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error: macro-expanded `extern crate` items cannot shadow names passed with `--extern`
--> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:19:9
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LL | extern crate std as core;
| ^^^^^^^^^^^^^^^^^^^^^^^^^
...
LL | define_other_core!();
| -------------------- in this macro invocation
|
= note: this error originates in the macro `define_other_core` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0659]: `Vec` is ambiguous
--> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:13:9
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LL | Vec::panic!();
| ^^^ ambiguous name
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= note: ambiguous because of a conflict between a macro-expanded name and a less macro-expanded name from outer scope during import or macro resolution
note: `Vec` could refer to the crate imported here
--> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:5:9
|
LL | extern crate std as Vec;
| ^^^^^^^^^^^^^^^^^^^^^^^^
...
LL | define_vec!();
| ------------- in this macro invocation
note: `Vec` could also refer to the struct defined here
--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
|
LL | pub use super::v1::*;
| ^^^^^^^^^^^^
= note: this error originates in the macro `define_vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0659`.
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