Nov 02 08:39:28.376 INFO checking pierrechevalier83/2048-rs against master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862 for pr-55517
Nov 02 08:39:28.376 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-6/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 08:39:28.842 INFO blam! c48c4d2fbfa18039df3c839354c33560795bd02bb400d258e7383319787b546e
Nov 02 08:39:28.844 INFO running `"docker" "start" "-a" "c48c4d2fbfa18039df3c839354c33560795bd02bb400d258e7383319787b546e"`
Nov 02 08:39:31.083 INFO kablam! usermod: no changes
Nov 02 08:39:31.330 INFO kablam!     Checking termion v1.2.0
Nov 02 08:39:31.336 INFO kablam!     Checking num-integer v0.1.33
Nov 02 08:39:31.344 INFO kablam!     Checking num-complex v0.1.36
Nov 02 08:39:31.344 INFO kablam!     Checking matrix_display v0.3.0
Nov 02 08:39:32.592 INFO kablam!     Checking num-bigint v0.1.36
Nov 02 08:39:32.593 INFO kablam!     Checking num-iter v0.1.33
Nov 02 08:39:34.440 INFO kablam!     Checking num-rational v0.1.36
Nov 02 08:39:35.240 INFO kablam!     Checking num v0.1.37
Nov 02 08:39:35.626 INFO kablam!     Checking game-2048 v0.5.1 (/source)
Nov 02 08:39:36.576 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 02 08:39:36.576 INFO kablam!   --> src/game.rs:69:9
Nov 02 08:39:36.576 INFO kablam!    |
Nov 02 08:39:36.576 INFO kablam! 69 | /         self.data
Nov 02 08:39:36.576 INFO kablam! 70 | |             .chunks_mut(4)
Nov 02 08:39:36.576 INFO kablam! 71 | |             .map(|row| {
Nov 02 08:39:36.576 INFO kablam! 72 | |                 let (new_row, new_score) = match dir {
Nov 02 08:39:36.576 INFO kablam! ...  |
Nov 02 08:39:36.576 INFO kablam! 87 | |             })
Nov 02 08:39:36.576 INFO kablam! 88 | |             .collect::<Vec<_>>();
Nov 02 08:39:36.576 INFO kablam!    | |_________________________________^
Nov 02 08:39:36.576 INFO kablam!    |
Nov 02 08:39:36.576 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 08:39:36.576 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 02 08:39:36.576 INFO kablam! 
Nov 02 08:39:36.832 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 02 08:39:36.833 INFO kablam!   --> src/game.rs:69:9
Nov 02 08:39:36.833 INFO kablam!    |
Nov 02 08:39:36.833 INFO kablam! 69 | /         self.data
Nov 02 08:39:36.834 INFO kablam! 70 | |             .chunks_mut(4)
Nov 02 08:39:36.834 INFO kablam! 71 | |             .map(|row| {
Nov 02 08:39:36.834 INFO kablam! 72 | |                 let (new_row, new_score) = match dir {
Nov 02 08:39:36.835 INFO kablam! ...  |
Nov 02 08:39:36.835 INFO kablam! 87 | |             })
Nov 02 08:39:36.835 INFO kablam! 88 | |             .collect::<Vec<_>>();
Nov 02 08:39:36.836 INFO kablam!    | |_________________________________^
Nov 02 08:39:36.836 INFO kablam!    |
Nov 02 08:39:36.836 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 08:39:36.837 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 02 08:39:36.837 INFO kablam! 
Nov 02 08:39:36.857 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.74s
Nov 02 08:39:36.875 INFO kablam! su: No module specific data is present
Nov 02 08:39:37.882 INFO running `"docker" "rm" "-f" "c48c4d2fbfa18039df3c839354c33560795bd02bb400d258e7383319787b546e"`
Nov 02 08:39:38.156 INFO blam! c48c4d2fbfa18039df3c839354c33560795bd02bb400d258e7383319787b546e