Dec 05 13:31:07.655 INFO checking game-2048-0.5.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 13:31:07.655 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 13:31:08.080 INFO [stdout] 53d1d0b6e556ed102bd8a3b99224ed99ae2a1686a20d1eecb19a8e312a2959c0
Dec 05 13:31:08.083 INFO running `"docker" "start" "-a" "53d1d0b6e556ed102bd8a3b99224ed99ae2a1686a20d1eecb19a8e312a2959c0"`
Dec 05 13:31:09.603 INFO [stderr] usermod: no changes
Dec 05 13:31:09.779 INFO [stderr]     Checking matrix_display v0.3.0
Dec 05 13:31:10.779 INFO [stderr]     Checking game-2048 v0.5.1 (/source)
Dec 05 13:31:12.704 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Dec 05 13:31:12.704 INFO [stderr]  --> src/board.rs:3:24
Dec 05 13:31:12.704 INFO [stderr]   |
Dec 05 13:31:12.704 INFO [stderr] 3 | use rand::{thread_rng, sample};
Dec 05 13:31:12.704 INFO [stderr]   |                        ^^^^^^
Dec 05 13:31:12.711 INFO [stderr]   |
Dec 05 13:31:12.711 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 05 13:31:12.711 INFO [stderr] 
Dec 05 13:31:12.713 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Dec 05 13:31:12.713 INFO [stderr]   --> src/board.rs:57:22
Dec 05 13:31:12.713 INFO [stderr]    |
Dec 05 13:31:12.713 INFO [stderr] 57 |         let mut fw = sample(&mut rng, 1..256, 17);
Dec 05 13:31:12.714 INFO [stderr]    |                      ^^^^^^
Dec 05 13:31:12.714 INFO [stderr] 
Dec 05 13:31:12.947 INFO [stderr] warning: floating-point types cannot be used in patterns
Dec 05 13:31:12.947 INFO [stderr]   --> src/board.rs:22:22
Dec 05 13:31:12.947 INFO [stderr]    |
Dec 05 13:31:12.948 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Dec 05 13:31:12.948 INFO [stderr]    |                      ^^^^^
Dec 05 13:31:12.948 INFO [stderr]    |
Dec 05 13:31:12.948 INFO [stderr]    = note: #[warn(illegal_floating_point_literal_pattern)] on by default
Dec 05 13:31:12.949 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 05 13:31:12.949 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Dec 05 13:31:12.949 INFO [stderr] 
Dec 05 13:31:13.007 INFO [stderr] warning: floating-point types cannot be used in patterns
Dec 05 13:31:13.007 INFO [stderr]   --> src/board.rs:22:22
Dec 05 13:31:13.007 INFO [stderr]    |
Dec 05 13:31:13.008 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Dec 05 13:31:13.008 INFO [stderr]    |                      ^^^^^
Dec 05 13:31:13.008 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Dec 05 13:31:13.008 INFO [stderr]  --> src/board.rs:3:24
Dec 05 13:31:13.008 INFO [stderr]   |
Dec 05 13:31:13.008 INFO [stderr] 3 | use rand::{thread_rng, sample};
Dec 05 13:31:13.008 INFO [stderr]   |                        ^^^^^^
Dec 05 13:31:13.008 INFO [stderr]   |
Dec 05 13:31:13.008 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 05 13:31:13.008 INFO [stderr] 
Dec 05 13:31:13.008 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Dec 05 13:31:13.008 INFO [stderr]   --> src/board.rs:57:22
Dec 05 13:31:13.008 INFO [stderr]    |
Dec 05 13:31:13.008 INFO [stderr] 57 |         let mut fw = sample(&mut rng, 1..256, 17);
Dec 05 13:31:13.008 INFO [stderr]    |                      ^^^^^^
Dec 05 13:31:13.008 INFO [stderr] 
Dec 05 13:31:13.008 INFO [stderr]    |
Dec 05 13:31:13.008 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 05 13:31:13.008 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Dec 05 13:31:13.009 INFO [stderr] 
Dec 05 13:31:13.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:31:13.051 INFO [stderr]   --> src/game.rs:70:19
Dec 05 13:31:13.051 INFO [stderr]    |
Dec 05 13:31:13.051 INFO [stderr] 70 |             .map(|mut row| {
Dec 05 13:31:13.051 INFO [stderr]    |                   ----^^^
Dec 05 13:31:13.051 INFO [stderr]    |                   |
Dec 05 13:31:13.051 INFO [stderr]    |                   help: remove this `mut`
Dec 05 13:31:13.051 INFO [stderr]    |
Dec 05 13:31:13.051 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 13:31:13.051 INFO [stderr] 
