Fix E0601: Use of Moved Value

Thu, 16 Jul 2026 10:20:04 +0800

1. Symptoms

The Rust compiler emits error E0601 when your code attempts to use a variable whose ownership has been transferred elsewhere. The compiler displays a diagnostic message identifying the exact location where the moved value is being accessed, along with an annotation showing where the move occurred.

Typical compiler output:

error[E0601]: `variable` doesn't implement the `Copy` trait
  --> src/main.rs:10:5
   |
7  |     let s1 = String::from("hello");
   |         -- move occurs because `s1` has type `String`, which does not implement the `Copy` trait
8  |     let s2 = s1;
   |             -- value moved here
9  |
10 |     println!("{}", s1);
   |                     ^^ value borrowed here after move
   |
help: consider cloning the value if the performance cost is acceptable
  |
10 |     println!("{}", s1.clone());

Common manifestation patterns:

E0601 on ErrorVault — Developer Error Code Dictionary

Fix E0601: Use of Moved Value

1. Symptoms