Dec 14 12:49:19.636 INFO testing 02alexander/maze-solver against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 12:49:19.636 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 12:49:20.119 INFO [stdout] 377c0a0db1c72a42eb2b527617fa429dcae39e54dcc3a9dd0192b52a0cca99eb
Dec 14 12:49:20.124 INFO running `"docker" "start" "-a" "377c0a0db1c72a42eb2b527617fa429dcae39e54dcc3a9dd0192b52a0cca99eb"`
Dec 14 12:49:21.839 INFO [stderr] usermod: no changes
Dec 14 12:49:21.923 INFO [stderr]    Compiling flate2 v0.2.20
Dec 14 12:49:23.818 INFO [stderr]    Compiling imagefmt v4.0.0
Dec 14 12:49:26.123 INFO [stderr]    Compiling maze-solver v0.1.0 (/source)
Dec 14 12:49:26.731 INFO [stderr] warning: unused imports: `read`, `write`
Dec 14 12:49:26.731 INFO [stderr]  --> src/main.rs:3:16
Dec 14 12:49:26.731 INFO [stderr]   |
Dec 14 12:49:26.731 INFO [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType};
Dec 14 12:49:26.731 INFO [stderr]   |                ^^^^  ^^^^^
Dec 14 12:49:26.731 INFO [stderr]   |
Dec 14 12:49:26.731 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 12:49:26.731 INFO [stderr] 
Dec 14 12:49:26.731 INFO [stderr] warning: unused import: `std::mem::drop`
Dec 14 12:49:26.731 INFO [stderr]  --> src/tree.rs:2:5
Dec 14 12:49:26.731 INFO [stderr]   |
Dec 14 12:49:26.731 INFO [stderr] 2 | use std::mem::drop;
Dec 14 12:49:26.731 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 14 12:49:26.731 INFO [stderr] 
Dec 14 12:49:26.731 INFO [stderr] warning: unused import: `Node`
Dec 14 12:49:26.731 INFO [stderr]  --> src/path_to_end.rs:3:35
Dec 14 12:49:26.731 INFO [stderr]   |
Dec 14 12:49:26.731 INFO [stderr] 3 | use super::tree::{QuaternaryTree, Node, Link};
Dec 14 12:49:26.731 INFO [stderr]   |                                   ^^^^
Dec 14 12:49:26.731 INFO [stderr] 
Dec 14 12:49:26.859 INFO [stderr] warning: variable does not need to be mutable
Dec 14 12:49:26.859 INFO [stderr]   --> src/tree.rs:41:8
Dec 14 12:49:26.859 INFO [stderr]    |
Dec 14 12:49:26.859 INFO [stderr] 41 |             let mut cur = &mut *next.take().unwrap();
Dec 14 12:49:26.859 INFO [stderr]    |                 ----^^^
Dec 14 12:49:26.859 INFO [stderr]    |                 |
Dec 14 12:49:26.859 INFO [stderr]    |                 help: remove this `mut`
Dec 14 12:49:26.859 INFO [stderr]    |
Dec 14 12:49:26.859 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 12:49:26.859 INFO [stderr] 
Dec 14 12:49:26.891 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:49:26.891 INFO [stderr]   --> src/main.rs:20:2
Dec 14 12:49:26.891 INFO [stderr]    |
Dec 14 12:49:26.891 INFO [stderr] 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Dec 14 12:49:26.891 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:49:26.891 INFO [stderr]    |
Dec 14 12:49:26.891 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 12:49:26.891 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:49:26.891 INFO [stderr] 
Dec 14 12:49:28.659 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.77s
Dec 14 12:49:28.673 INFO [stderr] su: No module specific data is present
Dec 14 12:49:29.664 INFO running `"docker" "inspect" "377c0a0db1c72a42eb2b527617fa429dcae39e54dcc3a9dd0192b52a0cca99eb"`
Dec 14 12:49:29.956 INFO running `"docker" "rm" "-f" "377c0a0db1c72a42eb2b527617fa429dcae39e54dcc3a9dd0192b52a0cca99eb"`
Dec 14 12:49:30.227 INFO [stdout] 377c0a0db1c72a42eb2b527617fa429dcae39e54dcc3a9dd0192b52a0cca99eb
Dec 14 12:49:30.235 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 12:49:30.733 INFO [stdout] aa78cff5ddf8e1aea9aa01ace24b1f3e7a23ee8f416ab7ff8dc1a07b0bb24898
Dec 14 12:49:30.735 INFO running `"docker" "start" "-a" "aa78cff5ddf8e1aea9aa01ace24b1f3e7a23ee8f416ab7ff8dc1a07b0bb24898"`
Dec 14 12:49:32.114 INFO [stderr] usermod: no changes
Dec 14 12:49:32.186 INFO [stderr]    Compiling maze-solver v0.1.0 (/source)
Dec 14 12:49:32.857 INFO [stderr] warning: unused imports: `read`, `write`
