store: Rename '&nix-error' to '&store-error'.

* guix/store.scm (&nix-error): Rename to...
(&store-error): ... this, and adjust users.
(&nix-connection-error): Rename to...
(&store-connection-error): ... this, and adjust users.
(&nix-protocol-error): Rename to...
(&store-protocol-error): ... this, adjust users.
(&nix-error, &nix-connection-error, &nix-protocol-error): Define these
condition types and their getters as deprecrated aliases.
* build-aux/run-system-tests.scm, guix/derivations.scm,
guix/grafts.scm, guix/scripts/challenge.scm,
guix/scripts/graph.scm, guix/scripts/lint.scm,
guix/scripts/offload.scm, guix/serialization.scm,
guix/ssh.scm, guix/tests.scm, guix/ui.scm,
tests/derivations.scm, tests/gexp.scm, tests/guix-daemon.sh,
tests/packages.scm, tests/store.scm, doc/guix.texi: Adjust to use the
new names.

18 files changed, 123 insertions, 98 deletions

diff --git a/build-aux/run-system-tests.scm b/build-aux/run-system-tests.scm
index bcd7547704..fd1f6653af 100644
--- a/build-aux/run-system-tests.scm
+++ b/build-aux/run-system-tests.scm
@@ -30,7 +30,7 @@
 
 (define (built-derivations* drv)
   (lambda (store)
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                (values #f store)))
       (values (build-derivations store drv) store))))
 
diff --git a/doc/guix.texi b/doc/guix.texi
index 245a18bc70..e70fed2f1c 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -5027,7 +5027,7 @@ Return @code{#t} when @var{path} designates a valid store item and
 invalid, for instance because it is the result of an aborted or failed
 build.)
 
-A @code{&nix-protocol-error} condition is raised if @var{path} is not
+A @code{&store-protocol-error} condition is raised if @var{path} is not
 prefixed by the store directory (@file{/gnu/store}).
 @end deffn
 
diff --git a/guix/derivations.scm b/guix/derivations.scm
index f6176a78fd..fb2fa177be 100644
--- a/guix/derivations.scm
+++ b/guix/derivations.scm
@@ -113,7 +113,7 @@
 ;;; Error conditions.
 ;;;
 
-(define-condition-type &derivation-error &nix-error
+(define-condition-type &derivation-error &store-error
   derivation-error?
   (derivation derivation-error-derivation))
 
diff --git a/guix/grafts.scm b/guix/grafts.scm
index db9c6854fd..a3e12f6efd 100644
--- a/guix/grafts.scm
+++ b/guix/grafts.scm
@@ -189,7 +189,7 @@ available."
        items)))
 
   (define (references* items)
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                ;; As a last resort, build DRV and query the references of the
                ;; build result.
 
diff --git a/guix/scripts/challenge.scm b/guix/scripts/challenge.scm
index f0693ed8df..65de42053d 100644
--- a/guix/scripts/challenge.scm
+++ b/guix/scripts/challenge.scm
@@ -109,7 +109,7 @@
   "Return the hash of ITEM, a store item, if ITEM was built locally.
 Otherwise return #f."
   (lambda (store)
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                (values #f store)))
       (if (locally-built? store item)
           (values (query-path-hash store item) store)
diff --git a/guix/scripts/graph.scm b/guix/scripts/graph.scm
index 145a574dba..8efeef3274 100644
--- a/guix/scripts/graph.scm
+++ b/guix/scripts/graph.scm
@@ -299,7 +299,7 @@ this type of graph")))))))
 information available in the local store or using information about
 substitutes."
   (lambda (store)
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                (match (substitutable-path-info store (list item))
                  ((info)
                   (values (substitutable-references info) store))
diff --git a/guix/scripts/lint.scm b/guix/scripts/lint.scm
index 665adcfb8d..ddad5b7fd0 100644
--- a/guix/scripts/lint.scm
+++ b/guix/scripts/lint.scm
@@ -833,11 +833,11 @@ descriptions maintained upstream."
   (define (try system)
     (catch #t
       (lambda ()
-        (guard (c ((nix-protocol-error? c)
+        (guard (c ((store-protocol-error? c)
                    (emit-warning package
                                  (format #f (G_ "failed to create ~a derivation: ~a")
                                          system
-                                         (nix-protocol-error-message c))))
+                                         (store-protocol-error-message c))))
                   ((message-condition? c)
                    (emit-warning package
                                  (format #f (G_ "failed to create ~a derivation: ~a")
diff --git a/guix/scripts/offload.scm b/guix/scripts/offload.scm
index 30fe69ad6d..2116b38425 100644
--- a/guix/scripts/offload.scm
+++ b/guix/scripts/offload.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -358,12 +358,12 @@ MACHINE."
   (format (current-error-port) "@ build-remote ~a ~a~%"
           (derivation-file-name drv) (build-machine-name machine))
 
