Nov 02 22:23:09.635 INFO checking Cackbone/2048.rs against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 22:23:09.635 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-1/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 22:23:10.108 INFO blam! d492ddddd53a86ce48111c5c604534d5178a8c7077f2aac078d394b5e8445f3b
Nov 02 22:23:10.117 INFO running `"docker" "start" "-a" "d492ddddd53a86ce48111c5c604534d5178a8c7077f2aac078d394b5e8445f3b"`
Nov 02 22:23:11.739 INFO kablam! usermod: no changes
Nov 02 22:23:11.848 INFO kablam!     Checking rust_2048 v0.1.0 (/source)
Nov 02 22:23:13.148 INFO kablam! warning: value assigned to `grid_bis` is never read
Nov 02 22:23:13.151 INFO kablam!   --> src/main.rs:18:13
Nov 02 22:23:13.152 INFO kablam!    |
Nov 02 22:23:13.152 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 02 22:23:13.153 INFO kablam!    |             ^^^^^^^^
Nov 02 22:23:13.153 INFO kablam!    |
Nov 02 22:23:13.154 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Nov 02 22:23:13.154 INFO kablam! 
Nov 02 22:23:13.159 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.159 INFO kablam!   --> src/main.rs:97:28
Nov 02 22:23:13.160 INFO kablam!    |
Nov 02 22:23:13.161 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.161 INFO kablam!    |                            ----^^^^
Nov 02 22:23:13.162 INFO kablam!    |                            |
Nov 02 22:23:13.162 INFO kablam!    |                            help: remove this `mut`
Nov 02 22:23:13.163 INFO kablam!    |
Nov 02 22:23:13.163 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 22:23:13.164 INFO kablam! 
Nov 02 22:23:13.164 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.165 INFO kablam!    --> src/main.rs:137:13
Nov 02 22:23:13.166 INFO kablam!     |
Nov 02 22:23:13.166 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.166 INFO kablam!     |             ----^^^^
Nov 02 22:23:13.166 INFO kablam!     |             |
Nov 02 22:23:13.166 INFO kablam!     |             help: remove this `mut`
Nov 02 22:23:13.166 INFO kablam! 
Nov 02 22:23:13.186 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.186 INFO kablam!   --> src/main.rs:52:13
Nov 02 22:23:13.186 INFO kablam!    |
Nov 02 22:23:13.186 INFO kablam! 52 |             Command::new("clear").status();
Nov 02 22:23:13.186 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.186 INFO kablam!    |
Nov 02 22:23:13.186 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 22:23:13.186 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.186 INFO kablam! 
Nov 02 22:23:13.186 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.186 INFO kablam!   --> src/main.rs:75:5
Nov 02 22:23:13.186 INFO kablam!    |
Nov 02 22:23:13.186 INFO kablam! 75 |     Command::new("clear").status();
Nov 02 22:23:13.186 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.186 INFO kablam!    |
Nov 02 22:23:13.186 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.186 INFO kablam! 
Nov 02 22:23:13.304 INFO kablam! warning: value assigned to `grid_bis` is never read
Nov 02 22:23:13.305 INFO kablam!   --> src/main.rs:18:13
Nov 02 22:23:13.306 INFO kablam!    |
Nov 02 22:23:13.306 INFO kablam! 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 02 22:23:13.306 INFO kablam!    |             ^^^^^^^^
Nov 02 22:23:13.307 INFO kablam!    |
Nov 02 22:23:13.307 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Nov 02 22:23:13.308 INFO kablam! 
Nov 02 22:23:13.309 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.310 INFO kablam!   --> src/main.rs:97:28
Nov 02 22:23:13.310 INFO kablam!    |
Nov 02 22:23:13.310 INFO kablam! 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.311 INFO kablam!    |                            ----^^^^
Nov 02 22:23:13.311 INFO kablam!    |                            |
Nov 02 22:23:13.312 INFO kablam!    |                            help: remove this `mut`
Nov 02 22:23:13.312 INFO kablam!    |
Nov 02 22:23:13.313 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 22:23:13.313 INFO kablam! 
Nov 02 22:23:13.313 INFO kablam! warning: variable does not need to be mutable
Nov 02 22:23:13.314 INFO kablam!    --> src/main.rs:137:13
Nov 02 22:23:13.314 INFO kablam!     |
Nov 02 22:23:13.315 INFO kablam! 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 02 22:23:13.315 INFO kablam!     |             ----^^^^
Nov 02 22:23:13.316 INFO kablam!     |             |
Nov 02 22:23:13.316 INFO kablam!     |             help: remove this `mut`
Nov 02 22:23:13.316 INFO kablam! 
Nov 02 22:23:13.320 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.321 INFO kablam!   --> src/main.rs:52:13
Nov 02 22:23:13.321 INFO kablam!    |
Nov 02 22:23:13.322 INFO kablam! 52 |             Command::new("clear").status();
Nov 02 22:23:13.322 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.322 INFO kablam!    |
Nov 02 22:23:13.323 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 22:23:13.323 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.324 INFO kablam! 
Nov 02 22:23:13.324 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 22:23:13.325 INFO kablam!   --> src/main.rs:75:5
Nov 02 22:23:13.325 INFO kablam!    |
Nov 02 22:23:13.325 INFO kablam! 75 |     Command::new("clear").status();
Nov 02 22:23:13.326 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:23:13.326 INFO kablam!    |
Nov 02 22:23:13.327 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 22:23:13.327 INFO kablam! 
Nov 02 22:23:13.397 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
Nov 02 22:23:13.400 INFO kablam! su: No module specific data is present
Nov 02 22:23:14.563 INFO running `"docker" "rm" "-f" "d492ddddd53a86ce48111c5c604534d5178a8c7077f2aac078d394b5e8445f3b"`
Nov 02 22:23:14.976 INFO blam! d492ddddd53a86ce48111c5c604534d5178a8c7077f2aac078d394b5e8445f3b