Dec 14 12:49:32.857 INFO [stderr]  --> src/main.rs:3:16
Dec 14 12:49:32.857 INFO [stderr]   |
Dec 14 12:49:32.857 INFO [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType};
Dec 14 12:49:32.857 INFO [stderr]   |                ^^^^  ^^^^^
Dec 14 12:49:32.857 INFO [stderr]   |
Dec 14 12:49:32.857 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 12:49:32.857 INFO [stderr] 
Dec 14 12:49:32.857 INFO [stderr] warning: unused import: `std::mem::drop`
Dec 14 12:49:32.857 INFO [stderr]  --> src/tree.rs:2:5
Dec 14 12:49:32.857 INFO [stderr]   |
Dec 14 12:49:32.857 INFO [stderr] 2 | use std::mem::drop;
Dec 14 12:49:32.857 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 14 12:49:32.857 INFO [stderr] 
Dec 14 12:49:33.079 INFO [stderr] warning: variable does not need to be mutable
Dec 14 12:49:33.079 INFO [stderr]   --> src/tree.rs:41:8
Dec 14 12:49:33.079 INFO [stderr]    |
Dec 14 12:49:33.079 INFO [stderr] 41 |             let mut cur = &mut *next.take().unwrap();
Dec 14 12:49:33.079 INFO [stderr]    |                 ----^^^
Dec 14 12:49:33.079 INFO [stderr]    |                 |
Dec 14 12:49:33.079 INFO [stderr]    |                 help: remove this `mut`
Dec 14 12:49:33.079 INFO [stderr]    |
Dec 14 12:49:33.079 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 12:49:33.079 INFO [stderr] 
Dec 14 12:49:33.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:49:33.143 INFO [stderr]   --> src/main.rs:20:2
Dec 14 12:49:33.143 INFO [stderr]    |
Dec 14 12:49:33.143 INFO [stderr] 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Dec 14 12:49:33.143 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:49:33.143 INFO [stderr]    |
Dec 14 12:49:33.143 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 12:49:33.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:49:33.143 INFO [stderr] 
Dec 14 12:49:34.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
Dec 14 12:49:34.387 INFO [stderr] su: No module specific data is present
Dec 14 12:49:35.607 INFO running `"docker" "inspect" "aa78cff5ddf8e1aea9aa01ace24b1f3e7a23ee8f416ab7ff8dc1a07b0bb24898"`
Dec 14 12:49:35.868 INFO running `"docker" "rm" "-f" "aa78cff5ddf8e1aea9aa01ace24b1f3e7a23ee8f416ab7ff8dc1a07b0bb24898"`
Dec 14 12:49:36.139 INFO [stdout] aa78cff5ddf8e1aea9aa01ace24b1f3e7a23ee8f416ab7ff8dc1a07b0bb24898
Dec 14 12:49:36.143 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 12:49:36.604 INFO [stdout] 9d955d4521dc1bb0b1ae1612d51c6cf1fa6b579c80816def15559a1b4392b533
Dec 14 12:49:36.606 INFO running `"docker" "start" "-a" "9d955d4521dc1bb0b1ae1612d51c6cf1fa6b579c80816def15559a1b4392b533"`
Dec 14 12:49:37.983 INFO [stderr] usermod: no changes
Dec 14 12:49:38.091 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 14 12:49:38.104 INFO [stderr]      Running /target/debug/deps/maze_solver-7e8d61ade571fd8e
Dec 14 12:49:38.115 INFO [stdout] 
Dec 14 12:49:38.115 INFO [stdout] running 6 tests
Dec 14 12:49:38.115 INFO [stdout] test maze_to_tree::test::t_get_tile ... ok
Dec 14 12:49:38.115 INFO [stdout] test maze::test::test_find_start ... ok
Dec 14 12:49:38.115 INFO [stdout] test maze::test::test_find_end ... ok
Dec 14 12:49:38.115 INFO [stdout] test path_to_end::test::t_path_to_end ... ok
Dec 14 12:49:38.115 INFO [stdout] test maze_to_tree::test::t_maze_to_tree ... ok
Dec 14 12:49:38.122 INFO [stdout] test maze::test::from ... ok
Dec 14 12:49:38.123 INFO [stdout] 
Dec 14 12:49:38.123 INFO [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 12:49:38.123 INFO [stdout] 
Dec 14 12:49:38.126 INFO [stderr] su: No module specific data is present
Dec 14 12:49:38.958 INFO running `"docker" "inspect" "9d955d4521dc1bb0b1ae1612d51c6cf1fa6b579c80816def15559a1b4392b533"`
Dec 14 12:49:39.208 INFO running `"docker" "rm" "-f" "9d955d4521dc1bb0b1ae1612d51c6cf1fa6b579c80816def15559a1b4392b533"`
Dec 14 12:49:39.507 INFO [stdout] 9d955d4521dc1bb0b1ae1612d51c6cf1fa6b579c80816def15559a1b4392b533