ci: remove legacy rust version #158

	on: [push, pull_request]

	name: ci

	jobs:

	build-test:
	name: Build
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- stable # STABLE
	steps:
	- name: checkout
	uses: actions/checkout@v2
	- name: Generate cache key
	run: echo "${{ matrix.rust }}"
	- name: Set default toolchain
	run: rustup default ${{ matrix.rust }}
	- name: Set profile
	run: rustup set profile minimal
	- name: Add clippy
	run: rustup component add clippy
	- name: Update toolchain
	run: rustup update
	- name: Build
	run: cargo build
	- name: Clippy
	run: cargo clippy

	fmt:
	name: Rust fmt
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- name: Set default toolchain
	run: rustup default stable
	- name: Set profile
	run: rustup set profile minimal
	- name: Add clippy
	run: rustup component add rustfmt
	- name: Update toolchain
	run: rustup update
	- name: Check fmt
	run: cargo fmt --all -- --check

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