substitute: guix substitute: warning: ACL for archive imports seems to be uninitialized, substitutes may be unavailable
substitute: guix substitute: warning: authentication and authorization of substitutes disabled!
waiting for locks or build slots...
Backtrace:
           8 (primitive-load-path "tests/derivations.scm")
In ice-9/eval.scm:
   626:19  7 (_ #<directory (test-derivations) 7f2207c666e0>)
   293:34  6 (_ #(#(#<directory (test-derivations) 7f2207c666e0>) #))
In ice-9/boot-9.scm:
  1736:10  5 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
   636:37  4 (thunk)
  2066:24  3 (run-with-store #<store-connection 256.99 7f21fd396a00> ?)
In guix/tests.scm:
   122:18  2 (_ _)
In guix/ui.scm:
    566:4  1 (_ system-error "copy-file" _ _ _)
In ice-9/boot-9.scm:
  1669:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1669:16: In procedure raise-exception:
In procedure copy-file: Permission denied: "/home/singpolyma/src/guix/gnu/packages/bootstrap/i686-linux/bash"