tracing: just control ansi colors with feature flags #1006
Merged
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This branch changes how ANSI terminal color codes are enabled. Now that
we have updated the proxy to Rust 1.52.1, we can use the
resolver = "2"
cargo feature, which results in feature flags enabled by dev
dependencies not enable features in the main build. This lets us
toggle ANSI colors on and off using a dev-dependency, the way you would
expect it to work.
Also, I moved all the test tracing setup into the
linkerd-tracing
crate, so we can use it everywhere.
Closes #997