I think you want
$ docker inspect --format="{{.Id}}" evil_swartz
756535dc6e9ab9b560f84c85063f55952273a23192641fc2756aa9721d9d1000
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I think you want
$ docker inspect --format="{{.Id}}" evil_swartz
756535dc6e9ab9b560f84c85063f55952273a23192641fc2756aa9721d9d1000