Clippy stops working after printing its version

Summary

I realized that if I run cargo clippy with -- -Vv flag, clippy completely stops working until I either change my source code, or cargo clean.

Reproducer

I tried this code:

/// main.rs

fn main() {
    let t = 10;
}

Then I ran cargo clippy and got a warning:

warning: unused variable: `t`
 --> src/main.rs:2:6
  |
2 |     let t = 10;
  |         ^ help: if this is intentional, prefix it with an underscore: `_t`
  |
  = note: `#[warn(unused_variables)]` on by default

Then I ran cargo clippy -- -Vv:

rustc 1.62.0 (a8314ef7d 2022-06-27)
binary: rustc
commit-hash: a8314ef7d0ec7b75c336af2c9857bfaf43002bfc
commit-date: 2022-06-27
host: x86_64-unknown-linux-gnu
release: 1.62.0
LLVM version: 14.0.5
    Finished dev [unoptimized + debuginfo] target(s) in 0.01s

And when I ran cargo clippy again, it no longer emits that warning:

$ cargo clippy
    Finished dev [unoptimized + debuginfo] target(s) in 0.00s

I expected the last cargo clippy to have the same warning as before (unused variable).

If I modify src/main.rs or do a cargo clean, clippy starts working normal again.

Version

rustc 1.62.0 (a8314ef7d 2022-06-27)
binary: rustc
commit-hash: a8314ef7d0ec7b75c336af2c9857bfaf43002bfc
commit-date: 2022-06-27
host: x86_64-unknown-linux-gnu
release: 1.62.0
LLVM version: 14.0.5

Additional Labels

No response

Reproduce the sequence with the shown src/main.rs: run cargo clippy, cargo clippy -- -Vv, and cargo clippy again, then compare the output. Inspect Clippy's build and caching behavior around the version request; done means the final cargo clippy still reports the unused-variable warning without changing the source or running cargo clean.