Poor formatting in sequential tuple struct invocations

[sanbox-irl]

Input

fn test() {
    self.1 .0;
}

Output

fn test() {
    self.1 .0;
}

Note the space after the 1

Expected output

fn test() {
    self.1.0;
}

Meta

• rustfmt version: rustfmt 1.4.24-stable (eb894d5 2020-11-05)
• From where did you install rustfmt?: rustup

[calebcartwright]

Closing as duplicate, more context in #4355 (comment)