[INFO] updating cached repository https://github.com/BorFour/procedural-level-generator
[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] ec068f1f521a1b4cfacba63704324a7a84b5002a
[INFO] testing BorFour/procedural-level-generator against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FBorFour%2Fprocedural-level-generator" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BorFour/procedural-level-generator 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/BorFour/procedural-level-generator
[INFO] finished tweaking git repo https://github.com/BorFour/procedural-level-generator
[INFO] tweaked toml for git repo https://github.com/BorFour/procedural-level-generator written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/BorFour/procedural-level-generator 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] d3a397f3dbe3336590a13ad35b1ca969ae8d9900eee20b093bad2ca128b82a92
[INFO] running `"docker" "start" "-a" "d3a397f3dbe3336590a13ad35b1ca969ae8d9900eee20b093bad2ca128b82a92"`
[INFO] [stderr]    Compiling rand v0.5.1
[INFO] [stderr]    Compiling pathfinding v0.7.3
[INFO] [stderr]    Compiling rsgenetic v1.7.14
[INFO] [stderr]    Compiling level_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `position::search_path_in_level`
[INFO] [stderr]   --> src/natural_selection.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use position::search_path_in_level;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rsgenetic::sim::select::TournamentSelector::new': The `TournamentSelector` requires at least 2 participants. This is not enforced
[INFO] [stderr]                        by the `new` function. You should use `new_checked` instead.
[INFO] [stderr]   --> src/natural_selection.rs:47:44
[INFO] [stderr]    |
[INFO] [stderr] 47 |                     .set_selector(Box::new(TournamentSelector::new(population_size/5, 10)))
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/natural_selection.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         stdout().flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `"docker" "inspect" "d3a397f3dbe3336590a13ad35b1ca969ae8d9900eee20b093bad2ca128b82a92"`
[INFO] running `"docker" "rm" "-f" "d3a397f3dbe3336590a13ad35b1ca969ae8d9900eee20b093bad2ca128b82a92"`
[INFO] [stdout] d3a397f3dbe3336590a13ad35b1ca969ae8d9900eee20b093bad2ca128b82a92
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] cfb8d289f735bac10e471ef9901343ef7891f6c83de880ef4478b3ce83be4b6d
[INFO] running `"docker" "start" "-a" "cfb8d289f735bac10e471ef9901343ef7891f6c83de880ef4478b3ce83be4b6d"`
[INFO] [stderr]    Compiling level_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `position::search_path_in_level`
[INFO] [stderr]   --> src/natural_selection.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use position::search_path_in_level;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rsgenetic::sim::select::TournamentSelector::new': The `TournamentSelector` requires at least 2 participants. This is not enforced
[INFO] [stderr]                        by the `new` function. You should use `new_checked` instead.
[INFO] [stderr]   --> src/natural_selection.rs:47:44
[INFO] [stderr]    |
[INFO] [stderr] 47 |                     .set_selector(Box::new(TournamentSelector::new(population_size/5, 10)))
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/natural_selection.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         stdout().flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "cfb8d289f735bac10e471ef9901343ef7891f6c83de880ef4478b3ce83be4b6d"`
[INFO] running `"docker" "rm" "-f" "cfb8d289f735bac10e471ef9901343ef7891f6c83de880ef4478b3ce83be4b6d"`
[INFO] [stdout] cfb8d289f735bac10e471ef9901343ef7891f6c83de880ef4478b3ce83be4b6d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] ae5baa63a8ecc2d01431ddbc0c65a04b55f31f1a5ca9353e06e252effb4b5f1c
[INFO] running `"docker" "start" "-a" "ae5baa63a8ecc2d01431ddbc0c65a04b55f31f1a5ca9353e06e252effb4b5f1c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/level_generator-d00a59b35b5a6ba7
[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" "ae5baa63a8ecc2d01431ddbc0c65a04b55f31f1a5ca9353e06e252effb4b5f1c"`
[INFO] running `"docker" "rm" "-f" "ae5baa63a8ecc2d01431ddbc0c65a04b55f31f1a5ca9353e06e252effb4b5f1c"`
[INFO] [stdout] ae5baa63a8ecc2d01431ddbc0c65a04b55f31f1a5ca9353e06e252effb4b5f1c