Oct 13 05:20:16.363 INFO checking Cackbone/2048.rs against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 05:20:16.364 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 13 05:20:16.564 INFO blam! 1d07e33e97d15f031191487507912d4c7ef8939ec60382df56da462daf8bb832
Oct 13 05:20:16.576 INFO running `"docker" "start" "-a" "1d07e33e97d15f031191487507912d4c7ef8939ec60382df56da462daf8bb832"`
Oct 13 05:20:18.076 INFO kablam! usermod: no changes
Oct 13 05:20:18.148 INFO kablam!     Checking rust_2048 v0.1.0 (/source)
Oct 13 05:20:19.128 INFO kablam! warning: value assigned to `grid_bis` is never read
Oct 13 05:20:19.128 INFO kablam!   --> src/main.rs:18:13
Oct 13 05:20:19.128 INFO kablam!    |
Oct 13 05:20:19.128 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Oct 13 05:20:19.128 INFO kablam!    |             ^^^^^^^^
Oct 13 05:20:19.128 INFO kablam!    |
Oct 13 05:20:19.128 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 13 05:20:19.128 INFO kablam! 
Oct 13 05:20:19.164 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:20:19.164 INFO kablam!   --> src/main.rs:97:28
Oct 13 05:20:19.164 INFO kablam!    |
Oct 13 05:20:19.164 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Oct 13 05:20:19.164 INFO kablam!    |                            ----^^^^
Oct 13 05:20:19.164 INFO kablam!    |                            |
Oct 13 05:20:19.164 INFO kablam!    |                            help: remove this `mut`
Oct 13 05:20:19.164 INFO kablam!    |
Oct 13 05:20:19.164 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:20:19.164 INFO kablam! 
Oct 13 05:20:19.164 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:20:19.164 INFO kablam!    --> src/main.rs:137:13
Oct 13 05:20:19.164 INFO kablam!     |
Oct 13 05:20:19.164 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Oct 13 05:20:19.164 INFO kablam!     |             ----^^^^
Oct 13 05:20:19.164 INFO kablam!     |             |
Oct 13 05:20:19.164 INFO kablam!     |             help: remove this `mut`
Oct 13 05:20:19.164 INFO kablam! 
Oct 13 05:20:19.176 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 05:20:19.176 INFO kablam!   --> src/main.rs:52:13
Oct 13 05:20:19.176 INFO kablam!    |
Oct 13 05:20:19.176 INFO kablam! 52 |             Command::new("clear").status();
Oct 13 05:20:19.176 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 05:20:19.176 INFO kablam!    |
Oct 13 05:20:19.176 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 05:20:19.176 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 05:20:19.176 INFO kablam! 
Oct 13 05:20:19.176 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 05:20:19.176 INFO kablam!   --> src/main.rs:75:5
Oct 13 05:20:19.176 INFO kablam!    |
Oct 13 05:20:19.176 INFO kablam! 75 |     Command::new("clear").status();
Oct 13 05:20:19.176 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 05:20:19.176 INFO kablam!    |
Oct 13 05:20:19.176 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 05:20:19.176 INFO kablam! 
Oct 13 05:20:19.232 INFO kablam! warning: value assigned to `grid_bis` is never read
Oct 13 05:20:19.232 INFO kablam!   --> src/main.rs:18:13
Oct 13 05:20:19.232 INFO kablam!    |
Oct 13 05:20:19.232 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Oct 13 05:20:19.232 INFO kablam!    |             ^^^^^^^^
Oct 13 05:20:19.232 INFO kablam!    |
Oct 13 05:20:19.232 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 13 05:20:19.232 INFO kablam! 
Oct 13 05:20:19.240 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:20:19.240 INFO kablam!   --> src/main.rs:97:28
Oct 13 05:20:19.240 INFO kablam!    |
Oct 13 05:20:19.240 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Oct 13 05:20:19.240 INFO kablam!    |                            ----^^^^
Oct 13 05:20:19.240 INFO kablam!    |                            |
Oct 13 05:20:19.240 INFO kablam!    |                            help: remove this `mut`
Oct 13 05:20:19.240 INFO kablam!    |
Oct 13 05:20:19.240 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:20:19.240 INFO kablam! 
Oct 13 05:20:19.240 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:20:19.240 INFO kablam!    --> src/main.rs:137:13
Oct 13 05:20:19.240 INFO kablam!     |
Oct 13 05:20:19.240 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Oct 13 05:20:19.240 INFO kablam!     |             ----^^^^
Oct 13 05:20:19.240 INFO kablam!     |             |
Oct 13 05:20:19.240 INFO kablam!     |             help: remove this `mut`
Oct 13 05:20:19.240 INFO kablam! 
Oct 13 05:20:19.260 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 05:20:19.260 INFO kablam!   --> src/main.rs:52:13
Oct 13 05:20:19.260 INFO kablam!    |
Oct 13 05:20:19.260 INFO kablam! 52 |             Command::new("clear").status();
Oct 13 05:20:19.260 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 05:20:19.260 INFO kablam!    |
Oct 13 05:20:19.260 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 05:20:19.260 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 05:20:19.260 INFO kablam! 
Oct 13 05:20:19.260 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 05:20:19.260 INFO kablam!   --> src/main.rs:75:5
Oct 13 05:20:19.260 INFO kablam!    |
Oct 13 05:20:19.260 INFO kablam! 75 |     Command::new("clear").status();
Oct 13 05:20:19.260 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 05:20:19.260 INFO kablam!    |
Oct 13 05:20:19.260 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 05:20:19.260 INFO kablam! 
Oct 13 05:20:19.284 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Oct 13 05:20:19.284 INFO kablam! su: No module specific data is present
Oct 13 05:20:20.240 INFO running `"docker" "rm" "-f" "1d07e33e97d15f031191487507912d4c7ef8939ec60382df56da462daf8bb832"`
Oct 13 05:20:20.505 INFO blam! 1d07e33e97d15f031191487507912d4c7ef8939ec60382df56da462daf8bb832