R version 3.5.0 (2018-04-23) -- "Joy in Playing"
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Platform: x86_64-pc-linux-gnu (64-bit)

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> Sys.setenv(OMP_THREAD_LIMIT = Sys.getenv("OMP_THREAD_LIMIT", "2"))
> require(data.table)
Loading required package: data.table
> 
> test.data.table()  # runs the main test suite of 5,000+ tests in /inst/tests/tests.Rraw
getDTthreads(verbose=TRUE):
This installation of data.table has not been compiled with OpenMP support.
  omp_get_num_procs()            1
  R_DATATABLE_NUM_PROCS_PERCENT  unset (default 50)
  R_DATATABLE_NUM_THREADS        unset
  R_DATATABLE_THROTTLE           unset (default 1024)
  omp_get_thread_limit()         1
  omp_get_max_threads()          1
  OMP_THREAD_LIMIT               2
  OMP_NUM_THREADS                unset
  RestoreAfterFork               true
  data.table is using 1 threads with throttle==1024. See ?setDTthreads.
test.data.table() running: /builds/Rdatatable/data.table/data.table.Rcheck/data.table/tests/tests.Rraw

**** Full long double accuracy is not available. Tests using this will be skipped.

     NAME NROW NCOL MB COLS    KEY INDICES
1:   DF$b    2    2  0  c,d [NULL]  [NULL]
2:     DT    1    1  0    a [NULL]  [NULL]
3: L[[1]]    3    2  0  a,b [NULL]  [NULL]
4: L[[2]]    4    2  0  a,b [NULL]  [NULL]
5:    M$b    3    2  0  a,b [NULL]  [NULL]
Total: 0MB using type_size
     NAME NROW NCOL MB COLS    KEY INDICES
1:   DF$b    2    2  0  c,d [NULL]  [NULL]
2:     DT    1    1  0    a [NULL]  [NULL]
3: L[[1]]    3    2  0  a,b [NULL]  [NULL]
4: L[[2]]    4    2  0  a,b [NULL]  [NULL]
5:    M$b    3    2  0  a,b [NULL]       b
Total: 0MB using type_size
     NAME NROW NCOL MB COLS    KEY INDICES
1:   DF$b    2    2  0  c,d [NULL]  [NULL]
2:     DT    1    1  0    a [NULL]  [NULL]
3: L[[1]]    3    2  0  a,b [NULL]  [NULL]
4: L[[2]]    4    2  0  a,b [NULL]  [NULL]
5:    M$b    3    2  0  a,b      a       b
Total: 0MB using type_size
No objects of class data.table exist in <environment: 0xbcc29a0>
No objects of class data.table exist in <environment: 0xbcc29a0>
Error in nchar(x, "width", allowNA = TRUE) : 
  invalid multibyte string, element 1

Tue Jul 14 04:31:34 2026  endian==little, sizeof(long double)==16, capabilities('long.double')==TRUE, longdouble.digits==NULL, sizeof(pointer)==8, TZ=='UTC', Sys.timezone()=='UTC', Sys.getlocale()=='LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=en_US.UTF-8;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C', l10n_info()=='MBCS=TRUE; UTF-8=TRUE; Latin-1=FALSE', getDTthreads()=='This installation of data.table has not been compiled with OpenMP support.; omp_get_num_procs()==1; R_DATATABLE_NUM_PROCS_PERCENT==unset (default 50); R_DATATABLE_NUM_THREADS==unset; R_DATATABLE_THROTTLE==unset (default 1024); omp_get_thread_limit()==1; omp_get_max_threads()==1; OMP_THREAD_LIMIT==2; OMP_NUM_THREADS==unset; RestoreAfterFork==true; data.table is using 1 threads with throttle==1024. See ?setDTthreads.', .libPaths()=='/builds/Rdatatable/data.table/data.table.Rcheck','/usr/local/lib/R/library', zlibVersion()==1.2.8 ZLIB_VERSION==1.2.8
Error in test.data.table() : 
  Failed in 31.8s elapsed (31.3s cpu) after test 2366.6 before the next test() call in /builds/Rdatatable/data.table/data.table.Rcheck/data.table/tests/tests.Rraw
Calls: test.data.table -> stopf -> raise_condition -> signal
Execution halted