Nov 30 22:39:35.944 INFO checking game-2048-0.5.1 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 22:39:35.944 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 22:39:36.463 INFO [stdout] 604337be49e5eba0b616a5310a75e38fe304fc06ccd75981387591a7b6d45f77
Nov 30 22:39:36.465 INFO running `"docker" "start" "-a" "604337be49e5eba0b616a5310a75e38fe304fc06ccd75981387591a7b6d45f77"`
Nov 30 22:39:37.992 INFO [stderr] usermod: no changes
Nov 30 22:39:38.096 INFO [stderr]     Checking matrix_display v0.3.0
Nov 30 22:39:38.844 INFO [stderr]     Checking game-2048 v0.5.1 (/source)
Nov 30 22:39:41.324 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Nov 30 22:39:41.324 INFO [stderr]  --> src/board.rs:3:24
Nov 30 22:39:41.324 INFO [stderr]   |
Nov 30 22:39:41.324 INFO [stderr] 3 | use rand::{thread_rng, sample};
Nov 30 22:39:41.324 INFO [stderr]   |                        ^^^^^^
Nov 30 22:39:41.324 INFO [stderr]   |
Nov 30 22:39:41.324 INFO [stderr]   = note: #[warn(deprecated)] on by default
Nov 30 22:39:41.324 INFO [stderr] 
Nov 30 22:39:41.324 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Nov 30 22:39:41.324 INFO [stderr]   --> src/board.rs:57:22
Nov 30 22:39:41.324 INFO [stderr]    |
Nov 30 22:39:41.324 INFO [stderr] 57 |         let mut fw = sample(&mut rng, 1..256, 17);
Nov 30 22:39:41.324 INFO [stderr]    |                      ^^^^^^
Nov 30 22:39:41.324 INFO [stderr] 
Nov 30 22:39:41.396 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Nov 30 22:39:41.396 INFO [stderr]  --> src/board.rs:3:24
Nov 30 22:39:41.396 INFO [stderr]   |
Nov 30 22:39:41.396 INFO [stderr] 3 | use rand::{thread_rng, sample};
Nov 30 22:39:41.396 INFO [stderr]   |                        ^^^^^^
Nov 30 22:39:41.408 INFO [stderr]   |
Nov 30 22:39:41.408 INFO [stderr]   = note: #[warn(deprecated)] on by default
Nov 30 22:39:41.408 INFO [stderr] 
Nov 30 22:39:41.408 INFO [stderr] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
Nov 30 22:39:41.408 INFO [stderr]   --> src/board.rs:57:22
Nov 30 22:39:41.408 INFO [stderr]    |
Nov 30 22:39:41.408 INFO [stderr] 57 |         let mut fw = sample(&mut rng, 1..256, 17);
Nov 30 22:39:41.408 INFO [stderr]    |                      ^^^^^^
Nov 30 22:39:41.408 INFO [stderr] 
Nov 30 22:39:41.572 INFO [stderr] warning: floating-point types cannot be used in patterns
Nov 30 22:39:41.572 INFO [stderr]   --> src/board.rs:22:22
Nov 30 22:39:41.572 INFO [stderr]    |
Nov 30 22:39:41.572 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Nov 30 22:39:41.572 INFO [stderr]    |                      ^^^^^
Nov 30 22:39:41.572 INFO [stderr]    |
Nov 30 22:39:41.572 INFO [stderr]    = note: #[warn(illegal_floating_point_literal_pattern)] on by default
Nov 30 22:39:41.572 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!
Nov 30 22:39:41.572 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Nov 30 22:39:41.572 INFO [stderr] 
Nov 30 22:39:41.620 INFO [stderr] warning: floating-point types cannot be used in patterns
Nov 30 22:39:41.620 INFO [stderr]   --> src/board.rs:22:22
Nov 30 22:39:41.620 INFO [stderr]    |
Nov 30 22:39:41.620 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Nov 30 22:39:41.620 INFO [stderr]    |                      ^^^^^
Nov 30 22:39:41.620 INFO [stderr]    |
Nov 30 22:39:41.620 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!
