{}

Rust Compiler Errors

Decode the borrow checker — every error mapped to a canonical pattern.

E0050trait
Method has incorrect number of parameters in trait impl
Impl method's arity disagrees with the trait.
E0061type-check
This function takes X parameters but Y were supplied
Argument count mismatch at a call site.
E0062type-check
Field specified more than once
A struct literal sets the same field twice.
E0063type-check
Missing field in struct literal
A struct literal omits a field that has no default.
E0072type-check
Recursive type has infinite size
A struct or enum recursively contains itself with no indirection.
E0080type-check
Constant evaluation error
A `const` expression overflowed, divided by zero, or otherwise broke at compile time.
E0106lifetime
Missing lifetime specifier
A reference appears in a position where the compiler can't infer its lifetime.
E0107type-check
Wrong number of generic arguments
A type or function expects N generics but got a different count.
E0119trait
Conflicting implementations of trait
Two impls match the same type — coherence rule violated.
E0204trait
The trait `Copy` may not be implemented for this type
A field doesn't implement `Copy` — the whole struct can't either.
E0252name-resolution
Name is imported twice
Two `use` statements bring the same name into scope.
E0271trait
Type mismatch resolving trait bound
An associated type doesn't match what the bound requires.