setlocale: LC_ALL: cannot change locale (en_US.utf8)

[Josh Holland <josh@inv.alid.pw>]

Hi Guix,

I recently reinstalled Arch Linux with the Guix binary distribution on
my desktop, and since then I've had some strange error messages whenever
a Guix command is running:

/gnu/store/q19l04vd2za80mk1845pz7r8cz29qk43-bash-minimal-4.4.23/bin/bash: warning: setlocale: LC_ALL: cannot change locale (en_US.utf8)
/gnu/store/q19l04vd2za80mk1845pz7r8cz29qk43-bash-minimal-4.4.23/bin/bash: warning: setlocale: LC_ALL: cannot change locale (en_US.utf8)

I have LANG set to en_GB.UTF-8, and glibc-locales is installed with
GUIX_LOCPATH set properly:

$ ls $GUIX_LOCPATH/2.28/{en_GB.UTF-8,en_US.UTF-8}
/home/josh/.guix-profile/lib/locale/2.28/en_GB.UTF-8:
LC_ADDRESS  LC_CTYPE           LC_MEASUREMENT  LC_MONETARY  LC_NUMERIC  LC_TELEPHONE
LC_COLLATE  LC_IDENTIFICATION  LC_MESSAGES     LC_NAME      LC_PAPER    LC_TIME

/home/josh/.guix-profile/lib/locale/2.28/en_US.UTF-8:
LC_ADDRESS  LC_CTYPE           LC_MEASUREMENT  LC_MONETARY  LC_NUMERIC  LC_TELEPHONE
LC_COLLATE  LC_IDENTIFICATION  LC_MESSAGES     LC_NAME      LC_PAPER    LC_TIME

I asked in the IRC channel, and the only suggestion was to check whether that copy
of bash was indeed using glibc 2.28, which it is:

/gnu/store/q19l04vd2za80mk1845pz7r8cz29qk43-bash-minimal-4.4.23/bin/bash: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /gnu/store/h90vnqw0nwd0hhm1l5dgxsdrigddfmq4-glibc-2.28/lib/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, not stripped

I've not seen this problem on either of the two other machines I've
installed Guix on, and not before I reinstalled.  Does anybody have
any ideas?

-- 
Josh Holland