Dec 06 16:20:17.877 INFO testing 02alexander/maze-solver against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 16:20:17.878 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 16:20:18.498 INFO [stdout] 679422e9e4f5119099d122e91faa19c93ea4f08411d2b3b885f4c3c709d8d12a
Dec 06 16:20:18.500 INFO running `"docker" "start" "-a" "679422e9e4f5119099d122e91faa19c93ea4f08411d2b3b885f4c3c709d8d12a"`
Dec 06 16:20:19.892 INFO [stderr] usermod: no changes
Dec 06 16:20:19.961 INFO [stderr]    Compiling flate2 v0.2.20
Dec 06 16:20:21.652 INFO [stderr]    Compiling imagefmt v4.0.0
Dec 06 16:20:23.772 INFO [stderr]    Compiling maze-solver v0.1.0 (/source)
Dec 06 16:20:24.492 INFO [stderr] warning: unused imports: `read`, `write`
Dec 06 16:20:24.492 INFO [stderr]  --> src/main.rs:3:16
Dec 06 16:20:24.492 INFO [stderr]   |
Dec 06 16:20:24.492 INFO [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType};
Dec 06 16:20:24.492 INFO [stderr]   |                ^^^^  ^^^^^
Dec 06 16:20:24.492 INFO [stderr]   |
Dec 06 16:20:24.492 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 16:20:24.492 INFO [stderr] 
Dec 06 16:20:24.492 INFO [stderr] warning: unused import: `std::mem::drop`
Dec 06 16:20:24.492 INFO [stderr]  --> src/tree.rs:2:5
Dec 06 16:20:24.492 INFO [stderr]   |
Dec 06 16:20:24.492 INFO [stderr] 2 | use std::mem::drop;
Dec 06 16:20:24.492 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 06 16:20:24.492 INFO [stderr] 
Dec 06 16:20:24.492 INFO [stderr] warning: unused import: `Node`
Dec 06 16:20:24.492 INFO [stderr]  --> src/path_to_end.rs:3:35
Dec 06 16:20:24.492 INFO [stderr]   |
Dec 06 16:20:24.492 INFO [stderr] 3 | use super::tree::{QuaternaryTree, Node, Link};
Dec 06 16:20:24.492 INFO [stderr]   |                                   ^^^^
Dec 06 16:20:24.492 INFO [stderr] 
Dec 06 16:20:24.632 INFO [stderr] warning: variable does not need to be mutable
Dec 06 16:20:24.632 INFO [stderr]   --> src/tree.rs:41:8
Dec 06 16:20:24.632 INFO [stderr]    |
Dec 06 16:20:24.632 INFO [stderr] 41 |             let mut cur = &mut *next.take().unwrap();
Dec 06 16:20:24.632 INFO [stderr]    |                 ----^^^
Dec 06 16:20:24.632 INFO [stderr]    |                 |
Dec 06 16:20:24.632 INFO [stderr]    |                 help: remove this `mut`
Dec 06 16:20:24.632 INFO [stderr]    |
Dec 06 16:20:24.632 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 16:20:24.632 INFO [stderr] 
Dec 06 16:20:24.665 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:20:24.665 INFO [stderr]   --> src/main.rs:20:2
Dec 06 16:20:24.665 INFO [stderr]    |
Dec 06 16:20:24.666 INFO [stderr] 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Dec 06 16:20:24.666 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:20:24.666 INFO [stderr]    |
Dec 06 16:20:24.666 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 16:20:24.667 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:20:24.667 INFO [stderr] 
Dec 06 16:20:26.624 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.71s
Dec 06 16:20:26.624 INFO [stderr] su: No module specific data is present
Dec 06 16:20:27.707 INFO running `"docker" "inspect" "679422e9e4f5119099d122e91faa19c93ea4f08411d2b3b885f4c3c709d8d12a"`
Dec 06 16:20:27.992 INFO running `"docker" "rm" "-f" "679422e9e4f5119099d122e91faa19c93ea4f08411d2b3b885f4c3c709d8d12a"`
Dec 06 16:20:28.296 INFO [stdout] 679422e9e4f5119099d122e91faa19c93ea4f08411d2b3b885f4c3c709d8d12a
Dec 06 16:20:28.304 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 16:20:28.876 INFO [stdout] dab2cbcb4b306df13efa3eb82ecce49cc3cc829d078beac11cea1104f4c02409
Dec 06 16:20:28.878 INFO running `"docker" "start" "-a" "dab2cbcb4b306df13efa3eb82ecce49cc3cc829d078beac11cea1104f4c02409"`
Dec 06 16:20:29.844 INFO [stderr] usermod: no changes
Dec 06 16:20:29.956 INFO [stderr]    Compiling maze-solver v0.1.0 (/source)
Dec 06 16:20:30.656 INFO [stderr] warning: unused imports: `read`, `write`
