Fix create_dir issue

Didn't catch this as of course it was cached on my machine :p

Use create_dir_all. I initially used create_dir as I wasn't planning on
joining by anything more than just constime.

Author: codebycruz

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "constime"
 description = "Zig's comptime for Rust with zero dependencies. Mostly something to play around with until more stuff is const fn."
-version = "0.4.0"
+version = "0.4.1"
 
 authors = ["David Cruz <[email protected]>"]
 repository = "https://github.com/DvvCz/Constime"

src/lib.rs

@@ -51,7 +51,7 @@ pub fn comptime(mut code: TokenStream) -> TokenStream {
 	// Join by crate_name in the rare case of identical blocks across crates
 	let constime_base = std::env::temp_dir().join("constime").join(crate_name);
 	if !constime_base.exists() {
-		if let Err(why) = std::fs::create_dir(&constime_base) {
+		if let Err(why) = std::fs::create_dir_all(&constime_base) {
 			return build_error!("Failed to create temp directory: {why}");
 		}
 	}