[R-SIG-Mac] CRAN metadata inconsistencies for macOS binaries

[Gábor Csárdi]

This has been happening recently for newly published packages. The new
binary is built, the old one is removed, but the metadata is not
updated yet, at least not on the main CRAN server.

❯ install.packages("proxy", repos = "https://cran.r-project.org")
Installing package into ‘/Users/gaborcsardi/Library/R/arm64/4.5/library’
(as ‘lib’ is unspecified)
trying URL 'https://cran.r-project.org/bin/macosx/big-sur-arm64/contrib/4.5/proxy_0.4-27.tgz'
Error in download.file(urls, destfiles, "libcurl", mode = "wb", ...) :
  cannot open URL
'https://cran.r-project.org/bin/macosx/big-sur-arm64/contrib/4.5/proxy_0.4-27.tgz'
In addition: Warning message:
In download.file(urls, destfiles, "libcurl", mode = "wb", ...) :
  cannot open URL
'https://cran.r-project.org/bin/macosx/big-sur-arm64/contrib/4.5/proxy_0.4-27.tgz':
HTTP status was '404 Not Found'
Warning in download.packages(pkgs, destdir = tmpd, available = available,  :
  download of package ‘proxy’ failed