checking lock_api v0.2.0 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking notify v4.0.15 [INFO] [stderr] Checking console v0.8.0 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Checking predicates v1.0.1 [INFO] [stderr] Checking indicatif v0.10.3 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Checking serde v1.0.92 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking rustlings v3.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking escargot v0.4.0 [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 18.45s [INFO] running `Command { std: "docker" "inspect" "35b1aa0ed93f93baaf7b2c38211378c531fe4af9d102bbf5b32ccb655fc08623", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35b1aa0ed93f93baaf7b2c38211378c531fe4af9d102bbf5b32ccb655fc08623", kill_on_drop: false }` [INFO] [stdout] 35b1aa0ed93f93baaf7b2c38211378c531fe4af9d102bbf5b32ccb655fc08623