Bump proc-macro2 from 1.0.34 to 1.0.35 (#911)
Bump proc-macro2 from 1.0.34 to 1.0.35 (#911)

Bumps [proc-macro2](https://github.com/dtolnay/proc-macro2) from 1.0.34 to 1.0.35.
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](https://github.com/dtolnay/proc-macro2/compare/1.0.34...1.0.35)

---
updated-dependencies:
- dependency-name: proc-macro2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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xd009642/tarpaulin,xd009642/tarpaulin