Top "Borrow-checker" questions

Cannot move out of borrowed content / cannot move out of behind a shared reference

I don't understand the error cannot move out of borrowed content. I have received it many times and I have …

reference rust move-semantics borrow-checker

Why can't I store a value and a reference to that value in the same struct?

I have a value and I want to store that value and a reference to something inside that value in …

lifetime borrow-checker rust

Cannot move out of borrowed content when trying to transfer ownership

I'm writing a linked list to wrap my head around Rust lifetimes, ownership and references. I have the following code: …

reference rust move-semantics borrow-checker

How can I do a mutable borrow in a for loop?

I tried: fn main() { let mut vec = [1, 2, 3]; for mut x in &vec { *x = 3; } for mut &x in &…

for-loop rust mutable borrow-checker

Cannot move out of value which is behind a shared reference when unwrapping

This is the code I am trying to execute: fn my_fn(arg1: &Option<Box<i32>&…

rust borrow-checker

Iterating over a vector of mutable references to trait objects

I have a struct that holds mutable references to trait objects: trait Task { fn do_it(&mut self); } struct …

rust borrow-checker

Temporary value is freed at the end of this statement

I'm trying to scrape a webpage using the Select crate: let document = Document::from_read(response).unwrap(); for node in …

rust borrow-checker

Getting "temporary value dropped while borrowed" when trying to update an Option<&str> in a loop

I'm trying to implement a commonly used pattern - using the result of a previous loop iteration in the next …

loops rust borrow-checker

"borrowed value does not live long enough" when using as_slice()

I ran into an error: extern crate rustc_serialize; // 0.3.24 use rustc_serialize::base64::{self, FromBase64, ToBase64}; fn main() { let a: […

rust borrow-checker