Running ‘testthat.R’ [15s/18s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > 
  > test_check("dyngen")
  Loading required package: dyngen
  R(66414,0x7fffb5b67380) malloc: *** error for object 0x7fd5eb6152d8: incorrect checksum for freed object - object was probably modified after being freed.
  *** set a breakpoint in malloc_error_break to debug