I'm in the rust track and the second item in the core exercises displayed for me is "Twofer" ... there is no problem introduction beyond the title "Introduction", and any attempt do download the exercise with mentorcism throws:
Error: unable to parse API response - invalid character '<' looking for beginning of value
It appears that at some point "two-fer" was deprecated and renamed "twofer" ... but neither appears to be part of the core track for Rust.
I'm in the rust track and the second item in the core exercises displayed for me is "Twofer" ... there is no problem introduction beyond the title "Introduction", and any attempt do download the exercise with mentorcism throws:
Error: unable to parse API response - invalid character '<' looking for beginning of value
It appears that at some point "two-fer" was deprecated and renamed "twofer" ... but neither appears to be part of the core track for Rust.
Thread on Slack here.