Merge #138 #153

138: Bump failure from 0.1.5 to 0.1.6 r=pitkley a=dependabot-preview[bot]

Bumps [failure](https://github.com/rust-lang-nursery/failure) from 0.1.5 to 0.1.6.
<details>
<summary>Changelog</summary>

*Sourced from [failure's changelog](https://github.com/rust-lang-nursery/failure/blob/master/RELEASES.md).*

> # Version 0.1.6
> 
> - Update `syn`, `quote`, and `proc_macro2` dependencies to 1.0.
> - Bump MSRV to 1.31.0.
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<summary>Commits</summary>

- See full diff in [compare view](https://github.com/rust-lang-nursery/failure/commits)
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153: Bump toml from 0.5.4 to 0.5.5 r=pitkley a=dependabot-preview[bot]

Bumps [toml](https://github.com/alexcrichton/toml-rs) from 0.5.4 to 0.5.5.
<details>
<summary>Commits</summary>

- [`7512904`](toml-rs/toml-rs@7512904) Bump to 0.5.5
- [`1e6bfbc`](toml-rs/toml-rs@1e6bfbc) replace copied wit filter_map for rustc 1.35 compatibility ([#354](https://github-redirect.dependabot.com/alexcrichton/toml-rs/issues/354))
- [`4673cfd`](toml-rs/toml-rs@4673cfd) Replace the test added by [#349](https://github-redirect.dependabot.com/alexcrichton/toml-rs/issues/349) with a bench ([#351](https://github-redirect.dependabot.com/alexcrichton/toml-rs/issues/351))
- [`4b05a9d`](toml-rs/toml-rs@4b05a9d) update ([#352](https://github-redirect.dependabot.com/alexcrichton/toml-rs/issues/352))
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