Add category no-std::no-alloc
This category restores a semantic category that used to be covered by
no-std before Rust 1.28.
@@ -402,6 +402,12 @@ description = """
Crates that are able to function without the Rust standard library.
"""
+[no-std.categories.no-alloc]
+name = "No dynamic allocation"
+description = """
+Crates that are able to function without the Rust alloc crate.\
+"""
+
[os]
name = "Operating systems"
description = """
