Dec 06 16:19:57.841 INFO testing 02alexander/maze-solver against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 16:19:57.841 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 16:19:58.188 INFO [stdout] 8429bc8bd3bdd91469f93bc0b3cb68c966ccb92366534a0492c5c94e68e7fd37
Dec 06 16:19:58.191 INFO running `"docker" "start" "-a" "8429bc8bd3bdd91469f93bc0b3cb68c966ccb92366534a0492c5c94e68e7fd37"`
Dec 06 16:19:59.542 INFO [stderr] usermod: no changes
Dec 06 16:19:59.648 INFO [stderr]    Compiling flate2 v0.2.20
Dec 06 16:20:01.350 INFO [stderr]    Compiling imagefmt v4.0.0
Dec 06 16:20:03.542 INFO [stderr]    Compiling maze-solver v0.1.0 (/source)
Dec 06 16:20:04.184 INFO [stderr] warning: unused imports: `read`, `write`
Dec 06 16:20:04.184 INFO [stderr]  --> src/main.rs:3:16
Dec 06 16:20:04.185 INFO [stderr]   |
Dec 06 16:20:04.185 INFO [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType};
Dec 06 16:20:04.185 INFO [stderr]   |                ^^^^  ^^^^^
Dec 06 16:20:04.185 INFO [stderr]   |
Dec 06 16:20:04.185 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 16:20:04.185 INFO [stderr] 
Dec 06 16:20:04.185 INFO [stderr] warning: unused import: `std::mem::drop`
Dec 06 16:20:04.185 INFO [stderr]  --> src/tree.rs:2:5
Dec 06 16:20:04.185 INFO [stderr]   |
Dec 06 16:20:04.185 INFO [stderr] 2 | use std::mem::drop;
Dec 06 16:20:04.185 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 06 16:20:04.185 INFO [stderr] 
Dec 06 16:20:04.185 INFO [stderr] warning: unused import: `Node`
Dec 06 16:20:04.185 INFO [stderr]  --> src/path_to_end.rs:3:35
Dec 06 16:20:04.185 INFO [stderr]   |
Dec 06 16:20:04.185 INFO [stderr] 3 | use super::tree::{QuaternaryTree, Node, Link};
Dec 06 16:20:04.185 INFO [stderr]   |                                   ^^^^
Dec 06 16:20:04.185 INFO [stderr] 
Dec 06 16:20:04.297 INFO [stderr] warning: variable does not need to be mutable
Dec 06 16:20:04.297 INFO [stderr]   --> src/tree.rs:41:8
Dec 06 16:20:04.297 INFO [stderr]    |
Dec 06 16:20:04.297 INFO [stderr] 41 |             let mut cur = &mut *next.take().unwrap();
Dec 06 16:20:04.297 INFO [stderr]    |                 ----^^^
Dec 06 16:20:04.297 INFO [stderr]    |                 |
Dec 06 16:20:04.297 INFO [stderr]    |                 help: remove this `mut`
Dec 06 16:20:04.297 INFO [stderr]    |
Dec 06 16:20:04.297 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 16:20:04.297 INFO [stderr] 
Dec 06 16:20:04.325 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:20:04.325 INFO [stderr]   --> src/main.rs:20:2
Dec 06 16:20:04.325 INFO [stderr]    |
Dec 06 16:20:04.325 INFO [stderr] 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Dec 06 16:20:04.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:20:04.325 INFO [stderr]    |
Dec 06 16:20:04.325 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 16:20:04.325 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:20:04.325 INFO [stderr] 
Dec 06 16:20:06.398 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.83s
Dec 06 16:20:06.401 INFO [stderr] su: No module specific data is present
Dec 06 16:20:07.896 INFO running `"docker" "inspect" "8429bc8bd3bdd91469f93bc0b3cb68c966ccb92366534a0492c5c94e68e7fd37"`
Dec 06 16:20:08.290 INFO running `"docker" "rm" "-f" "8429bc8bd3bdd91469f93bc0b3cb68c966ccb92366534a0492c5c94e68e7fd37"`
Dec 06 16:20:08.632 INFO [stdout] 8429bc8bd3bdd91469f93bc0b3cb68c966ccb92366534a0492c5c94e68e7fd37
Dec 06 16:20:08.640 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 16:20:09.132 INFO [stdout] e0a7efc9a17b0042b7d51739e300b1ecfa8f011be3477f2a668190d32a298519
Dec 06 16:20:09.135 INFO running `"docker" "start" "-a" "e0a7efc9a17b0042b7d51739e300b1ecfa8f011be3477f2a668190d32a298519"`
Dec 06 16:20:11.056 INFO [stderr] usermod: no changes
Dec 06 16:20:11.124 INFO [stderr]    Compiling maze-solver v0.1.0 (/source)
Dec 06 16:20:11.799 INFO [stderr] warning: unused imports: `read`, `write`
