Tests not reporting failure reasons?

Does anybody know if something changed with the cargo test recently? My failing tests no longer report why they're failing:


    src/angle_u8.rs - angle_u8::AngleU8::tan (line 341)

test result: FAILED. 16 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out

error: test failed, to rerun pass '--doc'

It's been quite frustrating to have to recreate failing tests in a binary each time.