[INFO] cloning repository https://github.com/default-username-852/schack
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/default-username-852/schack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefault-username-852%2Fschack"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefault-username-852%2Fschack'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 35689cb2fc3be1519ba1b57010483362ca8b9f4d
[INFO] checking default-username-852/schack against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefault-username-852%2Fschack" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/default-username-852/schack on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/default-username-852/schack
[INFO] finished tweaking git repo https://github.com/default-username-852/schack
[INFO] tweaked toml for git repo https://github.com/default-username-852/schack written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/default-username-852/schack already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 33efd2570346de274e9b6000c0266cbee95662408c50b12c37ba3d05969ff583
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "33efd2570346de274e9b6000c0266cbee95662408c50b12c37ba3d05969ff583"`
[INFO] [stderr]     Checking schackmotor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:455:9
[INFO] [stderr]     |
[INFO] [stderr] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:455:9
[INFO] [stderr]     |
[INFO] [stderr] 455 |         (1 <= self.y && self.y <= 8 && 1 <= self.x && self.x <= 8)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `piece`
[INFO] [stderr]     --> src/lib.rs:1097:18
[INFO] [stderr]      |
[INFO] [stderr] 1097 |             Some(piece) => { piece_color = self.get_piece_at(piece_position).unwrap().color.clone(); }
[INFO] [stderr]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `piece`
[INFO] [stderr]     --> src/lib.rs:1097:18
[INFO] [stderr]      |
[INFO] [stderr] 1097 |             Some(piece) => { piece_color = self.get_piece_at(piece_position).unwrap().color.clone(); }
[INFO] [stderr]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "33efd2570346de274e9b6000c0266cbee95662408c50b12c37ba3d05969ff583"`
[INFO] running `"docker" "rm" "-f" "33efd2570346de274e9b6000c0266cbee95662408c50b12c37ba3d05969ff583"`
[INFO] [stdout] 33efd2570346de274e9b6000c0266cbee95662408c50b12c37ba3d05969ff583