Update secp256k1 requirement from 0.27 to 0.28 #91

	name: Compilation and Testing Suite

	on:
	pull_request:
	push:
	branches:
	- master
	tags:
	- v*
	paths-ignore:
	- 'README.md'
	jobs:

	check-test-build:
	name: Check, test and build
	runs-on: ubuntu-latest
	env:
	RUST_BACKTRACE: full
	steps:
	- name: Cancel Previous Runs
	uses: styfle/[email protected]
	with:
	access_token: ${{ github.token }}
	- name: Checkout sources & submodules
	uses: actions/checkout@master
	with:
	fetch-depth: 5
	submodules: recursive
	## Check Stage
	- name: Checking rust-stable
	uses: actions-rs/cargo@master
	with:
	command: check
	toolchain: stable
	args: --all --verbose

	## Test Stage
	- name: Testing rust-stable
	uses: actions-rs/cargo@master
	with:
	command: test
	toolchain: stable
	args: --all --verbose

	## Build Stage
	- name: Building rust-stable
	uses: actions-rs/cargo@master
	if: github.ref == 'refs/heads/master'
	with:
	command: build
	toolchain: stable
	args: --all --verbose

	check-features:
	name: Check features
	runs-on: ubuntu-latest
	env:
	RUST_BACKTRACE: full
	steps:
	- name: Cancel Previous Runs
	uses: styfle/[email protected]
	with:
	access_token: ${{ github.token }}
	- name: Checkout sources & submodules
	uses: actions/checkout@master
	with:
	fetch-depth: 5
	submodules: recursive
	- name: Testing with pure Rust dependencies
	uses: actions-rs/cargo@master
	with:
	command: test
	toolchain: stable
	args: --all --verbose --no-default-features --features pure-rust

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