error: expected at least one digit in exponent --> $DIR/issue-90728.rs:2:7 | LL | a.5.2E+ | ^^^^^ error: unexpected token: `5.2E+` --> $DIR/issue-90728.rs:2:7 | LL | a.5.2E+ | ^^^^^ error: expected one of `.`, `;`, `?`, `}`, or an operator, found `5.2E+` --> $DIR/issue-90728.rs:2:7 | LL | a.5.2E+ | ^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator error: aborting due to 3 previous errors