# Pastebin aUZIumWk
@ericmj it appears that immediately after rescuing this exception, the connection is no longer good: 

%Ecto.ConstraintError{constraint: "index_confirmations_on_receiving",
 message: "constraint error when attempting to insert model:\n\n    * unique: index_confirmations_on_receiving\n\nIf you would like to convert this constraint into an error, please\ncall unique_constraint/3 in your changeset and define the proper\nconstraint name. The changeset has not defined any constraint.\n",
 type: :unique}