Nov 02 08:39:27.337 INFO checking pierrechevalier83/2048-rs against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 08:39:27.339 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-7/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 08:39:27.825 INFO blam! e68947657460467f167823fae397d0bbd4bd10184a9299fc535af8c7764ce006
Nov 02 08:39:27.827 INFO running `"docker" "start" "-a" "e68947657460467f167823fae397d0bbd4bd10184a9299fc535af8c7764ce006"`
Nov 02 08:39:28.925 INFO kablam! usermod: no changes
Nov 02 08:39:29.068 INFO kablam!     Checking termion v1.2.0
Nov 02 08:39:29.069 INFO kablam!     Checking matrix_display v0.3.0
Nov 02 08:39:29.069 INFO kablam!     Checking num-bigint v0.1.36
Nov 02 08:39:31.000 INFO kablam!     Checking num-rational v0.1.36
Nov 02 08:39:31.778 INFO kablam!     Checking num v0.1.37
Nov 02 08:39:32.128 INFO kablam!     Checking game-2048 v0.5.1 (/source)
Nov 02 08:39:33.172 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 02 08:39:33.173 INFO kablam!   --> src/game.rs:69:9
Nov 02 08:39:33.173 INFO kablam!    |
Nov 02 08:39:33.174 INFO kablam! 69 | /         self.data
Nov 02 08:39:33.175 INFO kablam! 70 | |             .chunks_mut(4)
Nov 02 08:39:33.175 INFO kablam! 71 | |             .map(|row| {
Nov 02 08:39:33.176 INFO kablam! 72 | |                 let (new_row, new_score) = match dir {
Nov 02 08:39:33.176 INFO kablam! ...  |
Nov 02 08:39:33.177 INFO kablam! 87 | |             })
Nov 02 08:39:33.177 INFO kablam! 88 | |             .collect::<Vec<_>>();
Nov 02 08:39:33.178 INFO kablam!    | |_________________________________^
Nov 02 08:39:33.179 INFO kablam!    |
Nov 02 08:39:33.180 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 08:39:33.180 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 02 08:39:33.181 INFO kablam! 
Nov 02 08:39:33.403 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 02 08:39:33.403 INFO kablam!   --> src/game.rs:69:9
Nov 02 08:39:33.403 INFO kablam!    |
Nov 02 08:39:33.403 INFO kablam! 69 | /         self.data
Nov 02 08:39:33.403 INFO kablam! 70 | |             .chunks_mut(4)
Nov 02 08:39:33.403 INFO kablam! 71 | |             .map(|row| {
Nov 02 08:39:33.403 INFO kablam! 72 | |                 let (new_row, new_score) = match dir {
Nov 02 08:39:33.403 INFO kablam! ...  |
Nov 02 08:39:33.403 INFO kablam! 87 | |             })
Nov 02 08:39:33.403 INFO kablam! 88 | |             .collect::<Vec<_>>();
Nov 02 08:39:33.403 INFO kablam!    | |_________________________________^
Nov 02 08:39:33.406 INFO kablam!    |
Nov 02 08:39:33.406 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 02 08:39:33.406 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 02 08:39:33.406 INFO kablam! 
Nov 02 08:39:33.453 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.50s
Nov 02 08:39:33.459 INFO kablam! su: No module specific data is present
Nov 02 08:39:34.774 INFO running `"docker" "rm" "-f" "e68947657460467f167823fae397d0bbd4bd10184a9299fc535af8c7764ce006"`
Nov 02 08:39:35.138 INFO blam! e68947657460467f167823fae397d0bbd4bd10184a9299fc535af8c7764ce006