[INFO] cloning repository https://github.com/kdar/rust-statemachine-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kdar/rust-statemachine-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frust-statemachine-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frust-statemachine-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1198997a5eadf3a50c55bb9d68677b4392c65871 [INFO] checking kdar/rust-statemachine-examples against try#5fdfba63a96c5e8ae0ebf6b8b66853110277087d for pr-73166 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frust-statemachine-examples" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kdar/rust-statemachine-examples on toolchain 5fdfba63a96c5e8ae0ebf6b8b66853110277087d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kdar/rust-statemachine-examples [INFO] finished tweaking git repo https://github.com/kdar/rust-statemachine-examples [INFO] tweaked toml for git repo https://github.com/kdar/rust-statemachine-examples written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/kdar/rust-statemachine-examples already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ec9bb0e477c7edd2f9d9fd2d9fb2679ea934bc1a000ab52e9f42fd0807c7a43d [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" "ec9bb0e477c7edd2f9d9fd2d9fb2679ea934bc1a000ab52e9f42fd0807c7a43d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec9bb0e477c7edd2f9d9fd2d9fb2679ea934bc1a000ab52e9f42fd0807c7a43d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec9bb0e477c7edd2f9d9fd2d9fb2679ea934bc1a000ab52e9f42fd0807c7a43d", kill_on_drop: false }` [INFO] [stdout] ec9bb0e477c7edd2f9d9fd2d9fb2679ea934bc1a000ab52e9f42fd0807c7a43d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c461b499051052103efdbac05e43be4fc4e0290db9b2a45784dbed384228a29 [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" "4c461b499051052103efdbac05e43be4fc4e0290db9b2a45784dbed384228a29", kill_on_drop: false }` [INFO] [stderr] Checking rust-statemachine-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sm1.rs:21:34 [INFO] [stdout] | [INFO] [stdout] 21 | fn state2(&mut self) -> Option<(&'static str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sm1.rs:26:34 [INFO] [stdout] | [INFO] [stdout] 26 | fn state3(&mut self) -> Option<(&'static str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sm1.rs:21:34 [INFO] [stdout] | [INFO] [stdout] 21 | fn state2(&mut self) -> Option<(&'static str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/sm1.rs:26:34 [INFO] [stdout] | [INFO] [stdout] 26 | fn state3(&mut self) -> Option<(&'static str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "4c461b499051052103efdbac05e43be4fc4e0290db9b2a45784dbed384228a29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c461b499051052103efdbac05e43be4fc4e0290db9b2a45784dbed384228a29", kill_on_drop: false }` [INFO] [stdout] 4c461b499051052103efdbac05e43be4fc4e0290db9b2a45784dbed384228a29