Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Achim Zeileis <Achim.Zeileis@R-project.org>’
  
  Found the following (possibly) invalid URLs:
    URL: http://www.cambridge.org/us/academic/subjects/economics/econometrics-statistics-and-mathematical-economics/time-series-models-business-and-economic-forecasting-2nd-edition (moved to https://www.cambridge.org/us/universitypress/subjects/economics/econometrics-statistics-and-mathematical-economics/time-series-models-business-and-economic-forecasting-2nd-edition)
      From: inst/doc/AER.pdf
      Status: 301
      Message: Moved Permanently
    URL: https://lib.stat.cmu.edu/datasets/CPS_85_Wages
      From: man/CPS1985.Rd
      Status: Error
      Message: Timeout was reached [lib.stat.cmu.edu]:
        Connection timed out after 60000 milliseconds
  For content that is 'Moved Permanently', please change http to https,
  add trailing slashes, or replace the old by the new URL.

Changes to worse in reverse depends:

Package: sandwich
Check: re-building of vignette outputs
New result: NOTE
  Warning in re-building vignettes:
    From the bibliography engine:
    I didn't find a database entry for "hac:Therneau:2018"