Here is a possible implementation of bubble sort in Rust:

```rust
// A function to sort a vector of integers using bubble sort
fn bubble_sort(mut v: Vec<i32>) -> Vec<i32> {
    // Get the length of the vector
    let n = v.len();
    // Loop over the vector n-1 times
    for i in 0..n-1 {
        // Loop over the unsorted part of the vector
        for j in 0..n-i-1 {
            // If the current element is larger than the next one, swap them
            if v[j] > v[j+1] {
                v.swap(j, j+1);
            }
        }
    }
    // Return the sorted vector
    v
}

// A function to test the bubble sort function
fn main() {
    // Create a vector of integers
    let v = vec![5, 3, 8, 2, 6, 4, 7, 1];
    // Print the original vector
    println!("Original vector: {:?}", v);
    // Sort the vector using bubble sort
    let sorted_v = bubble_sort(v);
    // Print the sorted vector
    println!("Sorted vector: {:?}", sorted_v);
}
```
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