Clippy incorrectly binds block expression in if, in if

Summary

The error in question:

after fixes were automatically applied the compiler reported errors within these files:

  * crates/storage/src/storage.rs

This likely indicates a bug in either rustc or cargo itself,
and we would appreciate a bug report! You're likely to see 
a number of compiler warnings after this message which cargo
attempted to fix but failed. If you could open an issue at
https://github.com/rust-lang/rust-clippy/issues
quoting the full output of this command we'd be very appreciative!
Note that you may be able to make some more progress in the near-term
fixing code with the `--broken-code` flag

The following errors were reported:
error: expected expression, found `let` statement
  --> crates/storage/src/storage.rs:60:26
   |
60 |         let mut bucket = let res = {
   |                          ^^^
   |
   = note: only supported directly in conditions of `if` and `while` expressions

error: aborting due to previous error

Original diagnostics will follow.

The likely relevant lint:

warning: in an `if` condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a `let`
  --> crates/storage/src/storage.rs:60:26
   |
60 |           let mut bucket = if {
   |  __________________________^
61 | |             let resp = bucket
62 | |                 .put_object("check_if_bucket_exists.txt", b"it does")
63 | |                 .await?;
64 | |             resp.status_code() == 200
65 | |         } {
   | |_________^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blocks_in_if_conditions
   = note: `#[warn(clippy::blocks_in_if_conditions)]` on by default
help: try
   |
60 ~         let mut bucket = let res = {
61 +             let resp = bucket
62 +                 .put_object("check_if_bucket_exists.txt", b"it does")
63 +                 .await?;
64 +             resp.status_code() == 200
65 ~         }; if res {
   |

The actual block of code:

let mut bucket = if {
    let resp = bucket
        .put_object("check_if_bucket_exists.txt", b"it does")
        .await?;
    resp.status_code() == 200
} {
    bucket
} else {
    Self::init(connect).await?
};

Version

rustc 1.75.0 (82e1608df 2023-12-21)
binary: rustc
commit-hash: 82e1608dfa6e0b5569232559e3d385fea5a93112
commit-date: 2023-12-21
host: aarch64-apple-darwin
release: 1.75.0
LLVM version: 17.0.6

Start by reproducing the blocks_in_if_conditions lint on the Rust code shown in crates/storage/src/storage.rs, using the reported rustc 1.75.0 context. Trace the lint's suggestion generation and verify that applying the suggestion no longer produces invalid let syntax while preserving the original conditional behavior.