Nov 30 22:39:41.620 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Nov 30 22:39:41.620 INFO [stderr] 
Nov 30 22:39:41.652 INFO [stderr] warning: variable does not need to be mutable
Nov 30 22:39:41.652 INFO [stderr]   --> src/game.rs:70:19
Nov 30 22:39:41.652 INFO [stderr]    |
Nov 30 22:39:41.652 INFO [stderr] 70 |             .map(|mut row| {
Nov 30 22:39:41.652 INFO [stderr]    |                   ----^^^
Nov 30 22:39:41.652 INFO [stderr]    |                   |
Nov 30 22:39:41.652 INFO [stderr]    |                   help: remove this `mut`
Nov 30 22:39:41.652 INFO [stderr]    |
Nov 30 22:39:41.652 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 22:39:41.652 INFO [stderr] 
Nov 30 22:39:41.672 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 22:39:41.672 INFO [stderr]   --> src/game.rs:68:9
Nov 30 22:39:41.672 INFO [stderr]    |
Nov 30 22:39:41.672 INFO [stderr] 68 | /         self.data
Nov 30 22:39:41.672 INFO [stderr] 69 | |             .chunks_mut(4)
Nov 30 22:39:41.672 INFO [stderr] 70 | |             .map(|mut row| {
Nov 30 22:39:41.672 INFO [stderr] 71 | |                 let (new_row, new_score) = match dir {
Nov 30 22:39:41.672 INFO [stderr] ...  |
Nov 30 22:39:41.672 INFO [stderr] 86 | |             })
Nov 30 22:39:41.672 INFO [stderr] 87 | |             .collect::<Vec<_>>();
Nov 30 22:39:41.672 INFO [stderr]    | |_________________________________^
Nov 30 22:39:41.672 INFO [stderr]    |
Nov 30 22:39:41.672 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 22:39:41.672 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 22:39:41.672 INFO [stderr] 
Nov 30 22:39:41.736 INFO [stderr] warning: floating-point types cannot be used in patterns
Nov 30 22:39:41.736 INFO [stderr]   --> src/board.rs:22:22
Nov 30 22:39:41.736 INFO [stderr]    |
Nov 30 22:39:41.736 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Nov 30 22:39:41.736 INFO [stderr]    |                      ^^^^^
Nov 30 22:39:41.736 INFO [stderr]    |
Nov 30 22:39:41.736 INFO [stderr]    = note: #[warn(illegal_floating_point_literal_pattern)] on by default
Nov 30 22:39:41.736 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!
Nov 30 22:39:41.736 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Nov 30 22:39:41.740 INFO [stderr] 
Nov 30 22:39:41.825 INFO [stderr] warning: floating-point types cannot be used in patterns
Nov 30 22:39:41.825 INFO [stderr]   --> src/board.rs:22:22
Nov 30 22:39:41.825 INFO [stderr]    |
Nov 30 22:39:41.825 INFO [stderr] 22 |                      1_f64 => (".".to_string(), col),
Nov 30 22:39:41.825 INFO [stderr]    |                      ^^^^^
Nov 30 22:39:41.825 INFO [stderr]    |
Nov 30 22:39:41.825 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!
Nov 30 22:39:41.825 INFO [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
Nov 30 22:39:41.825 INFO [stderr] 
Nov 30 22:39:41.851 INFO [stderr] warning: variable does not need to be mutable
Nov 30 22:39:41.851 INFO [stderr]   --> src/game.rs:70:19
Nov 30 22:39:41.851 INFO [stderr]    |
Nov 30 22:39:41.851 INFO [stderr] 70 |             .map(|mut row| {
Nov 30 22:39:41.851 INFO [stderr]    |                   ----^^^
Nov 30 22:39:41.851 INFO [stderr]    |                   |
Nov 30 22:39:41.851 INFO [stderr]    |                   help: remove this `mut`
Nov 30 22:39:41.851 INFO [stderr]    |
Nov 30 22:39:41.851 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 22:39:41.851 INFO [stderr] 
Nov 30 22:39:41.868 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 22:39:41.869 INFO [stderr]   --> src/game.rs:68:9
Nov 30 22:39:41.869 INFO [stderr]    |
Nov 30 22:39:41.869 INFO [stderr] 68 | /         self.data
Nov 30 22:39:41.869 INFO [stderr] 69 | |             .chunks_mut(4)
Nov 30 22:39:41.870 INFO [stderr] 70 | |             .map(|mut row| {
Nov 30 22:39:41.870 INFO [stderr] 71 | |                 let (new_row, new_score) = match dir {
Nov 30 22:39:41.870 INFO [stderr] ...  |
Nov 30 22:39:41.870 INFO [stderr] 86 | |             })
Nov 30 22:39:41.871 INFO [stderr] 87 | |             .collect::<Vec<_>>();
Nov 30 22:39:41.871 INFO [stderr]    | |_________________________________^
Nov 30 22:39:41.871 INFO [stderr]    |
Nov 30 22:39:41.871 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 22:39:41.871 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 22:39:41.871 INFO [stderr] 
Nov 30 22:39:41.917 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
Nov 30 22:39:41.921 INFO [stderr] su: No module specific data is present
Nov 30 22:39:42.810 INFO running `"docker" "inspect" "604337be49e5eba0b616a5310a75e38fe304fc06ccd75981387591a7b6d45f77"`
Nov 30 22:39:43.196 INFO running `"docker" "rm" "-f" "604337be49e5eba0b616a5310a75e38fe304fc06ccd75981387591a7b6d45f77"`
Nov 30 22:39:43.471 INFO [stdout] 604337be49e5eba0b616a5310a75e38fe304fc06ccd75981387591a7b6d45f77