* using log directory 'd:/Rcompile/CRANpkg/local/4.5/madgrad.Rcheck'
* using R version 4.5.1 (2025-06-13 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 14.2.0
    GNU Fortran (GCC) 14.2.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'madgrad/DESCRIPTION' ... OK
* this is package 'madgrad' version '0.1.0'
* package encoding: UTF-8
* 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 hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'madgrad' can be installed ... OK
* checking installed package size ... OK
* 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 ... OK
* checking whether the package can be loaded ... [0s] OK
* checking whether the package can be loaded with stated dependencies ... [0s] OK
* checking whether the package can be unloaded cleanly ... [0s] OK
* checking whether the namespace can be loaded with stated dependencies ... [0s] OK
* checking whether the namespace can be unloaded cleanly ... [0s] OK
* checking loading without being on the library search path ... [0s] OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... NOTE
Warning: Torch libraries are installed but loading them caused a segfault.
Please reinstall torch with `install_torch(reinstall = TRUE)`
You can disable this check by setting `TORCH_VERIFY_LOAD` to "FALSE"
! callr subprocess failed: could not start R, exited with non-zero status, has
crashed or was killed
* checking S3 generic/method consistency ... WARNING
Warning: Torch libraries are installed but loading them caused a segfault.
Please reinstall torch with `install_torch(reinstall = TRUE)`
You can disable this check by setting `TORCH_VERIFY_LOAD` to "FALSE"
! callr subprocess failed: could not start R, exited with non-zero status, has
crashed or was killed
See section 'Generic functions and methods' in the 'Writing R
Extensions' manual.
* checking replacement functions ... OK
* checking foreign function calls ... NOTE
Warning: Torch libraries are installed but loading them caused a segfault.
Please reinstall torch with `install_torch(reinstall = TRUE)`
You can disable this check by setting `TORCH_VERIFY_LOAD` to "FALSE"
! callr subprocess failed: could not start R, exited with non-zero status, has
crashed or was killed
See chapter 'System and foreign language interfaces' in the 'Writing R
Extensions' manual.
* checking R code for possible problems ... [9s] NOTE
Warning: Torch libraries are installed but loading them caused a segfault.
Please reinstall torch with `install_torch(reinstall = TRUE)`
You can disable this check by setting `TORCH_VERIFY_LOAD` to "FALSE"
! callr subprocess failed: could not start R, exited with non-zero status, has
crashed or was killed
* checking Rd files ... [0s] OK
* checking Rd metadata ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... WARNING
Warning: Torch libraries are installed but loading them caused a segfault.
Please reinstall torch with `install_torch(reinstall = TRUE)`
You can disable this check by setting `TORCH_VERIFY_LOAD` to "FALSE"
! callr subprocess failed: could not start R, exited with non-zero status, has
crashed or was killed
* checking Rd \usage sections ... NOTE
Warning: Torch libraries are installed but loading them caused a segfault.
Please reinstall torch with `install_torch(reinstall = TRUE)`
You can disable this check by setting `TORCH_VERIFY_LOAD` to "FALSE"
! callr subprocess failed: could not start R, exited with non-zero status, has
crashed or was killed
The \usage entries for S3 methods should use the \method markup and not
their full name.
See chapter 'Writing R documentation files' in the 'Writing R
Extensions' manual.
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking examples ... [4s] ERROR
Running examples in 'madgrad-Ex.R' failed
The error most likely occurred in:

> ### Name: optim_madgrad
> ### Title: A Momentumized, Adaptive, Dual Averaged Gradient Method for
> ###   Stochastic Optimization.
> ### Aliases: optim_madgrad
> 
> ### ** Examples
> 
> if (torch::torch_is_installed()) {
+ library(torch)
+ x <- torch_randn(1, requires_grad = TRUE)
+ opt <- optim_madgrad(x)
+ for (i in 1:100) {
+   opt$zero_grad()
+   y <- x^2
+   y$backward()
+   opt$step()
+ }
+ all.equal(x$item(), 0, tolerance = 1e-9)
+ }
Warning: Torch libraries are installed but loading them caused a segfault.
Please reinstall torch with `install_torch(reinstall = TRUE)`
You can disable this check by setting `TORCH_VERIFY_LOAD` to "FALSE"
! callr subprocess failed: could not start R, exited with non-zero status, has
crashed or was killed
Error in (function (size, options)  : 
  Lantern is not loaded. Please use `install_torch()` to install additional dependencies.
Calls: torch_randn ... call_c_function -> do_call -> do.call -> <Anonymous>
Execution halted
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [1s] OK
  Running 'testthat.R' [1s]
* checking PDF version of manual ... [20s] OK
* checking HTML version of manual ... [1s] OK
* DONE
Status: 1 ERROR, 2 WARNINGs, 4 NOTEs