Is this normal? (From the deploy log)
GET /v1/tasks/850972378/logs/ 910ms
[2021-01-08T13:42:41.373983078+0000] Execute script: packages/build/units.sh
+ set -e
+ apt-get update -qq
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://cran.rstudio.com/bin/linux/ubuntu xenial/ InRelease: The following signatures were invalid: KEYEXPIRED 1602869253 KEYEXPIRED 1602869253 KEYEXPIRED 1602869253
W: Failed to fetch http://cran.rstudio.com/bin/linux/ubuntu/xenial/InRelease The following signatures were invalid: KEYEXPIRED 1602869253 KEYEXPIRED 1602869253 KEYEXPIRED 1602869253
W: Some index files failed to download. They have been ignored, or old ones used instead.
+ apt-get install -y libudunits2-dev
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
libudunits2-0
The following NEW packages will be installed:
libudunits2-0 libudunits2-dev
0 upgraded, 2 newly installed, 0 to remove and 110 not upgraded.
...