fn check_block<'hir>(
ctx: &LintContext<'_, '_>,
hir: &'hir Hir<'hir>,
block: Block<'hir>,
tainted: &mut HashSet<VariableId>,
) -> boolfn check_block<'hir>(
ctx: &LintContext<'_, '_>,
hir: &'hir Hir<'hir>,
block: Block<'hir>,
tainted: &mut HashSet<VariableId>,
) -> bool