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// Forbidding a group (here, `unused`) overrules subsequent allowance of both
// the group, and an individual lint in the group (here, `unused_variables`);
// and, forbidding an individual lint (here, `non_snake_case`) overrules
// subsequent allowance of a lint group containing it (here, `nonstandard_style`). See
// Issue #42873.
// If you turn off deduplicate diagnostics (which rustc turns on by default but
// compiletest turns off when it runs ui tests), then the errors are
// (unfortunately) repeated here because the checking is done as we read in the
// errors, and currently that happens two or three different times, depending on
// compiler flags.
//
// The test is much cleaner if we deduplicate, though.
// compile-flags: -Z deduplicate-diagnostics=yes
#![forbid(unused, non_snake_case)]
#![forbid(forbidden_lint_groups)]
#[allow(unused_variables)]
//~^ ERROR incompatible with previous
//~| WARNING this was previously accepted by the compiler
fn foo() {}
#[allow(unused)] //~ ERROR incompatible with previous
//~^ WARNING this was previously accepted by the compiler
fn bar() {}
#[allow(nonstandard_style)] //~ ERROR incompatible with previous
fn main() {
println!("hello forbidden world")
}
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