Dec 06 16:20:11.799 INFO [stderr]  --> src/main.rs:3:16
Dec 06 16:20:11.799 INFO [stderr]   |
Dec 06 16:20:11.799 INFO [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType};
Dec 06 16:20:11.799 INFO [stderr]   |                ^^^^  ^^^^^
Dec 06 16:20:11.799 INFO [stderr]   |
Dec 06 16:20:11.804 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 16:20:11.804 INFO [stderr] 
Dec 06 16:20:11.804 INFO [stderr] warning: unused import: `std::mem::drop`
Dec 06 16:20:11.804 INFO [stderr]  --> src/tree.rs:2:5
Dec 06 16:20:11.804 INFO [stderr]   |
Dec 06 16:20:11.804 INFO [stderr] 2 | use std::mem::drop;
Dec 06 16:20:11.804 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 06 16:20:11.804 INFO [stderr] 
Dec 06 16:20:12.032 INFO [stderr] warning: variable does not need to be mutable
Dec 06 16:20:12.032 INFO [stderr]   --> src/tree.rs:41:8
Dec 06 16:20:12.032 INFO [stderr]    |
Dec 06 16:20:12.032 INFO [stderr] 41 |             let mut cur = &mut *next.take().unwrap();
Dec 06 16:20:12.032 INFO [stderr]    |                 ----^^^
Dec 06 16:20:12.032 INFO [stderr]    |                 |
Dec 06 16:20:12.032 INFO [stderr]    |                 help: remove this `mut`
Dec 06 16:20:12.032 INFO [stderr]    |
Dec 06 16:20:12.032 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 16:20:12.032 INFO [stderr] 
Dec 06 16:20:12.104 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:20:12.104 INFO [stderr]   --> src/main.rs:20:2
Dec 06 16:20:12.104 INFO [stderr]    |
Dec 06 16:20:12.104 INFO [stderr] 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Dec 06 16:20:12.104 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:20:12.104 INFO [stderr]    |
Dec 06 16:20:12.104 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 16:20:12.104 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:20:12.104 INFO [stderr] 
Dec 06 16:20:13.184 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 06 16:20:13.184 INFO [stderr] su: No module specific data is present
Dec 06 16:20:13.838 INFO running `"docker" "inspect" "e0a7efc9a17b0042b7d51739e300b1ecfa8f011be3477f2a668190d32a298519"`
Dec 06 16:20:14.116 INFO running `"docker" "rm" "-f" "e0a7efc9a17b0042b7d51739e300b1ecfa8f011be3477f2a668190d32a298519"`
Dec 06 16:20:14.512 INFO [stdout] e0a7efc9a17b0042b7d51739e300b1ecfa8f011be3477f2a668190d32a298519
Dec 06 16:20:14.514 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 16:20:14.947 INFO [stdout] ee6d5f7ec36992f004d53850704d26ece2bbee7e5111fbfd36b7d5ef0ab69200
Dec 06 16:20:14.954 INFO running `"docker" "start" "-a" "ee6d5f7ec36992f004d53850704d26ece2bbee7e5111fbfd36b7d5ef0ab69200"`
Dec 06 16:20:16.269 INFO [stderr] usermod: no changes
Dec 06 16:20:16.336 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 06 16:20:16.336 INFO [stderr]      Running /target/debug/deps/maze_solver-77994ae9c87d76ae
Dec 06 16:20:16.342 INFO [stdout] 
Dec 06 16:20:16.342 INFO [stdout] running 6 tests
Dec 06 16:20:16.352 INFO [stdout] test maze::test::from ... ok
Dec 06 16:20:16.352 INFO [stdout] test path_to_end::test::t_path_to_end ... ok
Dec 06 16:20:16.352 INFO [stdout] test maze::test::test_find_end ... ok
Dec 06 16:20:16.352 INFO [stdout] test maze_to_tree::test::t_maze_to_tree ... ok
Dec 06 16:20:16.353 INFO [stdout] test maze::test::test_find_start ... ok
Dec 06 16:20:16.353 INFO [stdout] test maze_to_tree::test::t_get_tile ... ok
Dec 06 16:20:16.353 INFO [stdout] 
Dec 06 16:20:16.353 INFO [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 16:20:16.353 INFO [stdout] 
Dec 06 16:20:16.355 INFO [stderr] su: No module specific data is present
Dec 06 16:20:17.207 INFO running `"docker" "inspect" "ee6d5f7ec36992f004d53850704d26ece2bbee7e5111fbfd36b7d5ef0ab69200"`
Dec 06 16:20:17.426 INFO running `"docker" "rm" "-f" "ee6d5f7ec36992f004d53850704d26ece2bbee7e5111fbfd36b7d5ef0ab69200"`
Dec 06 16:20:17.796 INFO [stdout] ee6d5f7ec36992f004d53850704d26ece2bbee7e5111fbfd36b7d5ef0ab69200