[INFO] updating cached repository lreynolds18/maze-solver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lreynolds18/maze-solver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lreynolds18/maze-solver" "work/ex/beta-1.37-6/sources/1.36.0/gh/lreynolds18/maze-solver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lreynolds18/maze-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lreynolds18/maze-solver" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lreynolds18/maze-solver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lreynolds18/maze-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f8025d73c2046ad6dabd37e51c1e8c2d8f72b73
[INFO] sha for GitHub repo lreynolds18/maze-solver: 5f8025d73c2046ad6dabd37e51c1e8c2d8f72b73
[INFO] validating manifest of lreynolds18/maze-solver on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lreynolds18/maze-solver on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lreynolds18/maze-solver
[INFO] finished frobbing lreynolds18/maze-solver
[INFO] frobbed toml for lreynolds18/maze-solver written to work/ex/beta-1.37-6/sources/1.36.0/gh/lreynolds18/maze-solver/Cargo.toml
[INFO] started frobbing lreynolds18/maze-solver
[INFO] finished frobbing lreynolds18/maze-solver
[INFO] frobbed toml for lreynolds18/maze-solver written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lreynolds18/maze-solver/Cargo.toml
[INFO] crate lreynolds18/maze-solver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lreynolds18/maze-solver against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lreynolds18/maze-solver:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b82a42bf2b1be9b14db8e6d9eba2c32b92d324bc924ca42a7140899870513d03
[INFO] running `"docker" "start" "-a" "b82a42bf2b1be9b14db8e6d9eba2c32b92d324bc924ca42a7140899870513d03"`
[INFO] [stderr]    Compiling either v1.3.0
[INFO] [stderr]    Compiling serde v1.0.19
[INFO] [stderr]    Compiling shared_library v0.1.7
[INFO] [stderr]    Compiling x11-dl v2.16.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling piston2d-graphics v0.22.0
[INFO] [stderr]    Compiling serde_derive v1.0.19
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling wayland-sys v0.9.10
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling wayland-protocols v0.9.10
[INFO] [stderr]    Compiling wayland-kbd v0.9.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling image v0.16.0
[INFO] [stderr]    Compiling wayland-window v0.7.0
[INFO] [stderr]    Compiling winit v0.7.6
[INFO] [stderr]    Compiling pistoncore-input v0.19.0
[INFO] [stderr]    Compiling glutin v0.9.2
[INFO] [stderr]    Compiling pistoncore-window v0.29.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.34.0
[INFO] [stderr]    Compiling piston v0.34.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.40.1
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.47.0
[INFO] [stderr]    Compiling maze_solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `MazeSolver`
[INFO] [stderr]   --> src/main.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | struct MazeSolver {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dfs`
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn dfs() {}
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bfs`
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn bfs() {}
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `a_star`
[INFO] [stderr]   --> src/main.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn a_star() {}
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for crate
[INFO] [stderr]    --> src/main.rs:1:1
[INFO] [stderr]     |
[INFO] [stderr] 1   | / #![deny(missing_docs)]
[INFO] [stderr] 2   | |
[INFO] [stderr] 3   | | extern crate piston;
[INFO] [stderr] 4   | | extern crate graphics;
[INFO] [stderr] ...   |
[INFO] [stderr] 155 | |     screen.run();
[INFO] [stderr] 156 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/main.rs:1:9
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![deny(missing_docs)]
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `"docker" "inspect" "b82a42bf2b1be9b14db8e6d9eba2c32b92d324bc924ca42a7140899870513d03"`
[INFO] running `"docker" "rm" "-f" "b82a42bf2b1be9b14db8e6d9eba2c32b92d324bc924ca42a7140899870513d03"`
[INFO] [stdout] b82a42bf2b1be9b14db8e6d9eba2c32b92d324bc924ca42a7140899870513d03
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lreynolds18/maze-solver:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e0921810b45a04b6aa620126698359d7afd8a9d43b68d9d852d629b004dbea82
[INFO] running `"docker" "start" "-a" "e0921810b45a04b6aa620126698359d7afd8a9d43b68d9d852d629b004dbea82"`
[INFO] [stderr]    Compiling maze_solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `MazeSolver`
[INFO] [stderr]   --> src/main.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | struct MazeSolver {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dfs`
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn dfs() {}
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bfs`
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn bfs() {}
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `a_star`
[INFO] [stderr]   --> src/main.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn a_star() {}
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "e0921810b45a04b6aa620126698359d7afd8a9d43b68d9d852d629b004dbea82"`
[INFO] running `"docker" "rm" "-f" "e0921810b45a04b6aa620126698359d7afd8a9d43b68d9d852d629b004dbea82"`
[INFO] [stdout] e0921810b45a04b6aa620126698359d7afd8a9d43b68d9d852d629b004dbea82
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lreynolds18/maze-solver:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 3dc98566b1b565803922620fb8f07c7a74156ca6d69ca1a21142f222a3cd43b3
[INFO] running `"docker" "start" "-a" "3dc98566b1b565803922620fb8f07c7a74156ca6d69ca1a21142f222a3cd43b3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/maze_solver-b623d41f019f550e
[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" "3dc98566b1b565803922620fb8f07c7a74156ca6d69ca1a21142f222a3cd43b3"`
[INFO] running `"docker" "rm" "-f" "3dc98566b1b565803922620fb8f07c7a74156ca6d69ca1a21142f222a3cd43b3"`
[INFO] [stdout] 3dc98566b1b565803922620fb8f07c7a74156ca6d69ca1a21142f222a3cd43b3