A migration that is stalling

20131022143445_add_subject_to_if_report.rb

# This one worked just fine 20 minutes ago. Nothing has changed since then.

class AddSubjectToIfReport < ActiveRecord::Migration
  def change
    add_column :if_reports, :subject, :text
  end
end

20131022171755_add_ack_date_to_if_report.rb

# This one isn't working. Here is the console output after "bundle exec rake db:migrate"

# ==  AddAckDateToIfReport: migrating ===========================================
# -- add_column(:if_reports, :ack_date, :datetime)
#

class AddAckDateToIfReport < ActiveRecord::Migration
  def change
    add_column :if_reports, :ack_date, :datetime
  end
end