Always send report End even if run_all_build_scripts panic

[chenyukang]

I find the message Building compile-time-deps always keep on the status bar, its animation effect disturbing for me:

I spent some time to debug the code, find out run_all_build_scripts panic here:

rust-analyzer/crates/project-model/src/build_dependencies.rs

Line 145 in b93180b

never!("Received compiler message for unknown package: {}", package);

the error message for panic is: Received compiler message for unknown package: registry+https://github.com/rust-lang/crates.io-index#[email protected]

I haven't found out why this panic happened. (if you want to reproduce it clone the rust compiler code, use the default vscode setting with x setup editor and choose rust-analyzer, then start the whole rust compiler project)

Anyway, this PR will handle the panic and send a report End, and it can resolve the issue.

[ChayimFriedman2]

The never macro can panic, but only on debug builds or if you set the force-always-assert feature (I think the xtask task sets it though).

[ChayimFriedman2]

I don't think we should catch_unwind() here. We should definitely check why the never! is failing though.

[chenyukang]

ah, you are right, I haven't checked the never!, I will debug more on the failure if I have time.