Remove critcmp code (it belongs in cargo-criterion) (#610)

* Delete critcmp code (it belongs in cargo-criterion)

* Bump MSRV to 1.57 due to os_str_bytes.

* Mention MSRV bump in CHANGELOG.

.github/workflows/ci.yaml

@@ -17,7 +17,7 @@ jobs:
         rust:
           - stable
           - beta
-          - 1.56.1  # MSRV
+          - 1.57  # MSRV
 
     steps:
       - uses: actions/checkout@v2

CHANGELOG.md

@@ -20,7 +20,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - HTML report hidden behind non-default feature flag: 'html_reports'
 - Standalone support (ie without cargo-criterion) feature flag: 'cargo_bench_support'
-- MSRV bumped to 1.56.1
+- MSRV bumped to 1.57
 - `rayon` and `plotters` are optional (and default) dependencies.
 - Status messages ('warming up', 'analyzing', etc) are printed to stderr, benchmark results are printed to stdout.
 - Accept subsecond durations for `--warm-up-time`, `--measurement-time` and `--profile-time`.

Cargo.toml

@@ -33,9 +33,6 @@ cast           = "0.3"
 num-traits     = { version = "0.2", default-features = false, features = ["std"] }
 oorandom       = "11.1"
 regex          = { version = "1.5", default-features = false, features = ["std"] }
-tabwriter      = "1.2.1"
-termcolor      = "1.1.2"
-unicode-width  = "0.1.9"
 
 # Optional dependencies
 rayon = { version = "1.3", optional = true }

README.md

@@ -119,7 +119,7 @@ For more details, see the [CONTRIBUTING.md file](https://github.com/bheisler/cri
 Criterion.<span></span>rs supports the last three stable minor releases of Rust. At time of
 writing, this means Rust 1.59 or later. Older versions may work, but are not guaranteed.
 
-Currently, the oldest version of Rust believed to work is 1.56.1. Future versions of Criterion.<span></span>rs may
+Currently, the oldest version of Rust believed to work is 1.57. Future versions of Criterion.<span></span>rs may
 break support for such old versions, and this will not be considered a breaking change. If you
 require Criterion.<span></span>rs to work on old versions of Rust, you will need to stick to a
 specific patch version of Criterion.<span></span>rs.

book/src/SUMMARY.md

@@ -20,7 +20,6 @@
     - [Custom Test Framework](./user_guide/custom_test_framework.md)
     - [Benchmarking async functions](./user_guide/benchmarking_async.md)
     - [Quick Mode](./user_guide/quick_mode.md)
-    - [Tabulating Results](./user_guide/tabulating_results.md)
     - [WebAssembly/WASI](./user_guide/wasi.md)
 - [cargo-criterion](./cargo_criterion/cargo_criterion.md)
   - [Configuring cargo-criterion](./cargo_criterion/configuring_cargo_criterion.md)
@@ -30,4 +29,4 @@
   - [Comparison to Criterion.rs](./iai/comparison.md)
 - [Analysis Process](./analysis.md)
 - [Frequently Asked Questions](./faq.md)
-- [Migrating from 0.2.* to 0.3.*](./migrating_0_2_to_0_3.md)
+- [Migrating from 0.2.* to 0.3.*](./migrating_0_2_to_0_3.md)