[INFO] fetching crate ferrous-focus 0.4.1...
[INFO] testing ferrous-focus-0.4.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate ferrous-focus 0.4.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ferrous-focus 0.4.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ferrous-focus 0.4.1
[INFO] tweaked toml for crates.io crate ferrous-focus 0.4.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ferrous-focus 0.4.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ferrous-focus 0.4.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c8c58e9870303e29cf548119a1d908f2d6d7555e1d6d42b5e3778eb5eeef1ad0
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.58s
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[INFO] [stdout] 520c9371de6634c4e90a1e3c870badb697e8ae3b99eb03872e2f90bb13acbc05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5c99c05d3ce482d970b1c1fc9a2dfd6dffcdd2b1548a6ac79bca1945115427a
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[INFO] [stderr]    Compiling ferrous-focus v0.4.1 (/opt/rustwide/workdir)
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[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]  --> examples/async_thread_safe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::sync::Mutex;
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `tokio`, use `cargo add tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]  --> examples/async_thread_safe.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[tokio::main]
[INFO] [stdout]   |   ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]   --> examples/async_thread_safe.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     tokio::time::sleep(std::time::Duration::from_secs(10)).await;
[INFO] [stdout]    |     ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `tokio`, use `cargo add tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]   --> examples/async_thread_safe.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let handle = tokio::spawn(async move {
[INFO] [stdout]    |                  ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `tokio`, use `cargo add tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `track_focus_async` found for struct `FocusTracker` in the current scope
[INFO] [stdout]   --> examples/async_thread_safe.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         tracker
[INFO] [stdout] 33 | |             .track_focus_async(move |window| {
[INFO] [stdout]    | |_____________-^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `track_focus` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 33 -             .track_focus_async(move |window| {
[INFO] [stdout] 33 +             .track_focus(move |window| {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Arc<_, _>`
[INFO] [stdout]   --> examples/async_thread_safe.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let focus_count_clone = Arc::clone(&focus_count);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |                     let mut count = focus_count.lock().await;
[INFO] [stdout]    |                                     ----------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `focus_count_clone` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let focus_count_clone: Arc<T, A> = Arc::clone(&focus_count);
[INFO] [stdout]    |                          +++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/async_thread_safe.rs:50:49
[INFO] [stdout]    |
[INFO] [stdout] 50 |                         println!("Icon: {}x{}", icon.width(), icon.height());
[INFO] [stdout]    |                                                 ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/async_thread_safe.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | async fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433, E0599, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferrous-focus` (example "async_thread_safe") due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a5c99c05d3ce482d970b1c1fc9a2dfd6dffcdd2b1548a6ac79bca1945115427a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5c99c05d3ce482d970b1c1fc9a2dfd6dffcdd2b1548a6ac79bca1945115427a", kill_on_drop: false }`
[INFO] [stdout] a5c99c05d3ce482d970b1c1fc9a2dfd6dffcdd2b1548a6ac79bca1945115427a
