chore(deps): Update Rust Stable to v1.88 (#187)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [STABLE](https://redirect.github.com/rust-lang/rust) | minor | `1.87`
-> `1.88` |

---

### Release Notes

<details>
<summary>rust-lang/rust (STABLE)</summary>

###
[`v1.88`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1880-2025-06-26)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.87.0...1.88.0)

\==========================

<a id="1.88.0-Language"></a>

## Language

- [Stabilize `#![feature(let_chains)]` in the 2024
edition.](https://redirect.github.com/rust-lang/rust/pull/132833)
This feature allows `&&`-chaining `let` statements inside `if` and
`while`, allowing intermixture with boolean expressions. The patterns
inside the `let` sub-expressions can be irrefutable or refutable.
- [Stabilize
`#![feature(naked_functions)]`.](https://redirect.github.com/rust-lang/rust/pull/134213)
Naked functions allow writing functions with no compiler-generated
epilogue and prologue, allowing full control over the generated assembly
for a particular function.
- [Stabilize
`#![feature(cfg_boolean_literals)]`.](https://redirect.github.com/rust-lang/rust/pull/138632)
This allows using boolean literals as `cfg` predicates, e.g.
`#[cfg(true)]` and `#[cfg(false)]`.
- [Fully de-stabilize the `#[bench]`
attribute](https://redirect.github.com/rust-lang/rust/pull/134273).
Usage of `#[bench]` without `#![feature(custom_test_frameworks)]`
already triggered a deny-by-default future-incompatibility lint since
Rust 1.77, but will now become a hard error.
- [Add warn-by-default `dangerous_implicit_autorefs` lint against
implicit autoref of raw pointer
dereference.](https://redirect.github.com/rust-lang/rust/pull/123239)
The lint [will be bumped to
deny-by-default](https://redirect.github.com/rust-lang/rust/pull/141661)
in the next version of Rust.
- [Add `invalid_null_arguments` lint to prevent invalid usage of null
pointers.](https://redirect.github.com/rust-lang/rust/pull/119220)
  This lint is uplifted from `clippy::invalid_null_ptr_usage`.
- [Change trait impl candidate preference for builtin impls and trivial
where-clauses.](https://redirect.github.com/rust-lang/rust/pull/138176)
- [Check types of generic const parameter
defaults](https://redirect.github.com/rust-lang/rust/pull/139646)

<a id="1.88.0-Compiler"></a>

## Compiler

- [Stabilize `-Cdwarf-version` for selecting the version of DWARF debug
information to
generate.](https://redirect.github.com/rust-lang/rust/pull/136926)

<a id="1.88.0-Platform-Support"></a>

## Platform Support

- [Demote `i686-pc-windows-gnu` to Tier
2.](https://blog.rust-lang.org/2025/05/26/demoting-i686-pc-windows-gnu/)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]:
https://doc.rust-lang.org/rustc/platform-support.html

<a id="1.88.0-Libraries"></a>

## Libraries

- [Remove backticks from `#[should_panic]` test failure
message.](https://redirect.github.com/rust-lang/rust/pull/136160)
- [Guarantee that `[T; N]::from_fn` is generated in order of increasing
indices.](https://redirect.github.com/rust-lang/rust/pull/139099), for
those passing it a stateful closure.
- [The libtest flag `--nocapture` is deprecated in favor of the more
consistent `--no-capture`
flag.](https://redirect.github.com/rust-lang/rust/pull/139224)
- [Guarantee that `{float}::NAN` is a quiet
NaN.](https://redirect.github.com/rust-lang/rust/pull/139483)

<a id="1.88.0-Stabilized-APIs"></a>

## Stabilized APIs

-
[`Cell::update`](https://doc.rust-lang.org/stable/std/cell/struct.Cell.html#method.update)
- [`impl Default for *const
T`](https://doc.rust-lang.org/stable/std/primitive.pointer.html#impl-Default-for-*const+T)
- [`impl Default for *mut
T`](https://doc.rust-lang.org/stable/std/primitive.pointer.html#impl-Default-for-*mut+T)
-
[`HashMap::extract_if`](https://doc.rust-lang.org/stable/std/collections/struct.HashMap.html#method.extract_if)
-
[`HashSet::extract_if`](https://doc.rust-lang.org/stable/std/collections/struct.HashSet.html#method.extract_if)
-
[`hint::select_unpredictable`](https://doc.rust-lang.org/stable/std/hint/fn.select_unpredictable.html)
-
[`proc_macro::Span::line`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.line)
-
[`proc_macro::Span::column`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.column)
-
[`proc_macro::Span::start`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.start)
-
[`proc_macro::Span::end`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.end)
-
[`proc_macro::Span::file`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.file)
-
[`proc_macro::Span::local_file`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.local_file)
-
[`<[T]>::as_chunks`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_chunks)
-
[`<[T]>::as_chunks_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_chunks_mut)
-
[`<[T]>::as_chunks_unchecked`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_chunks_unchecked)
-
[`<[T]>::as_chunks_unchecked_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_chunks_unchecked_mut)
-
[`<[T]>::as_rchunks`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_rchunks)
-
[`<[T]>::as_rchunks_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_rchunks_mut)
- [`mod
ffi::c_str`](https://doc.rust-lang.org/stable/std/ffi/c_str/index.html)

These previously stable APIs are now stable in const contexts:

