Don't use travis-cargo for workspace test
Don't use travis-cargo for workspace test

SecurityInsanity/rusoto,DualSpark/rust-aws,ford-prefect/rusoto,mattico/rusoto,SecurityInsanity/rusoto,mattico/rusoto,DualSpark/rusoto,ford-prefect/rusoto,DualSpark/rusoto,rusoto/rusoto,mthjones/rusoto,mthjones/rusoto,rusoto/rusoto,mattico/rusoto,DualSpark/rusoto,rusoto/rusoto,DualSpark/rust-aws,DualSpark/rust-aws