Failure to fetch an archive is not, by itself, a bug. When an archive is not available, a build from source is attempted. If that fails, that is a bug that needs to be fixed.
I see that we do have a build failure for sbcl on our macOS Monterey Intel build machine:
https://build.macports.org/builders/ports-12_x86_64-builder/builds/2619/steps/install-port/logs/stdio
make-config.sh: line 233: 38205 Done echo '(lisp-implementation-type)'
38206 Killed: 9 | $SBCL_TEST_HOST
No working host Common Lisp implementation.
See ./INSTALL, the "SOURCE DISTRIBUTION" section
Command failed: SBCL_MACOSX_VERSION_MIN=12.0 CC=/usr/bin/clang CXX=/usr/bin/clang++ CPP=/usr/bin/cpp sh ./make.sh --fancy --prefix=/opt/local --xc-host="/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_sbcl/sbcl/work/sbcl-1.2.11-x86-64-darwin/src/runtime/sbcl --core /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_sbcl/sbcl/work/sbcl-1.2.11-x86-64-darwin/output/sbcl.core --disable-debugger --sysinit /dev/null --userinit /dev/null"
You didn't attach your main.log file so we don't know if this is the same problem you encountered, but it is certainly a place to start.
