chore: update to Rust 1.76

[linbingquan]

Update to Rust 1.76

If this PR has any problem, please tell me.

[mmastrac]

I think this is actually invalid code.

Does this compile?

unsafe fn get_backing_store_slice(
  backing_store: &mut v8::SharedRef<v8::BackingStore>,
  byte_offset: usize,
  byte_length: usize,
) -> &mut [u8] {
  let cells: *mut [Cell<u8>] =
    &mut backing_store[byte_offset..byte_offset + byte_length];
  let mut bytes = cells as *mut [u8];
  &mut *bytes
}

[linbingquan]

Thank you for your reply.

Does this compile?

I think it was compile, maybe I miss something.

I think this is actually invalid code.

I try to remove #[allow(invalid_reference_casting)] code, I got this warning

warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
  --> cli\napi\util.rs:14:3
   |
13 |   let mut bytes = cells as *mut [u8];
   |                   ------------------ casting happend here
14 |   &mut *bytes
   |   ^^^^^^^^^^^
   |
   = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
   = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get`
   = note: `#[warn(invalid_reference_casting)]` on by default

warning: `deno` (bin "deno") generated 1 warning
warning: `deno` (bin "deno" test) generated 1 warning (1 duplicate)

[mmastrac]

Could you try replacing this code with the code I put above and see if that fixes the warning?

[linbingquan]

Could you try replacing this code with the code I put above and see if that fixes the warning?

I got this error

error[E0596]: cannot borrow data in dereference of `deno_core::v8::BackingStore` as mutable
  --> cli\napi\util.rs:12:10
   |
12 |     &mut backing_store[byte_offset..byte_offset + byte_length];
   |          ^^^^^^^^^^^^^ cannot borrow as mutable
   |
   = help: trait `DerefMut` is required to modify through a dereference, but it is not implemented for `deno_core::v8::BackingStore`

For more information about this error, try `rustc --explain E0596`.
error: could not compile `deno` (bin "deno") due to 1 previous error
warning: build failed, waiting for other jobs to finish...
error: could not compile `deno` (bin "deno" test) due to 1 previous error

[mmastrac]

I'll push a change to this PR to fix it. I think I know what to do here.

[mmastrac]

LGTM