prepare (1/3): 
finished

make (2/3): 
make: Entering directory '/out/build/driver'
clang -std=gnu11 -O2 -o driver driver.c
driver successfully constructed
make: Leaving directory '/out/build/driver'
make: Entering directory '/out/build/mumsh'
clang -std=gnu11 -O2 -Wall -Wextra -Werror -pedantic -Wno-unused-result -o mumsh p1_copy.c
mumsh successfully constructed
make: Leaving directory '/out/build/mumsh'
finished

clean (3/3): 
mv: cannot stat 'build/mumsh/mumsh_memory_check': No such file or directory

build failed