[INFO] updating cached repository cite-reader/slide-puzzle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cite-reader/slide-puzzle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cite-reader/slide-puzzle" "work/ex/beta-1.38-1/sources/1.37.0/gh/cite-reader/slide-puzzle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cite-reader/slide-puzzle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cite-reader/slide-puzzle" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cite-reader/slide-puzzle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cite-reader/slide-puzzle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f288a9154b1793a87fb40593cc65271edafd7c6
[INFO] sha for GitHub repo cite-reader/slide-puzzle: 5f288a9154b1793a87fb40593cc65271edafd7c6
[INFO] validating manifest of cite-reader/slide-puzzle on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cite-reader/slide-puzzle on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cite-reader/slide-puzzle
[INFO] finished frobbing cite-reader/slide-puzzle
[INFO] frobbed toml for cite-reader/slide-puzzle written to work/ex/beta-1.38-1/sources/1.37.0/gh/cite-reader/slide-puzzle/Cargo.toml
[INFO] started frobbing cite-reader/slide-puzzle
[INFO] finished frobbing cite-reader/slide-puzzle
[INFO] frobbed toml for cite-reader/slide-puzzle written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cite-reader/slide-puzzle/Cargo.toml
[INFO] crate cite-reader/slide-puzzle already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cite-reader/slide-puzzle against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cite-reader/slide-puzzle:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 51ce326afcac6ecbf3f1f15603a3bb87b84869dea670c642438aac64c299e500
[INFO] running `"docker" "start" "-a" "51ce326afcac6ecbf3f1f15603a3bb87b84869dea670c642438aac64c299e500"`
[INFO] [stderr]    Compiling slide-puzzle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/game.rs:172:21
[INFO] [stderr]     |
[INFO] [stderr] 172 |         for tile in (1 .. self.cells.len() - 1) {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "51ce326afcac6ecbf3f1f15603a3bb87b84869dea670c642438aac64c299e500"`
[INFO] running `"docker" "rm" "-f" "51ce326afcac6ecbf3f1f15603a3bb87b84869dea670c642438aac64c299e500"`
[INFO] [stdout] 51ce326afcac6ecbf3f1f15603a3bb87b84869dea670c642438aac64c299e500
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cite-reader/slide-puzzle:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6d6ab63964ca3c79e7bdbc971fefe2026bc5a25e3bcdb27f0d5ab3e320272343
[INFO] running `"docker" "start" "-a" "6d6ab63964ca3c79e7bdbc971fefe2026bc5a25e3bcdb27f0d5ab3e320272343"`
[INFO] [stderr]    Compiling slide-puzzle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/game.rs:172:21
[INFO] [stderr]     |
[INFO] [stderr] 172 |         for tile in (1 .. self.cells.len() - 1) {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "6d6ab63964ca3c79e7bdbc971fefe2026bc5a25e3bcdb27f0d5ab3e320272343"`
[INFO] running `"docker" "rm" "-f" "6d6ab63964ca3c79e7bdbc971fefe2026bc5a25e3bcdb27f0d5ab3e320272343"`
[INFO] [stdout] 6d6ab63964ca3c79e7bdbc971fefe2026bc5a25e3bcdb27f0d5ab3e320272343
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cite-reader/slide-puzzle:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 728065fba33513e36631de13447d1f7c35982d60ad3656810185ef67faae27c7
[INFO] running `"docker" "start" "-a" "728065fba33513e36631de13447d1f7c35982d60ad3656810185ef67faae27c7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slide_puzzle-1f72ea0557a8fd8b
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test game::test::bad_boards_do_not_build ... ok
[INFO] [stdout] test game::test::trivial_move_right ... ok
[INFO] [stdout] test game::test::bad_movements_fail ... ok
[INFO] [stdout] test game::test::trivial_board_construction ... ok
[INFO] [stdout] test search::tests::board_2 ... ok
[INFO] [stdout] test search::tests::board_1 ... ok
[INFO] [stdout] test search::tests::board_3 ... ok
[INFO] [stdout] test search::tests::board_4 ... ok
[INFO] [stdout] test search::tests::board_6 ... ok
[INFO] [stdout] test search::tests::big_board ... ok
[INFO] [stdout] test search::tests::board_5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/terminal_puzzle-2fcf730627d32f9c
[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 slide_puzzle
[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" "728065fba33513e36631de13447d1f7c35982d60ad3656810185ef67faae27c7"`
[INFO] running `"docker" "rm" "-f" "728065fba33513e36631de13447d1f7c35982d60ad3656810185ef67faae27c7"`
[INFO] [stdout] 728065fba33513e36631de13447d1f7c35982d60ad3656810185ef67faae27c7