| $ cargo run |
| Compiling ownership v0.1.0 (file:///projects/ownership) |
| error[E0502]: cannot borrow `s` as mutable because it is also borrowed as immutable |
| --> src/main.rs:6:14 |
| | |
| 4 | let r1 = &s; // no problem |
| | -- immutable borrow occurs here |
| 5 | let r2 = &s; // no problem |
| 6 | let r3 = &mut s; // BIG PROBLEM |
| | ^^^^^^ mutable borrow occurs here |
| 7 | |
| 8 | println!("{}, {}, and {}", r1, r2, r3); |
| | -- immutable borrow later used here |
| |
| For more information about this error, try `rustc --explain E0502`. |
| error: could not compile `ownership` (bin "ownership") due to 1 previous error |
