Internal Compiler Error when trying to install

[JarredAllen]

I get this message when trying to install this, following the instructions on the README:

brew install gcc-8-musl-cross                                                             (3 results) [1343/1800]
==> Installing gcc-8-musl-cross from marioschwalbe/gcc-musl-cross                                                            
==> Downloading https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.4.10.tar.xz                                             
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/398d7b1a67ebf5f658f5f31f2d57a936f9161716fed598d400290556e
8049d42--linux-4.4.10.tar.xz                                                                                                 
==> Downloading https://ftp.gnu.org/gnu/binutils/binutils-2.32.tar.bz2                                                       
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/11427836685cd679e0a25f5ba239b97c612e1668b5ccb228408e7376e
0a8a344--binutils-2.32.tar.bz2                                                                                               
==> Downloading https://ftp.gnu.org/gnu/gcc/gcc-8.3.0/gcc-8.3.0.tar.xz                                                       
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/790ecda70af93e36763edcb183a8d4e91e433bee9bad9a60360addae9
d8e82be--gcc-8.3.0.tar.xz                                                                                                    
==> Downloading https://www.musl-libc.org/releases/musl-1.1.24.tar.gz                                                        
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/39251178a992dec0629c739dce14428bd27a256f272c76d17f6525751
b512ada--musl-1.1.24.tar.gz                                                                                                  
==> Downloading https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=3d5db9ebe860                  
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/53c623e9fd9ebac8516b8d880b2a1f0e9c9ef2aa08be18ec30d173ba4
ca7d1f2--config.sub                                                                                                          
==> Downloading https://github.com/richfelker/musl-cross-make/archive/v0.9.8.tar.gz                                          
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/b1fb6145694b3f03e6d4bab7953ade2a909be7407f0819f78d892d3dc
d3f81e8--musl-cross-make-0.9.8.tar.gz                                                                                        
==> Downloading https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.4.10.tar.xz                                             
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/398d7b1a67ebf5f658f5f31f2d57a936f9161716fed598d400290556e
8049d42--linux-4.4.10.tar.xz                                                                                                 
==> Downloading https://ftp.gnu.org/gnu/binutils/binutils-2.32.tar.bz2                                                       
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/11427836685cd679e0a25f5ba239b97c612e1668b5ccb228408e7376e
0a8a344--binutils-2.32.tar.bz2                                                                                               
==> Downloading https://ftp.gnu.org/gnu/gcc/gcc-8.3.0/gcc-8.3.0.tar.xz                                                       
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/790ecda70af93e36763edcb183a8d4e91e433bee9bad9a60360addae9
d8e82be--gcc-8.3.0.tar.xz                                                                                                    
==> Downloading https://www.musl-libc.org/releases/musl-1.1.24.tar.gz                                                        
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/39251178a992dec0629c739dce14428bd27a256f272c76d17f6525751
b512ada--musl-1.1.24.tar.gz                                                                                                  
==> Downloading https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=3d5db9ebe860                  
Already downloaded: /Users/jarred/Library/Caches/Homebrew/downloads/53c623e9fd9ebac8516b8d880b2a1f0e9c9ef2aa08be18ec30d173ba4
ca7d1f2--config.sub                                                                                                          
==> /opt/homebrew/opt/make/bin/gmake TARGET=x86_64-linux-musl install                                                        
Last 15 lines from /Users/jarred/Library/Logs/Homebrew/gcc-8-musl-cross/01.gmake:                                            
echo timestamp > stmp-int-hdrs                                                                                               
/private/tmp/gcc-8-musl-cross-20210701-42876-abfa7j/musl-cross-make-0.9.8/build/local/x86_64-linux-musl/obj_gcc/./gcc/xgcc -B
/private/tmp/gcc-8-musl-cross-20210701-42876-abfa7j/musl-cross-make-0.9.8/build/local/x86_64-linux-musl/obj_gcc/./gcc/ -xc -n
ostdinc /dev/null -S -o /dev/null -fself-test=../../src_gcc/gcc/testsuite/selftests                                          
/dev/null:1: internal compiler error: in darwin_gt_pch_use_address, at config/host-darwin.c:51                               
libbacktrace could not find executable to open                                                                               
Please submit a full bug report,                                                                                             
with preprocessed source if appropriate.                                                                                     
See <https://github.com/MarioSchwalbe/gcc-musl-cross/issues> for instructions.                                               
gmake[3]: *** [Makefile:1976: s-selftest-c] Error 1                                                                          
rm gcc.pod                                                                                                                   
gmake[3]: Leaving directory '/private/tmp/gcc-8-musl-cross-20210701-42876-abfa7j/musl-cross-make-0.9.8/build/local/x86_64-lin
ux-musl/obj_gcc/gcc'                                                                                                         
gmake[2]: *** [Makefile:4298: all-gcc] Error 2                                                                               
gmake[2]: Leaving directory '/private/tmp/gcc-8-musl-cross-20210701-42876-abfa7j/musl-cross-make-0.9.8/build/local/x86_64-lin
ux-musl/obj_gcc'                                                                                                             
gmake[1]: *** [Makefile:211: obj_gcc/gcc/.lc_built] Error 2                                                                  
gmake[1]: Leaving directory '/private/tmp/gcc-8-musl-cross-20210701-42876-abfa7j/musl-cross-make-0.9.8/build/local/x86_64-lin
ux-musl'
gmake: *** [Makefile:168: install] Error 2

Do not report this issue to Homebrew/brew or Homebrew/core!

I'm running on an M1 Mac, with version 3.2.0 of Homebrew, if that info is helpful.