nested tuple field access formats as tuple field access and float

[phrohdoh]

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=1d48baa8ed38a4c4e3e5bade31c0a4f9

Input

struct A(String);
struct B(A);

fn do_thing(b: B) -> String {
    b.0.0
}

Output

struct A(String);
struct B(A);

fn do_thing(b: B) -> String {
    b.0 .0
}

Expected output

unchanged from input

Meta

• rustfmt version: 1.4.25-stable (0f29ff6d 2020-11-11)
• From where did you install rustfmt?: rustup

[calebcartwright]

Thanks for the report but closing as a duplicate of various issues (e.g. #4543), explained in #4355 (comment)