Error building lucetc-linux-x86_64

While building nightly Tor Browser for linux-x86_64 on tb-build-03, I have an error during the lucetc build:

   Compiling lucet-benchmarks v0.1.1 (/var/tmp/build/lucetc/benchmarks/lucet-benchmarks)
   Compiling lucet-idl-test v0.1.0 (/var/tmp/build/lucetc/lucet-idl/lucet-idl-test)
   Compiling lucet-idl-test-rust-host v0.1.0 (/var/tmp/build/lucetc/lucet-idl/lucet-idl-test/resources/rust_host)
   Compiling lucet-wasi-fuzz v0.1.1 (/var/tmp/build/lucetc/lucet-wasi-fuzz)
    Finished release [optimized] target(s) in 3m 31s
make -C lucet-builtins
make[1]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.
make[1]: Entering directory '/var/tmp/build/lucetc/lucet-builtins'
/var/tmp/dist/clang/bin/clang --std=gnu99 -Ofast -Wall -Werror -march=native -fPIC -I../lucet-runtime/include -c src/memcpy.c -o build/memcpy.o
error: unknown target CPU 'pentium2'
note: valid target CPU values are: nocona, core2, penryn, bonnell, atom, silvermont, slm, goldmont, goldmont-plus, tremont, nehalem, corei7, westmere, sandybridge, corei7-avx, ivybridge, core-avx-i, haswell, core-avx2, broadwell, skylake, skylake-avx512, skx, cascadelake, cooperlake, cannonlake, icelake-client, icelake-server, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3, athlon64-sse3, opteron-sse3, amdfam10, barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1, znver2, x86-64
Makefile:16: recipe for target 'build/memcpy.o' failed
make[1]: *** [build/memcpy.o] Error 1
make[1]: Leaving directory '/var/tmp/build/lucetc/lucet-builtins'
Makefile:11: recipe for target 'build' failed

However we don't have this error on the nightly builds done on tb-build-01.