* using log directory ‘/srv/hornik/tmp/CRAN_pretest/lfe.Rcheck’
* using R Under development (unstable) (2024-10-14 r87233)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 18.1.8 (9)
    Debian flang-new version 18.1.8 (9)
* running under: Debian GNU/Linux trixie/sid
* using session charset: UTF-8
* checking for file ‘lfe/DESCRIPTION’ ... OK
* this is package ‘lfe’ version ‘3.1.0’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [5s/9s] NOTE
Maintainer: ‘Mauricio Vargas Sepulveda <m.sepulveda@mail.utoronto.ca>’

Found the following (possibly) invalid URLs:
  URL: https://www.sciencedirect.com/science/article/pii/S0304407615001736
    From: man/condfstat.Rd
          man/lfe-package.Rd
    Status: 403
    Message: Forbidden
  URL: https://www.ssrn.com/abstract=1734933
    From: man/condfstat.Rd
    Status: 403
    Message: Forbidden
Please use DOIs for the following publisher URLs:
  https://www.sciencedirect.com/science/article/pii/S0304407615001736
* 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 ‘lfe’ can be installed ... [4s/3s] ERROR
Installation failed.
See ‘/srv/hornik/tmp/CRAN_pretest/lfe.Rcheck/00install.out’ for details.
* DONE
Status: 1 ERROR, 1 NOTE