* using log directory ‘/home/jranke/git/mkin/mkin.Rcheck’
* using R version 3.4.0 (2017-04-21)
* using platform: x86_64-pc-linux-gnu (64-bit)
* using session charset: UTF-8
* using options ‘--no-tests --as-cran’
* checking for file ‘mkin/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘mkin’ version ‘0.9.45.2’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... NOTE
Maintainer: ‘Johannes Ranke <jranke@uni-bremen.de>’

Found the following (possibly) invalid URLs:
  URL: http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics
    From: man/twa.Rd
    Status: 500
    Message: Internal Server Error
  URL: http://focus.jrc.ec.europa.eu/dk
    From: inst/doc/mkin.html
          inst/doc/twa.html
          README.md
    Status: 404
    Message: Not Found
* 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 whether package ‘mkin’ can be installed ... OK
* checking installed package size ... NOTE
  installed size is  5.4Mb
  sub-directories of 1Mb or more:
    doc   5.1Mb
* 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 R files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking loading without being on the library search path ... 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 ... OK
* checking Rd files ... 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 contents of ‘data’ directory ... OK
* checking data for non-ASCII characters ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking sizes of PDF files under ‘inst/doc’ ... OK
* checking installed files from ‘inst/doc’ ... OK
* checking files in ‘vignettes’ ... OK
* checking examples ... OK
* checking for unstated dependencies in ‘tests’ ... OK
* checking tests ... SKIPPED
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes in ‘inst/doc’ ... OK
* checking re-building of vignette outputs ...