Bump MSRV to 1.68

syn 2.0.107 raised its MSRV to 1.68, which caused our MSRV CI to break.
We depend on syn in the cairo-example, xtrace-example and some dev
dependencies (via criterion). Nothing of this is important for x11rb, so
normally I would just pin the previous syn version in MSRV CI. However,
we also have syn 1 in the dependency tree of cairo-example, so "the
usual approach" does not work cleanly.

Instead, let's follow this MSRV bump and bump our own MSRV.

This commit is just a search-and-replace operation. Cleanups will come
in later commits.

Signed-off-by: Uli Schlachter <psychon@znc.in>

Author: psychon

.github/workflows/CI.yml

@@ -173,19 +173,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: dtolnay/rust-toolchain@1.64.0
+    - uses: dtolnay/rust-toolchain@1.68.0
 
-    - name: Pin last once_cell release supporting our msrv of Rust 1.64
+    - name: Pin last once_cell release supporting our msrv of Rust 1.68
       run: cargo update --package once_cell --precise 1.20.1
-    - name: Pin last gethostname release supporting our msrv of Rust 1.64
+    - name: Pin last gethostname release supporting our msrv of Rust 1.68
       run: cargo update --package gethostname --precise 1.0.1
-    - name: Pin last tracing-core release supporting our msrv of Rust 1.64
+    - name: Pin last tracing-core release supporting our msrv of Rust 1.68
       run: cargo update --package tracing-core --precise 0.1.33
-    - name: Pin last libloading release supporting our msrv of Rust 1.64
+    - name: Pin last libloading release supporting our msrv of Rust 1.68
       run: cargo update --package libloading --precise 0.8.8
-    - name: Pin last async-io release supporting our msrv of Rust 1.64
+    - name: Pin last async-io release supporting our msrv of Rust 1.68
       run: cargo update --package async-io --precise 2.5.0
-    - name: Pin last polling release supporting our msrv of Rust 1.64
+    - name: Pin last polling release supporting our msrv of Rust 1.68
       run: cargo update --package polling --precise 3.10.0
 
     # build

README.md

@@ -3,7 +3,7 @@
 [![GitHub Actions Status](https://github.com/psychon/x11rb/workflows/CI/badge.svg)](https://github.com/psychon/x11rb/actions)
 [![Crate](https://img.shields.io/crates/v/x11rb.svg)](https://crates.io/crates/x11rb)
 [![API](https://docs.rs/x11rb/badge.svg)](https://docs.rs/x11rb)
-![Minimum rustc version](https://img.shields.io/badge/rustc-1.64+-lightgray.svg)
+![Minimum rustc version](https://img.shields.io/badge/rustc-1.68+-lightgray.svg)
 [![License](https://img.shields.io/crates/l/x11rb.svg)](https://github.com/psychon/x11rb#license)
 
 Feel free to open issues for any problems or questions you might have.

clippy.toml

@@ -1 +1 @@
-msrv = "1.64.0"
+msrv = "1.68.0"

x11rb-async/Cargo.toml

@@ -10,7 +10,7 @@ authors = [
 repository = "https://github.com/psychon/x11rb"
 readme = "../README.md"
 edition = "2021"
-rust-version = "1.64"
+rust-version = "1.68"
 license = "MIT OR Apache-2.0"
 keywords = ["xcb", "X11", "async"]
 

x11rb-protocol/Cargo.toml

@@ -10,7 +10,7 @@ authors = [
 repository = "https://github.com/psychon/x11rb"
 readme = "../README.md"
 edition = "2021"
-rust-version = "1.64"
+rust-version = "1.68"
 license = "MIT OR Apache-2.0"
 keywords = ["xcb", "X11"]
 

x11rb/Cargo.toml

@@ -10,7 +10,7 @@ authors = [
 repository = "https://github.com/psychon/x11rb"
 readme = "../README.md"
 edition = "2021"
-rust-version = "1.64"
+rust-version = "1.68"
 license = "MIT OR Apache-2.0"
 keywords = ["xcb", "X11"]