Dec 05 13:31:13.071 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 13:31:13.071 INFO [stderr]   --> src/game.rs:68:9
Dec 05 13:31:13.071 INFO [stderr]    |
Dec 05 13:31:13.071 INFO [stderr] 68 | /         self.data
Dec 05 13:31:13.071 INFO [stderr] 69 | |             .chunks_mut(4)
Dec 05 13:31:13.071 INFO [stderr] 70 | |             .map(|mut row| {
Dec 05 13:31:13.071 INFO [stderr] 71 | |                 let (new_row, new_score) = match dir {
Dec 05 13:31:13.071 INFO [stderr] ...  |
Dec 05 13:31:13.071 INFO [stderr] 86 | |             })
Dec 05 13:31:13.071 INFO [stderr] 87 | |             .collect::<Vec<_>>();
Dec 05 13:31:13.071 INFO [stderr]    | |_________________________________^
Dec 05 13:31:13.071 INFO [stderr]    |
Dec 05 13:31:13.071 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 13:31:13.071 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 13:31:13.071 INFO [stderr] 
Dec 05 13:31:13.160 INFO [stderr] warning: floating-point types cannot be used in patterns
Dec 05 13:31:13.161 INFO [stderr]   --> src/board.rs:22:22
Dec 05 13:31:13.161 INFO [stderr]    |
Dec 05 13:31:13.161 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Dec 05 13:31:13.161 INFO [stderr]    |                      ^^^^^
Dec 05 13:31:13.161 INFO [stderr]    |
Dec 05 13:31:13.161 INFO [stderr]    = note: #[warn(illegal_floating_point_literal_pattern)] on by default
Dec 05 13:31:13.161 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 05 13:31:13.161 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Dec 05 13:31:13.161 INFO [stderr] 
Dec 05 13:31:13.183 INFO [stderr] warning: floating-point types cannot be used in patterns
Dec 05 13:31:13.183 INFO [stderr]   --> src/board.rs:22:22
Dec 05 13:31:13.184 INFO [stderr]    |
Dec 05 13:31:13.184 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Dec 05 13:31:13.184 INFO [stderr]    |                      ^^^^^
Dec 05 13:31:13.184 INFO [stderr]    |
Dec 05 13:31:13.185 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 05 13:31:13.185 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Dec 05 13:31:13.185 INFO [stderr] 
Dec 05 13:31:13.204 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:31:13.204 INFO [stderr]   --> src/game.rs:70:19
Dec 05 13:31:13.204 INFO [stderr]    |
Dec 05 13:31:13.204 INFO [stderr] 70 |             .map(|mut row| {
Dec 05 13:31:13.205 INFO [stderr]    |                   ----^^^
Dec 05 13:31:13.205 INFO [stderr]    |                   |
Dec 05 13:31:13.205 INFO [stderr]    |                   help: remove this `mut`
Dec 05 13:31:13.205 INFO [stderr]    |
Dec 05 13:31:13.206 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 13:31:13.206 INFO [stderr] 
Dec 05 13:31:13.209 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 13:31:13.209 INFO [stderr]   --> src/game.rs:68:9
Dec 05 13:31:13.210 INFO [stderr]    |
Dec 05 13:31:13.210 INFO [stderr] 68 | /         self.data
Dec 05 13:31:13.210 INFO [stderr] 69 | |             .chunks_mut(4)
Dec 05 13:31:13.210 INFO [stderr] 70 | |             .map(|mut row| {
Dec 05 13:31:13.211 INFO [stderr] 71 | |                 let (new_row, new_score) = match dir {
Dec 05 13:31:13.211 INFO [stderr] ...  |
Dec 05 13:31:13.211 INFO [stderr] 86 | |             })
Dec 05 13:31:13.211 INFO [stderr] 87 | |             .collect::<Vec<_>>();
Dec 05 13:31:13.212 INFO [stderr]    | |_________________________________^
Dec 05 13:31:13.212 INFO [stderr]    |
Dec 05 13:31:13.212 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 13:31:13.212 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 13:31:13.213 INFO [stderr] 
Dec 05 13:31:13.250 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.62s
Dec 05 13:31:13.263 INFO [stderr] su: No module specific data is present
Dec 05 13:31:14.679 INFO running `"docker" "inspect" "53d1d0b6e556ed102bd8a3b99224ed99ae2a1686a20d1eecb19a8e312a2959c0"`
Dec 05 13:31:15.031 INFO running `"docker" "rm" "-f" "53d1d0b6e556ed102bd8a3b99224ed99ae2a1686a20d1eecb19a8e312a2959c0"`
Dec 05 13:31:15.411 INFO [stdout] 53d1d0b6e556ed102bd8a3b99224ed99ae2a1686a20d1eecb19a8e312a2959c0