Added temporary patch for a syntax error in the wireless drivers

Signed-off-by: Marc 'risson' Schmitt <marc.schmitt@risson.space>

https://lists.zx2c4.com/pipermail/wireguard/2020-December/006210.html

https://github.com/google/evcxr/blob/v0.7.0/RELEASE_NOTES.md#version-070

Failing build: https://hydra.nixos.org/build/134175791
ChangeLog: https://github.com/racer-rust/racer/blob/v2.1.40/CHANGELOG.md

A few more things are worth noting:

* It's not possible to update to latest version (2.1.42) at the time of
  committing since this requires a newer `rustc` (1.51 to be precise) to
  compile.
* For proper completion, `rustLibSrc` rather than `rustcSrc` must be
  used now. The two were separated here previously[1].
* Dropped the `checkPhase` and replaced it with a list of `checkFlags`.
  This has the benefit that the default `checkPhase` from
  `buildRustPackage` can be used which properly configures parallelism
  and which target to use (i.e. `release` in this case which reduces
  build time).

[1] 68060f6

overmind: 2.1.1 -> 2.2.0

eksctl: 0.34.0 -> 0.35.0

visidata: 2.1 -> 2.1.1

warsow: fix src url

aws-nuke: init at 2.14.0