Debug issue with GitLab CI: package deldir not found

.Rbuildignore

@@ -10,7 +10,6 @@
 ^cran-comments\.md$
 ^public/
 ^R/pkg_deps.R
-
 ^CONDUCT\.md$
 ^inst/Example
 ^dev

.gitlab-ci.yml

@@ -18,7 +18,7 @@ image: rocker/shiny-verse
 ## CI_PROJECT_DIR: full path to where the repository is cloned
 ## CI_PROJECT_NAME is the project folder name
 variables:
-  R_LIBS_USER: "$CI_PROJECT_DIR/ci/lib"
+#  R_LIBS_USER: "$CI_PROJECT_DIR/ci/lib"
   CHECK_DIR: "$CI_PROJECT_DIR/ci/logs"
   BUILD_LOGS_DIR: "$CI_PROJECT_DIR/ci/logs/$CI_PROJECT_NAME.Rcheck"
 
@@ -28,11 +28,16 @@ test:
   # system requirements
   - apt-get install -y libv8-dev libjq-dev libprotobuf-dev protobuf-compiler libgdal-dev libproj-dev libudunits2-dev
   - R -e 'devtools::install_deps(dep = T, lib = Sys.getenv("R_LIBS_USER"))'
+  - echo $R_LIBS_USER
+  - R -e 'Sys.getenv("R_LIBS_USER")'
+  - R -e '.libPaths()'
+  - R -e 'installed.packages()["deldir",]'
   - R -e 'devtools::check(check_dir = Sys.getenv("CHECK_DIR"))'
   - R -e 'if (length(devtools::check_failures(path = Sys.getenv("BUILD_LOGS_DIR"), note = FALSE)) > 0) stop()'
-  cache:
-    paths:
-    - $R_LIBS_USER
+#  cache:
+#    paths:
+#    - $R_LIBS_USER
 
 after_script:
   - R -e 'covr::package_coverage(Sys.getenv("CI_PROJECT_DIR"))'
+