[INFO] updating cached repository bpglaser/maze_solver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bpglaser/maze_solver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bpglaser/maze_solver" "work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/bpglaser/maze_solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/bpglaser/maze_solver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bpglaser/maze_solver" "work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/bpglaser/maze_solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/bpglaser/maze_solver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae3a55ae19d3e4d4e2c5b342c6af7a775b8c1f39
[INFO] sha for GitHub repo bpglaser/maze_solver: ae3a55ae19d3e4d4e2c5b342c6af7a775b8c1f39
[INFO] validating manifest of bpglaser/maze_solver on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bpglaser/maze_solver on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bpglaser/maze_solver
[INFO] finished frobbing bpglaser/maze_solver
[INFO] frobbed toml for bpglaser/maze_solver written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/bpglaser/maze_solver/Cargo.toml
[INFO] started frobbing bpglaser/maze_solver
[INFO] finished frobbing bpglaser/maze_solver
[INFO] frobbed toml for bpglaser/maze_solver written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/bpglaser/maze_solver/Cargo.toml
[INFO] crate bpglaser/maze_solver has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bpglaser/maze_solver against try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-7/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/bpglaser/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=forbid" "-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" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 93432e7977ad2dc1f68454977c725ab27717f2424654930507d9e9600bb47eed
[INFO] running `"docker" "start" "-a" "93432e7977ad2dc1f68454977c725ab27717f2424654930507d9e9600bb47eed"`
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking glib-sys v0.3.2
[INFO] [stderr]     Checking cairo-sys-rs v0.3.2
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking clap v2.19.3
[INFO] [stderr]     Checking image v0.12.1
[INFO] [stderr]     Checking gobject-sys v0.3.2
[INFO] [stderr]     Checking gio-sys v0.3.2
[INFO] [stderr]     Checking pango-sys v0.3.2
[INFO] [stderr]     Checking glib v0.1.1
[INFO] [stderr]     Checking atk-sys v0.3.2
[INFO] [stderr]     Checking cairo-rs v0.1.1
[INFO] [stderr]     Checking pango v0.1.1
[INFO] [stderr]     Checking gdk-pixbuf-sys v0.3.2
[INFO] [stderr]     Checking gio v0.1.1
[INFO] [stderr]     Checking gdk-pixbuf v0.1.1
[INFO] [stderr]     Checking gdk-sys v0.3.2
[INFO] [stderr]     Checking gtk-sys v0.3.2
[INFO] [stderr]     Checking gdk v0.5.1
[INFO] [stderr]     Checking gtk v0.1.1
[INFO] [stderr]     Checking maze_solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Grid`, `Point`
[INFO] [stderr]  --> src/main.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 | use maze_solver::grid::{Point, Grid};
[INFO] [stderr]   |                         ^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Grid`, `Point`
[INFO] [stderr]  --> src/main.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 | use maze_solver::grid::{Point, Grid};
[INFO] [stderr]   |                         ^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `loaded_image`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let loaded_image = open(path).expect("Error opening file").grayscale();
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider using `_loaded_image` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `loaded_image`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let loaded_image = open(path).expect("Error opening file").grayscale();
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider using `_loaded_image` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.52s
[INFO] running `"docker" "inspect" "93432e7977ad2dc1f68454977c725ab27717f2424654930507d9e9600bb47eed"`
[INFO] running `"docker" "rm" "-f" "93432e7977ad2dc1f68454977c725ab27717f2424654930507d9e9600bb47eed"`
[INFO] [stdout] 93432e7977ad2dc1f68454977c725ab27717f2424654930507d9e9600bb47eed