Rust errors / Everything else
Rust compiler error · checked with rustc 1.99.0
Rust error E0556: #### Note: this error code is no longer emitted by the compiler
What it means#### Note: this error code is no longer emitted by the compiler.
Retired: rustc no longer emits this error code. You may still see it in old answers, books and CI logs from older toolchains; the explanation below is kept for reference.
E0556Everything else
Retiredin rustc 1.99.0
7related errors linked below
The compiler team's explanation
Note: this error code is no longer emitted by the compiler.
The feature attribute was badly formed.
Erroneous code example:
#![feature(foo_bar_baz, foo(bar), foo = "baz", foo)] // error!
#![feature] // error!
#![feature = "foo"] // error!The feature attribute only accept a "feature flag" and can only be used on nightly. Example:
#![feature(flag)]From rustc --explain E0556 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.
Related errors
- E0061this function takes N arguments but M were supplied
- E0412cannot find type in this scope
- E0515cannot return reference to local variable
- E0728await is only allowed inside async functions and blocks
- E0524two closures require unique access to `*x` at the same time
- E0570The requested ABI is unsupported by the current target
- E0571`break` with value from a `while` loop
Up next
Often hit nextE0061: this function takes N arguments but M were suppliedA related error from the same family.Read it next →Did this answer your question?