make[2]: Entering directory '/build/ghc-testsuite-aQCWDq/ghc-testsuite-8.4.4/testsuite-run'
"/usr/bin/ghc" --make -o mk/ghc-config mk/ghc-config.hs
[1 of 1] Compiling Main             ( mk/ghc-config.hs, mk/ghc-config.o )
Linking mk/ghc-config ...
./mk/ghc-config "/usr/bin/ghc" >"mk/ghcconfig_usr_bin_ghc.mk"; if [ $? != 0 ]; then rm -f "mk/ghcconfig_usr_bin_ghc.mk"; exit 1; fi
make -C ./tests all
make[3]: Entering directory '/build/ghc-testsuite-aQCWDq/ghc-testsuite-8.4.4/testsuite-run/tests'
Looks like you don't have timeout, building it first...
make -C ../timeout all
make[4]: Entering directory '/build/ghc-testsuite-aQCWDq/ghc-testsuite-8.4.4/testsuite-run/timeout'
rm -f -f TimeMe.o TimeMe.hi TimeMe TimeMe.exe
python3 calibrate '' > calibrate.out
/bin/sh: 1: python3: not found
make[4]: *** [Makefile:54: calibrate.out] Error 127
make[4]: Leaving directory '/build/ghc-testsuite-aQCWDq/ghc-testsuite-8.4.4/testsuite-run/timeout'
make[3]: *** [../mk/test.mk:297: ../timeout/install-inplace/bin/timeout] Error 2
make[3]: Leaving directory '/build/ghc-testsuite-aQCWDq/ghc-testsuite-8.4.4/testsuite-run/tests'
make[2]: *** [Makefile:20: all] Error 2
make[2]: Leaving directory '/build/ghc-testsuite-aQCWDq/ghc-testsuite-8.4.4/testsuite-run'
