* using log directory ‘/srv/hornik/tmp/CRAN_pretest/DiceView.Rcheck’
* using R Under development (unstable) (2025-06-12 r88305)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 19.1.7 (3)
    Debian flang-new version 19.1.7 (3)
* running under: Debian GNU/Linux 13 (trixie)
* using session charset: UTF-8
* checking for file ‘DiceView/DESCRIPTION’ ... OK
* this is package ‘DiceView’ version ‘3.1-3’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [4s/6s] OK
* checking package namespace information ... OK
* checking package dependencies ... OK
* 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 serialization versions ... OK
* checking whether package ‘DiceView’ can be installed ... [3s/3s] OK
* checking package directory ... OK
* checking for future file timestamps ... 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 ... OK
* checking whether the package can be loaded ... [0s/0s] OK
* checking whether the package can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the package can be unloaded cleanly ... [0s/0s] OK
* checking whether the namespace can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the namespace can be unloaded cleanly ... [0s/0s] OK
* checking loading without being on the library search path ... [0s/0s] OK
* checking use of S3 registration ... 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 ... [7s/7s] OK
* checking Rd files ... [0s/0s] OK
* checking Rd metadata ... OK
* checking Rd line widths ... OK
* checking Rd cross-references ... OK
* 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 examples ... [2s/2s] ERROR
Running examples in ‘DiceView-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: plot2d_mesh
> ### Title: Plot a two dimensional mesh
> ### Aliases: plot2d_mesh
> 
> ### ** Examples
> 
> plot2d_mesh(mesh_exsets(f = function(x) sin(pi*x[1])*sin(pi*x[2]),
+                         threshold=0,sign=1, mesh.type="unif",mesh.size=11,
+                         intervals = matrix(c(1/2,5/2,1/2,5/2),nrow=2)))
Error in .check_ncores(cores) : 32 simultaneous processes spawned
Calls: plot2d_mesh ... roots_mesh -> do.call -> <Anonymous> -> .check_ncores
Execution halted
* checking PDF version of manual ... [4s/4s] OK
* checking HTML version of manual ... [1s/1s] OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* DONE
Status: 1 ERROR