Oct 21 21:53:26.383 INFO checking Cackbone/2048.rs against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 21:53:26.383 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 21:53:26.796 INFO blam! c0fe566548051148ab94e59bb51acffc14b0a2a990abe643fb60c68d9e0ea6f8
Oct 21 21:53:26.812 INFO running `"docker" "start" "-a" "c0fe566548051148ab94e59bb51acffc14b0a2a990abe643fb60c68d9e0ea6f8"`
Oct 21 21:53:28.527 INFO kablam! usermod: no changes
Oct 21 21:53:28.596 INFO kablam!     Checking rust_2048 v0.1.0 (/source)
Oct 21 21:53:29.574 INFO kablam! warning: value assigned to `grid_bis` is never read
Oct 21 21:53:29.581 INFO kablam!   --> src/main.rs:18:13
Oct 21 21:53:29.581 INFO kablam!    |
Oct 21 21:53:29.582 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Oct 21 21:53:29.582 INFO kablam!    |             ^^^^^^^^
Oct 21 21:53:29.582 INFO kablam!    |
Oct 21 21:53:29.582 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 21 21:53:29.583 INFO kablam! 
Oct 21 21:53:29.583 INFO kablam! warning: variable does not need to be mutable
Oct 21 21:53:29.583 INFO kablam!   --> src/main.rs:97:28
Oct 21 21:53:29.584 INFO kablam!    |
Oct 21 21:53:29.584 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Oct 21 21:53:29.584 INFO kablam!    |                            ----^^^^
Oct 21 21:53:29.585 INFO kablam!    |                            |
Oct 21 21:53:29.585 INFO kablam!    |                            help: remove this `mut`
Oct 21 21:53:29.585 INFO kablam!    |
Oct 21 21:53:29.586 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 21 21:53:29.586 INFO kablam! 
Oct 21 21:53:29.586 INFO kablam! warning: variable does not need to be mutable
Oct 21 21:53:29.586 INFO kablam!    --> src/main.rs:137:13
Oct 21 21:53:29.587 INFO kablam!     |
Oct 21 21:53:29.587 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Oct 21 21:53:29.587 INFO kablam!     |             ----^^^^
Oct 21 21:53:29.587 INFO kablam!     |             |
Oct 21 21:53:29.587 INFO kablam!     |             help: remove this `mut`
Oct 21 21:53:29.588 INFO kablam! 
Oct 21 21:53:29.604 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 21 21:53:29.604 INFO kablam!   --> src/main.rs:52:13
Oct 21 21:53:29.604 INFO kablam!    |
Oct 21 21:53:29.604 INFO kablam! 52 |             Command::new("clear").status();
Oct 21 21:53:29.604 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 21:53:29.604 INFO kablam!    |
Oct 21 21:53:29.604 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 21 21:53:29.641 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 21 21:53:29.642 INFO kablam! 
Oct 21 21:53:29.642 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 21 21:53:29.642 INFO kablam!   --> src/main.rs:75:5
Oct 21 21:53:29.642 INFO kablam!    |
Oct 21 21:53:29.643 INFO kablam! 75 |     Command::new("clear").status();
Oct 21 21:53:29.643 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 21:53:29.643 INFO kablam!    |
Oct 21 21:53:29.644 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 21 21:53:29.644 INFO kablam! 
Oct 21 21:53:29.788 INFO kablam! warning: value assigned to `grid_bis` is never read
Oct 21 21:53:29.788 INFO kablam!   --> src/main.rs:18:13
Oct 21 21:53:29.788 INFO kablam!    |
Oct 21 21:53:29.788 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Oct 21 21:53:29.788 INFO kablam!    |             ^^^^^^^^
Oct 21 21:53:29.788 INFO kablam!    |
Oct 21 21:53:29.788 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 21 21:53:29.788 INFO kablam! 
Oct 21 21:53:29.796 INFO kablam! warning: variable does not need to be mutable
Oct 21 21:53:29.796 INFO kablam!   --> src/main.rs:97:28
Oct 21 21:53:29.796 INFO kablam!    |
Oct 21 21:53:29.796 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Oct 21 21:53:29.796 INFO kablam!    |                            ----^^^^
Oct 21 21:53:29.796 INFO kablam!    |                            |
Oct 21 21:53:29.796 INFO kablam!    |                            help: remove this `mut`
Oct 21 21:53:29.796 INFO kablam!    |
Oct 21 21:53:29.796 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 21 21:53:29.796 INFO kablam! 
Oct 21 21:53:29.798 INFO kablam! warning: variable does not need to be mutable
Oct 21 21:53:29.798 INFO kablam!    --> src/main.rs:137:13
Oct 21 21:53:29.798 INFO kablam!     |
Oct 21 21:53:29.798 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Oct 21 21:53:29.798 INFO kablam!     |             ----^^^^
Oct 21 21:53:29.798 INFO kablam!     |             |
Oct 21 21:53:29.798 INFO kablam!     |             help: remove this `mut`
Oct 21 21:53:29.798 INFO kablam! 
Oct 21 21:53:29.806 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 21 21:53:29.806 INFO kablam!   --> src/main.rs:52:13
Oct 21 21:53:29.806 INFO kablam!    |
Oct 21 21:53:29.806 INFO kablam! 52 |             Command::new("clear").status();
Oct 21 21:53:29.806 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 21:53:29.806 INFO kablam!    |
Oct 21 21:53:29.806 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 21 21:53:29.807 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 21 21:53:29.807 INFO kablam! 
Oct 21 21:53:29.807 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 21 21:53:29.807 INFO kablam!   --> src/main.rs:75:5
Oct 21 21:53:29.807 INFO kablam!    |
Oct 21 21:53:29.807 INFO kablam! 75 |     Command::new("clear").status();
Oct 21 21:53:29.807 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 21:53:29.807 INFO kablam!    |
Oct 21 21:53:29.807 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 21 21:53:29.807 INFO kablam! 
Oct 21 21:53:29.892 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Oct 21 21:53:29.893 INFO kablam! su: No module specific data is present
Oct 21 21:53:30.818 INFO running `"docker" "rm" "-f" "c0fe566548051148ab94e59bb51acffc14b0a2a990abe643fb60c68d9e0ea6f8"`
Oct 21 21:53:31.148 INFO blam! c0fe566548051148ab94e59bb51acffc14b0a2a990abe643fb60c68d9e0ea6f8