[INFO] cloning repository https://github.com/VincentDevi/learning-ratatui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VincentDevi/learning-ratatui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVincentDevi%2Flearning-ratatui", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e469a67387dcfe52edadde9c8f283d7d90001810
[INFO] checking VincentDevi/learning-ratatui against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVincentDevi%2Flearning-ratatui" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/VincentDevi/learning-ratatui
[INFO] finished tweaking git repo https://github.com/VincentDevi/learning-ratatui
[INFO] tweaked toml for git repo https://github.com/VincentDevi/learning-ratatui written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/VincentDevi/learning-ratatui on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/VincentDevi/learning-ratatui already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "15173dd0f05c4d183e0f79d76f47e98d577dc4c945bbd8d6795c2415da785477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15173dd0f05c4d183e0f79d76f47e98d577dc4c945bbd8d6795c2415da785477", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "a936c71120ff57daa7c034d669baff4b26565c13860e3afaa52a65d3a9b83c40", kill_on_drop: false }`
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[INFO] [stdout] warning: variable `c` is assigned to, but never used
[INFO] [stdout]   --> examples/01.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut c = 0;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_c` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> examples/01.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         c += 1;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `handle` is never used
[INFO] [stdout]   --> examples/01.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Actionlist {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 74 |     pub fn handle(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> examples/03.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let res = app.run_app(&mut terminal);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw` is never used
[INFO] [stdout]    --> examples/03.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout]  92 | impl App {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn draw(&self, frame: &mut Frame) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/03.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     enable_raw_mode();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let _ = enable_raw_mode();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/03.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     execute!(stderr, EnterAlternateScreen, EnableMouseCapture);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let _ = execute!(stderr, EnterAlternateScreen, EnableMouseCapture);;
[INFO] [stdout]    |     +++++++                                                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/03.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     execute!(
[INFO] [stdout] 36 | |         terminal.backend_mut(),
[INFO] [stdout] 37 | |         LeaveAlternateScreen,
[INFO] [stdout] 38 | |         DisableMouseCapture
[INFO] [stdout] 39 | |     );
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 ~     let _ = execute!(
[INFO] [stdout] 36 |         terminal.backend_mut(),
[INFO] [stdout] 37 |         LeaveAlternateScreen,
[INFO] [stdout] 38 |         DisableMouseCapture
[INFO] [stdout] 39 ~     );;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/03.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             self.handle_events();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let _ = self.handle_events();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.30s
[INFO] running `Command { std: "docker" "inspect" "a936c71120ff57daa7c034d669baff4b26565c13860e3afaa52a65d3a9b83c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a936c71120ff57daa7c034d669baff4b26565c13860e3afaa52a65d3a9b83c40", kill_on_drop: false }`
[INFO] [stdout] a936c71120ff57daa7c034d669baff4b26565c13860e3afaa52a65d3a9b83c40
