Change Rust edition to 2021 and MSRV to 1.56

Author: Bromeon

.github/workflows/full-ci.yml

@@ -121,7 +121,7 @@ jobs:
           - rust: { toolchain: 'nightly' }
             testflags: '-- --skip ui_tests'
           - os: { id: ubuntu-latest, name: linux }
-            rust: { toolchain: '1.51', postfix: ' (msrv 1.51)' }
+            rust: { toolchain: '1.56', postfix: ' (msrv 1.56)' }
             testflags: '-- --skip ui_tests'
           - os: { id: ubuntu-latest, name: linux }
             rust: { toolchain: 'stable', postfix: ' (minimal-deps)', special: 'minimal-deps' }
@@ -253,9 +253,9 @@ jobs:
           - rust: nightly
             godot: "3.4.1"
             postfix: ' (nightly)'
-          - rust: '1.51'
+          - rust: '1.56'
             godot: "3.4.1"
-            postfix: ' (msrv 1.51)'
+            postfix: ' (msrv 1.56)'
 
           # Test with oldest supported engine version
           - rust: stable

CHANGELOG.md

@@ -43,7 +43,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
-- MSRV is now 1.51 ([#833](https://github.com/godot-rust/godot-rust/pull/833))
+- MSRV is now 1.56 ([#833](https://github.com/godot-rust/godot-rust/pull/833), [#870](https://github.com/godot-rust/godot-rust/pull/870))
+- Rust edition is now 2021 ([#870](https://github.com/godot-rust/godot-rust/pull/870))
 - `euclid` vector library replaced with `glam`, no longer part of public API ([#713](https://github.com/godot-rust/godot-rust/pull/713))
 - `Variant` has now a redesigned conversion API ([#819](https://github.com/godot-rust/godot-rust/pull/819))
 - Type renames (815, 828)

README.md

@@ -14,6 +14,8 @@
 
 The bindings cover most of the exposed API of Godot 3.4, and are being used on a number of projects in development, but we still expect non-trivial breaking changes in the API in the coming releases. godot-rust adheres to [Cargo's semantic versioning](https://doc.rust-lang.org/cargo/reference/semver.html).
 
+Minimum supported Rust version (MSRV) is **1.56**.
+
 ## Engine compatibility
 
 We are committed to keeping compatibility with the latest stable patch releases of all minor versions of the engine, starting from Godot 3.2:

bindings-generator/Cargo.toml

@@ -8,7 +8,8 @@ homepage = "https://godot-rust.github.io/"
 license = "MIT"
 version = "0.10.0-rc.0"
 workspace = ".."
-edition = "2018"
+edition = "2021"
+rust-version = "1.56"
 
 [features]
 debug = []

examples/array-export/Cargo.toml

@@ -2,7 +2,8 @@
 name = "array_export"
 version = "0.1.0"
 authors = ["The godot-rust developers"]
-edition = "2018"
+edition = "2021"
+rust-version = "1.56"
 license = "MIT"
 publish = false
 

examples/dodge-the-creeps/Cargo.toml

@@ -3,7 +3,8 @@ name = "dodge_the_creeps"
 version = "0.1.0"
 authors = ["The godot-rust developers"]
 publish = false
-edition = "2018"
+edition = "2021"
+rust-version = "1.56"
 license = "MIT"
 
 [lib]

examples/hello-world/Cargo.toml

@@ -3,7 +3,8 @@ name = "hello_world"
 version = "0.1.0"
 authors = ["The godot-rust developers"]
 publish = false
-edition = "2018"
+edition = "2021"
+rust-version = "1.56"
 license = "MIT"
 
 [lib]

examples/native-plugin/Cargo.toml

@@ -2,7 +2,8 @@
 name = "native_plugin"
 version = "0.1.0"
 authors = ["The godot-rust developers"]
-edition = "2018"
+edition = "2021"
+rust-version = "1.56"
 license = "MIT"
 publish = false
 

examples/resource/Cargo.toml

@@ -3,7 +3,8 @@ name = "resource"
 version = "0.1.0"
 authors = ["The godot-rust developers"]
 publish = false
-edition = "2018"
+edition = "2021"
+rust-version = "1.56"
 license = "MIT"
 
 [lib]

examples/rpc/Cargo.toml

@@ -3,7 +3,8 @@ name = "rpc"
 version = "0.1.0"
 authors = ["The godot-rust developers"]
 publish = false
-edition = "2018"
+edition = "2021"
+rust-version = "1.56"
 license = "MIT"
 
 [lib]