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Rust compiler error · checked with rustc 1.99.0

Rust error E0632: #### 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.

E0632Everything else
Retiredin rustc 1.99.0
8related errors linked below

The compiler team's explanation

Note: this error code is no longer emitted by the compiler.

An explicit generic argument was provided when calling a function that uses impl Trait in argument position.

Erroneous code example:

fn foo<T: Copy>(a: T, b: impl Clone) {}

foo::<i32>(0i32, "abc".to_string());

Either all generic arguments should be inferred at the call site, or the function definition should use an explicit generic type parameter instead of impl Trait. Example:

fn foo<T: Copy>(a: T, b: impl Clone) {}
fn bar<T: Copy, U: Clone>(a: T, b: U) {}

foo(0i32, "abc".to_string());

bar::<i32, String>(0i32, "abc".to_string());
bar::<_, _>(0i32, "abc".to_string());
bar(0i32, "abc".to_string());

From rustc --explain E0632 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.

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All 518 Rust error codes · Rust crate data · Glossary

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