mv std libs to library/

library/rustc-std-workspace-alloc/lib.rs

@@ -0,0 +1,9 @@
+#![feature(no_core)]
+#![no_core]
+
+// See rustc-std-workspace-core for why this crate is needed.
+
+// Rename the crate to avoid conflicting with the alloc module in liballoc.
+extern crate alloc as foo;
+
+pub use foo::*;