* Only run tests once in CI
We run codecov after successful test runs. This ~doubles the length of
CI jobs, sicne the codecov run reproduces nearly all tests.
To avoid this, we just run the codecov tests as part of our normal test
script.
* s/before_script/install
* only publish coverage after test completes
* run all tests for coverage
* remove hpack from coverage
* fix tyop
* cargo clean
This change adds a .rustfmt.toml that includes ALL supported settings,
12 of which we have overridden to attempt to cater to our own
proclivities.
rustfmt is checked in the rust-nightly CI job.
