[builder@de72116c7fc3 ~]$ curl https://nixos.org/nix/install | bash
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2354  100  2354    0     0   2941      0 --:--:-- --:--:-- --:--:--  3194
downloading Nix 1.11.4 binary tarball for i686-linux from 'https://nixos.org/releases/nix/nix-1.11.4/nix-1.11.4-i686-linux.tar.bz2' to '/tmp/nix-binary-tarball-unpack.ZBxiUtQt93'...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 27.1M  100 27.1M    0     0  1859k      0  0:00:14  0:00:14 --:--:-- 2100k
performing a single-user installation of Nix...
copying Nix to /nix/store................................
initialising Nix database...
creating /var/lib/builder/.nix-profile
getcontext failed: Use another register retrieval method?
/tmp/nix-binary-tarball-unpack.ZBxiUtQt93/unpack/nix-1.11.4-i686-linux/install: line 73:   171 Aborted                 $nix/bin/nix-env -i "$nix"
/tmp/nix-binary-tarball-unpack.ZBxiUtQt93/unpack/nix-1.11.4-i686-linux/install: unable to install Nix into your default profile