Bug#964770: lintian: lintian will get stuck on arm64

[Kentaro Hayashi <hayashi@clear-code.com>]

Hi,

Here it the reproducible code.

  use v5.20;
  use warnings;
  use utf8;
  use autodie;

  use IO::Async::Loop;
  use IO::Async::Process;

  my $loop = IO::Async::Loop->new;
  my $future = $loop->new_future;
  my $status;

  my @command = ("nproc");
  print $future;

  $loop->run_child(
      command => [@command],
      on_finish => sub {
          my ($pid, $exitcode, $stdout, $stderr) = @_;
          $status = ($exitcode >> 8);

          if ($status) {
              my $message = "Command @command exited with status $status";
              $message .= ": $stderr" if length $stderr;
              $future->fail($message);
              return;
          }

          $future->done($stdout);
      });

  $loop->await($future);