[INFO] updating cached repository https://github.com/rookwood101/blocksworld_solver
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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 beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frookwood101%2Fblocksworld_solver" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rookwood101/blocksworld_solver on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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 /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rookwood101/blocksworld_solver already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce1fd902f17a8351e1ffdfeaecc50e12645353904d998c437d75868835def5d6
[INFO] running `"docker" "start" "-a" "ce1fd902f17a8351e1ffdfeaecc50e12645353904d998c437d75868835def5d6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling bidir-map v0.3.0
[INFO] [stderr]    Compiling rand v0.3.14
[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: associated function is never used: `latex_print`
[INFO] [stderr]   --> src/blocksworld/world.rs:52:12
[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:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solution_depth_difficulty(goal_world: World) -> Vec<(u8, World)> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(start_world: World, max_difficulty: u8) -> SolutionDepthSearcher {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `search`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:31:12
[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:1:4
[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:16:8
[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:39:4
[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] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `"docker" "inspect" "ce1fd902f17a8351e1ffdfeaecc50e12645353904d998c437d75868835def5d6"`
[INFO] running `"docker" "rm" "-f" "ce1fd902f17a8351e1ffdfeaecc50e12645353904d998c437d75868835def5d6"`
[INFO] [stdout] ce1fd902f17a8351e1ffdfeaecc50e12645353904d998c437d75868835def5d6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a497e47e257f2e621741da7bd284b406ddb4a4573586a98bbc0bf1e7f889f061
[INFO] running `"docker" "start" "-a" "a497e47e257f2e621741da7bd284b406ddb4a4573586a98bbc0bf1e7f889f061"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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: associated function is never used: `latex_print`
[INFO] [stderr]   --> src/blocksworld/world.rs:52:12
[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:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solution_depth_difficulty(goal_world: World) -> Vec<(u8, World)> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(start_world: World, max_difficulty: u8) -> SolutionDepthSearcher {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `search`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:31:12
[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:1:4
[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:16:8
[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:39:4
[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] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "a497e47e257f2e621741da7bd284b406ddb4a4573586a98bbc0bf1e7f889f061"`
[INFO] running `"docker" "rm" "-f" "a497e47e257f2e621741da7bd284b406ddb4a4573586a98bbc0bf1e7f889f061"`
[INFO] [stdout] a497e47e257f2e621741da7bd284b406ddb4a4573586a98bbc0bf1e7f889f061
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] d464960293d5d265db3982a6a7d92f900158b1fca14f8370c9109dba9c2a1d2c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d464960293d5d265db3982a6a7d92f900158b1fca14f8370c9109dba9c2a1d2c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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: associated function is never used: `latex_print`
[INFO] [stderr]   --> src/blocksworld/world.rs:52:12
[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:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solution_depth_difficulty(goal_world: World) -> Vec<(u8, World)> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(start_world: World, max_difficulty: u8) -> SolutionDepthSearcher {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `search`
[INFO] [stderr]   --> src/blocksworld/test/problem_generators/solution_depth_difficulty.rs:31:12
[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:1:4
[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:16:8
[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:39:4
[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] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blocksworld_solver-435ddc3de7977baf
[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" "d464960293d5d265db3982a6a7d92f900158b1fca14f8370c9109dba9c2a1d2c"`
[INFO] running `"docker" "rm" "-f" "d464960293d5d265db3982a6a7d92f900158b1fca14f8370c9109dba9c2a1d2c"`
[INFO] [stdout] d464960293d5d265db3982a6a7d92f900158b1fca14f8370c9109dba9c2a1d2c