toolchain: update to latest nightly

rmsyn · rmsyn · commit 7aac55ec136e · 2023-05-16T03:44:14.000Z
Nightly builds compile with the current version release (2023-05-15). Adding `codegen-units = 1` fixes compilation errors for debug builds. See: rust-lang/compiler-builtins#523 (comment)
diff --git a/Cargo.toml b/Cargo.toml
@@ -18,6 +18,7 @@ features = ["arduino-leonardo"]
 [profile.dev]
 opt-level = "s"
 lto = true
+codegen-units = 1
 
 [profile.release]
 opt-level = "s"
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "nightly-2023-03-24"
+channel = "nightly-2023-05-15"

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`[toolchain]`
`2`		`-channel = "nightly-2023-03-24"`
	`2`	`+channel = "nightly-2023-05-15"`