Oct 27 12:29:00.220 INFO checking Cackbone/2048.rs against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 27 12:29:00.222 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192-2/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 27 12:29:00.709 INFO blam! fbcde1af7c615808a94606000005780570468cc48699531acd3491df91240f94
Oct 27 12:29:00.710 INFO running `"docker" "start" "-a" "fbcde1af7c615808a94606000005780570468cc48699531acd3491df91240f94"`
Oct 27 12:29:02.482 INFO kablam! usermod: no changes
Oct 27 12:29:02.536 INFO kablam!     Checking rust_2048 v0.1.0 (/source)
Oct 27 12:29:03.415 INFO kablam! warning: value assigned to `grid_bis` is never read
Oct 27 12:29:03.415 INFO kablam!   --> src/main.rs:18:13
Oct 27 12:29:03.415 INFO kablam!    |
Oct 27 12:29:03.415 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Oct 27 12:29:03.415 INFO kablam!    |             ^^^^^^^^
Oct 27 12:29:03.416 INFO kablam!    |
Oct 27 12:29:03.416 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 27 12:29:03.416 INFO kablam! 
Oct 27 12:29:03.431 INFO kablam! warning: variable does not need to be mutable
Oct 27 12:29:03.431 INFO kablam!   --> src/main.rs:97:28
Oct 27 12:29:03.432 INFO kablam!    |
Oct 27 12:29:03.432 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Oct 27 12:29:03.432 INFO kablam!    |                            ----^^^^
Oct 27 12:29:03.432 INFO kablam!    |                            |
Oct 27 12:29:03.432 INFO kablam!    |                            help: remove this `mut`
Oct 27 12:29:03.433 INFO kablam!    |
Oct 27 12:29:03.433 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 12:29:03.433 INFO kablam! 
Oct 27 12:29:03.439 INFO kablam! warning: variable does not need to be mutable
Oct 27 12:29:03.440 INFO kablam!    --> src/main.rs:137:13
Oct 27 12:29:03.440 INFO kablam!     |
Oct 27 12:29:03.441 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Oct 27 12:29:03.441 INFO kablam!     |             ----^^^^
Oct 27 12:29:03.442 INFO kablam!     |             |
Oct 27 12:29:03.442 INFO kablam!     |             help: remove this `mut`
Oct 27 12:29:03.443 INFO kablam! 
Oct 27 12:29:03.463 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 12:29:03.464 INFO kablam!   --> src/main.rs:52:13
Oct 27 12:29:03.464 INFO kablam!    |
Oct 27 12:29:03.464 INFO kablam! 52 |             Command::new("clear").status();
Oct 27 12:29:03.465 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 12:29:03.471 INFO kablam!    |
Oct 27 12:29:03.471 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 12:29:03.472 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 12:29:03.472 INFO kablam! 
Oct 27 12:29:03.472 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 12:29:03.473 INFO kablam!   --> src/main.rs:75:5
Oct 27 12:29:03.473 INFO kablam!    |
Oct 27 12:29:03.473 INFO kablam! 75 |     Command::new("clear").status();
Oct 27 12:29:03.473 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 12:29:03.474 INFO kablam!    |
Oct 27 12:29:03.474 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 12:29:03.474 INFO kablam! 
Oct 27 12:29:03.739 INFO kablam! warning: value assigned to `grid_bis` is never read
Oct 27 12:29:03.739 INFO kablam!   --> src/main.rs:18:13
Oct 27 12:29:03.740 INFO kablam!    |
Oct 27 12:29:03.740 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Oct 27 12:29:03.740 INFO kablam!    |             ^^^^^^^^
Oct 27 12:29:03.741 INFO kablam!    |
Oct 27 12:29:03.741 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 27 12:29:03.741 INFO kablam! 
Oct 27 12:29:03.747 INFO kablam! warning: variable does not need to be mutable
Oct 27 12:29:03.747 INFO kablam!   --> src/main.rs:97:28
Oct 27 12:29:03.747 INFO kablam!    |
Oct 27 12:29:03.748 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Oct 27 12:29:03.748 INFO kablam!    |                            ----^^^^
Oct 27 12:29:03.748 INFO kablam!    |                            |
Oct 27 12:29:03.749 INFO kablam!    |                            help: remove this `mut`
Oct 27 12:29:03.749 INFO kablam!    |
Oct 27 12:29:03.749 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 12:29:03.749 INFO kablam! 
Oct 27 12:29:03.750 INFO kablam! warning: variable does not need to be mutable
Oct 27 12:29:03.750 INFO kablam!    --> src/main.rs:137:13
Oct 27 12:29:03.750 INFO kablam!     |
Oct 27 12:29:03.751 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Oct 27 12:29:03.751 INFO kablam!     |             ----^^^^
Oct 27 12:29:03.751 INFO kablam!     |             |
Oct 27 12:29:03.751 INFO kablam!     |             help: remove this `mut`
Oct 27 12:29:03.752 INFO kablam! 
Oct 27 12:29:03.757 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 12:29:03.758 INFO kablam!   --> src/main.rs:52:13
Oct 27 12:29:03.759 INFO kablam!    |
Oct 27 12:29:03.759 INFO kablam! 52 |             Command::new("clear").status();
Oct 27 12:29:03.760 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 12:29:03.760 INFO kablam!    |
Oct 27 12:29:03.760 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 12:29:03.761 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 12:29:03.761 INFO kablam! 
Oct 27 12:29:03.761 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 12:29:03.762 INFO kablam!   --> src/main.rs:75:5
Oct 27 12:29:03.762 INFO kablam!    |
Oct 27 12:29:03.762 INFO kablam! 75 |     Command::new("clear").status();
Oct 27 12:29:03.762 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 12:29:03.763 INFO kablam!    |
Oct 27 12:29:03.763 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 12:29:03.763 INFO kablam! 
Oct 27 12:29:03.823 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Oct 27 12:29:03.823 INFO kablam! su: No module specific data is present
Oct 27 12:29:05.143 INFO running `"docker" "rm" "-f" "fbcde1af7c615808a94606000005780570468cc48699531acd3491df91240f94"`
Oct 27 12:29:05.447 INFO blam! fbcde1af7c615808a94606000005780570468cc48699531acd3491df91240f94