> install.packages("rlang")
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:

https://cran.rstudio.com/bin/windows/Rtools/
Installing package into ‘C:/Users/biomiki/Documents/R/win-library/3.6’
(as ‘lib’ is unspecified)

  There is a binary version available but the source version is later:
      binary source needs_compilation
rlang 0.4.11  1.0.6              TRUE

  Binaries will be installed
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.6/rlang_0.4.11.zip'
Content type 'application/zip' length 1224139 bytes (1.2 MB)
downloaded 1.2 MB

package ‘rlang’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
	C:\Users\biomiki\AppData\Local\Temp\RtmpAFxn42\downloaded_packages