gistfile1.txt

sort.rs:179:5: 179:16 error: use of moved value: `write_cache`
sort.rs:179 				write_cache.push(number);
            				^~~~~~~~~~~
sort.rs:181:31: 181:42 note: `write_cache` moved here because it has type `std::vec::Vec<u64>`, which is non-copyable (perhaps you meant to use clone()?)
sort.rs:181 					write_u64(&mut fdOutput, write_cache);
            					                         ^~~~~~~~~~~
sort.rs:180:8: 180:19 error: use of moved value: `write_cache`
sort.rs:180 				if write_cache.len() >= items_per_run {
            				   ^~~~~~~~~~~
sort.rs:181:31: 181:42 note: `write_cache` moved here because it has type `std::vec::Vec<u64>`, which is non-copyable (perhaps you meant to use clone()?)
sort.rs:181 					write_u64(&mut fdOutput, write_cache);
            					                         ^~~~~~~~~~~
sort.rs:181:31: 181:42 error: use of moved value: `write_cache`
sort.rs:181 					write_u64(&mut fdOutput, write_cache);
            					                         ^~~~~~~~~~~
sort.rs:181:31: 181:42 note: `write_cache` moved here because it has type `std::vec::Vec<u64>`, which is non-copyable (perhaps you meant to use clone()?)
sort.rs:181 					write_u64(&mut fdOutput, write_cache);
            					                         ^~~~~~~~~~~
sort.rs:182:6: 182:17 error: use of moved value: `write_cache`
sort.rs:182 					write_cache.clear();
            					^~~~~~~~~~~
sort.rs:181:31: 181:42 note: `write_cache` moved here because it has type `std::vec::Vec<u64>`, which is non-copyable (perhaps you meant to use clone()?)
sort.rs:181 					write_u64(&mut fdOutput, write_cache);
            					                         ^~~~~~~~~~~
sort.rs:185:37: 185:48 error: use of moved value: `write_cache`
sort.rs:185 			None => write_u64(&mut fdOutput, write_cache),
            			                                 ^~~~~~~~~~~
sort.rs:181:31: 181:42 note: `write_cache` moved here because it has type `std::vec::Vec<u64>`, which is non-copyable (perhaps you meant to use clone()?)
sort.rs:181 					write_u64(&mut fdOutput, write_cache);
            					                         ^~~~~~~~~~~
error: aborting due to 5 previous errors

gistfile2.txt

fn write_u64(to: &mut File, items: Vec<u64>)