E0520: include_str!("./error_codes/E0520.md"),
E0521: include_str!("./error_codes/E0521.md"),
E0522: include_str!("./error_codes/E0522.md"),
+E0523: include_str!("./error_codes/E0523.md"),
E0524: include_str!("./error_codes/E0524.md"),
E0525: include_str!("./error_codes/E0525.md"),
E0527: include_str!("./error_codes/E0527.md"),
// E0488, // lifetime of variable does not enclose its declaration
// E0489, // type/lifetime parameter not in scope here
// E0490, // removed: unreachable
- E0523, // two dependencies have same (crate-name, disambiguator) but different SVH
// E0526, // shuffle indices are not constant
// E0540, // multiple rustc_deprecated attributes
// E0548, // replaced with a generic attribute input check
The compiler found multiple library files with the requested crate name.
+```compile_fail
+// aux-build:crateresolve-1.rs
+// aux-build:crateresolve-2.rs
+// aux-build:crateresolve-3.rs
+
+extern crate crateresolve;
+//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found
+
+fn main() {}
+```
+
This error can occur in several different cases -- for example, when using
`extern crate` or passing `--extern` options without crate paths. It can also be
caused by caching issues with the build directory, in which case `cargo clean`
may help.
+
+In the above example, there are three different library files, all of which
+define the same crate name. Without providing a full path, there is no way for
+the compiler to know which crate it should use.
--- /dev/null
+#### Note: this error code is no longer emitted by the compiler.
+
+The compiler found multiple library files with the requested crate name.
+
+```compile_fail
+// aux-build:crateresolve-1.rs
+// aux-build:crateresolve-2.rs
+// aux-build:crateresolve-3.rs
+
+extern crate crateresolve;
+//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found
+
+fn main() {}
+```
+
+This error can occur in several different cases -- for example, when using
+`extern crate` or passing `--extern` options without crate paths. It can also be
+caused by caching issues with the build directory, in which case `cargo clean`
+may help.
+
+In the above example, there are three different library files, all of which
+define the same crate name. Without providing a full path, there is no way for
+the compiler to know which crate it should use.
+
+*Note that E0523 has been merged into E0464.*
for (_, other) in self.cstore.iter_crate_data() {
// Same stable crate id but different SVH
if other.stable_crate_id() == root.stable_crate_id() && other.hash() != root.hash() {
- return Err(CrateError::SymbolConflictsOthers(root.name()));
+ bug!(
+ "Previously returned E0523 here. \
+ See https://github.com/rust-lang/rust/pull/100599 for additional discussion.\
+ root.name() = {}.",
+ root.name()
+ );
}
}
pub crate_name: Symbol,
}
-#[derive(Diagnostic)]
-#[diag(metadata_symbol_conflicts_others, code = "E0523")]
-pub struct SymbolConflictsOthers {
- #[primary_span]
- pub span: Span,
- pub crate_name: Symbol,
-}
-
#[derive(Diagnostic)]
#[diag(metadata_stable_crate_id_collision)]
pub struct StableCrateIdCollision {
ExternLocationNotFile(Symbol, PathBuf),
MultipleCandidates(Symbol, CrateFlavor, Vec<PathBuf>),
SymbolConflictsCurrent(Symbol),
- SymbolConflictsOthers(Symbol),
StableCrateIdCollision(Symbol, Symbol),
DlOpen(String),
DlSym(String),
CrateError::SymbolConflictsCurrent(root_name) => {
sess.emit_err(errors::SymbolConflictsCurrent { span, crate_name: root_name });
}
- CrateError::SymbolConflictsOthers(root_name) => {
- sess.emit_err(errors::SymbolConflictsOthers { span, crate_name: root_name });
- }
CrateError::StableCrateIdCollision(crate_name0, crate_name1) => {
sess.emit_err(errors::StableCrateIdCollision { span, crate_name0, crate_name1 });
}
// Error codes that don't yet have a UI test. This list will eventually be removed.
const IGNORE_UI_TEST_CHECK: &[&str] =
- &["E0461", "E0465", "E0476", "E0514", "E0523", "E0554", "E0640", "E0717", "E0729"];
+ &["E0461", "E0465", "E0476", "E0514", "E0554", "E0640", "E0717", "E0729"];
macro_rules! verbose_print {
($verbose:expr, $($fmt:tt)*) => {
--- /dev/null
+// aux-build:crateresolve1-1.rs
+// aux-build:crateresolve1-2.rs
+// aux-build:crateresolve1-3.rs
+
+// normalize-stderr-test: "\.nll/" -> "/"
+// normalize-stderr-test: "\\\?\\" -> ""
+// normalize-stderr-test: "(lib)?crateresolve1-([123])\.[a-z]+" -> "libcrateresolve1-$2.somelib"
+
+// NOTE: This test is duplicated from `tests/ui/crate-loading/crateresolve1.rs`.
+
+extern crate crateresolve1;
+//~^ ERROR multiple candidates for `rlib` dependency `crateresolve1` found
+
+fn main() {}
--- /dev/null
+error[E0464]: multiple candidates for `rlib` dependency `crateresolve1` found
+ --> $DIR/E0523.rs:11:1
+ |
+LL | extern crate crateresolve1;
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = note: candidate #1: $TEST_BUILD_DIR/error-codes/E0523/auxiliary/libcrateresolve1-1.somelib
+ = note: candidate #2: $TEST_BUILD_DIR/error-codes/E0523/auxiliary/libcrateresolve1-2.somelib
+ = note: candidate #3: $TEST_BUILD_DIR/error-codes/E0523/auxiliary/libcrateresolve1-3.somelib
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0464`.