[INFO] updating cached repository Mortal/blokus
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Mortal/blokus
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Mortal/blokus" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Mortal/blokus"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Mortal/blokus'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mortal/blokus" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Mortal/blokus"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Mortal/blokus'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e93dca7e806c4c308ac1a0f927646b1cf59eb234
[INFO] sha for GitHub repo Mortal/blokus: e93dca7e806c4c308ac1a0f927646b1cf59eb234
[INFO] validating manifest of Mortal/blokus on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Mortal/blokus on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Mortal/blokus
[INFO] finished frobbing Mortal/blokus
[INFO] frobbed toml for Mortal/blokus written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Mortal/blokus/Cargo.toml
[INFO] started frobbing Mortal/blokus
[INFO] finished frobbing Mortal/blokus
[INFO] frobbed toml for Mortal/blokus written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Mortal/blokus/Cargo.toml
[INFO] crate Mortal/blokus already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Mortal/blokus against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-4/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Mortal/blokus:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 19ead1731f873705f4e9097621c0d1dba4ba2dea1db84ca0c47a14f1a890d05d
[INFO] running `"docker" "start" "-a" "19ead1731f873705f4e9097621c0d1dba4ba2dea1db84ca0c47a14f1a890d05d"`
[INFO] [stderr]     Checking blokus v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/board.rs:249:13
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let a = if first < margin { 0 } else { first - margin };
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/board.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let b = (last + margin + 1).min(self.flags.len());
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/board.rs:105:75
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let translations = v.translations(board_width, board_height).map(|(o, p)| o).collect::<Vec<_>>();
[INFO] [stderr]     |                                                                           ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/board.rs:249:13
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let a = if first < margin { 0 } else { first - margin };
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/board.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let b = (last + margin + 1).min(self.flags.len());
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "19ead1731f873705f4e9097621c0d1dba4ba2dea1db84ca0c47a14f1a890d05d"`
[INFO] running `"docker" "rm" "-f" "19ead1731f873705f4e9097621c0d1dba4ba2dea1db84ca0c47a14f1a890d05d"`
[INFO] [stdout] 19ead1731f873705f4e9097621c0d1dba4ba2dea1db84ca0c47a14f1a890d05d