Found the following significant warnings:
  Warning: Fortran 2018 deleted feature: Arithmetic IF statement at (1)
  Warning: Fortran 2018 deleted feature: Shared DO termination label 5 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 5 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 25 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 50 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 60 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 80 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 90 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 210 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 240 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 250 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 260 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 270 at (1)
  Warning: Fortran 2018 deleted feature: Shared DO termination label 310 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 310 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 330 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 340 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 350 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 360 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 370 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 396 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 506 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 510 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 514 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 520 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 534 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 540 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 610 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 650 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 660 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 670 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 70 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 95 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 130 at (1)
  Warning: Fortran 2018 deleted feature: DO termination statement which is not END DO or CONTINUE with label 10 at (1)
See ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/quantreg.Rcheck/00install.out’ for details.
* used C compiler: ‘gcc-13 (Debian 13.2.0-24) 13.2.0’
* used Fortran compiler: ‘GNU Fortran (Debian 13.2.0-24) 13.2.0’