1 The name for an item declaration conflicts with an external crate's name.
3 Erroneous code example:
13 There are two possible solutions:
15 Solution #1: Rename the item.
23 Solution #2: Import the crate with a different name.
26 extern crate core as xyz;
31 See the Declaration Statements section of the reference for more information
32 about what constitutes an Item declaration and what does not:
34 https://doc.rust-lang.org/reference.html#statements