Bump MSRV to 1.70

This commit bumps the MSRV for rustworkx in 0.15.0 to 1.70.0. This
enables us to use GATs (see Qiskit#1143) and also enables to update some of
our dependencies which require newer versions of rust to compile.

.github/workflows/main.yml

@@ -66,7 +66,7 @@ jobs:
         ]
         include:
           # Test minimal supported Rust version
-          - rust: 1.64
+          - rust: 1.70
             python-version: 3.8
             platform: { os: "ubuntu-latest", python-architecture: "x64", rust-target: "x86_64-unknown-linux-gnu" }
             msrv: "MSRV"

Cargo.toml

@@ -18,7 +18,7 @@ members = [
 [workspace.package]
 version = "0.15.0"
 edition = "2021"
-rust-version = "1.64"
+rust-version = "1.70"
 authors = ["Matthew Treinish <[email protected]>"]
 repository = "https://github.com/Qiskit/rustworkx"
 license = "Apache-2.0"
@@ -34,7 +34,6 @@ petgraph = "0.6.4"
 rand = "0.8"
 rand_pcg = "0.3"
 rayon = "1.10"
-rayon-cond = "1.7"
 
 [lib]
 name = "rustworkx"

README.md

@@ -6,7 +6,7 @@
 [![](https://img.shields.io/github/release/Qiskit/rustworkx.svg?style=popout-square)](https://github.com/Qiskit/rustworkx/releases)
 [![](https://img.shields.io/pypi/dm/rustworkx.svg?style=popout-square)](https://pypi.org/project/rustworkx/)
 [![Coverage Status](https://coveralls.io/repos/github/Qiskit/rustworkx/badge.svg?branch=main)](https://coveralls.io/github/Qiskit/rustworkx?branch=main)
-[![Minimum rustc 1.64](https://img.shields.io/badge/rustc-1.64+-blue.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
+[![Minimum rustc 1.70](https://img.shields.io/badge/rustc-1.70+-blue.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
 [![DOI](https://joss.theoj.org/papers/10.21105/joss.03968/status.svg)](https://doi.org/10.21105/joss.03968)
 [![arXiv](https://img.shields.io/badge/arXiv-2110.15221-b31b1b.svg)](https://arxiv.org/abs/2110.15221)
 [![Zenodo](https://img.shields.io/badge/Zenodo-10.5281%2Fzenodo.5879859-blue)](https://doi.org/10.5281/zenodo.5879859)
@@ -59,7 +59,7 @@ environment.
 
 If there are no precompiled binaries published for your system you'll have to
 build the package from source. However, to be able able to build the package
-from the published source package you need to have Rust >= 1.64 installed (and
+from the published source package you need to have Rust >= 1.70 installed (and
 also [cargo](https://doc.rust-lang.org/cargo/) which is normally included with
 rust) You can use [rustup](https://rustup.rs/) (a cross platform installer for
 rust) to make this simpler, or rely on

releasenotes/notes/bump-msrv-170-f1518d5adb41f7c3.yaml

@@ -0,0 +1,8 @@
+---
+upgrade:
+  - |
+    The minimum supported rust version to build rustworkx and rustworkx-core
+    has been raised from 1.64 to 1.70. You will need to upgrade your rust
+    compiler version to at least version 1.70 to continue building from source.
+    Python library users who are installing rustworkx on a supported platform
+    will not need to make any changes.

rustworkx-core/README.md

@@ -1,7 +1,7 @@
 # rustworkx-core
 
 [![License](https://img.shields.io/github/license/Qiskit/rustworkx.svg?style=popout-square)](https://opensource.org/licenses/Apache-2.0)
-[![Minimum rustc 1.41.1](https://img.shields.io/badge/rustc-1.41.1+-blue.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
+[![Minimum rustc 1.70](https://img.shields.io/badge/rustc-1.70+-blue.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
 
 > :warning: The retworkx-core project has been renamed to **rustworkx-core**.
 > If you're using retworkx-core 0.11.0 you will need to change your requirement