>>> host-mpfr 4.1.1 Downloading
wget --passive-ftp -nd -t 3 --no-check-certificate -O '/workdir/instance-1/output-1/build/.mpfr-4.1.1.tar.xz.lDf3fL/output' 'http://www.mpfr.org/mpfr-4.1.1/mpfr-4.1.1.tar.xz' 
Unknown option 'passive-ftp'
wget --passive-ftp -nd -t 3 --no-check-certificate -O '/workdir/instance-1/output-1/build/.mpfr-4.1.1.tar.xz.Oa5rJz/output' 'https://sources.buildroot.net/mpfr/mpfr-4.1.1.tar.xz' 
Unknown option 'passive-ftp'
wget --passive-ftp -nd -t 3 --no-check-certificate -O '/workdir/instance-1/output-1/build/.mpfr-4.1.1.tar.xz.bKPouB/output' 'https://sources.buildroot.net/mpfr-4.1.1.tar.xz' 
Unknown option 'passive-ftp'
make: *** [package/pkg-generic.mk:179: /workdir/instance-1/output-1/build/host-mpfr-4.1.1/.stamp_downloaded] Error 1
make: Leaving directory '/workdir/instance-1/buildroot'