• using R version 4.4.3 (2025-02-28 ucrt)
• using platform: x86_64-w64-mingw32
• R was compiled by     gcc.exe (GCC) 13.3.0     GNU Fortran (GCC) 13.3.0
• 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 See the install log for details.
• 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 ... [12s] 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 ... [1s] 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 ... [6s] 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 ... [16s] OK
• checking HTML version of manual ... [0s] OK
• DONE

Status: 1 ERROR, 2 WARNINGs, 4 NOTEs