Dec 06 16:20:30.656 INFO [stderr]  --> src/main.rs:3:16
Dec 06 16:20:30.656 INFO [stderr]   |
Dec 06 16:20:30.656 INFO [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType};
Dec 06 16:20:30.656 INFO [stderr]   |                ^^^^  ^^^^^
Dec 06 16:20:30.656 INFO [stderr]   |
Dec 06 16:20:30.656 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 16:20:30.656 INFO [stderr] 
Dec 06 16:20:30.656 INFO [stderr] warning: unused import: `std::mem::drop`
Dec 06 16:20:30.656 INFO [stderr]  --> src/tree.rs:2:5
Dec 06 16:20:30.656 INFO [stderr]   |
Dec 06 16:20:30.656 INFO [stderr] 2 | use std::mem::drop;
Dec 06 16:20:30.656 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 06 16:20:30.656 INFO [stderr] 
Dec 06 16:20:30.868 INFO [stderr] warning: variable does not need to be mutable
Dec 06 16:20:30.868 INFO [stderr]   --> src/tree.rs:41:8
Dec 06 16:20:30.868 INFO [stderr]    |
Dec 06 16:20:30.868 INFO [stderr] 41 |             let mut cur = &mut *next.take().unwrap();
Dec 06 16:20:30.868 INFO [stderr]    |                 ----^^^
Dec 06 16:20:30.868 INFO [stderr]    |                 |
Dec 06 16:20:30.868 INFO [stderr]    |                 help: remove this `mut`
Dec 06 16:20:30.868 INFO [stderr]    |
Dec 06 16:20:30.868 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 16:20:30.868 INFO [stderr] 
Dec 06 16:20:30.932 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:20:30.932 INFO [stderr]   --> src/main.rs:20:2
Dec 06 16:20:30.932 INFO [stderr]    |
Dec 06 16:20:30.932 INFO [stderr] 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Dec 06 16:20:30.932 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:20:30.932 INFO [stderr]    |
Dec 06 16:20:30.932 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 16:20:30.932 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:20:30.932 INFO [stderr] 
Dec 06 16:20:31.980 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 06 16:20:31.980 INFO [stderr] su: No module specific data is present
Dec 06 16:20:32.744 INFO running `"docker" "inspect" "dab2cbcb4b306df13efa3eb82ecce49cc3cc829d078beac11cea1104f4c02409"`
Dec 06 16:20:33.088 INFO running `"docker" "rm" "-f" "dab2cbcb4b306df13efa3eb82ecce49cc3cc829d078beac11cea1104f4c02409"`
Dec 06 16:20:33.396 INFO [stdout] dab2cbcb4b306df13efa3eb82ecce49cc3cc829d078beac11cea1104f4c02409
Dec 06 16:20:33.400 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 16:20:33.928 INFO [stdout] a4e754e22eedf04dc539f65ace837fa3441ff556e609cb3132455741012aa061
Dec 06 16:20:33.930 INFO running `"docker" "start" "-a" "a4e754e22eedf04dc539f65ace837fa3441ff556e609cb3132455741012aa061"`
Dec 06 16:20:35.040 INFO [stderr] usermod: no changes
Dec 06 16:20:35.106 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 06 16:20:35.124 INFO [stderr]      Running /target/debug/deps/maze_solver-bb47b0e39fdefe42
Dec 06 16:20:35.128 INFO [stdout] 
Dec 06 16:20:35.128 INFO [stdout] running 6 tests
Dec 06 16:20:35.128 INFO [stdout] test maze_to_tree::test::t_get_tile ... ok
Dec 06 16:20:35.128 INFO [stdout] test maze::test::test_find_end ... ok
Dec 06 16:20:35.128 INFO [stdout] test maze::test::test_find_start ... ok
Dec 06 16:20:35.128 INFO [stdout] test maze::test::from ... ok
Dec 06 16:20:35.129 INFO [stdout] test path_to_end::test::t_path_to_end ... ok
Dec 06 16:20:35.129 INFO [stdout] test maze_to_tree::test::t_maze_to_tree ... ok
Dec 06 16:20:35.129 INFO [stdout] 
Dec 06 16:20:35.129 INFO [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 16:20:35.129 INFO [stdout] 
Dec 06 16:20:35.131 INFO [stderr] su: No module specific data is present
Dec 06 16:20:35.824 INFO running `"docker" "inspect" "a4e754e22eedf04dc539f65ace837fa3441ff556e609cb3132455741012aa061"`
Dec 06 16:20:36.078 INFO running `"docker" "rm" "-f" "a4e754e22eedf04dc539f65ace837fa3441ff556e609cb3132455741012aa061"`
Dec 06 16:20:36.302 INFO [stdout] a4e754e22eedf04dc539f65ace837fa3441ff556e609cb3132455741012aa061