[INFO] updating cached repository https://github.com/gubbu/piston_gui_only_keyboard_tes2
[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] c884b500ccf052b555dac332e75824893cc80778
[INFO] checking gubbu/piston_gui_only_keyboard_tes2 against try#a243773eaf3fedcd203f10ae4579e4f106bf7ccd for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgubbu%2Fpiston_gui_only_keyboard_tes2" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gubbu/piston_gui_only_keyboard_tes2 on toolchain a243773eaf3fedcd203f10ae4579e4f106bf7ccd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gubbu/piston_gui_only_keyboard_tes2
[INFO] finished tweaking git repo https://github.com/gubbu/piston_gui_only_keyboard_tes2
[INFO] tweaked toml for git repo https://github.com/gubbu/piston_gui_only_keyboard_tes2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/gubbu/piston_gui_only_keyboard_tes2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24593b4f146d324144e0cd2e47335f9cd8f833ca09d6073586b82a2440c96eb4
[INFO] running `"docker" "start" "-a" "24593b4f146d324144e0cd2e47335f9cd8f833ca09d6073586b82a2440c96eb4"`
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking piston2d-graphics v0.35.0
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking piston-gfx_texture v0.40.0
[INFO] [stderr]     Checking glutin v0.21.1
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.66.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.63.0
[INFO] [stderr]     Checking piston_window v0.105.0
[INFO] [stderr]     Checking piston_gui_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `i_length`
[INFO] [stderr]    --> src/basic_keyboard_ui.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let i_length = self.options.len() as i64;
[INFO] [stderr]     |             ^^^^^^^^ help: consider prefixing with an underscore: `_i_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `render`
[INFO] [stderr]   --> src/basic_keyboard_ui.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | /     pub fn render(
[INFO] [stderr] 41 | |         &self,
[INFO] [stderr] 42 | |         x: f64,
[INFO] [stderr] 43 | |         mut y: f64,
[INFO] [stderr] ...  |
[INFO] [stderr] 90 | |         piston_window::line(line_color, gap * 0.1, [x, old_y, x, y], transform, graphics);
[INFO] [stderr] 91 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i_length`
[INFO] [stderr]    --> src/basic_keyboard_ui.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let i_length = self.options.len() as i64;
[INFO] [stderr]     |             ^^^^^^^^ help: consider prefixing with an underscore: `_i_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `render`
[INFO] [stderr]   --> src/basic_keyboard_ui.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | /     pub fn render(
[INFO] [stderr] 41 | |         &self,
[INFO] [stderr] 42 | |         x: f64,
[INFO] [stderr] 43 | |         mut y: f64,
[INFO] [stderr] ...  |
[INFO] [stderr] 90 | |         piston_window::line(line_color, gap * 0.1, [x, old_y, x, y], transform, graphics);
[INFO] [stderr] 91 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.60s
[INFO] running `"docker" "inspect" "24593b4f146d324144e0cd2e47335f9cd8f833ca09d6073586b82a2440c96eb4"`
[INFO] running `"docker" "rm" "-f" "24593b4f146d324144e0cd2e47335f9cd8f833ca09d6073586b82a2440c96eb4"`
[INFO] [stdout] 24593b4f146d324144e0cd2e47335f9cd8f833ca09d6073586b82a2440c96eb4