[INFO] cloning repository https://github.com/newmancodes/ferris-mcclane [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/newmancodes/ferris-mcclane" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewmancodes%2Fferris-mcclane", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewmancodes%2Fferris-mcclane'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bf8188f6217700977c35922f395a733c35328e98 [INFO] checking newmancodes/ferris-mcclane against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewmancodes%2Fferris-mcclane" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/newmancodes/ferris-mcclane on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/newmancodes/ferris-mcclane [INFO] finished tweaking git repo https://github.com/newmancodes/ferris-mcclane [INFO] tweaked toml for git repo https://github.com/newmancodes/ferris-mcclane written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/newmancodes/ferris-mcclane already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a01fc2a688b169a3c56a8efc03e42a2d48e8854557d93dd4e22baf0fd6abc570 [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" "a01fc2a688b169a3c56a8efc03e42a2d48e8854557d93dd4e22baf0fd6abc570", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a01fc2a688b169a3c56a8efc03e42a2d48e8854557d93dd4e22baf0fd6abc570", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a01fc2a688b169a3c56a8efc03e42a2d48e8854557d93dd4e22baf0fd6abc570", kill_on_drop: false }` [INFO] [stdout] a01fc2a688b169a3c56a8efc03e42a2d48e8854557d93dd4e22baf0fd6abc570 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 6a2ccc71c820abd4eab50f404893855e47ae9936fa8342e176acba655d4d6c28 [INFO] running `Command { std: "docker" "start" "-a" "6a2ccc71c820abd4eab50f404893855e47ae9936fa8342e176acba655d4d6c28", kill_on_drop: false }` [INFO] [stderr] Checking ferris-mcclane v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `explored` [INFO] [stdout] --> src/iterative_deepening_solver.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut explored: Vec> = Vec::new(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_explored` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `frontier` [INFO] [stdout] --> src/iterative_deepening_solver.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut frontier: Vec> = vec!(self.initial_state); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frontier` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterative_deepening_solver.rs:17:13 [INFO] [stdout] | [INFO] [stdout] 17 | let mut explored: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterative_deepening_solver.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut frontier: Vec> = vec!(self.initial_state); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `parent` [INFO] [stdout] --> src/bucket_puzzle.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | parent: Option<&'a BucketPuzzle<'a>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_goal_state` [INFO] [stdout] --> src/bucket_puzzle.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn is_goal_state(&'a self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `IterativeDeepeningSolver` [INFO] [stdout] --> src/iterative_deepening_solver.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct IterativeDeepeningSolver<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/iterative_deepening_solver.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `solve` [INFO] [stdout] --> src/iterative_deepening_solver.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `explored` [INFO] [stdout] --> src/iterative_deepening_solver.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut explored: Vec> = Vec::new(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_explored` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `frontier` [INFO] [stdout] --> src/iterative_deepening_solver.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut frontier: Vec> = vec!(self.initial_state); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frontier` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterative_deepening_solver.rs:17:13 [INFO] [stdout] | [INFO] [stdout] 17 | let mut explored: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterative_deepening_solver.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut frontier: Vec> = vec!(self.initial_state); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `parent` [INFO] [stdout] --> src/bucket_puzzle.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | parent: Option<&'a BucketPuzzle<'a>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_goal_state` [INFO] [stdout] --> src/bucket_puzzle.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn is_goal_state(&'a self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `IterativeDeepeningSolver` [INFO] [stdout] --> src/iterative_deepening_solver.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct IterativeDeepeningSolver<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/iterative_deepening_solver.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `solve` [INFO] [stdout] --> src/iterative_deepening_solver.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.66s [INFO] running `Command { std: "docker" "inspect" "6a2ccc71c820abd4eab50f404893855e47ae9936fa8342e176acba655d4d6c28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a2ccc71c820abd4eab50f404893855e47ae9936fa8342e176acba655d4d6c28", kill_on_drop: false }` [INFO] [stdout] 6a2ccc71c820abd4eab50f404893855e47ae9936fa8342e176acba655d4d6c28