Rust web frameworks benchmark focus on static-file serving.

BENCHMARK

This is an opinioned benchmark that I have made for testing some Rust web frameworks focus on static-file serving feature using the minimal code that every framework provides.
Yes! This can vary per use case and is just another "benchmark".
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OS: Arch Linux
Kernel: Linux 5.6.2-arch1-2 x86_64 

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$ rustc -vV
rustc 1.42.0 (b8cedc004 2020-03-09)
binary: rustc
commit-hash: b8cedc00407a4c56a3bda1ed605c6fc166655447
commit-date: 2020-03-09
host: x86_64-unknown-linux-gnu
release: 1.42.0
LLVM version: 9.0
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NOTE: Examples are using `cargo build --release --target x86_64-unknown-linux-musl` except the first one.

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Load Testing used:
Date: 2020-04-08T21:04:07 UTC

echo "GET http://localhost:8787" |
    vegeta -cpus=12 attack -workers=10 -duration=60s -connections=10000 -rate=200 -http2=false
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1) gotham = "0.4.0" (cargo run)
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Bucket         #      %       Histogram
[0s,    2ms]   11219  93.49%  ######################################################################
[2ms,   4ms]   635    5.29%   ###
[4ms,   6ms]   90     0.75%   
[6ms,   +Inf]  56     0.47%   

2) gotham = "0.4.0" (cargo build --release --target x86_64-unknown-linux-musl)
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Bucket         #      %       Histogram
[0s,    2ms]   11731  97.76%  #########################################################################
[2ms,   4ms]   226    1.88%   #
[4ms,   6ms]   33     0.27%   
[6ms,   +Inf]  10     0.08%   


3) iron = "0.6.1" (cargo build --release --target x86_64-unknown-linux-musl)
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Bucket         #      %       Histogram
[0s,    2ms]   10004  83.37%  ##############################################################
[2ms,   4ms]   1515   12.62%  #########
[4ms,   6ms]   356    2.97%   ##
[6ms,   +Inf]  125    1.04% 


4) warp = "0.2"  (cargo build --release --target x86_64-unknown-linux-musl)
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Bucket         #      %       Histogram
[0s,    2ms]   11579  96.49%  ########################################################################
[2ms,   4ms]   313    2.61%   #
[4ms,   6ms]   73     0.61%   
[6ms,   +Inf]  35     0.29%