[INFO] updating cached repository tiuuuuPJ/antbook
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tiuuuuPJ/antbook
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tiuuuuPJ/antbook" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tiuuuuPJ/antbook"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tiuuuuPJ/antbook'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tiuuuuPJ/antbook" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiuuuuPJ/antbook"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiuuuuPJ/antbook'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2ce9c4b9cffbd20d86b9d47971e58ec6b1418e08
[INFO] sha for GitHub repo tiuuuuPJ/antbook: 2ce9c4b9cffbd20d86b9d47971e58ec6b1418e08
[INFO] validating manifest of tiuuuuPJ/antbook 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 tiuuuuPJ/antbook 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 tiuuuuPJ/antbook
[INFO] finished frobbing tiuuuuPJ/antbook
[INFO] frobbed toml for tiuuuuPJ/antbook written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tiuuuuPJ/antbook/Cargo.toml
[INFO] started frobbing tiuuuuPJ/antbook
[INFO] finished frobbing tiuuuuPJ/antbook
[INFO] frobbed toml for tiuuuuPJ/antbook written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiuuuuPJ/antbook/Cargo.toml
[INFO] crate tiuuuuPJ/antbook 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 tiuuuuPJ/antbook against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiuuuuPJ/antbook:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] f1b1025bfd4be0fab14c3c420acc7c06d5d6ceeaf4a7b0694ff217b2bdcc94ba
[INFO] running `"docker" "start" "-a" "f1b1025bfd4be0fab14c3c420acc7c06d5d6ceeaf4a7b0694ff217b2bdcc94ba"`
[INFO] [stderr]    Compiling antbook v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function `DFS` should have a snake case name
[INFO] [stderr]   --> src/chapter-2/maze.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn DFS(map: &mut Vec<Vec<char>>, flag: &mut bool) -> bool {
[INFO] [stderr]    |    ^^^ help: convert the identifier to snake case: `dfs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `"docker" "inspect" "f1b1025bfd4be0fab14c3c420acc7c06d5d6ceeaf4a7b0694ff217b2bdcc94ba"`
[INFO] running `"docker" "rm" "-f" "f1b1025bfd4be0fab14c3c420acc7c06d5d6ceeaf4a7b0694ff217b2bdcc94ba"`
[INFO] [stdout] f1b1025bfd4be0fab14c3c420acc7c06d5d6ceeaf4a7b0694ff217b2bdcc94ba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiuuuuPJ/antbook:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5816ff814f01a05cf32d5971e9f3911ada2192092b464a423c4a3d64374edf44
[INFO] running `"docker" "start" "-a" "5816ff814f01a05cf32d5971e9f3911ada2192092b464a423c4a3d64374edf44"`
[INFO] [stderr]    Compiling antbook v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function `DFS` should have a snake case name
[INFO] [stderr]   --> src/chapter-2/maze.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn DFS(map: &mut Vec<Vec<char>>, flag: &mut bool) -> bool {
[INFO] [stderr]    |    ^^^ help: convert the identifier to snake case: `dfs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `"docker" "inspect" "5816ff814f01a05cf32d5971e9f3911ada2192092b464a423c4a3d64374edf44"`
[INFO] running `"docker" "rm" "-f" "5816ff814f01a05cf32d5971e9f3911ada2192092b464a423c4a3d64374edf44"`
[INFO] [stdout] 5816ff814f01a05cf32d5971e9f3911ada2192092b464a423c4a3d64374edf44
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiuuuuPJ/antbook:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 7c807494b058778aa85deb3e96def30bfe1a02173bc1261c82097934260eb81f
[INFO] running `"docker" "start" "-a" "7c807494b058778aa85deb3e96def30bfe1a02173bc1261c82097934260eb81f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/1_1-a3f999e222194080
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test check_answer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/1_2-b440f6ab489b435c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/crater/target/debug/deps/1_3-a9557cda88a20992
[INFO] [stdout] test answer_check ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test answer_check ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/2_1-74405fcdbfbec317
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/2_2-bbda6699be542758
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test check_answer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_read_test-21a92c8d474d0b12
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/greedy-5baf060c5136fa8b
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/maze-f86e18337b3b6f3f
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [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] [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" "7c807494b058778aa85deb3e96def30bfe1a02173bc1261c82097934260eb81f"`
[INFO] running `"docker" "rm" "-f" "7c807494b058778aa85deb3e96def30bfe1a02173bc1261c82097934260eb81f"`
[INFO] [stdout] 7c807494b058778aa85deb3e96def30bfe1a02173bc1261c82097934260eb81f