qemu-i486 no longer exists, but qemu-binfmt thinks it does

[elaexuotee]

Hey Guix,

Just for fun, I tried putting the following in my services:

    (service qemu-bitfmt-service-type
      (qemu-bitfmt-configuration (platforms %qemu-platforms)))

However, after reconfiguration, shepherd fails to start qemu-binfmt:

    $ sudo herd start qemu-binfmt
    herd: exception caught while executing 'start' on service 'qemu-binfmt'
    fport_write: No such file or directory

That message is not particularly helpful, but

    $ grep binfmt_misc /var/log/messages
    Apr 25 19:35:14 localhost vmunix: [ 2052.220124] binfmt_misc: register: 
failed to install interpreter file 
/gnu/store/3l74cx3dgr61kj0q8padb9ayn0dai45b-qemu-5.2.0-static/bin/qemu-i486

Indeed, it looks like the qemu-i486 binary isn't in the qemu output at all. Any
idea what happened to it?