Oct 13 05:50:54.327 INFO checking 02alexander/maze-solver against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 05:50:54.327 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-alt check --frozen --all --all-targets" "-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"`
Oct 13 05:50:54.508 INFO blam! 931980ac5336f751301496f2586e47027d6cd09fccebfdeff2fb003d738344ce
Oct 13 05:50:54.513 INFO running `"docker" "start" "-a" "931980ac5336f751301496f2586e47027d6cd09fccebfdeff2fb003d738344ce"`
Oct 13 05:50:54.862 INFO kablam! usermod: no changes
Oct 13 05:50:54.892 INFO kablam!     Checking flate2 v0.2.20
Oct 13 05:50:56.042 INFO kablam!     Checking imagefmt v4.0.0
Oct 13 05:50:57.800 INFO kablam!     Checking maze-solver v0.1.0 (/source)
Oct 13 05:50:58.642 INFO kablam! warning: unused imports: `read`, `write`
Oct 13 05:50:58.643 INFO kablam!  --> src/main.rs:3:16
Oct 13 05:50:58.643 INFO kablam!   |
Oct 13 05:50:58.643 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Oct 13 05:50:58.643 INFO kablam!   |                ^^^^  ^^^^^
Oct 13 05:50:58.643 INFO kablam!   |
Oct 13 05:50:58.644 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 05:50:58.644 INFO kablam! 
Oct 13 05:50:58.644 INFO kablam! warning: unused import: `std::mem::drop`
Oct 13 05:50:58.644 INFO kablam!  --> src/tree.rs:2:5
Oct 13 05:50:58.644 INFO kablam!   |
Oct 13 05:50:58.644 INFO kablam! 2 | use std::mem::drop;
Oct 13 05:50:58.644 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 13 05:50:58.644 INFO kablam! 
Oct 13 05:50:58.646 INFO kablam! warning: unused import: `Node`
Oct 13 05:50:58.646 INFO kablam!  --> src/path_to_end.rs:3:35
Oct 13 05:50:58.646 INFO kablam!   |
Oct 13 05:50:58.646 INFO kablam! 3 | use super::tree::{QuaternaryTree, Node, Link};
Oct 13 05:50:58.646 INFO kablam!   |                                   ^^^^
Oct 13 05:50:58.647 INFO kablam! 
Oct 13 05:50:58.728 INFO kablam! warning: unused imports: `read`, `write`
Oct 13 05:50:58.728 INFO kablam!  --> src/main.rs:3:16
Oct 13 05:50:58.728 INFO kablam!   |
Oct 13 05:50:58.728 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Oct 13 05:50:58.728 INFO kablam!   |                ^^^^  ^^^^^
Oct 13 05:50:58.728 INFO kablam!   |
Oct 13 05:50:58.728 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 05:50:58.728 INFO kablam! 
Oct 13 05:50:58.728 INFO kablam! warning: unused import: `std::mem::drop`
Oct 13 05:50:58.728 INFO kablam!  --> src/tree.rs:2:5
Oct 13 05:50:58.728 INFO kablam!   |
Oct 13 05:50:58.728 INFO kablam! 2 | use std::mem::drop;
Oct 13 05:50:58.728 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 13 05:50:58.728 INFO kablam! 
Oct 13 05:50:58.824 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:50:58.824 INFO kablam!   --> src/tree.rs:41:8
Oct 13 05:50:58.825 INFO kablam!    |
Oct 13 05:50:58.825 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Oct 13 05:50:58.830 INFO kablam!    |                 ----^^^
Oct 13 05:50:58.830 INFO kablam!    |                 |
Oct 13 05:50:58.830 INFO kablam!    |                 help: remove this `mut`
Oct 13 05:50:58.830 INFO kablam!    |
Oct 13 05:50:58.830 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:50:58.830 INFO kablam! 
Oct 13 05:50:58.859 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 05:50:58.860 INFO kablam!   --> src/main.rs:20:2
Oct 13 05:50:58.860 INFO kablam!    |
Oct 13 05:50:58.860 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Oct 13 05:50:58.860 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 05:50:58.860 INFO kablam!    |
Oct 13 05:50:58.860 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 05:50:58.860 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 05:50:58.861 INFO kablam! 
Oct 13 05:50:58.956 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:50:58.956 INFO kablam!   --> src/tree.rs:41:8
Oct 13 05:50:58.956 INFO kablam!    |
Oct 13 05:50:58.956 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Oct 13 05:50:58.956 INFO kablam!    |                 ----^^^
Oct 13 05:50:58.956 INFO kablam!    |                 |
Oct 13 05:50:58.956 INFO kablam!    |                 help: remove this `mut`
Oct 13 05:50:58.956 INFO kablam!    |
Oct 13 05:50:58.956 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:50:58.956 INFO kablam! 
Oct 13 05:50:59.028 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 05:50:59.029 INFO kablam!   --> src/main.rs:20:2
Oct 13 05:50:59.029 INFO kablam!    |
Oct 13 05:50:59.029 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Oct 13 05:50:59.029 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 05:50:59.030 INFO kablam!    |
Oct 13 05:50:59.030 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 05:50:59.030 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 05:50:59.030 INFO kablam! 
Oct 13 05:50:59.058 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
Oct 13 05:50:59.062 INFO kablam! su: No module specific data is present
Oct 13 05:50:59.472 INFO running `"docker" "rm" "-f" "931980ac5336f751301496f2586e47027d6cd09fccebfdeff2fb003d738344ce"`
Oct 13 05:50:59.622 INFO blam! 931980ac5336f751301496f2586e47027d6cd09fccebfdeff2fb003d738344ce