Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: @len_snart gives a frustrated growl, before stepping closer and putting his gun through the barrier. No alarms and nothing happened. He-
This tweet contains emotions: 
anger, disgust