error: whitespace control is not allowed on `extends`
       problems parsing template source at row 1, column 2 near:
       "- extends \"whatever.html\" %}"
 --> tests/ui/extends.rs:3:10
  |
3 | #[derive(Template)]
  |          ^^^^^^^^
  |
  = note: this error originates in the derive macro `Template` (in Nightly builds, run with -Z macro-backtrace for more info)

error: whitespace control is not allowed on `extends`
       problems parsing template source at row 1, column 2 near:
       " extends \"whatever.html\" -%}"
  --> tests/ui/extends.rs:10:10
   |
10 | #[derive(Template)]
   |          ^^^^^^^^
   |
   = note: this error originates in the derive macro `Template` (in Nightly builds, run with -Z macro-backtrace for more info)