The test confirms that when val < base, we do not divide or multiply.

     Locking 15 packages to latest compatible versions
    Updating cc v1.0.97 -> v1.0.98
    Updating crc32fast v1.4.0 -> v1.4.2
    Updating crossbeam-channel v0.5.12 -> v0.5.13
    Updating crossbeam-utils v0.8.19 -> v0.8.20
    Updating getrandom v0.2.14 -> v0.2.15
    Updating libz-sys v1.1.16 -> v1.1.18
    Updating nu-ansi-term v0.49.0 -> v0.50.0
    Updating parking_lot v0.12.2 -> v0.12.3
    Updating proc-macro2 v1.0.82 -> v1.0.84
    Updating r-efi v4.4.0 -> v4.5.0
    Updating serde v1.0.202 -> v1.0.203
    Updating serde_derive v1.0.202 -> v1.0.203
    Updating spanned v0.2.0 -> v0.2.1
    Updating syn v2.0.64 -> v2.0.66
    Updating tracing-tree v0.3.0 -> v0.3.1
note: pass `--verbose` to see 80 unchanged dependencies behind latest

As of rust-lang#125408 PR,
rustbook now relies on dependencies from the "src/doc/book" submodule.

However, bootstrap does not automatically sync this submodule before reading
metadata informations. And if the submodule is not present, reading
metadata will fail because rustbook's dependencies will be missing.

This change makes "src/doc/book" to be fetched/synced automatically
before trying to read metadata.

Signed-off-by: onur-ozkan <work@onurozkan.dev>

Unroll first iteration of checked_ilog loop

This follows the optimization of rust-lang#115913. As shown in rust-lang#115913 (comment), the performance was improved in all important cases, but some regressions were introduced for the benchmarks `u32_log_random_small`, `u8_log_random` and `u8_log_random_small`.

Basically, rust-lang#115913 changed the implementation from one division per iteration to one multiplication per iteration plus one division. When there are zero iterations, this is a regression from zero divisions to one division.

This PR avoids this by avoiding the division if we need zero iterations by returning `Some(0)` early. It also reduces the number of multiplications by one in all other cases.

…ulacrum

Weekly `cargo update`

Automation to keep dependencies in `Cargo.lock` current.

The following is the output from `cargo update`:

```txt
     Locking 15 packages to latest compatible versions
    Updating cc v1.0.97 -> v1.0.98
    Updating crc32fast v1.4.0 -> v1.4.2
    Updating crossbeam-channel v0.5.12 -> v0.5.13
    Updating crossbeam-utils v0.8.19 -> v0.8.20
    Updating getrandom v0.2.14 -> v0.2.15
    Updating libz-sys v1.1.16 -> v1.1.18
    Updating nu-ansi-term v0.49.0 -> v0.50.0
    Updating parking_lot v0.12.2 -> v0.12.3
    Updating proc-macro2 v1.0.82 -> v1.0.84
    Updating r-efi v4.4.0 -> v4.5.0
    Updating serde v1.0.202 -> v1.0.203
    Updating serde_derive v1.0.202 -> v1.0.203
    Updating spanned v0.2.0 -> v0.2.1
    Updating syn v2.0.64 -> v2.0.66
    Updating tracing-tree v0.3.0 -> v0.3.1
note: pass `--verbose` to see 80 unchanged dependencies behind latest
```

…s, r=lcnr

Uplift `{Closure,Coroutine,CoroutineClosure}Args` and friends to `rustc_type_ir`

Part of converting the new solver's `structural_traits.rs` to be interner-agnostic.

I decided against aliasing `ClosureArgs<TyCtxt<'tcx>>` to `ClosureArgs<'tcx>` because it seemed so rare. I could do so if desired, though.

r? lcnr

…t, r=jieyouxu

Refactor `--print=check-cfg` test

*as asked in rust-lang#125818 (comment)

r? `````@jieyouxu`````

…fix, r=onur-ozkan

include missing submodule on bootstrap

As of rust-lang#125408 PR, rustbook now relies on dependencies from the "src/doc/book" submodule.

However, bootstrap does not automatically sync this submodule before reading metadata informations. And if the submodule is not present, reading metadata will fail because rustbook's dependencies will be missing.

This change makes "src/doc/book" to be fetched/synced automatically before trying to read metadata.

cc ``@Zalathar``