++ mktemp -d
+ checkout=/tmp/tmp.xpi1RC9mS1
+ trap 'rm -rf "$checkout"' EXIT
+ cp -R /var/lib/ci-tron/sources/cfcfe4c202600c31/. /tmp/tmp.xpi1RC9mS1
+ cd /tmp/tmp.xpi1RC9mS1
+ nix develop --command odin build . -out:term
GC Warning: Could not open /proc/stat
+ rm -rf /tmp/tmp.xpi1RC9mS1