[INFO] updating cached repository kbsymanz/maze-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kbsymanz/maze-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kbsymanz/maze-rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kbsymanz/maze-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kbsymanz/maze-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kbsymanz/maze-rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/kbsymanz/maze-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/kbsymanz/maze-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a75cd76535d340c6bfca094cbb8801215cbe9072
[INFO] sha for GitHub repo kbsymanz/maze-rust: a75cd76535d340c6bfca094cbb8801215cbe9072
[INFO] validating manifest of kbsymanz/maze-rust on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kbsymanz/maze-rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kbsymanz/maze-rust
[INFO] finished frobbing kbsymanz/maze-rust
[INFO] frobbed toml for kbsymanz/maze-rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kbsymanz/maze-rust/Cargo.toml
[INFO] started frobbing kbsymanz/maze-rust
[INFO] finished frobbing kbsymanz/maze-rust
[INFO] frobbed toml for kbsymanz/maze-rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/kbsymanz/maze-rust/Cargo.toml
[INFO] crate kbsymanz/maze-rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kbsymanz/maze-rust against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kbsymanz/maze-rust:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] b882ff60131b11d467652e72679026131c69b32642e70d127995e3086933f5d8
[INFO] running `"docker" "start" "-a" "b882ff60131b11d467652e72679026131c69b32642e70d127995e3086933f5d8"`
[INFO] [stderr]    Compiling gdk-pixbuf v0.1.2
[INFO] [stderr]    Compiling gio v0.1.2
[INFO] [stderr]    Compiling gdk v0.5.2
[INFO] [stderr]    Compiling gtk v0.1.2
[INFO] [stderr]    Compiling serde v0.9.13
[INFO] [stderr]    Compiling gio-sys v0.3.3
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.3.3
[INFO] [stderr]    Compiling pango-sys v0.3.3
[INFO] [stderr]    Compiling gdk-sys v0.3.3
[INFO] [stderr]    Compiling gtk-sys v0.3.3
[INFO] [stderr]    Compiling num-complex v0.1.37
[INFO] [stderr]    Compiling deflate v0.7.6
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling clap v2.23.2
[INFO] [stderr]    Compiling num-bigint v0.1.37
[INFO] [stderr]    Compiling arrayvec v0.3.22
[INFO] [stderr]    Compiling serde_derive v0.9.13
[INFO] [stderr]    Compiling jpeg-decoder v0.1.12
[INFO] [stderr]    Compiling rusttype v0.2.1
[INFO] [stderr]    Compiling png v0.6.2
[INFO] [stderr]    Compiling pango v0.1.2
[INFO] [stderr]    Compiling num-rational v0.1.36
[INFO] [stderr]    Compiling quickcheck v0.2.27
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling image v0.12.3
[INFO] [stderr]    Compiling nalgebra v0.5.1
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling imageproc v0.7.0
[INFO] [stderr]    Compiling maze-rust v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `"docker" "inspect" "b882ff60131b11d467652e72679026131c69b32642e70d127995e3086933f5d8"`
[INFO] running `"docker" "rm" "-f" "b882ff60131b11d467652e72679026131c69b32642e70d127995e3086933f5d8"`
[INFO] [stdout] b882ff60131b11d467652e72679026131c69b32642e70d127995e3086933f5d8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kbsymanz/maze-rust:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9620f45b14888900077f40bdd264ebb774bf1279bd6354d74a9ce5adbf263ae4
[INFO] running `"docker" "start" "-a" "9620f45b14888900077f40bdd264ebb774bf1279bd6354d74a9ce5adbf263ae4"`
[INFO] [stderr]    Compiling maze-rust v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `kbsymanz_maze::grid`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use kbsymanz_maze::grid;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `main_gui`
[INFO] [stderr]   --> src/main.rs:11:36
[INFO] [stderr]    |
[INFO] [stderr] 11 | use kbsymanz_maze::gui::main_gui::{main_gui};
[INFO] [stderr]    |                                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `App`, `Arg`
[INFO] [stderr]   --> src/main.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | use clap::{App, Arg};
[INFO] [stderr]    |            ^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::collections::HashSet;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `"docker" "inspect" "9620f45b14888900077f40bdd264ebb774bf1279bd6354d74a9ce5adbf263ae4"`
[INFO] running `"docker" "rm" "-f" "9620f45b14888900077f40bdd264ebb774bf1279bd6354d74a9ce5adbf263ae4"`
[INFO] [stdout] 9620f45b14888900077f40bdd264ebb774bf1279bd6354d74a9ce5adbf263ae4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kbsymanz/maze-rust:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 3361736710d1d9be0a469f6311f9bfff241b75cd1fa229d4810c8fc9aa1dbc34
[INFO] running `"docker" "start" "-a" "3361736710d1d9be0a469f6311f9bfff241b75cd1fa229d4810c8fc9aa1dbc34"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kbsymanz_maze-3406fc7cfc7ae0ab
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::get_neighbors_invalid ... ok
[INFO] [stdout] test test::get_neighbors_test_corners ... ok
[INFO] [stdout] test test::get_neighbors_sides ... ok
[INFO] [stdout] test test::get_neighbors_middle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/maze-24fbbf4a7b8c29fd
[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] [stderr]    Doc-tests kbsymanz_maze
[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" "3361736710d1d9be0a469f6311f9bfff241b75cd1fa229d4810c8fc9aa1dbc34"`
[INFO] running `"docker" "rm" "-f" "3361736710d1d9be0a469f6311f9bfff241b75cd1fa229d4810c8fc9aa1dbc34"`
[INFO] [stdout] 3361736710d1d9be0a469f6311f9bfff241b75cd1fa229d4810c8fc9aa1dbc34