clippy fixes

[elinorbgr]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.16%. Comparing base (ea03873) to head (02d00c2).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #710   +/-   ##
=======================================
  Coverage   76.16%   76.16%           
=======================================
  Files          45       45           
  Lines        8153     8153           
=======================================
  Hits         6210     6210           
  Misses       1943     1943           

Flag	Coverage Δ
main	59.06% <0.00%> (ø)
test--	81.07% <100.00%> (ø)
test--server_system	64.66% <100.00%> (ø)
test-client_system-	72.18% <100.00%> (ø)
test-client_system-server_system	54.96% <100.00%> (ø)

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