Nov 09 21:12:20.237 INFO checking 02alexander/maze-solver against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 21:12:20.238 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-4/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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"`
Nov 09 21:12:20.679 INFO blam! 4aa9c647d472990851f26347d5512de9e77f6477214c6b2b02a6b53cb1a47480
Nov 09 21:12:20.685 INFO running `"docker" "start" "-a" "4aa9c647d472990851f26347d5512de9e77f6477214c6b2b02a6b53cb1a47480"`
Nov 09 21:12:21.230 INFO kablam! usermod: no changes
Nov 09 21:12:21.271 INFO kablam!     Checking imagefmt v4.0.0
Nov 09 21:12:22.765 INFO kablam!     Checking maze-solver v0.1.0 (/source)
Nov 09 21:12:23.347 INFO kablam! warning: unused imports: `read`, `write`
Nov 09 21:12:23.347 INFO kablam!  --> src/main.rs:3:16
Nov 09 21:12:23.347 INFO kablam!   |
Nov 09 21:12:23.347 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Nov 09 21:12:23.347 INFO kablam!   |                ^^^^  ^^^^^
Nov 09 21:12:23.347 INFO kablam!   |
Nov 09 21:12:23.347 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 09 21:12:23.347 INFO kablam! 
Nov 09 21:12:23.347 INFO kablam! warning: unused import: `std::mem::drop`
Nov 09 21:12:23.347 INFO kablam!  --> src/tree.rs:2:5
Nov 09 21:12:23.347 INFO kablam!   |
Nov 09 21:12:23.347 INFO kablam! 2 | use std::mem::drop;
Nov 09 21:12:23.347 INFO kablam!   |     ^^^^^^^^^^^^^^
Nov 09 21:12:23.347 INFO kablam! 
Nov 09 21:12:23.347 INFO kablam! warning: unused import: `Node`
Nov 09 21:12:23.347 INFO kablam!  --> src/path_to_end.rs:3:35
Nov 09 21:12:23.347 INFO kablam!   |
Nov 09 21:12:23.347 INFO kablam! 3 | use super::tree::{QuaternaryTree, Node, Link};
Nov 09 21:12:23.347 INFO kablam!   |                                   ^^^^
Nov 09 21:12:23.347 INFO kablam! 
Nov 09 21:12:23.429 INFO kablam! warning: unused imports: `read`, `write`
Nov 09 21:12:23.429 INFO kablam!  --> src/main.rs:3:16
Nov 09 21:12:23.429 INFO kablam!   |
Nov 09 21:12:23.429 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Nov 09 21:12:23.429 INFO kablam!   |                ^^^^  ^^^^^
Nov 09 21:12:23.429 INFO kablam!   |
Nov 09 21:12:23.430 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 09 21:12:23.430 INFO kablam! 
Nov 09 21:12:23.430 INFO kablam! warning: unused import: `std::mem::drop`
Nov 09 21:12:23.430 INFO kablam!  --> src/tree.rs:2:5
Nov 09 21:12:23.430 INFO kablam!   |
Nov 09 21:12:23.430 INFO kablam! 2 | use std::mem::drop;
Nov 09 21:12:23.430 INFO kablam!   |     ^^^^^^^^^^^^^^
Nov 09 21:12:23.430 INFO kablam! 
Nov 09 21:12:23.485 INFO kablam! warning: variable does not need to be mutable
Nov 09 21:12:23.485 INFO kablam!   --> src/tree.rs:41:8
Nov 09 21:12:23.485 INFO kablam!    |
Nov 09 21:12:23.485 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Nov 09 21:12:23.485 INFO kablam!    |                 ----^^^
Nov 09 21:12:23.485 INFO kablam!    |                 |
Nov 09 21:12:23.485 INFO kablam!    |                 help: remove this `mut`
Nov 09 21:12:23.485 INFO kablam!    |
Nov 09 21:12:23.485 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 21:12:23.485 INFO kablam! 
Nov 09 21:12:23.524 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 21:12:23.524 INFO kablam!   --> src/main.rs:20:2
Nov 09 21:12:23.524 INFO kablam!    |
Nov 09 21:12:23.524 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Nov 09 21:12:23.524 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 21:12:23.524 INFO kablam!    |
Nov 09 21:12:23.525 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 09 21:12:23.525 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 21:12:23.525 INFO kablam! 
Nov 09 21:12:23.674 INFO kablam! warning: variable does not need to be mutable
Nov 09 21:12:23.674 INFO kablam!   --> src/tree.rs:41:8
Nov 09 21:12:23.674 INFO kablam!    |
Nov 09 21:12:23.674 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Nov 09 21:12:23.674 INFO kablam!    |                 ----^^^
Nov 09 21:12:23.675 INFO kablam!    |                 |
Nov 09 21:12:23.675 INFO kablam!    |                 help: remove this `mut`
Nov 09 21:12:23.675 INFO kablam!    |
Nov 09 21:12:23.675 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 21:12:23.675 INFO kablam! 
Nov 09 21:12:23.748 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 21:12:23.748 INFO kablam!   --> src/main.rs:20:2
Nov 09 21:12:23.748 INFO kablam!    |
Nov 09 21:12:23.748 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Nov 09 21:12:23.748 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 21:12:23.748 INFO kablam!    |
Nov 09 21:12:23.748 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 09 21:12:23.748 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 21:12:23.748 INFO kablam! 
Nov 09 21:12:23.794 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
Nov 09 21:12:23.797 INFO kablam! su: No module specific data is present
Nov 09 21:12:24.238 INFO running `"docker" "rm" "-f" "4aa9c647d472990851f26347d5512de9e77f6477214c6b2b02a6b53cb1a47480"`
Nov 09 21:12:24.351 INFO blam! 4aa9c647d472990851f26347d5512de9e77f6477214c6b2b02a6b53cb1a47480