• using R version 4.0.0 (2020-04-24)
• using platform: x86_64-apple-darwin17.0 (64-bit)
• using session charset: UTF-8
• checking for file ‘Seurat/DESCRIPTION’ ... OK
• this is package ‘Seurat’ version ‘3.1.5’
• package encoding: UTF-8
• checking package namespace information ... OK
• checking package dependencies ... NOTE
  Packages suggested but not available for checking:
    'loomR', 'SDMTools', 'SingleCellExperiment', 'MAST', 'monocle'
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking whether package ‘Seurat’ can be installed ... [65s/93s] OK
• checking installed package size ... NOTE
    installed size is 9.1Mb
    sub-directories of 1Mb or more:
      R 1.1Mb
      libs 7.3Mb
• checking package directory ... OK
• checking DESCRIPTION meta-information ... OK
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking R files for non-ASCII characters ... OK
• checking R files for syntax errors ... OK
• checking whether the package can be loaded ... OK
• checking whether the package can be loaded with stated dependencies ... OK
• checking whether the package can be unloaded cleanly ... OK
• checking whether the namespace can be loaded with stated dependencies ... OK
• checking whether the namespace can be unloaded cleanly ... OK
• checking loading without being on the library search path ... OK
• checking dependencies in R code ... OK
• checking S3 generic/method consistency ... OK
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... [28s/37s] OK
• checking Rd files ... OK
• checking Rd metadata ... OK
• checking Rd cross-references ... NOTE
  Package unavailable to check Rd xrefs: ‘loomR’
  Unknown package ‘SDMTools’ in Rd xrefs
• checking for missing documentation entries ... OK
• checking for code/documentation mismatches ... OK
• checking Rd \usage sections ... OK
• checking Rd contents ... OK
• checking for unstated dependencies in examples ... OK
• checking contents of ‘data’ directory ... OK
• checking data for non-ASCII characters ... OK
• checking data for ASCII and uncompressed saves ... OK
• checking line endings in C/C++/Fortran sources/headers ... OK
• checking line endings in Makefiles ... OK
• checking compilation flags in Makevars ... OK
• checking for GNU extensions in Makefiles ... OK
• checking for portable use of $(BLAS_LIBS) and $(LAPACK_LIBS) ... OK
• checking use of PKG_*FLAGS in Makefiles ... OK
• checking compiled code ... OK
• checking examples ... [15s/23s] OK
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [19s/27s] OK
    Running ‘testthat.R’ [18s/26s]
• checking PDF version of manual ... OK
• DONE
  Status: 3 NOTEs