[INFO] cloning repository pierrechevalier83/2048-rs
[INFO] running `"git" "clone" "--bare" "git://github.com/pierrechevalier83/2048-rs.git" "work/cache/sources/gh/pierrechevalier83/2048-rs"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/pierrechevalier83/2048-rs'...
[INFO] running `"git" "clone" "work/cache/sources/gh/pierrechevalier83/2048-rs" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/pierrechevalier83/2048-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/pierrechevalier83/2048-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pierrechevalier83/2048-rs" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/pierrechevalier83/2048-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/pierrechevalier83/2048-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8de61e8e0342d54b0ae44b937ecb3952c4d2a94c
[INFO] sha for GitHub repo pierrechevalier83/2048-rs: 8de61e8e0342d54b0ae44b937ecb3952c4d2a94c
[INFO] validating manifest of pierrechevalier83/2048-rs on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pierrechevalier83/2048-rs on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pierrechevalier83/2048-rs
[INFO] finished frobbing pierrechevalier83/2048-rs
[INFO] frobbed toml for pierrechevalier83/2048-rs written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/pierrechevalier83/2048-rs/Cargo.toml
[INFO] started frobbing pierrechevalier83/2048-rs
[INFO] finished frobbing pierrechevalier83/2048-rs
[INFO] frobbed toml for pierrechevalier83/2048-rs written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/pierrechevalier83/2048-rs/Cargo.toml
[INFO] crate pierrechevalier83/2048-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termion v1.2.0
[INFO] [stderr]   Downloaded matrix_display v0.3.0
[INFO] [stderr]   Downloaded clippy_lints v0.0.165
[INFO] [stderr]   Downloaded clippy v0.0.165
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pierrechevalier83/2048-rs against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/pierrechevalier83/2048-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 4067751b9702ea5a7ba7795b00557d97ffc83ccf0fae7c0fa96ddbe77ae474a4
[INFO] running `"docker" "start" "-a" "4067751b9702ea5a7ba7795b00557d97ffc83ccf0fae7c0fa96ddbe77ae474a4"`
[INFO] [stderr]    Compiling termion v1.2.0
[INFO] [stderr]    Compiling matrix_display v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.1.36
[INFO] [stderr]    Compiling num-rational v0.1.36
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling game-2048 v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]   --> src/game.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 | /         self.data
[INFO] [stderr] 70 | |             .chunks_mut(4)
[INFO] [stderr] 71 | |             .map(|row| {
[INFO] [stderr] 72 | |                 let (new_row, new_score) = match dir {
[INFO] [stderr] ...  |
[INFO] [stderr] 87 | |             })
[INFO] [stderr] 88 | |             .collect::<Vec<_>>();
[INFO] [stderr]    | |_________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.63s
[INFO] running `"docker" "inspect" "4067751b9702ea5a7ba7795b00557d97ffc83ccf0fae7c0fa96ddbe77ae474a4"`
[INFO] running `"docker" "rm" "-f" "4067751b9702ea5a7ba7795b00557d97ffc83ccf0fae7c0fa96ddbe77ae474a4"`
[INFO] [stdout] 4067751b9702ea5a7ba7795b00557d97ffc83ccf0fae7c0fa96ddbe77ae474a4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/pierrechevalier83/2048-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 447c7c2b24cca63c32d8a3148c3cdcf1b4b314db9ebc55c21a367c41128700ec
[INFO] running `"docker" "start" "-a" "447c7c2b24cca63c32d8a3148c3cdcf1b4b314db9ebc55c21a367c41128700ec"`
[INFO] [stderr]    Compiling game-2048 v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]   --> src/game.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 | /         self.data
[INFO] [stderr] 70 | |             .chunks_mut(4)
[INFO] [stderr] 71 | |             .map(|row| {
[INFO] [stderr] 72 | |                 let (new_row, new_score) = match dir {
[INFO] [stderr] ...  |
[INFO] [stderr] 87 | |             })
[INFO] [stderr] 88 | |             .collect::<Vec<_>>();
[INFO] [stderr]    | |_________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "447c7c2b24cca63c32d8a3148c3cdcf1b4b314db9ebc55c21a367c41128700ec"`
[INFO] running `"docker" "rm" "-f" "447c7c2b24cca63c32d8a3148c3cdcf1b4b314db9ebc55c21a367c41128700ec"`
[INFO] [stdout] 447c7c2b24cca63c32d8a3148c3cdcf1b4b314db9ebc55c21a367c41128700ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/pierrechevalier83/2048-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 573c83569cc7f1c9d416868554b82a522332fbe25250b156323e982e4f80cda9
[INFO] running `"docker" "start" "-a" "573c83569cc7f1c9d416868554b82a522332fbe25250b156323e982e4f80cda9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/game_2048-64ae890dc71210ea
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test algorithm::slide_test::test_slide_left_with_three_same_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_left_with_three_different_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_left_with_one_element ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_left_with_four_same_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_right_with_four_same_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_right_with_one_element ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_right_with_three_different_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_right_with_three_same_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_right_with_two_different_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_right_with_two_same_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_left_with_two_different_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_left_with_two_same_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_right_with_four_different_elements ... ok
[INFO] [stdout] test algorithm::slide_test::test_slide_left_with_four_different_elements ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "573c83569cc7f1c9d416868554b82a522332fbe25250b156323e982e4f80cda9"`
[INFO] running `"docker" "rm" "-f" "573c83569cc7f1c9d416868554b82a522332fbe25250b156323e982e4f80cda9"`
[INFO] [stdout] 573c83569cc7f1c9d416868554b82a522332fbe25250b156323e982e4f80cda9