Fix future Rust warnings (#81217)
I tried to upgrade to nightly-2025-07-02, but rust-analyzer is just completely broken:
So I reverted that again but here are all fixes to the new compiler warnings:
```
warning: lifetime flowing from input to output with different syntax can be confusing
--> turbopack/crates/turbo-tasks/src/read_ref.rs:89:27
|
89 | fn value_debug_format(&self, depth: usize) -> ValueDebugFormatString {
| ^^^^^ ---------------------- the lifetime gets resolved as `'_`
| |
| this lifetime flows to the output
|
= note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
|
89 | fn value_debug_format(&self, depth: usize) -> ValueDebugFormatString<'_> {
| ++++
```
