• using R version 4.0.0 alpha (2020-04-01 r78130)
• using platform: x86_64-apple-darwin17.0 (64-bit)
• using session charset: UTF-8
• checking for file ‘tigger/DESCRIPTION’ ... OK
• checking extension type ... Package
• this is package ‘tigger’ version ‘0.4.0’
• 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 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 ‘tigger’ can be installed ... [15s/21s] 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 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 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 ... [7s/9s] OK
• checking Rd files ... 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 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 ... [17s/25s] OK
• checking for unstated dependencies in vignettes ... OK
• checking package vignettes in ‘inst/doc’ ... OK
• checking running R code from vignettes ... [0s/1s] NONE
    ‘Tigger-Vignette.Rmd’ using ‘UTF-8’... [0s/1s] OK
• checking re-building of vignette outputs ... [31s/43s] WARNING
  Error(s) in re-building vignettes:
  --- re-building ‘Tigger-Vignette.Rmd’ using rmarkdown
  Loading required package: ggplot2
  
  Attaching package: 'dplyr'
  
  The following objects are masked from 'package:stats':
  
      filter, lag
  
  The following objects are masked from 'package:base':
  
      intersect, setdiff, setequal, union
  
  Warning: unnest() has a new interface. See ?unnest for details.
  Try `df %>% unnest(c(ALLELES, COUNTS))`, with `mutate()` if needed
  dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
    Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
    Expected in: /usr/lib/libSystem.B.dylib
  
  dyld: Symbol not found: ____chkstk_darwin
    Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
    Expected in: /usr/lib/libSystem.B.dylib
  
  Error: processing vignette 'Tigger-Vignette.Rmd' failed with diagnostics:
  pandoc document conversion failed with error 6
  --- failed re-building ‘Tigger-Vignette.Rmd’
  
  SUMMARY: processing the following file failed:
    ‘Tigger-Vignette.Rmd’
  
  Error: Vignette re-building failed.
  Execution halted
  
• checking PDF version of manual ... OK
• DONE
  Status: 1 WARNING