getDTthreads(verbose=TRUE):
  OpenMP version (_OPENMP)       201511
  omp_get_num_procs()            16
  R_DATATABLE_NUM_PROCS_PERCENT  unset (default 50)
  R_DATATABLE_NUM_THREADS        unset
  R_DATATABLE_THROTTLE           unset (default 1024)
  omp_get_thread_limit()         2147483647
  omp_get_max_threads()          16
  OMP_THREAD_LIMIT               unset
  OMP_NUM_THREADS                unset
  RestoreAfterFork               true
  data.table is using 8 threads with throttle==1024. See ?setDTthreads.
test.data.table() running: C:/RDevel/avraham/R/RCurrent/R-devel/library/data.table/tests/tests.Rraw.bz2 
Loading required package: data.table
data.table 1.14.6 using 8 threads (see ?getDTthreads).  Latest news: r-datatable.com

**** Suggested package bit64 is not installed. Tests using it will be skipped.


**** Suggested package R.utils is not installed. Tests using it will be skipped.

Running test id 1613.605      Test 1613.605 ran without errors but failed check that x equals y:
> x = all.equal(data.table(a = 1), try(stop("this wont work"), silent = TRUE),      check.attributes = FALSE) 
First 1 of 1 (type 'character'): 
[1] "Datasets have different column modes. First 3: a(numeric!=character)"
> y = "target is data.table but current is not and failed to be coerced to it" 
First 1 of 1 (type 'character'): 
[1] "target is data.table but current is not and failed to be coerced to it"
1 string mismatch
Running test id 2163           
Fri Jan  6 11:14:11 2023  endian==little, sizeof(long double)==16, longdouble.digits==64, sizeof(pointer)==8, TZ==unset, Sys.timezone()=='Asia/Jerusalem', Sys.getlocale()=='LC_COLLATE=English_United States.utf8;LC_CTYPE=English_United States.utf8;LC_MONETARY=English_United States.utf8;LC_NUMERIC=C;LC_TIME=English_United States.utf8', l10n_info()=='MBCS=TRUE; UTF-8=TRUE; Latin-1=FALSE; codepage=65001; system.codepage=65001', getDTthreads()=='OpenMP version (_OPENMP)==201511; omp_get_num_procs()==16; R_DATATABLE_NUM_PROCS_PERCENT==unset (default 50); R_DATATABLE_NUM_THREADS==unset; R_DATATABLE_THROTTLE==unset (default 1024); omp_get_thread_limit()==2147483647; omp_get_max_threads()==16; OMP_THREAD_LIMIT==unset; OMP_NUM_THREADS==unset; RestoreAfterFork==true; data.table is using 8 threads with throttle==1024. See ?setDTthreads.', zlibVersion()==1.2.13 ZLIB_VERSION==1.2.13
Error in data.table::test.data.table() : 
  1 error out of 9010. Search tests/tests.Rraw.bz2 for test number 1613.605.
In addition: Warning messages:
1: In Sys.setlocale("LC_CTYPE", "Chinese (Simplified)_China.936") :
  using locale code page other than 65001 ("UTF-8") may cause problems
2: In (function (category = "LC_ALL", locale = "")  :
  using locale code page other than 65001 ("UTF-8") may cause problems

R Under development (unstable) (2023-01-04 r83558 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 19044)

Matrix products: default


locale:
[1] LC_COLLATE=English_United States.utf8  LC_CTYPE=English_United States.utf8   
[3] LC_MONETARY=English_United States.utf8 LC_NUMERIC=C                          
[5] LC_TIME=English_United States.utf8    

time zone: Asia/Jerusalem
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] data.table_1.14.6

loaded via a namespace (and not attached):
[1] compiler_4.3.0 tools_4.3.0