Nov 02 22:23:09.838 INFO checking Cackbone/2048.rs against master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862 for pr-55517
Nov 02 22:23:09.844 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-5/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55517/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/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 +f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862-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 02 22:23:10.197 INFO blam! 9ffbbc5b51fe9b310c2b2dd5a57e9641eaa8a92544f95274542a3fe1cbcdf542
Nov 02 22:23:10.208 INFO running `"docker" "start" "-a" "9ffbbc5b51fe9b310c2b2dd5a57e9641eaa8a92544f95274542a3fe1cbcdf542"`
Nov 02 22:23:11.756 INFO kablam! usermod: no changes
Nov 02 22:23:11.848 INFO kablam!     Checking rust_2048 v0.1.0 (/source)
Nov 02 22:23:13.149 INFO kablam! warning: value assigned to `grid_bis` is never read
Nov 02 22:23:13.149 INFO kablam!   --> src/main.rs:18:13
Nov 02 22:23:13.149 INFO kablam!    |
Nov 02 22:23:13.149 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 02 22:23:13.149 INFO kablam!    |             ^^^^^^^^
Nov 02 22:23:13.149 INFO kablam!    |
Nov 02 22:23:13.149 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Nov 02 22:23:13.149 INFO kablam! 
Nov 02 22:23:13.175 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.175 INFO kablam!   --> src/main.rs:97:28
Nov 02 22:23:13.175 INFO kablam!    |
Nov 02 22:23:13.175 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.175 INFO kablam!    |                            ----^^^^
Nov 02 22:23:13.175 INFO kablam!    |                            |
Nov 02 22:23:13.175 INFO kablam!    |                            help: remove this `mut`
Nov 02 22:23:13.175 INFO kablam!    |
Nov 02 22:23:13.180 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 22:23:13.180 INFO kablam! 
Nov 02 22:23:13.184 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.184 INFO kablam!    --> src/main.rs:137:13
Nov 02 22:23:13.184 INFO kablam!     |
Nov 02 22:23:13.184 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.184 INFO kablam!     |             ----^^^^
Nov 02 22:23:13.184 INFO kablam!     |             |
Nov 02 22:23:13.184 INFO kablam!     |             help: remove this `mut`
Nov 02 22:23:13.184 INFO kablam! 
Nov 02 22:23:13.191 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.191 INFO kablam!   --> src/main.rs:52:13
Nov 02 22:23:13.191 INFO kablam!    |
Nov 02 22:23:13.191 INFO kablam! 52 |             Command::new("clear").status();
Nov 02 22:23:13.191 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.191 INFO kablam!    |
Nov 02 22:23:13.191 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 22:23:13.191 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.191 INFO kablam! 
Nov 02 22:23:13.191 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.191 INFO kablam!   --> src/main.rs:75:5
Nov 02 22:23:13.191 INFO kablam!    |
Nov 02 22:23:13.191 INFO kablam! 75 |     Command::new("clear").status();
Nov 02 22:23:13.191 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.191 INFO kablam!    |
Nov 02 22:23:13.191 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.193 INFO kablam! 
Nov 02 22:23:13.396 INFO kablam! warning: value assigned to `grid_bis` is never read
Nov 02 22:23:13.396 INFO kablam!   --> src/main.rs:18:13
Nov 02 22:23:13.396 INFO kablam!    |
Nov 02 22:23:13.398 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 02 22:23:13.398 INFO kablam!    |             ^^^^^^^^
Nov 02 22:23:13.399 INFO kablam!    |
Nov 02 22:23:13.399 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Nov 02 22:23:13.400 INFO kablam! 
Nov 02 22:23:13.427 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.428 INFO kablam!   --> src/main.rs:97:28
Nov 02 22:23:13.428 INFO kablam!    |
Nov 02 22:23:13.429 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.429 INFO kablam!    |                            ----^^^^
Nov 02 22:23:13.430 INFO kablam!    |                            |
Nov 02 22:23:13.430 INFO kablam!    |                            help: remove this `mut`
Nov 02 22:23:13.431 INFO kablam!    |
Nov 02 22:23:13.431 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 22:23:13.432 INFO kablam! 
Nov 02 22:23:13.432 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.433 INFO kablam!    --> src/main.rs:137:13
Nov 02 22:23:13.433 INFO kablam!     |
Nov 02 22:23:13.434 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.434 INFO kablam!     |             ----^^^^
Nov 02 22:23:13.435 INFO kablam!     |             |
Nov 02 22:23:13.435 INFO kablam!     |             help: remove this `mut`
Nov 02 22:23:13.435 INFO kablam! 
Nov 02 22:23:13.443 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.444 INFO kablam!   --> src/main.rs:52:13
Nov 02 22:23:13.444 INFO kablam!    |
Nov 02 22:23:13.445 INFO kablam! 52 |             Command::new("clear").status();
Nov 02 22:23:13.445 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.446 INFO kablam!    |
Nov 02 22:23:13.446 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 22:23:13.447 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.447 INFO kablam! 
Nov 02 22:23:13.448 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.448 INFO kablam!   --> src/main.rs:75:5
Nov 02 22:23:13.449 INFO kablam!    |
Nov 02 22:23:13.449 INFO kablam! 75 |     Command::new("clear").status();
Nov 02 22:23:13.450 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.450 INFO kablam!    |
Nov 02 22:23:13.451 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.451 INFO kablam! 
Nov 02 22:23:13.525 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
Nov 02 22:23:13.536 INFO kablam! su: No module specific data is present
Nov 02 22:23:14.758 INFO running `"docker" "rm" "-f" "9ffbbc5b51fe9b310c2b2dd5a57e9641eaa8a92544f95274542a3fe1cbcdf542"`
Nov 02 22:23:15.041 INFO blam! 9ffbbc5b51fe9b310c2b2dd5a57e9641eaa8a92544f95274542a3fe1cbcdf542