I am getting a similar message attempting to install {dplyr} to an rstudio.cloud project
> install.packages("dplyr", dependencies = FALSE)
Installing package into ‘/home/rstudio-user/R/x86_64-pc-linux-gnu-library/3.6’
(as ‘lib’ is unspecified)
trying URL 'http://cran.rstudio.org/src/contrib/dplyr_0.8.5.tar.gz'
Content type 'application/x-gzip' length 1378766 bytes (1.3 MB)
==================================================
downloaded 1.3 MB
ERROR: dependencies ‘ellipsis’, ‘assertthat’, ‘glue’, ‘magrittr’, ‘pkgconfig’, ‘R6’, ‘Rcpp’, ‘rlang’, ‘tibble’, ‘tidyselect’, ‘BH’, ‘plogr’ are not available for package ‘dplyr’
* removing ‘/home/rstudio-user/R/x86_64-pc-linux-gnu-library/3.6/dplyr’
Warning in install.packages :
installation of package ‘dplyr’ had non-zero exit status
The downloaded source packages are in
‘/tmp/RtmpWLn0Fc/downloaded_packages’
>
I have been using rstudio.cloud for quite some time; installation of {dplyr} (and also {tidyverse}) was working earlier in the week.