Bump rust-version to 1.77

.github/workflows/main.yml

@@ -43,7 +43,7 @@ jobs:
           - name: msrv
             os: ubuntu-22.04
             # sync MSRV with docs: guide/src/guide/installation.md and Cargo.toml
-            rust: 1.74.0
+            rust: 1.77.0
             target: x86_64-unknown-linux-gnu
     name: ${{ matrix.name }}
     steps:

Cargo.toml

@@ -17,7 +17,7 @@ license = "MPL-2.0"
 readme = "README.md"
 repository = "https://github.com/rust-lang/mdBook"
 description = "Creates a book from markdown files"
-rust-version = "1.74"
+rust-version = "1.77" # Keep in sync with installation.md and .github/workflows/main.yml
 
 [dependencies]
 anyhow = "1.0.71"

guide/src/guide/installation.md

@@ -20,7 +20,7 @@ To make it easier to run, put the path to the binary into your `PATH`.
 
 To build the `mdbook` executable from source, you will first need to install Rust and Cargo.
 Follow the instructions on the [Rust installation page].
-mdBook currently requires at least Rust version 1.74.
+mdBook currently requires at least Rust version 1.77.
 
 Once you have installed Rust, the following command can be used to build and install mdBook: