Nov 04 14:24:36.235 INFO checking Cackbone/2048.rs against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 14:24:36.237 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-2/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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 04 14:24:36.759 INFO blam! fddcc19c53cf601556022bd07a7344c36ee000a68663f1ace3f7a9c42d7ff595
Nov 04 14:24:36.761 INFO running `"docker" "start" "-a" "fddcc19c53cf601556022bd07a7344c36ee000a68663f1ace3f7a9c42d7ff595"`
Nov 04 14:24:38.199 INFO kablam! usermod: no changes
Nov 04 14:24:38.264 INFO kablam!     Checking rust_2048 v0.1.0 (/source)
Nov 04 14:24:39.203 INFO kablam! warning: value assigned to `grid_bis` is never read
Nov 04 14:24:39.203 INFO kablam!   --> src/main.rs:18:13
Nov 04 14:24:39.203 INFO kablam!    |
Nov 04 14:24:39.203 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 04 14:24:39.203 INFO kablam!    |             ^^^^^^^^
Nov 04 14:24:39.203 INFO kablam!    |
Nov 04 14:24:39.203 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Nov 04 14:24:39.203 INFO kablam! 
Nov 04 14:24:39.231 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:24:39.231 INFO kablam!   --> src/main.rs:97:28
Nov 04 14:24:39.231 INFO kablam!    |
Nov 04 14:24:39.231 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 04 14:24:39.231 INFO kablam!    |                            ----^^^^
Nov 04 14:24:39.231 INFO kablam!    |                            |
Nov 04 14:24:39.231 INFO kablam!    |                            help: remove this `mut`
Nov 04 14:24:39.231 INFO kablam!    |
Nov 04 14:24:39.231 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 04 14:24:39.231 INFO kablam! 
Nov 04 14:24:39.243 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:24:39.243 INFO kablam!    --> src/main.rs:137:13
Nov 04 14:24:39.243 INFO kablam!     |
Nov 04 14:24:39.243 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 04 14:24:39.243 INFO kablam!     |             ----^^^^
Nov 04 14:24:39.243 INFO kablam!     |             |
Nov 04 14:24:39.243 INFO kablam!     |             help: remove this `mut`
Nov 04 14:24:39.243 INFO kablam! 
Nov 04 14:24:39.259 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 04 14:24:39.259 INFO kablam!   --> src/main.rs:52:13
Nov 04 14:24:39.259 INFO kablam!    |
Nov 04 14:24:39.259 INFO kablam! 52 |             Command::new("clear").status();
Nov 04 14:24:39.259 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 14:24:39.259 INFO kablam!    |
Nov 04 14:24:39.259 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 04 14:24:39.259 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 04 14:24:39.259 INFO kablam! 
Nov 04 14:24:39.259 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 04 14:24:39.259 INFO kablam!   --> src/main.rs:75:5
Nov 04 14:24:39.259 INFO kablam!    |
Nov 04 14:24:39.259 INFO kablam! 75 |     Command::new("clear").status();
Nov 04 14:24:39.259 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 14:24:39.259 INFO kablam!    |
Nov 04 14:24:39.259 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 04 14:24:39.259 INFO kablam! 
Nov 04 14:24:39.295 INFO kablam! warning: value assigned to `grid_bis` is never read
Nov 04 14:24:39.295 INFO kablam!   --> src/main.rs:18:13
Nov 04 14:24:39.295 INFO kablam!    |
Nov 04 14:24:39.295 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 04 14:24:39.295 INFO kablam!    |             ^^^^^^^^
Nov 04 14:24:39.295 INFO kablam!    |
Nov 04 14:24:39.295 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Nov 04 14:24:39.295 INFO kablam! 
Nov 04 14:24:39.313 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:24:39.313 INFO kablam!   --> src/main.rs:97:28
Nov 04 14:24:39.313 INFO kablam!    |
Nov 04 14:24:39.313 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 04 14:24:39.313 INFO kablam!    |                            ----^^^^
Nov 04 14:24:39.313 INFO kablam!    |                            |
Nov 04 14:24:39.313 INFO kablam!    |                            help: remove this `mut`
Nov 04 14:24:39.313 INFO kablam!    |
Nov 04 14:24:39.314 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 04 14:24:39.314 INFO kablam! 
Nov 04 14:24:39.323 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:24:39.323 INFO kablam!    --> src/main.rs:137:13
Nov 04 14:24:39.323 INFO kablam!     |
Nov 04 14:24:39.323 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 04 14:24:39.323 INFO kablam!     |             ----^^^^
Nov 04 14:24:39.323 INFO kablam!     |             |
Nov 04 14:24:39.323 INFO kablam!     |             help: remove this `mut`
Nov 04 14:24:39.323 INFO kablam! 
Nov 04 14:24:39.331 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 04 14:24:39.331 INFO kablam!   --> src/main.rs:52:13
Nov 04 14:24:39.331 INFO kablam!    |
Nov 04 14:24:39.331 INFO kablam! 52 |             Command::new("clear").status();
Nov 04 14:24:39.331 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 14:24:39.331 INFO kablam!    |
Nov 04 14:24:39.331 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 04 14:24:39.331 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 04 14:24:39.331 INFO kablam! 
Nov 04 14:24:39.331 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 04 14:24:39.331 INFO kablam!   --> src/main.rs:75:5
Nov 04 14:24:39.331 INFO kablam!    |
Nov 04 14:24:39.331 INFO kablam! 75 |     Command::new("clear").status();
Nov 04 14:24:39.331 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 14:24:39.331 INFO kablam!    |
Nov 04 14:24:39.331 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 04 14:24:39.331 INFO kablam! 
Nov 04 14:24:39.371 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Nov 04 14:24:39.371 INFO kablam! su: No module specific data is present
Nov 04 14:24:40.243 INFO running `"docker" "rm" "-f" "fddcc19c53cf601556022bd07a7344c36ee000a68663f1ace3f7a9c42d7ff595"`
Nov 04 14:24:40.595 INFO blam! fddcc19c53cf601556022bd07a7344c36ee000a68663f1ace3f7a9c42d7ff595