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error[E0259]: the name `core` is defined multiple times
--> $DIR/multiple-extern-by-macro-for-buitlin.rs:9:9
|
LL | extern crate core;
| ------------------ previous import of the extern crate `core` here
...
LL | extern crate std as core;
| ^^^^^^^^^^^^^^^^^^^^^^^^^ `core` reimported here
...
LL | m!();
| ---- in this macro invocation
|
= note: `core` must be defined only once in the type namespace of this module
= note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
help: you can use `as` to change the binding name of the import
|
LL | extern crate std as other_core;
| ++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0259`.
|
