Various cleanups

[fafhrd91]

No description provided.

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (ceb70ad) 65.45% compared to head (52e1298) 65.93%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #155      +/-   ##
==========================================
+ Coverage   65.45%   65.93%   +0.47%     
==========================================
  Files          53       53              
  Lines        9350     9346       -4     
==========================================
+ Hits         6120     6162      +42     
+ Misses       3230     3184      -46     

Files	Coverage Δ
src/error.rs	33.33% <100.00%> (ø)
src/v3/server.rs	57.59% <100.00%> (+0.60%)	⬆️
src/v5/server.rs	56.38% <100.00%> (+0.49%)	⬆️
src/v3/dispatcher.rs	70.73% <80.00%> (+1.54%)	⬆️
src/io.rs	83.04% <89.36%> (+5.64%)	⬆️

... and 5 files with indirect coverage changes

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