rust-analyzer version: (eg. output of "rust-analyzer: Show RA Version" command, accessible in VSCode via Ctrl/⌘+Shift+P)
rust-analyzer version: 0.3.2466-standalone (e464ff8 2025-05-18) [c:\Users\jbills.vscode\extensions\rust-lang.rust-analyzer-0.3.2466-win32-x64\server\rust-analyzer.exe]

rustc version: (eg. output of rustc -V)
rustc 1.87.0 (17067e9ac 2025-05-09)

editor or extension: (eg. VSCode, Vim, Emacs, etc. For VSCode users, specify your extension version; for users of other editors, provide the distribution if applicable)
VSCode 0.3.2466

relevant settings: (eg. client settings, or environment variables like CARGO, RUSTC, RUSTUP_HOME or CARGO_HOME)

repository link (if public, optional): (eg. rust-analyzer)

code snippet to reproduce:
Found this because of this: rust-lang/rust#141365

// add your code here
use pubgrub::{OfflineDependencyProvider, PubGrubError, Range};

fn f() -> PubGrubError<OfflineDependencyProvider<String, Range<u32>>> {
    todo!();
}

fn main() {
    let pubgrub::PubGrubError::NoSolution(der) = f();
}

with

pubgrub = { git = "https://github.com/pubgrub-rs/pubgrub.git" }

gives

non-exhaustive pattern: `ErrorRetrievingDependencies { source: !, .. }`, `ErrorChoosingVersion { source: !, .. }` and `ErrorInShouldCancel(!)` not covered

while rustc does nothing. In fact, rustc gives a warning if you try to use refutable pattern matching, making this even more irritating.