error: expected at least one digit in exponent
  --> $DIR/ice-10912.rs:3:28
   |
LL | fn f2() -> impl Sized { && 3.14159265358979323846E }
   |                            ^^^^^^^^^^^^^^^^^^^^^^^

error: long literal lacking separators
  --> $DIR/ice-10912.rs:3:28
   |
LL | fn f2() -> impl Sized { && 3.14159265358979323846E }
   |                            ^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `3.141_592_653_589_793_238_46`
   |
   = note: `-D clippy::unreadable-literal` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::unreadable_literal)]`

error: aborting due to 2 previous errors