[INFO] cloning repository https://github.com/JonathanVusich/monty_hall_simulator_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JonathanVusich/monty_hall_simulator_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanVusich%2Fmonty_hall_simulator_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanVusich%2Fmonty_hall_simulator_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cc809d857a28b733469afa7745d7927d06d057f7 [INFO] checking JonathanVusich/monty_hall_simulator_rust against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanVusich%2Fmonty_hall_simulator_rust" "/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/JonathanVusich/monty_hall_simulator_rust on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JonathanVusich/monty_hall_simulator_rust [INFO] finished tweaking git repo https://github.com/JonathanVusich/monty_hall_simulator_rust [INFO] tweaked toml for git repo https://github.com/JonathanVusich/monty_hall_simulator_rust written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/JonathanVusich/monty_hall_simulator_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4562c1add4516c35443a15cc16bb0a741b13ce24cb2bb6dd60f71b48563b9baa [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" "4562c1add4516c35443a15cc16bb0a741b13ce24cb2bb6dd60f71b48563b9baa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4562c1add4516c35443a15cc16bb0a741b13ce24cb2bb6dd60f71b48563b9baa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4562c1add4516c35443a15cc16bb0a741b13ce24cb2bb6dd60f71b48563b9baa", kill_on_drop: false }` [INFO] [stdout] 4562c1add4516c35443a15cc16bb0a741b13ce24cb2bb6dd60f71b48563b9baa [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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] bc0daa9043e92596dfcfe3cf37585a05e2a0fa4e700723a55fa7c8f573365af4 [INFO] running `Command { std: "docker" "start" "-a" "bc0daa9043e92596dfcfe3cf37585a05e2a0fa4e700723a55fa7c8f573365af4", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Checking rand_xorshift v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.0 [INFO] [stderr] Compiling rand v0.6.1 [INFO] [stderr] Checking monty_hall_simulator_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.98s [INFO] running `Command { std: "docker" "inspect" "bc0daa9043e92596dfcfe3cf37585a05e2a0fa4e700723a55fa7c8f573365af4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc0daa9043e92596dfcfe3cf37585a05e2a0fa4e700723a55fa7c8f573365af4", kill_on_drop: false }` [INFO] [stdout] bc0daa9043e92596dfcfe3cf37585a05e2a0fa4e700723a55fa7c8f573365af4