This is on x86_64-linux, GuixSD.  Using commit
b4bf95162777b9db3c681292942895ea308e701e, running "make check
TESTS=tests/packages.scm" in an environment built by "guix environment
--pure guix" fails.  I am using "guix (GNU Guix)
e2d0cf033eb894fa8c786d0bf039fc54685d5559", which is pretty recent (1
week or so ago).

There is one failure, and it is this:

--8<---------------cut here---------------start------------->8---
test-name: package-source-derivation, snippet
location: /home/marusich/guix-wip-docker/tests/packages.scm:378
source:
+ (test-equal
+   "package-source-derivation, snippet"
+   "OK"
+   (let* ((file (search-bootstrap-binary
+                  (match (%current-system)
+                         ("armhf-linux" "guile-2.0.11.tar.xz")
+                         ("aarch64-linux" "guile-2.0.14.tar.xz")
+                         (_ "guile-2.0.9.tar.xz"))
+                  (%current-system)))
+          (sha256 (call-with-input-file file port-sha256))
+          (fetch (lambda* (url hash-algo hash #:optional name #:key system)
+                   (pk 'fetch url hash-algo hash name system)
+                   (interned-file url)))
+          (source
+            (bootstrap-origin
+              (origin
+                (method fetch)
+                (uri file)
+                (sha256 sha256)
+                (patch-inputs
+                  `(("tar" ,%bootstrap-coreutils&co)
+                    ("xz" ,%bootstrap-coreutils&co)
+                    ("patch" ,%bootstrap-coreutils&co)))
+                (patch-guile %bootstrap-guile)
+                (modules '((guix build utils)))
+                (snippet
+                  '(begin
+                     (chmod "." 511)
+                     (symlink "guile" "guile-rocks")
+                     (copy-recursively
+                       "../share/guile/2.0/scripts"
+                       "scripts")
+                     (chmod ".." 511))))))
+          (package
+            (package
+              (inherit (dummy-package "with-snippet"))
+              (source source)
+              (build-system trivial-build-system)
+              (inputs
+                `(("tar"
+                   ,(search-bootstrap-binary "tar" (%current-system)))
+                  ("xz"
+                   ,(search-bootstrap-binary "xz" (%current-system)))))
+              (arguments
+                `(#:guile
+                  ,%bootstrap-guile
+                  #:builder
+                  (let ((tar (assoc-ref %build-inputs "tar"))
+                        (xz (assoc-ref %build-inputs "xz"))
+                        (source (assoc-ref %build-inputs "source")))
+                    (and (zero? (system*
+                                  tar
+                                  "xvf"
+                                  source
+                                  "--use-compress-program"
+                                  xz))
+                         (string=? "guile" (readlink "bin/guile-rocks"))
+                         (file-exists? "bin/scripts/compile.scm")
+                         (let ((out (assoc-ref %outputs "out")))
+                           (call-with-output-file
+                             out
+                             (lambda (p) (display "OK" p))))))))))
+          (drv (package-derivation %store package))
+          (out (derivation->output-path drv)))
+     (and (build-derivations
+            %store
+            (list (pk 'snippet-drv drv)))
+          (call-with-input-file out get-string-all))))
expected-value: "OK"
actual-value: #f
actual-error:
+ (srfi-34
+   #<condition &message [message: "could not find bootstrap binary 'guile-2.0.9.tar.xz' for system 'x86_64-linux'"] 415b220>)
result: FAIL
--8<---------------cut here---------------end--------------->8---

-- 
Chris