* using log directory '/builds/Rdatatable/data.table/data.table.Rcheck'
* using R version 4.5.0 (2025-04-11)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc (Debian 14.2.0-19) 14.2.0
    GNU Fortran (Debian 14.2.0-19) 14.2.0
* running under: Debian GNU/Linux 13 (trixie)
* using session charset: ASCII
* using options '--no-manual --ignore-vignettes'
* checking for file 'data.table/DESCRIPTION' ... OK
* this is package 'data.table' version '1.18.99'
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... INFO
Packages suggested but not available for checking:
  'bit64', 'R.utils', 'xts', 'zoo', 'yaml', 'litedown'

Packages which this enhances but not available for checking:
  'knitr', 'xfun'
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for .dll and .exe 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 'data.table' can be installed ... OK
* used C compiler: 'gcc (Debian 14.2.0-19) 14.2.0'
* checking installed package size ... INFO
  installed size is  7.5Mb
  sub-directories of 1Mb or more:
    doc     1.1Mb
    libs    1.2Mb
    po      1.7Mb
    tests   2.2Mb
* 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 code files for non-ASCII characters ... OK
* checking R files for syntax errors ... WARNING
Warning in Sys.setlocale("LC_CTYPE", "en_US.UTF-8") :
  OS reports request to set locale to "en_US.UTF-8" cannot be honored
* 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 whether startup messages can be suppressed ... 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 ... OK
* checking Rd files ... OK
* checking Rd metadata ... OK
* checking Rd cross-references ... INFO
Packages unavailable to check Rd xrefs: 'bit64', 'yaml'
* 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 line endings in shell scripts ... 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 ... NOTE
File 'data.table/libs/data_table.so':
  Found non-API calls to R: 'IS_GROWABLE', 'LEVELS', 'SETLENGTH',
    'SET_GROWABLE_BIT', 'SET_TRUELENGTH', 'TRUELENGTH', 'XTRUELENGTH'

Compiled code should not call non-API entry points in R.

See 'Writing portable packages' in the 'Writing R Extensions' manual,
and section 'Moving into C API compliance' for issues with the use of
non-API entry points.
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... SKIPPED
* checking examples ... OK
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... OK
  Running 'S4.R'
  Running 'autoprint.R'
  Comparing 'autoprint.Rout' to 'autoprint.Rout.save' ... OK
  Running 'froll.R'
  Running 'litedown.R'
  Running 'main.R'
  Running 'mergelist.R'
  Running 'nafill.R'
  Running 'optimize.R'
  Running 'other.R'
  Running 'programming.R'
  Running 'types.R'
* DONE
Status: 1 WARNING, 1 NOTE