## Motivation
`tracing` is built with Rust's 2018 edition, but some examples use
outdated idioms. Ideally, examples would show code using the currently
preferred idioms. This improves clarity, especially for newer Rust
programmers who may not be familiar with the idioms of earlier editions.
## Solution
This branch updates all the examples to use Rust 2018 edition idioms,
and adds `deny` attributes to prevent the use of outdated idioms.
* deny rust 2018 idiom lints in examples
* examples: update to use Rust 2018 idioms
* examples: remove most uses of `extern crate`
Signed-off-by: Eliza Weisman <eliza@buoyant.io>
See #95
This branch renames everything from `tokio-trace` to `tracing`.
Unlike PR #98, the nursery crates still depend on the crates.io
versions of `tokio-trace` and `tokio-trace-core`, but renamed
to `tracing`/`tracing-core` in `Cargo.toml`. We can update the
nursery crates to depend on local path dependencies in a
subsequent PR, as that will require making code changes to the
nursery crates.
This branch _also_ updates the minimum Rust version to 1.34.0,
to the shock and horror of the millions of `tracing` users still
on Rust 1.26.0. This was necessary in order to allow renaming
crates in `Cargo.toml`, and to resolve that not using the `dyn`
keyword is now a warning on nightly.
Closes#98Closes#95
Signed-off-by: Eliza Weisman <eliza@buoyant.io>
