add minutes from 2019.06.06

working-groups/meta/minutes/2019.06.06.md

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+# Meta WG 2019.06.06
+
+- [Video](https://youtu.be/UYrq3eINGUM)
+- [Dropbox paper](https://paper.dropbox.com/doc/Meta-WG-2019.06.06--Aeh5qqFUFXz4Usd_a899bZKGAg-VO3EBc6lEdNunBh6hxGfn)
+
+# Summary
+
+We focused on what the output from the "exploration" stage of a
+working group might look like. We [sketched out some
+examples](https://paper.dropbox.com/doc/Meta-WG-2019.06.06--Aeh5qqFUFXz4Usd_a899bZKGAg-VO3EBc6lEdNunBh6hxGfn#:uid=330091089397131641914243&h2=Error-handling)
+for the case of error handling. We settled on a rough outline looking
+roughly like this:
+
+- Problems in and around the space
+    - describe the problems we are aiming to solve, as precisely as we can
+        - give representative examples that can be referenced in the solutions
+    - aim for completeness, even if not everybody agrees it is a problem
+- Positives and strengths to consider
+    - things that are working well which might be “imperiled” by some of the solutions
+    - or just general things that we want to preserve and why
+- Solutions
+    - describe possible solutions
+        - what problems do they try to address
+    - relationships between the solutions
+        - do they build on one another?
+- Unknowns and constraints
+    - list out concerns, things to be resolved
+- Roadmap recommendation? Narrative?
+    - experiments? in particular, can we use procedural macros,
+      nightly builds, or other mechanisms to enable experimentation
+      and try to answer specific questions and ideas.
+    - this part was the least clear -- how much do we ex
+
+We looked a bit at the [TC39 homepage][TC39] and the way that it
+clearly identifies proposals by stage and had some back-and-forth
+about how to compare that with our existing set of [github pulls].
+
+[TC39]: https://github.com/tc39/proposals
+[github pulls]: https://github.com/rust-lang/rfcs/pulls/
+
+# Homework and next meeting
+
+Before our next meeting, we should:
+
+- Research the [TC39 process][TC39], for those unfamiliar with it, or
+  other relevant processes.
+- Niko would like to try and apply this exploration to `impl Trait` or
+  some other example, but this may not happen. :)
+
+Although this wasn't discussed in the meeting, next meeting I hope to
+spend a bit of time digging into other processes to learn more about
+how they work. In particular probably starting with Chef, to build on
+some "local expertise". --nikomatsakis