Package namespaces and package names are not generatable in combination

Looking at the wit-syntax the following is supported

package-decl ::= 'package' ( id ':' )+ id ( '/' id )* ('@' valid-semver)? ';'

Using it

package com:mydomain/tree/leaf;

interface foo {

record stat {
ino: u64,
size: u64,
}
}

world x {
export foo;
}

Generating fails with
tool@6fddbba60b7a:/workspaces/test_wit# wit-bindgen rust my_interface.wit
Error: expected '{', found `/`
--> my_interface.wit:1:21
|
1 | package com:mydomain/tree/leaf;
| ^

I think this should be supported