Remove opaque-debug and collectable (#1452)

`opaque-debug` is no longer used in RustCrypto crates and its uses were
replaced by explicit `fmt::Debug` implementations, so the crate is de
facto deprecated. I intend to release empty `opaque-debug` v0.4.0 with
deprecation notice.

`collectable` is also abandoned.

Author: newpavlov

.github/workflows/opaque-debug.yml

@@ -14,7 +14,6 @@ on:
       'digest-io-v*',
       'hex-literal-v*',
       'inout-v*',
-      'opaque-debug-v*',
       'zeroize-v*'
     ]
 

.github/workflows/publish.yml

@@ -4,15 +4,13 @@ members = [
     "blobby",
     "block-buffer",
     "block-padding",
-    "collectable",
     "cmov",
     "cpubits",
     "ctutils",
     "cpufeatures",
     "dbl",
     "hex-literal",
     "inout",
-    "opaque-debug",
     "wycheproof2blb",
     "zeroize",
     "zeroize_derive",

Cargo.lock

@@ -15,15 +15,13 @@ This repository contains various utility crates used in the RustCrypto project.
 | [`block-buffer`] | [![crates.io](https://img.shields.io/crates/v/block-buffer.svg)](https://crates.io/crates/block-buffer) | [![Documentation](https://docs.rs/block-buffer/badge.svg)](https://docs.rs/block-buffer) | Fixed size buffer for block processing of data |
 | [`block‑padding`] | [![crates.io](https://img.shields.io/crates/v/block-padding.svg)](https://crates.io/crates/block-padding) | [![Documentation](https://docs.rs/block-padding/badge.svg)](https://docs.rs/block-padding) | Padding and unpadding of messages divided into blocks |
 | [`cmov`] | [![crates.io](https://img.shields.io/crates/v/cmov.svg)](https://crates.io/crates/cmov) | [![Documentation](https://docs.rs/cmov/badge.svg)](https://docs.rs/cmov) | Conditional move intrinsics |
-| [`collectable`] | [![crates.io](https://img.shields.io/crates/v/collectable.svg)](https://crates.io/crates/collectable) | [![Documentation](https://docs.rs/collectable/badge.svg)](https://docs.rs/collectable) | Fallible, `no_std`-friendly collection traits |
 | [`cpubits`] | [![crates.io](https://img.shields.io/crates/v/cpubits.svg)](https://crates.io/crates/cpubits) | [![Documentation](https://docs.rs/cpubits/badge.svg)](https://docs.rs/cpubits) | Compile-time detection heuristics for the optimal word size to use for the target CPU |
 | [`cpufeatures`] | [![crates.io](https://img.shields.io/crates/v/cpufeatures.svg)](https://crates.io/crates/cpufeatures) | [![Documentation](https://docs.rs/cpufeatures/badge.svg)](https://docs.rs/cpufeatures) | Lightweight and efficient alternative to the `is_x86_feature_detected!` macro |
 | [`ctutils`] | [![crates.io](https://img.shields.io/crates/v/ctutils.svg)](https://crates.io/crates/ctutils) | [![Documentation](https://docs.rs/ctutils/badge.svg)](https://docs.rs/ctutils) | Constant-time utility library with selection and equality testing support targeting cryptographic applications |
 | [`dbl`] | [![crates.io](https://img.shields.io/crates/v/dbl.svg)](https://crates.io/crates/dbl) | [![Documentation](https://docs.rs/dbl/badge.svg)](https://docs.rs/dbl) | Double operation in Galois Field (GF) |
 | [`digest-io`] | [![crates.io](https://img.shields.io/crates/v/digest-io.svg)](https://crates.io/crates/digest-io) | [![Documentation](https://docs.rs/digest-io/badge.svg)](https://docs.rs/digest-io) | `std::io`-compatibility wrappers for traits defined in the `digest` crate |
 | [`hex-literal`] | [![crates.io](https://img.shields.io/crates/v/hex-literal.svg)](https://crates.io/crates/hex-literal) | [![Documentation](https://docs.rs/hex-literal/badge.svg)](https://docs.rs/hex-literal) | A macro for converting hexadecimal strings to a byte array at compile time |
 | [`inout`] | [![crates.io](https://img.shields.io/crates/v/inout.svg)](https://crates.io/crates/inout) | [![Documentation](https://docs.rs/inout/badge.svg)](https://docs.rs/inout) | Custom reference types for code generic over in-place and buffer-to-buffer modes of operation. |
-| [`opaque-debug`] | [![crates.io](https://img.shields.io/crates/v/opaque-debug.svg)](https://crates.io/crates/opaque-debug) | [![Documentation](https://docs.rs/opaque-debug/badge.svg)](https://docs.rs/opaque-debug) | Macro for opaque `Debug` trait implementation |
 | [`wycheproof2blb`] |  |  | | Utility for converting [Wycheproof] test vectors to the blobby format |
 | [`zeroize`] | [![crates.io](https://img.shields.io/crates/v/zeroize.svg)](https://crates.io/crates/zeroize) | [![Documentation](https://docs.rs/zeroize/badge.svg)](https://docs.rs/zeroize) | Securely zero memory while avoiding compiler optimizations |
 
@@ -55,15 +53,13 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
 [`block-buffer`]: ./block-buffer
 [`block‑padding`]: ./block-padding
 [`cmov`]: ./cmov
-[`collectable`]: ./collectable
 [`cpubits`]: ./cpubits
 [`cpufeatures`]: ./cpufeatures
 [`ctutils`]: ./ctutils
 [`dbl`]: ./dbl
 [`digest-io`]: ./digest-io
 [`hex-literal`]: ./hex-literal
 [`inout`]: ./inout
-[`opaque-debug`]: ./opaque-debug
 [`wycheproof2blb`]: ./wycheproof2blb
 [`zeroize`]: ./zeroize