[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] testing newmancodes/ferris-mcclane against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewmancodes%2Fferris-mcclane" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/newmancodes/ferris-mcclane on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "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-6-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8ca3c690d114760bc7b74c26565ac7c4ae1cb8d1d1274557cb250950338a2266 [INFO] running `Command { std: "docker" "start" "-a" "8ca3c690d114760bc7b74c26565ac7c4ae1cb8d1d1274557cb250950338a2266", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8ca3c690d114760bc7b74c26565ac7c4ae1cb8d1d1274557cb250950338a2266", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ca3c690d114760bc7b74c26565ac7c4ae1cb8d1d1274557cb250950338a2266", kill_on_drop: false }` [INFO] [stdout] 8ca3c690d114760bc7b74c26565ac7c4ae1cb8d1d1274557cb250950338a2266 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ddee5c3461c5ab96e4a1107271542ec9e2aaec47b600c3fc7aba8f1927c71690 [INFO] running `Command { std: "docker" "start" "-a" "ddee5c3461c5ab96e4a1107271542ec9e2aaec47b600c3fc7aba8f1927c71690", kill_on_drop: false }` [INFO] [stderr] Compiling 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 `parent` is never read [INFO] [stdout] --> src/bucket_puzzle.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct BucketPuzzle<'a> { [INFO] [stdout] | ------------ field in this struct [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: method `is_goal_state` is never used [INFO] [stdout] --> src/bucket_puzzle.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl<'a> BucketPuzzle<'a> { [INFO] [stdout] | ------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn is_goal_state(&'a self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IterativeDeepeningSolver` is never constructed [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 items `new` and `solve` are never used [INFO] [stdout] --> src/iterative_deepening_solver.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl<'a> IterativeDeepeningSolver<'a> { [INFO] [stdout] | ------------------------------------- associated items in this implementation [INFO] [stdout] 9 | pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "ddee5c3461c5ab96e4a1107271542ec9e2aaec47b600c3fc7aba8f1927c71690", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ddee5c3461c5ab96e4a1107271542ec9e2aaec47b600c3fc7aba8f1927c71690", kill_on_drop: false }` [INFO] [stdout] ddee5c3461c5ab96e4a1107271542ec9e2aaec47b600c3fc7aba8f1927c71690 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 857cba09b5c36ff5ab2e76d821d9721102d2b763224004db25ae765bd6401d32 [INFO] running `Command { std: "docker" "start" "-a" "857cba09b5c36ff5ab2e76d821d9721102d2b763224004db25ae765bd6401d32", kill_on_drop: false }` [INFO] [stderr] Compiling 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 `parent` is never read [INFO] [stdout] --> src/bucket_puzzle.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct BucketPuzzle<'a> { [INFO] [stdout] | ------------ field in this struct [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: method `is_goal_state` is never used [INFO] [stdout] --> src/bucket_puzzle.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl<'a> BucketPuzzle<'a> { [INFO] [stdout] | ------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn is_goal_state(&'a self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IterativeDeepeningSolver` is never constructed [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 items `new` and `solve` are never used [INFO] [stdout] --> src/iterative_deepening_solver.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl<'a> IterativeDeepeningSolver<'a> { [INFO] [stdout] | ------------------------------------- associated items in this implementation [INFO] [stdout] 9 | pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "857cba09b5c36ff5ab2e76d821d9721102d2b763224004db25ae765bd6401d32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "857cba09b5c36ff5ab2e76d821d9721102d2b763224004db25ae765bd6401d32", kill_on_drop: false }` [INFO] [stdout] 857cba09b5c36ff5ab2e76d821d9721102d2b763224004db25ae765bd6401d32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b63661305e1b073201a47f9df779ec8162ee121dfdbd913569635b6f7a85eb4f [INFO] running `Command { std: "docker" "start" "-a" "b63661305e1b073201a47f9df779ec8162ee121dfdbd913569635b6f7a85eb4f", kill_on_drop: false }` [INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target" to rootfs at "/opt/rustwide/target": mkdir /var/lib/docker/overlay2/736279322e0624162a96135895ad8eb4c36c535c3177ac5e5e99d86a847cbed1/merged/opt/rustwide/target: no space left on device: unknown [INFO] running `Command { std: "docker" "inspect" "b63661305e1b073201a47f9df779ec8162ee121dfdbd913569635b6f7a85eb4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b63661305e1b073201a47f9df779ec8162ee121dfdbd913569635b6f7a85eb4f", kill_on_drop: false }` [INFO] [stdout] b63661305e1b073201a47f9df779ec8162ee121dfdbd913569635b6f7a85eb4f