[INFO] updating cached repository dmit/riichi-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dmit/riichi-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dmit/riichi-rs" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/dmit/riichi-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/dmit/riichi-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dmit/riichi-rs" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dmit/riichi-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dmit/riichi-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a3a4b569466bb601426ba53dad70efcf20824844
[INFO] sha for GitHub repo dmit/riichi-rs: a3a4b569466bb601426ba53dad70efcf20824844
[INFO] validating manifest of dmit/riichi-rs on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dmit/riichi-rs on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dmit/riichi-rs
[INFO] finished frobbing dmit/riichi-rs
[INFO] frobbed toml for dmit/riichi-rs written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/dmit/riichi-rs/Cargo.toml
[INFO] started frobbing dmit/riichi-rs
[INFO] finished frobbing dmit/riichi-rs
[INFO] frobbed toml for dmit/riichi-rs written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dmit/riichi-rs/Cargo.toml
[INFO] crate dmit/riichi-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dmit/riichi-rs against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-6/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dmit/riichi-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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4b6ce13b622d131eb6c2baeef730c8bacd0f9196838df275d6b759443f15516e
[INFO] running `"docker" "start" "-a" "4b6ce13b622d131eb6c2baeef730c8bacd0f9196838df275d6b759443f15516e"`
[INFO] [stderr]     Checking riichi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `groups`
[INFO] [stderr]    --> src/tile.rs:301:13
[INFO] [stderr]     |
[INFO] [stderr] 301 |         let groups = self.groups();
[INFO] [stderr]     |             ^^^^^^ help: consider prefixing with an underscore: `_groups`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `groups`
[INFO] [stderr]    --> src/tile.rs:301:13
[INFO] [stderr]     |
[INFO] [stderr] 301 |         let groups = self.groups();
[INFO] [stderr]     |             ^^^^^^ help: consider prefixing with an underscore: `_groups`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `same_type`
[INFO] [stderr]    --> src/tile.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn same_type(a: Tile, b: Tile) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Chi`
[INFO] [stderr]    --> src/tile.rs:267:5
[INFO] [stderr]     |
[INFO] [stderr] 267 |     Chi,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pon`
[INFO] [stderr]    --> src/tile.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     Pon,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Kan`
[INFO] [stderr]    --> src/tile.rs:269:5
[INFO] [stderr]     |
[INFO] [stderr] 269 |     Kan,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `group_type`
[INFO] [stderr]    --> src/tile.rs:368:5
[INFO] [stderr]     |
[INFO] [stderr] 368 |     fn group_type(tiles: &[Tile]) -> Option<Group> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `same_type`
[INFO] [stderr]    --> src/tile.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn same_type(a: Tile, b: Tile) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Chi`
[INFO] [stderr]    --> src/tile.rs:267:5
[INFO] [stderr]     |
[INFO] [stderr] 267 |     Chi,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pon`
[INFO] [stderr]    --> src/tile.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     Pon,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Kan`
[INFO] [stderr]    --> src/tile.rs:269:5
[INFO] [stderr]     |
[INFO] [stderr] 269 |     Kan,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `group_type`
[INFO] [stderr]    --> src/tile.rs:368:5
[INFO] [stderr]     |
[INFO] [stderr] 368 |     fn group_type(tiles: &[Tile]) -> Option<Group> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "4b6ce13b622d131eb6c2baeef730c8bacd0f9196838df275d6b759443f15516e"`
[INFO] running `"docker" "rm" "-f" "4b6ce13b622d131eb6c2baeef730c8bacd0f9196838df275d6b759443f15516e"`
[INFO] [stdout] 4b6ce13b622d131eb6c2baeef730c8bacd0f9196838df275d6b759443f15516e