* Sections like `[dependencies.foo]` can be entries in a `[dependencies]`
section with the `{key = value}` syntax.
* Per-target dependencies can be expressed with more general `cfg(…)`
conditions instead of exact target triples:
https://github.com/rust-lang/cargo/pull/2328
This commit adds a test crate for the time profiler to `tests/unit/profile`. The
only unit test contained in this crate is a smoke test that the time profiler
thread can be created and destroyed. It serves as a place for adding new tests
in the future.
