[…]
cp: cannot create regular file
'/tmp/guix-build-mercury-minimal-20.06.drv-0/mercury-srcdist-20.06/install_grade_dir.asm_fast.gc/boehm_gc/thread_local_alloc.c':
Permission denied
cp: cannot create regular file
'/tmp/guix-build-mercury-minimal-20.06.drv-0/mercury-srcdist-20.06/install_grade_dir.asm_fast.gc/boehm_gc/typd_mlc.c':
Permission denied
cp: cannot create regular file
'/tmp/guix-build-mercury-minimal-20.06.drv-0/mercury-srcdist-20.06/install_grade_dir.asm_fast.gc/boehm_gc/win32_threads.c':
Permission denied
make[2]: Entering directory
'/tmp/guix-build-mercury-minimal-20.06.drv-0/mercury-srcdist-20.06/install_grade_dir.asm_fast.gc/boehm_gc'
cp Makefile.direct Makefile
cp: cannot create regular file 'Makefile': Permission denied
make[2]: ***
[/tmp/guix-build-mercury-minimal-20.06.drv-0/mmake.SW2BFY:861:
Makefile] Error 1
make[2]: Leaving directory
'/tmp/guix-build-mercury-minimal-20.06.drv-0/mercury-srcdist-20.06/install_grade_dir.asm_fast.gc/boehm_gc'
To clean up from failed install, remove
/tmp/guix-build-mercury-minimal-20.06.drv-0/mercury-srcdist-20.06/install_grade_dir.asm_fast.gc
make[1]: ***
[/tmp/guix-build-mercury-minimal-20.06.drv-0/mmake.x8C0kk:1457:
install_grades] Error 1
make[1]: Leaving directory
'/tmp/guix-build-mercury-minimal-20.06.drv-0/mercury-srcdist-20.06'
make: *** [Makefile:34: install] Error 2
command "make" "install" failed with status 2