Address newest Clippy warnings

[brunocodutra]

Gauntlet

cutechess-cli -tournament gauntlet -games 2 -rounds 1500 -openings file=engines/openings-6ply-1000.pgn plies=6 policy=round -concurrency 7 -ratinginterval 10 -resultformat wide -recover -engine conf=dev stderr=stderr.log -engine conf=Frozenight-6.0 -engine conf=Halogen-11.0 -engine conf=Marvin-6.2 -each tc=3+0.025 option.Hash=32 option.Threads=1

Rank Name                          Elo     +/-   Games    Wins  Losses   Draws   Points   Score    Draw 
   0 dev                           -13       5    9000    2219    2554    4227   4332.5   48.1%   47.0% 
   1 Frozenight-6.0                 18       9    3000     883     732    1385   1575.5   52.5%   46.2% 
   2 Marvin-6.2                     16       9    3000     806     671    1523   1567.5   52.3%   50.8% 
   3 Halogen-11.0                    6       9    3000     865     816    1319   1524.5   50.8%   44.0%

STS1-STS15_LAN_v6.epd

python sts_rating.py -f "./epd/STS1-STS15_LAN_v6.epd" -e dev -t 8 -h 256 --movetime 100 --maxpoint 100

STS Rating v14.2
Engine: chessboard
Hash: 256, Threads: 8, time/pos: 0.100s

Number of positions in ./epd/STS1-STS15_LAN_v6.epd: 1188
Max score = 1188 x 100 = 118800
Test duration: 00h:02m:30s
Expected time to finish: 00h:02m:34s

  STS ID   STS1   STS2   STS3   STS4   STS5   STS6   STS7   STS8   STS9  STS10  STS11  STS12  STS13  STS14  STS15    ALL
  NumPos     85     80     86     89     85     80     82     80     71     79     70     74     75     79     73   1188
 BestCnt     68     60     62     68     67     55     58     52     49     58     50     50     57     58     51    863
   Score   7818   6911   7459   8167   8000   7564   7073   6698   6127   7153   6323   6487   6725   7026   6468 105999
Score(%)   92.0   86.4   86.7   91.8   94.1   94.5   86.3   83.7   86.3   90.5   90.3   87.7   89.7   88.9   88.6   89.2

:: STS ID and Titles ::
STS 01: Undermining
STS 02: Open Files and Diagonals
STS 03: Knight Outposts
STS 04: Square Vacancy
STS 05: Bishop vs Knight
STS 06: Re-Capturing
STS 07: Offer of Simplification
STS 08: Advancement of f/g/h Pawns
STS 09: Advancement of a/b/c Pawns
STS 10: Simplification
STS 11: Activity of the King
STS 12: Center Control
STS 13: Pawn Play in the Center
STS 14: Queens and Rooks to the 7th rank
STS 15: Avoid Pointless Exchange

:: Top 5 STS with high result ::
1. STS 06, 94.5%, "Re-Capturing"
2. STS 05, 94.1%, "Bishop vs Knight"
3. STS 01, 92.0%, "Undermining"
4. STS 04, 91.8%, "Square Vacancy"
5. STS 10, 90.5%, "Simplification"

:: Top 5 STS with low result ::
1. STS 08, 83.7%, "Advancement of f/g/h Pawns"
2. STS 07, 86.3%, "Offer of Simplification"
3. STS 09, 86.3%, "Advancement of a/b/c Pawns"
4. STS 02, 86.4%, "Open Files and Diagonals"
5. STS 03, 86.7%, "Knight Outposts"

[codecov]

Codecov Report

Attention: Patch coverage is 95.87629% with 4 lines in your changes missing coverage. Please review.

Project coverage is 96.86%. Comparing base (ba97093) to head (82cdf70).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/uci.rs	69.23%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #643      +/-   ##
==========================================
- Coverage   97.01%   96.86%   -0.16%     
==========================================
  Files          46       46              
  Lines        3250     3252       +2     
==========================================
- Hits         3153     3150       -3     
- Misses         97      102       +5     

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