* using log directory 'd:/Rcompile/CRANpkg/local/4.6/luz.Rcheck'
* using R Under development (unstable) (2025-08-25 r88702 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 'luz/DESCRIPTION' ... OK
* this is package 'luz' version '0.5.0'
* 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 'luz' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking 'build' 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 ... [3s] OK
* checking whether the package can be loaded with stated dependencies ... [2s] OK
* checking whether the package can be unloaded cleanly ... [2s] OK
* checking whether the namespace can be loaded with stated dependencies ... [2s] OK
* checking whether the namespace can be unloaded cleanly ... [2s] OK
* checking loading without being on the library search path ... [3s] 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 ... [9s] OK
* 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 ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... [3s] ERROR
Running examples in 'luz-Ex.R' failed
The error most likely occurred in:

> ### Name: lr_finder
> ### Title: Learning Rate Finder
> ### Aliases: lr_finder
> 
> ### ** Examples
> 
> if (torch::torch_is_installed()) {
+ library(torch)
+ ds <- torch::tensor_dataset(x = torch_randn(100, 10), y = torch_randn(100, 1))
+ dl <- torch::dataloader(ds, batch_size = 32)
+ model <- torch::nn_linear
+ model <- model %>% setup(
+   loss = torch::nn_mse_loss(),
+   optimizer = torch::optim_adam
+ ) %>%
+   set_hparams(in_features = 10, out_features = 1)
+ records <- lr_finder(model, dl, verbose = FALSE)
+ plot(records)
+ }
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [3s] OK
  Running 'testthat.R' [3s]
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [10s] ERROR
Error(s) in re-building vignettes:
--- re-building 'accelerator.Rmd' using rmarkdown
--- finished re-building 'accelerator.Rmd'

--- re-building 'custom-loop.Rmd' using rmarkdown
--- finished re-building 'custom-loop.Rmd'

--- re-building 'get-started.Rmd' using rmarkdown
SUMMARY: processing the following file failed:
  'get-started.Rmd'

Error: Vignette re-building failed.
Execution halted

* checking PDF version of manual ... [23s] OK
* checking HTML version of manual ... [9s] OK
* DONE
Status: 2 ERRORs