[INFO] updating cached repository https://github.com/voetsjoeba/nonogram-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d7a7ca7d782b574c3eb176e50b74427f6b7e01a
[INFO] checking voetsjoeba/nonogram-rs against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoetsjoeba%2Fnonogram-rs" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/voetsjoeba/nonogram-rs on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/voetsjoeba/nonogram-rs
[INFO] finished tweaking git repo https://github.com/voetsjoeba/nonogram-rs
[INFO] tweaked toml for git repo https://github.com/voetsjoeba/nonogram-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/voetsjoeba/nonogram-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8febd0c2ea54b181edc16fa2e6c05eae28683cf3e917c207297d0da1cc09bb85
[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" "8febd0c2ea54b181edc16fa2e6c05eae28683cf3e917c207297d0da1cc09bb85"`
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking piston-graphics_api_version v0.2.0
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking shader_version v0.6.0
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking piston2d-graphics v0.35.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.70.0
[INFO] [stderr]     Checking pistoncore-input v0.28.0
[INFO] [stderr]     Checking pistoncore-window v0.44.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.49.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.63.0
[INFO] [stderr]     Checking piston v0.49.0
[INFO] [stderr]     Checking nonogram v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/ui.rs:42:33
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Ok((d,i,changes)) => { }
[INFO] [stderr]    |                           ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/ui.rs:42:35
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Ok((d,i,changes)) => { }
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `changes`
[INFO] [stderr]   --> src/ui.rs:42:37
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Ok((d,i,changes)) => { }
[INFO] [stderr]    |                               ^^^^^^^ help: consider prefixing with an underscore: `_changes`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |     let mut puzzle = Puzzle::from_yaml(doc);
[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: `d`
[INFO] [stderr]   --> src/ui.rs:42:33
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Ok((d,i,changes)) => { }
[INFO] [stderr]    |                           ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/ui.rs:42:35
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Ok((d,i,changes)) => { }
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `changes`
[INFO] [stderr]   --> src/ui.rs:42:37
[INFO] [stderr]    |
[INFO] [stderr] 42 | ...                   Ok((d,i,changes)) => { }
[INFO] [stderr]    |                               ^^^^^^^ help: consider prefixing with an underscore: `_changes`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |     let mut puzzle = Puzzle::from_yaml(doc);
[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 46.50s
[INFO] running `"docker" "inspect" "8febd0c2ea54b181edc16fa2e6c05eae28683cf3e917c207297d0da1cc09bb85"`
[INFO] running `"docker" "rm" "-f" "8febd0c2ea54b181edc16fa2e6c05eae28683cf3e917c207297d0da1cc09bb85"`
[INFO] [stdout] 8febd0c2ea54b181edc16fa2e6c05eae28683cf3e917c207297d0da1cc09bb85