HOSTS="x86_64-linux-gnu" contrib/guix/guix-build
...
guix shell: error: while setting up the build environment: cannot set armhf-linux personality: Invalid argument

$ HOSTS="x86_64-linux-gnu" contrib/guix/guix-build
Checking that we can connect to the guix-daemon...

Hint: If this hangs, you may want to try turning your guix-daemon off and on
      again.

make: Entering directory '/home/sjors/bitcoin/depends'
make[1]: Entering directory '/home/sjors/bitcoin/depends'
make[1]: Leaving directory '/home/sjors/bitcoin/depends'
make: Leaving directory '/home/sjors/bitcoin/depends'
INFO: Building fed41b75fbfa for platform triple x86_64-linux-gnu:
      ...using reference timestamp: 1749642062
      ...running at most 10 jobs
      ...from worktree directory: '/home/sjors/bitcoin'
          ...bind-mounted in container to: '/bitcoin'
      ...in build directory: '/home/sjors/bitcoin/guix-build-fed41b75fbfa/distsrc-fed41b75fbfa-x86_64-linux-gnu'
          ...bind-mounted in container to: '/distsrc-base/distsrc-fed41b75fbfa-x86_64-linux-gnu'
      ...outputting in: '/home/sjors/bitcoin/guix-build-fed41b75fbfa/output/x86_64-linux-gnu'
          ...bind-mounted in container to: '/outdir-base/x86_64-linux-gnu'
      ADDITIONAL FLAGS (if set)
          ADDITIONAL_GUIX_COMMON_FLAGS: --max-jobs=4 --no-substitutes
          ADDITIONAL_GUIX_ENVIRONMENT_FLAGS:
          ADDITIONAL_GUIX_TIMEMACHINE_FLAGS:
The following derivations will be built:
  /gnu/store/5kpjfn7qg25c4w1q3cczl565x0yi8mpb-python-lief-0.16.6.drv
  /gnu/store/04dcmhmlhgj2pgnyspb88lm5j9rwbd60-python-typing-extensions-4.9.0.drv
  /gnu/store/nd7dcikf5dnq113cxmb1r4w0q8ijs1qq-typing_extensions-4.9.0.tar.gz.drv
  /gnu/store/25adw1ck5fvbgvrx405c0l6kjag49j9z-python-importlib-metadata-5.2.0.drv
...
  /gnu/store/c985sj9mqmk3qvsd55b0g11hlv26krbk-msgpack-1.0.4.tar.gz.drv
  /gnu/store/x8vm49yz0k8wm3w2hgishy5q1svkcfaw-python-pymongo-4.1.1.drv
  /gnu/store/6dv3fazv5hnhwvgfnnykm0f2lwnajgsq-pymongo-4.1.1.tar.gz.drv

building /gnu/store/ck789yrq1xslycd986zdh5fq8dknl3r3-rust-actix-derive-0.5.0.tar.gz.drv...
building /gnu/store/2xasv0pcv8gw6lafag6bkjfqkmlbj02f-rust-actix-http-1.0.1.tar.gz.drv...
building /gnu/store/qifi4hb8hjm6bk6nv4664fyw7cb25fgp-rust-actix-http-2.2.0.tar.gz.drv...
building /gnu/store/gm8l3rn479p9hf3zs1vj9pzchvcj42f8-rust-actix-macros-0.1.3.tar.gz.drv...
The following builds are still in progress:
  /gnu/store/qifi4hb8hjm6bk6nv4664fyw7cb25fgp-rust-actix-http-2.2.0.tar.gz.drv
  /gnu/store/ck789yrq1xslycd986zdh5fq8dknl3r3-rust-actix-derive-0.5.0.tar.gz.drv

building /gnu/store/grpq0sq301rwsz6h4vbdx9sgvi64wai4-Python-2.7.18.tar.xz.drv...
The following builds are still in progress:
  /gnu/store/grpq0sq301rwsz6h4vbdx9sgvi64wai4-Python-2.7.18.tar.xz.drv
  /gnu/store/qifi4hb8hjm6bk6nv4664fyw7cb25fgp-rust-actix-http-2.2.0.tar.gz.drv

The following builds are still in progress:
  /gnu/store/grpq0sq301rwsz6h4vbdx9sgvi64wai4-Python-2.7.18.tar.xz.drv
  /gnu/store/qifi4hb8hjm6bk6nv4664fyw7cb25fgp-rust-actix-http-2.2.0.tar.gz.drv

building /gnu/store/sf5wwnpy8mr9l8iic2xz5bmg3bppjrj9-asynctest-0.13.0.tar.gz.drv...
building /gnu/store/hiqwnz4mhiad1zcqyf250b1ws0s36djc-attrs-21.2.0.tar.gz.drv...
The following builds are still in progress:
  /gnu/store/hiqwnz4mhiad1zcqyf250b1ws0s36djc-attrs-21.2.0.tar.gz.drv
  /gnu/store/sf5wwnpy8mr9l8iic2xz5bmg3bppjrj9-asynctest-0.13.0.tar.gz.drv
  /gnu/store/grpq0sq301rwsz6h4vbdx9sgvi64wai4-Python-2.7.18.tar.xz.drv

note: keeping build directory `/tmp/guix-build-Python-2.7.18.tar.xz.drv-2'
note: keeping build directory `/tmp/guix-build-bash.drv-2'
note: keeping build directory `/tmp/guix-build-asynctest-0.13.0.tar.gz.drv-2'
note: keeping build directory `/tmp/guix-build-attrs-21.2.0.tar.gz.drv-2'
guix shell: error: while setting up the build environment: cannot set armhf-linux personality: Invalid argument