trying URL 'https://cloud.r-project.org/src/contrib/data.table_1.12.4.tar.gz'
Content type 'application/x-gzip' length 5010321 bytes (4.8 MB)
==================================================
downloaded 4.8 MB

installing source package ‘data.table’ ...

** package ‘data.table’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fopenmp -fPIC  -Wall -g -O2  -c assign.c -o assign.o
clang: error: unsupported option '-fopenmp'
make: *** [assign.o] Error 1
ERROR: compilation failed for package ‘data.table’


removing ‘/Users/travis/R/Library/data.table’


restoring previous ‘/Users/travis/R/Library/data.table’


Error in i.p(...) :
(converted from warning) installation of package ‘data.table’ had non-zero exit status
Calls:  ... with_rprofile_user -> with_envvar -> force -> force -> i.p
Execution halted
The command "Rscript -e 'deps <- remotes::dev_package_deps(dependencies = NA);remotes::install_deps(dependencies = TRUE);if (!all(deps$package %in% installed.packages())) { message("missing: ", paste(setdiff(deps$package, installed.packages()), collapse=", ")); q(status = 1, save = "no")}'" failed and exited with 1 during .
Your build has been stopped.

Packages required but not available:
  'haven', 'curl', 'data.table', 'readxl', 'openxlsx', 'tibble'
Packages suggested but not available:

'bit64', 'testthat', 'knitr', 'magrittr', 'clipr', 'csvy', 'feather',

'fst', 'hexView', 'jsonlite', 'pzfx', 'readODS', 'readr', 'rmatio',

'xml2', 'yaml'