Updated versions

[Vest]

Updated Cargo dependencies
Formatted code
Corrected errors after new changes

[coveralls]

Pull Request Test Coverage Report for Build 4005027531

• 1492 of 1560 (95.64%) changed or added relevant lines in 44 files are covered.
• 5 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+1.8%) to 83.377%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
adv2015/src/day24.rs	10	11	90.91%
adv2020/src/day4.rs	41	42	97.62%
adv2015/src/day13.rs	131	134	97.76%
adv2020/src/day9.rs	15	18	83.33%
adv2020/src/day6.rs	6	14	42.86%
adventofcode/src/main.rs	0	13	0.0%
adv2020/src/day12.rs	40	55	72.73%
adv2020/src/day7.rs	2	26	7.69%

Files with Coverage Reduction	New Missed Lines	%
adventofcode/src/advent.rs	1	54.35%
adv2015/src/day7.rs	2	80.5%
adv2020/src/day7.rs	2	22.64%

Totals
Change from base Build 2483262882:	1.8%
Covered Lines:	5981
Relevant Lines:	6247

---

💛 - Coveralls