-
[`NonNull<T>::replace`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.replace)
- [`<*mut
T>::replace`](https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.replace)
-
[`std::ptr::swap_nonoverlapping`](https://doc.rust-lang.org/stable/std/ptr/fn.swap_nonoverlapping.html)
-
[`Cell::replace`](https://doc.rust-lang.org/stable/std/cell/struct.Cell.html#method.replace)
-
[`Cell::get`](https://doc.rust-lang.org/stable/std/cell/struct.Cell.html#method.get)
-
[`Cell::get_mut`](https://doc.rust-lang.org/stable/std/cell/struct.Cell.html#method.get_mut)
-
[`Cell::from_mut`](https://doc.rust-lang.org/stable/std/cell/struct.Cell.html#method.from_mut)
-
[`Cell::as_slice_of_cells`](https://doc.rust-lang.org/stable/std/cell/struct.Cell.html#method.as_slice_of_cells)

<a id="1.88.0-Cargo"></a>

## Cargo

- [Stabilize automatic garbage
collection.](https://redirect.github.com/rust-lang/cargo/pull/14287/)
- [use `zlib-rs` for gzip compression in rust
code](https://redirect.github.com/rust-lang/cargo/pull/15417/)

<a id="1.88.0-Rustdoc"></a>

## Rustdoc

- [Doctests can be ignored based on target names using `ignore-*`
attributes.](https://redirect.github.com/rust-lang/rust/pull/137096)
- [Stabilize the `--test-runtool` and `--test-runtool-arg` CLI options
to specify a program (like qemu) and its arguments to run a
doctest.](https://redirect.github.com/rust-lang/rust/pull/137096)

<a id="1.88.0-Compatibility-Notes"></a>

## Compatibility Notes

- [Finish changing the internal representation of pasted
tokens](https://redirect.github.com/rust-lang/rust/pull/124141). Certain
invalid declarative macros that were previously accepted in obscure
circumstances are now correctly rejected by the compiler. Use of a `tt`
fragment specifier can often fix these macros.
- [Fully de-stabilize the `#[bench]`
attribute](https://redirect.github.com/rust-lang/rust/pull/134273).
Usage of `#[bench]` without `#![feature(custom_test_frameworks)]`
already triggered a deny-by-default future-incompatibility lint since
Rust 1.77, but will now become a hard error.
- [Fix borrow checking some always-true
patterns.](https://redirect.github.com/rust-lang/rust/pull/139042)
The borrow checker was overly permissive in some cases, allowing
programs that shouldn't have compiled.
- [Update the minimum external LLVM to
19.](https://redirect.github.com/rust-lang/rust/pull/139275)
- [Make it a hard error to use a vector type with a non-Rust ABI without
enabling the required target
feature.](https://redirect.github.com/rust-lang/rust/pull/139309)

</details>

---

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---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/assert-rs/predicates-rs).

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Ed Page <eopage@gmail.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -104,7 +104,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.87"  # STABLE
+        toolchain: "1.88"  # STABLE
     - uses: Swatinem/rust-cache@v2
     - name: Check documentation
       env:
@@ -119,7 +119,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.87"  # STABLE
+        toolchain: "1.88"  # STABLE
         components: rustfmt
     - uses: Swatinem/rust-cache@v2
     - name: Check formatting
@@ -135,7 +135,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.87"  # STABLE
+        toolchain: "1.88"  # STABLE
         components: clippy
     - uses: Swatinem/rust-cache@v2
     - name: Install SARIF tools

crates/core/src/reflection.rs

@@ -153,7 +153,7 @@ impl<'a> Case<'a> {
 impl fmt::Debug for Case<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let predicate = if let Some(ref predicate) = self.predicate {
-            format!("Some({})", predicate)
+            format!("Some({predicate})")
         } else {
             "None".to_owned()
         };

crates/tree/examples/failures.rs

@@ -7,15 +7,15 @@ fn main() {
     let pred = predicates::ord::eq(expected);
     if let Some(case) = pred.find_case(false, &actual) {
         let tree = case.tree();
-        println!("{}", tree);
+        println!("{tree}");
     }
 
     let expected = [1, 2, 3];
     let actual = 15;
     let pred = predicates::iter::in_iter(IntoIterator::into_iter(expected));
     if let Some(case) = pred.find_case(false, &actual) {
         let tree = case.tree();
-        println!("{}", tree);
+        println!("{tree}");
     }
 
     let expected = "Hello
@@ -29,7 +29,7 @@ Goodbye!";
     let pred = predicates::ord::eq(expected);
     if let Some(case) = pred.find_case(false, &actual) {
         let tree = case.tree();
-        println!("{}", tree);
+        println!("{tree}");
     }
 
     let expected = "Hello
@@ -43,6 +43,6 @@ Goodbye!";
     let pred = predicates::str::diff(expected);
     if let Some(case) = pred.find_case(false, actual) {
         let tree = case.tree();
-        println!("{}", tree);
+        println!("{tree}");
     }
 }

crates/tree/src/lib.rs

@@ -70,8 +70,8 @@ struct Displayable {
 
 impl Displayable {
     fn new(display: &dyn std::fmt::Display) -> Self {
-        let primary = format!("{}", display);
-        let alternate = format!("{:#}", display);
+        let primary = format!("{display}");
+        let alternate = format!("{display:#}");
         Self { primary, alternate }
     }
 }