[INFO] updating cached repository https://github.com/lreynolds18/maze-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] 5f8025d73c2046ad6dabd37e51c1e8c2d8f72b73
[INFO] testing lreynolds18/maze-solver against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flreynolds18%2Fmaze-solver" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lreynolds18/maze-solver on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lreynolds18/maze-solver
[INFO] finished tweaking git repo https://github.com/lreynolds18/maze-solver
[INFO] tweaked toml for git repo https://github.com/lreynolds18/maze-solver written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lreynolds18/maze-solver already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] c8e6ec8a4cfc8ea129dd51b795484fa084deb37b4c2d9a260350872a4a7b25c2
[INFO] running `"docker" "start" "-a" "c8e6ec8a4cfc8ea129dd51b795484fa084deb37b4c2d9a260350872a4a7b25c2"`
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling x11-dl v2.16.0
[INFO] [stderr]    Compiling shared_library v0.1.7
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling png v0.10.0
[INFO] [stderr]    Compiling piston2d-graphics v0.22.0
[INFO] [stderr]    Compiling pistoncore-input v0.19.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.9.10
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]    Compiling pistoncore-window v0.29.0
[INFO] [stderr]    Compiling wayland-protocols v0.9.10
[INFO] [stderr]    Compiling wayland-kbd v0.9.1
[INFO] [stderr]    Compiling pistoncore-event_loop v0.34.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling piston v0.34.0
[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 glutin v0.9.2
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.47.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.40.1
[INFO] [stderr]    Compiling maze_solver v0.1.0 (/opt/rustwide/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 22.96s
[INFO] running `"docker" "inspect" "c8e6ec8a4cfc8ea129dd51b795484fa084deb37b4c2d9a260350872a4a7b25c2"`
[INFO] running `"docker" "rm" "-f" "c8e6ec8a4cfc8ea129dd51b795484fa084deb37b4c2d9a260350872a4a7b25c2"`
[INFO] [stdout] c8e6ec8a4cfc8ea129dd51b795484fa084deb37b4c2d9a260350872a4a7b25c2
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 67cdce4c846c069750f711745e6f61c84ab68d1adf2a7a823b86dc459fdb5029
[INFO] running `"docker" "start" "-a" "67cdce4c846c069750f711745e6f61c84ab68d1adf2a7a823b86dc459fdb5029"`
[INFO] [stderr]    Compiling maze_solver v0.1.0 (/opt/rustwide/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 1.59s
[INFO] running `"docker" "inspect" "67cdce4c846c069750f711745e6f61c84ab68d1adf2a7a823b86dc459fdb5029"`
[INFO] running `"docker" "rm" "-f" "67cdce4c846c069750f711745e6f61c84ab68d1adf2a7a823b86dc459fdb5029"`
[INFO] [stdout] 67cdce4c846c069750f711745e6f61c84ab68d1adf2a7a823b86dc459fdb5029
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 5d57b0ee1ae2702df1ac16d486a4448256a15134a41f71c2bfc298911bcf0d8e
[INFO] running `"docker" "start" "-a" "5d57b0ee1ae2702df1ac16d486a4448256a15134a41f71c2bfc298911bcf0d8e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/maze_solver-e73e72610473d27a
[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" "5d57b0ee1ae2702df1ac16d486a4448256a15134a41f71c2bfc298911bcf0d8e"`
[INFO] running `"docker" "rm" "-f" "5d57b0ee1ae2702df1ac16d486a4448256a15134a41f71c2bfc298911bcf0d8e"`
[INFO] [stdout] 5d57b0ee1ae2702df1ac16d486a4448256a15134a41f71c2bfc298911bcf0d8e