Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+# mach2
+
+[![Latest Version]][crates.io] [![docs]][docs.rs]
+
+A Rust interface to the **user-space** API of the Mach 3.0 kernel exposed in
+`/usr/include/mach` that underlies macOS and is linked via `libSystem` (and
+`libsystem_kernel`).
+
+This library does not expose the **kernel-space** API of the Mach 3.0 kernel
+exposed in
+`SDK/System/Library/Frameworks/Kernel.framework/Versions/A/Headers/mach`. 
+
+That is, if you are writing a kernel-resident device drivers or some other
+kernel extensions you have to use something else. The user-space kernel API is
+often API-incompatible with the kernel space one, and even in the cases where
+they match, they are sometimes ABI incompatible such that using this library
+would have **undefined behavior**.
+
+## Usage
+
+Add the following to your `Cargo.toml` to conditionally include mach on those
+platforms that support it.
+
+```toml
+[target.'cfg(any(target_os = "macos", target_os = "ios"))'.dependencies.mach]
+version = "0.4"
+```
+
+Available crate feature:
+
+* **unstable** (disabled by default): Exposes newly changed APIs. Enabling this may
+  bring breaking changes (see the breaking change policy).
+
+
+### Breaking change policy
+
+We do the following steps when an item is changed/removed on latest toolchain:
+
+1. Deprecate an existing one
+2. Declare a new one under the `unstable` feature
+3. After a month or more since releasing a new version that contains that change,
+  remove/change an older one
+
+For instance, if const `FOO` value is changed from `3` to `4`,
+we expose the newer one, i.e. `4`, under `unstable` first.
+So the `unstable` users should notice the change on the first release since deprecating.
+After a month or more, all the users should notice it.
+
+## Platform support
+
+The following table describes the current CI set-up:
+
+| Target                  | Min. Rust | XCode           | build | ctest | run |
+|-------------------------|-----------|-----------------|-------|-------|-----|
+| `x86_64-apple-darwin`   | 1.33.0    | 10.3.0 - 13.1.0 | ✓     | ✓     | ✓   |
+| `aarch64-apple-darwin`  | nightly   | 13.1.0          | ✓     | -     | -   |
+| `aarch64-apple-ios`     | nightly   | 13.1.0          | ✓     | -     | -   |
+| `aarch64-apple-ios-sim` | nightly   | 13.1.0          | ✓     | -     | -   |
+| `x86_64-apple-ios`      | nightly   | 13.1.0          | ✓     | -     | -   |
+
+## License
+
+This project is licensed under either of
+
+* A 2-clause BSD License ([LICENSE-BSD](LICENSE-BSD)), or
+* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
+  http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license ([LICENSE-MIT](LICENSE-MIT) or
+  http://opensource.org/licenses/MIT)
+
+at your option.
+
+## Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in `mach` by you, as defined in the Apache-2.0 license, shall be
+triple licensed as above, without any additional terms or conditions.
+
+To locally test the library, run:
+
+```
+TARGET=x86_64-apple-darwin RUST_VERSION=nightly ./ci/run.sh
+```
+
+where you can replace the `TARGET` and `RUST_VERSION` with the target you
+want to test (e.g. `aarch64-apple-darwin`) and the Rust version you want to use for
+the tests (e.g. `stable`, `1.33.0`, etc.).
+
+[crates.io]: https://crates.io/crates/mach2
+[Latest Version]: https://img.shields.io/crates/v/mach2.svg
+[docs]: https://docs.rs/mach2/badge.svg
+[docs.rs]: https://docs.rs/mach2