Oct 26 22:52:26.292 INFO checking pierrechevalier83/2048-rs against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 26 22:52:26.294 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-7/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 26 22:52:26.779 INFO blam! c0057ade9bce45d56fc34ff5886faef2b91ed56b2235cb470aa12c5d1c8a596f
Oct 26 22:52:26.785 INFO running `"docker" "start" "-a" "c0057ade9bce45d56fc34ff5886faef2b91ed56b2235cb470aa12c5d1c8a596f"`
Oct 26 22:52:28.490 INFO kablam! usermod: no changes
Oct 26 22:52:28.663 INFO kablam!     Checking termion v1.2.0
Oct 26 22:52:28.668 INFO kablam!     Checking num-complex v0.1.36
Oct 26 22:52:28.668 INFO kablam!     Checking matrix_display v0.3.0
Oct 26 22:52:28.668 INFO kablam!     Checking num-bigint v0.1.36
Oct 26 22:52:30.912 INFO kablam!     Checking num-rational v0.1.36
Oct 26 22:52:31.571 INFO kablam!     Checking num v0.1.37
Oct 26 22:52:31.971 INFO kablam!     Checking game-2048 v0.5.1 (/source)
Oct 26 22:52:32.883 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Oct 26 22:52:32.884 INFO kablam!   --> src/game.rs:69:9
Oct 26 22:52:32.884 INFO kablam!    |
Oct 26 22:52:32.884 INFO kablam! 69 | /         self.data
Oct 26 22:52:32.885 INFO kablam! 70 | |             .chunks_mut(4)
Oct 26 22:52:32.885 INFO kablam! 71 | |             .map(|row| {
Oct 26 22:52:32.885 INFO kablam! 72 | |                 let (new_row, new_score) = match dir {
Oct 26 22:52:32.886 INFO kablam! ...  |
Oct 26 22:52:32.886 INFO kablam! 87 | |             })
Oct 26 22:52:32.886 INFO kablam! 88 | |             .collect::<Vec<_>>();
Oct 26 22:52:32.886 INFO kablam!    | |_________________________________^
Oct 26 22:52:32.887 INFO kablam!    |
Oct 26 22:52:32.887 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 26 22:52:32.887 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Oct 26 22:52:32.888 INFO kablam! 
Oct 26 22:52:33.101 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Oct 26 22:52:33.101 INFO kablam!   --> src/game.rs:69:9
Oct 26 22:52:33.102 INFO kablam!    |
Oct 26 22:52:33.102 INFO kablam! 69 | /         self.data
Oct 26 22:52:33.102 INFO kablam! 70 | |             .chunks_mut(4)
Oct 26 22:52:33.102 INFO kablam! 71 | |             .map(|row| {
Oct 26 22:52:33.103 INFO kablam! 72 | |                 let (new_row, new_score) = match dir {
Oct 26 22:52:33.103 INFO kablam! ...  |
Oct 26 22:52:33.103 INFO kablam! 87 | |             })
Oct 26 22:52:33.104 INFO kablam! 88 | |             .collect::<Vec<_>>();
Oct 26 22:52:33.104 INFO kablam!    | |_________________________________^
Oct 26 22:52:33.104 INFO kablam!    |
Oct 26 22:52:33.105 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 26 22:52:33.105 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Oct 26 22:52:33.105 INFO kablam! 
Oct 26 22:52:33.128 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
Oct 26 22:52:33.134 INFO kablam! su: No module specific data is present
Oct 26 22:52:34.152 INFO running `"docker" "rm" "-f" "c0057ade9bce45d56fc34ff5886faef2b91ed56b2235cb470aa12c5d1c8a596f"`
Oct 26 22:52:34.499 INFO blam! c0057ade9bce45d56fc34ff5886faef2b91ed56b2235cb470aa12c5d1c8a596f