[INFO] updating cached repository https://github.com/rookwood101/blocksworld_solver
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 625cca7c82e6d72c16742e25e11b0362ec8bec92
[INFO] testing rookwood101/blocksworld_solver against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frookwood101%2Fblocksworld_solver" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rookwood101/blocksworld_solver on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rookwood101/blocksworld_solver
[INFO] finished tweaking git repo https://github.com/rookwood101/blocksworld_solver
[INFO] tweaked toml for git repo https://github.com/rookwood101/blocksworld_solver written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rookwood101/blocksworld_solver already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] d90b293f8f05edc5112dc1fa39cb39f1159f6f99512f23cfc06760640595811e
[INFO] running `"docker" "start" "-a" "d90b293f8f05edc5112dc1fa39cb39f1159f6f99512f23cfc06760640595811e"`
[INFO] [stderr]    Compiling bidir-map v0.3.0
[INFO] [stderr]    Compiling blocksworld_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `blocksworld::search::Node`
[INFO] [stderr]  --> src/blocksworld/test/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use blocksworld::search::Node;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `blocksworld::test::test`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use blocksworld::test::test;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `blocksworld::search::Searcher`
[INFO] [stderr]  --> src/blocksworld/test/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use blocksworld::search::Searcher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `latex_print`
[INFO] [stderr]   --> src/blocksworld/world.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn latex_print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solution_depth_difficulty`
[INFO] [stderr]  --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solution_depth_difficulty(goal_world: World) -> Vec<(u8, World)> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SolutionDepthSearcher`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct SolutionDepthSearcher {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(start_world: World, max_difficulty: u8) -> SolutionDepthSearcher {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `search`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn search(mut self) -> Vec<(u8, World)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `grid_size_difficulty`
[INFO] [stderr]  --> src/blocksworld/test/problem_generators/grid_size_difficulty.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn grid_size_difficulty() {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]   --> src/blocksworld/test/mod.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn test() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_all_searchers_average`
[INFO] [stderr]   --> src/blocksworld/test/mod.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn run_all_searchers_average(start_world: &World, goal_world: &World, difficulty: u8) -> Vec<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "d90b293f8f05edc5112dc1fa39cb39f1159f6f99512f23cfc06760640595811e"`
[INFO] running `"docker" "rm" "-f" "d90b293f8f05edc5112dc1fa39cb39f1159f6f99512f23cfc06760640595811e"`
[INFO] [stdout] d90b293f8f05edc5112dc1fa39cb39f1159f6f99512f23cfc06760640595811e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2c0edd1fd6b21b1db183d19c27da43700eef8c2bc485ae34b4fa617cb0322c01
[INFO] running `"docker" "start" "-a" "2c0edd1fd6b21b1db183d19c27da43700eef8c2bc485ae34b4fa617cb0322c01"`
[INFO] [stderr]    Compiling blocksworld_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `blocksworld::search::Node`
[INFO] [stderr]  --> src/blocksworld/test/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use blocksworld::search::Node;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `blocksworld::test::test`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use blocksworld::test::test;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `blocksworld::search::Searcher`
[INFO] [stderr]  --> src/blocksworld/test/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use blocksworld::search::Searcher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `latex_print`
[INFO] [stderr]   --> src/blocksworld/world.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn latex_print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solution_depth_difficulty`
[INFO] [stderr]  --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solution_depth_difficulty(goal_world: World) -> Vec<(u8, World)> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SolutionDepthSearcher`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct SolutionDepthSearcher {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(start_world: World, max_difficulty: u8) -> SolutionDepthSearcher {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `search`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn search(mut self) -> Vec<(u8, World)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `grid_size_difficulty`
[INFO] [stderr]  --> src/blocksworld/test/problem_generators/grid_size_difficulty.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn grid_size_difficulty() {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]   --> src/blocksworld/test/mod.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn test() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_all_searchers_average`
[INFO] [stderr]   --> src/blocksworld/test/mod.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn run_all_searchers_average(start_world: &World, goal_world: &World, difficulty: u8) -> Vec<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "2c0edd1fd6b21b1db183d19c27da43700eef8c2bc485ae34b4fa617cb0322c01"`
[INFO] running `"docker" "rm" "-f" "2c0edd1fd6b21b1db183d19c27da43700eef8c2bc485ae34b4fa617cb0322c01"`
[INFO] [stdout] 2c0edd1fd6b21b1db183d19c27da43700eef8c2bc485ae34b4fa617cb0322c01
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 431e4fa8b2833da89bb0e5c19423c3869661e6b4b03bd3d89ba1408dbbaf3526
[INFO] running `"docker" "start" "-a" "431e4fa8b2833da89bb0e5c19423c3869661e6b4b03bd3d89ba1408dbbaf3526"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blocksworld_solver-26a64eba20dd397f
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "431e4fa8b2833da89bb0e5c19423c3869661e6b4b03bd3d89ba1408dbbaf3526"`
[INFO] running `"docker" "rm" "-f" "431e4fa8b2833da89bb0e5c19423c3869661e6b4b03bd3d89ba1408dbbaf3526"`
[INFO] [stdout] 431e4fa8b2833da89bb0e5c19423c3869661e6b4b03bd3d89ba1408dbbaf3526