Declare minimum Rust version (1.95) and document it

Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 autoexamples = false
 
 [lints]
@@ -18,6 +19,9 @@ cuda = ["dep:processing_cuda", "processing_cuda/cuda"]
 resolver = "3"
 members = ["crates/*", "tools/*"]
 
+[workspace.package]
+rust-version = "1.95"
+
 [workspace.lints.clippy]
 type_complexity = "allow"
 too_many_arguments = "allow"

README.md

@@ -77,6 +77,12 @@ _Note: you can use any file name you want for your sketch_
 
 You'll need to install the Rust toolchain to work on this project. Most users will want to install Rust via [`rustup`](https://rustup.rs/), which helps manage Rust toolchain versions.
 
+libprocessing requires **Rust 1.95 or newer** (the minimum is set by `rust-version` in [`Cargo.toml`](Cargo.toml) and follows what our Bevy dependency requires). If you installed Rust a while ago, update to the latest stable toolchain before building:
+
+```bash
+rustup update stable
+```
+
 ### Clone the project and its submodules
 
 When cloning this repo (or your fork), don't forget to install its submodules (eg. Lygia)

crates/processing_audio/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_audio"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [dependencies]
 bevy = { workspace = true }

crates/processing_core/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_core"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_cuda/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_cuda"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_ffi/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_ffi"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_glfw/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_glfw"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_input/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_input"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_midi/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_midi"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [dependencies]
 bevy = { workspace = true }

crates/processing_node/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_node"
 version = "0.0.5"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_pyo3/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_pyo3"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_render/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_render"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

crates/processing_wasm/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_wasm"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["cdylib", "rlib"]

crates/processing_webcam/Cargo.toml

@@ -2,6 +2,7 @@
 name = "processing_webcam"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 
 [lints]
 workspace = true

tools/generate_stubs/Cargo.toml

@@ -2,6 +2,7 @@
 name = "generate_stubs"
 version = "0.4.0"
 edition = "2024"
+rust-version.workspace = true
 publish = false
 
 [dependencies]