[INFO] cloning repository https://github.com/frostblooded/sliding_puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frostblooded/sliding_puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrostblooded%2Fsliding_puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrostblooded%2Fsliding_puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8104677af6169d93ccbbba1835198402eee69d07
[INFO] testing frostblooded/sliding_puzzle against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrostblooded%2Fsliding_puzzle" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frostblooded/sliding_puzzle 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/frostblooded/sliding_puzzle
[INFO] finished tweaking git repo https://github.com/frostblooded/sliding_puzzle
[INFO] tweaked toml for git repo https://github.com/frostblooded/sliding_puzzle written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/frostblooded/sliding_puzzle 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 282bc99b642e534e89ac0576115cab43955e1cfd2994a5f2f0fa45f9a46d4bfb
[INFO] running `Command { std: "docker" "start" "-a" "282bc99b642e534e89ac0576115cab43955e1cfd2994a5f2f0fa45f9a46d4bfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "282bc99b642e534e89ac0576115cab43955e1cfd2994a5f2f0fa45f9a46d4bfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "282bc99b642e534e89ac0576115cab43955e1cfd2994a5f2f0fa45f9a46d4bfb", kill_on_drop: false }`
[INFO] [stdout] 282bc99b642e534e89ac0576115cab43955e1cfd2994a5f2f0fa45f9a46d4bfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5f59cc1d39a5d9823c54835549962d2b0f8e77bef42de1e574682e86a0c0690c
[INFO] running `Command { std: "docker" "start" "-a" "5f59cc1d39a5d9823c54835549962d2b0f8e77bef42de1e574682e86a0c0690c", kill_on_drop: false }`
[INFO] [stderr]    Compiling sliding_puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "5f59cc1d39a5d9823c54835549962d2b0f8e77bef42de1e574682e86a0c0690c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f59cc1d39a5d9823c54835549962d2b0f8e77bef42de1e574682e86a0c0690c", kill_on_drop: false }`
[INFO] [stdout] 5f59cc1d39a5d9823c54835549962d2b0f8e77bef42de1e574682e86a0c0690c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dc23ad45cb1ecdb50d21c2955d8d3e0e266a5c278df4f78f8151f1e3e3f628c4
[INFO] running `Command { std: "docker" "start" "-a" "dc23ad45cb1ecdb50d21c2955d8d3e0e266a5c278df4f78f8151f1e3e3f628c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling sliding_puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "dc23ad45cb1ecdb50d21c2955d8d3e0e266a5c278df4f78f8151f1e3e3f628c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc23ad45cb1ecdb50d21c2955d8d3e0e266a5c278df4f78f8151f1e3e3f628c4", kill_on_drop: false }`
[INFO] [stdout] dc23ad45cb1ecdb50d21c2955d8d3e0e266a5c278df4f78f8151f1e3e3f628c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d6fc02555f63a844dec6b2fba11969748c9d3d1f9a7775ec74fedbcc0d56769e
[INFO] running `Command { std: "docker" "start" "-a" "d6fc02555f63a844dec6b2fba11969748c9d3d1f9a7775ec74fedbcc0d56769e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sliding_puzzle-14c8db76a0836b4c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/main.rs (/opt/rustwide/target/debug/deps/main-9e52015c77c62879)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/grid_tests.rs (/opt/rustwide/target/debug/deps/grid_tests-23c6de2596ba8672)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_heuristic_for_index ... ok
[INFO] [stdout] test tests::test_expected_pos ... ok
[INFO] [stdout] test tests::test_generating_adjacents ... ok
[INFO] [stdout] test tests::test_heuristic ... ok
[INFO] [stdout] test tests::test_linear_pos_to_matrix_pos ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running tests/solver_tests.rs (/opt/rustwide/target/debug/deps/solver_tests-082d681872659736)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::end_to_end_tests ... ok
[INFO] [stderr]    Doc-tests sliding_puzzle
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6fc02555f63a844dec6b2fba11969748c9d3d1f9a7775ec74fedbcc0d56769e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6fc02555f63a844dec6b2fba11969748c9d3d1f9a7775ec74fedbcc0d56769e", kill_on_drop: false }`
[INFO] [stdout] d6fc02555f63a844dec6b2fba11969748c9d3d1f9a7775ec74fedbcc0d56769e