`run_quiet` outputs stdout/stderr when things go wrong. (was `run` uses `run_silent` under the covers.)
`run_quiet` outputs stdout/stderr when things go wrong.
(was `run` uses `run_silent` under the covers.)

aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust