upkeep: gains simple error handling #56

Job	Run time
R Package Checks / codecov / test-coverage	1h 14m 9s
R Package Checks / docs-check / docs-check	1m 27s
R Package Checks / check-R-updates / updated-files	5s
R Package Checks / lintr / lint	1m 20s
R Package Checks / r-cmd-check / macOS-latest (release)	1m 46s
R Package Checks / r-cmd-check / windows-latest (release)	3m 11s
R Package Checks / r-cmd-check / windows-latest (3.6)	3m 24s
R Package Checks / r-cmd-check / windows-latest (4.1)	5m 40s
R Package Checks / r-cmd-check / ubuntu-latest (release)	1m 29s
R Package Checks / r-cmd-check / ubuntu-latest (devel)	3m 4s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-1)	1m 56s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-2)	2m 8s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-3)	2m 15s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-4)	2m 7s
R Package Checks / version-check / version-check	1m 9s
	1h 45m 10s

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