Nov 09 21:12:20.237 INFO checking 02alexander/maze-solver against try#dc13be39fae8d4c607889b27de374b52586485a3 for pr-55632
Nov 09 21:12:20.237 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-2/try#dc13be39fae8d4c607889b27de374b52586485a3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55632/try#dc13be39fae8d4c607889b27de374b52586485a3:/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 +dc13be39fae8d4c607889b27de374b52586485a3-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 21:12:20.727 INFO blam! eb84be3e31aff26cdf15a08fc88f36cdfef6e292c6c2171753f666f05da229fc
Nov 09 21:12:20.729 INFO running `"docker" "start" "-a" "eb84be3e31aff26cdf15a08fc88f36cdfef6e292c6c2171753f666f05da229fc"`
Nov 09 21:12:21.299 INFO kablam! usermod: no changes
Nov 09 21:12:21.355 INFO kablam!     Checking imagefmt v4.0.0
Nov 09 21:12:22.955 INFO kablam!     Checking maze-solver v0.1.0 (/source)
Nov 09 21:12:23.599 INFO kablam! warning: unused imports: `read`, `write`
Nov 09 21:12:23.600 INFO kablam!  --> src/main.rs:3:16
Nov 09 21:12:23.600 INFO kablam!   |
Nov 09 21:12:23.600 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Nov 09 21:12:23.600 INFO kablam!   |                ^^^^  ^^^^^
Nov 09 21:12:23.600 INFO kablam!   |
Nov 09 21:12:23.600 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 09 21:12:23.601 INFO kablam! 
Nov 09 21:12:23.601 INFO kablam! warning: unused import: `std::mem::drop`
Nov 09 21:12:23.601 INFO kablam!  --> src/tree.rs:2:5
Nov 09 21:12:23.601 INFO kablam!   |
Nov 09 21:12:23.601 INFO kablam! 2 | use std::mem::drop;
Nov 09 21:12:23.601 INFO kablam!   |     ^^^^^^^^^^^^^^
Nov 09 21:12:23.602 INFO kablam! 
Nov 09 21:12:23.602 INFO kablam! warning: unused import: `Node`
Nov 09 21:12:23.602 INFO kablam!  --> src/path_to_end.rs:3:35
Nov 09 21:12:23.602 INFO kablam!   |
Nov 09 21:12:23.602 INFO kablam! 3 | use super::tree::{QuaternaryTree, Node, Link};
Nov 09 21:12:23.603 INFO kablam!   |                                   ^^^^
Nov 09 21:12:23.603 INFO kablam! 
Nov 09 21:12:23.687 INFO kablam! warning: unused imports: `read`, `write`
Nov 09 21:12:23.687 INFO kablam!  --> src/main.rs:3:16
Nov 09 21:12:23.687 INFO kablam!   |
Nov 09 21:12:23.687 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Nov 09 21:12:23.687 INFO kablam!   |                ^^^^  ^^^^^
Nov 09 21:12:23.687 INFO kablam!   |
Nov 09 21:12:23.687 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 09 21:12:23.687 INFO kablam! 
Nov 09 21:12:23.687 INFO kablam! warning: unused import: `std::mem::drop`
Nov 09 21:12:23.687 INFO kablam!  --> src/tree.rs:2:5
Nov 09 21:12:23.687 INFO kablam!   |
Nov 09 21:12:23.687 INFO kablam! 2 | use std::mem::drop;
Nov 09 21:12:23.687 INFO kablam!   |     ^^^^^^^^^^^^^^
Nov 09 21:12:23.687 INFO kablam! 
Nov 09 21:12:23.755 INFO kablam! warning: variable does not need to be mutable
Nov 09 21:12:23.755 INFO kablam!   --> src/tree.rs:41:8
Nov 09 21:12:23.755 INFO kablam!    |
Nov 09 21:12:23.755 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Nov 09 21:12:23.755 INFO kablam!    |                 ----^^^
Nov 09 21:12:23.755 INFO kablam!    |                 |
Nov 09 21:12:23.755 INFO kablam!    |                 help: remove this `mut`
Nov 09 21:12:23.755 INFO kablam!    |
Nov 09 21:12:23.755 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 21:12:23.755 INFO kablam! 
Nov 09 21:12:23.785 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 21:12:23.785 INFO kablam!   --> src/main.rs:20:2
Nov 09 21:12:23.785 INFO kablam!    |
Nov 09 21:12:23.785 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Nov 09 21:12:23.786 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 21:12:23.786 INFO kablam!    |
Nov 09 21:12:23.786 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 09 21:12:23.786 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 21:12:23.786 INFO kablam! 
Nov 09 21:12:23.955 INFO kablam! warning: variable does not need to be mutable
Nov 09 21:12:23.955 INFO kablam!   --> src/tree.rs:41:8
Nov 09 21:12:23.955 INFO kablam!    |
Nov 09 21:12:23.955 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Nov 09 21:12:23.955 INFO kablam!    |                 ----^^^
Nov 09 21:12:23.955 INFO kablam!    |                 |
Nov 09 21:12:23.955 INFO kablam!    |                 help: remove this `mut`
Nov 09 21:12:23.955 INFO kablam!    |
Nov 09 21:12:23.955 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 21:12:23.955 INFO kablam! 
Nov 09 21:12:24.024 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 21:12:24.024 INFO kablam!   --> src/main.rs:20:2
Nov 09 21:12:24.024 INFO kablam!    |
Nov 09 21:12:24.024 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Nov 09 21:12:24.024 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 21:12:24.024 INFO kablam!    |
Nov 09 21:12:24.024 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 09 21:12:24.024 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 21:12:24.024 INFO kablam! 
Nov 09 21:12:24.041 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.71s
Nov 09 21:12:24.045 INFO kablam! su: No module specific data is present
Nov 09 21:12:24.469 INFO running `"docker" "rm" "-f" "eb84be3e31aff26cdf15a08fc88f36cdfef6e292c6c2171753f666f05da229fc"`
Nov 09 21:12:24.594 INFO blam! eb84be3e31aff26cdf15a08fc88f36cdfef6e292c6c2171753f666f05da229fc