[INFO] updating cached repository Inityx/tetroids
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Inityx/tetroids
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Inityx/tetroids" "work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/Inityx/tetroids"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/Inityx/tetroids'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Inityx/tetroids" "work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/Inityx/tetroids"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/Inityx/tetroids'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 13a81c31fdbeec94d2adf43f08f6970982cf2dbe
[INFO] sha for GitHub repo Inityx/tetroids: 13a81c31fdbeec94d2adf43f08f6970982cf2dbe
[INFO] validating manifest of Inityx/tetroids on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Inityx/tetroids on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Inityx/tetroids
[INFO] finished frobbing Inityx/tetroids
[INFO] frobbed toml for Inityx/tetroids written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/Inityx/tetroids/Cargo.toml
[INFO] started frobbing Inityx/tetroids
[INFO] finished frobbing Inityx/tetroids
[INFO] frobbed toml for Inityx/tetroids written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/Inityx/tetroids/Cargo.toml
[INFO] crate Inityx/tetroids has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Inityx/tetroids against try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-7/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/Inityx/tetroids:/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" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4464ffc7af515902540f3d52c500ba288d4f24c04bde43d0a688723c75dec779
[INFO] running `"docker" "start" "-a" "4464ffc7af515902540f3d52c500ba288d4f24c04bde43d0a688723c75dec779"`
[INFO] [stderr]    Compiling x11 v2.14.0
[INFO] [stderr]     Checking tetroids v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/gui/mod.rs:175:21
[INFO] [stderr]     |
[INFO] [stderr] 175 |                 let result = match key {
[INFO] [stderr]     |                     ^^^^^^ help: consider using `_result` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `square`
[INFO] [stderr]    --> src/gui/mod.rs:283:25
[INFO] [stderr]     |
[INFO] [stderr] 283 |             if let Some(square) = square {
[INFO] [stderr]     |                         ^^^^^^ help: consider using `_square` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game/board.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut board = &mut self.data;
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/gui/mod.rs:175:21
[INFO] [stderr]     |
[INFO] [stderr] 175 |                 let result = match key {
[INFO] [stderr]     |                     ^^^^^^ help: consider using `_result` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `square`
[INFO] [stderr]    --> src/gui/mod.rs:283:25
[INFO] [stderr]     |
[INFO] [stderr] 283 |             if let Some(square) = square {
[INFO] [stderr]     |                         ^^^^^^ help: consider using `_square` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game/board.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut board = &mut self.data;
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.51s
[INFO] running `"docker" "inspect" "4464ffc7af515902540f3d52c500ba288d4f24c04bde43d0a688723c75dec779"`
[INFO] running `"docker" "rm" "-f" "4464ffc7af515902540f3d52c500ba288d4f24c04bde43d0a688723c75dec779"`
[INFO] [stdout] 4464ffc7af515902540f3d52c500ba288d4f24c04bde43d0a688723c75dec779