-  (guard (c ((nix-protocol-error? c)
+  (guard (c ((store-protocol-error? c)
              (format (current-error-port)
                      (G_ "derivation '~a' offloaded to '~a' failed: ~a~%")
                      (derivation-file-name drv)
                      (build-machine-name machine)
-                     (nix-protocol-error-message c))
+                     (store-protocol-error-message c))
              (let* ((inferior (false-if-exception (remote-inferior session)))
                     (space (false-if-exception
                             (node-free-disk-space inferior))))
diff --git a/guix/serialization.scm b/guix/serialization.scm
index 7c0fea552d..e14b7d1b9f 100644
--- a/guix/serialization.scm
+++ b/guix/serialization.scm
@@ -59,7 +59,7 @@
 
 ;; Similar to serialize.cc in Nix.
 
-(define-condition-type &nar-error &error      ; XXX: inherit from &nix-error ?
+(define-condition-type &nar-error &error      ; XXX: inherit from &store-error ?
   nar-error?
   (file  nar-error-file)                       ; file we were restoring, or #f
   (port  nar-error-port))                      ; port from which we read
diff --git a/guix/ssh.scm b/guix/ssh.scm
index 77329618d5..2b286a67b2 100644
--- a/guix/ssh.scm
+++ b/guix/ssh.scm
@@ -328,17 +328,17 @@ Return the list of store items actually sent."
          missing)
         (('protocol-error message)
          (raise (condition
-                 (&nix-protocol-error (message message) (status 42)))))
+                 (&store-protocol-error (message message) (status 42)))))
         (('error key args ...)
          (raise (condition
-                 (&nix-protocol-error
+                 (&store-protocol-error
                   (message (call-with-output-string
                              (lambda (port)
                                (print-exception port #f key args))))
                   (status 43)))))
         (_
          (raise (condition
-                 (&nix-protocol-error
+                 (&store-protocol-error
                   (message "unknown error while sending files over SSH")
                   (status 44)))))))))
 
diff --git a/guix/store.scm b/guix/store.scm
index f8c79788b8..d079147529 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -68,6 +68,15 @@
             current-store-protocol-version        ;for internal use
             mcached
 
+            &store-error store-error?
+            &store-connection-error store-connection-error?
+            store-connection-error-file
+            store-connection-error-code
+            &store-protocol-error store-protocol-error?
+            store-protocol-error-message
+            store-protocol-error-status
+
+            ;; Deprecated forms for '&store-error' et al.
             &nix-error nix-error?
             &nix-connection-error nix-connection-error?
             nix-connection-error-file
@@ -377,34 +386,50 @@
 (define-deprecated/alias nix-server-socket store-connection-socket)
 
 
-(define-condition-type &nix-error &error
-  nix-error?)
+(define-condition-type &store-error &error
+  store-error?)
 
-(define-condition-type &nix-connection-error &nix-error
-  nix-connection-error?
-  (file   nix-connection-error-file)
-  (errno  nix-connection-error-code))
+(define-condition-type &store-connection-error &store-error
+  store-connection-error?
+  (file   store-connection-error-file)
+  (errno  store-connection-error-code))
+
+(define-condition-type &store-protocol-error &store-error
+  store-protocol-error?
+  (message store-protocol-error-message)
+  (status  store-protocol-error-status))
+
+(define-deprecated/alias &nix-error &store-error)
+(define-deprecated/alias nix-error? store-error?)
+(define-deprecated/alias &nix-connection-error &store-connection-error)
+(define-deprecated/alias nix-connection-error? store-connection-error?)
+(define-deprecated/alias nix-connection-error-file
+  store-connection-error-file)
+(define-deprecated/alias nix-connection-error-code
+  store-connection-error-code)
+(define-deprecated/alias &nix-protocol-error &store-protocol-error)
+(define-deprecated/alias nix-protocol-error? store-protocol-error?)
+(define-deprecated/alias nix-protocol-error-message
+  store-protocol-error-message)
+(define-deprecated/alias nix-protocol-error-status
+  store-protocol-error-status)
 
-(define-condition-type &nix-protocol-error &nix-error
-  nix-protocol-error?
-  (message nix-protocol-error-message)
-  (status  nix-protocol-error-status))
 
 (define-syntax-rule (system-error-to-connection-error file exp ...)
   "Catch 'system-error' exceptions and translate them to
-'&nix-connection-error'."
+'&store-connection-error'."
   (catch 'system-error
     (lambda ()
       exp ...)
     (lambda args
       (let ((errno (system-error-errno args)))
-        (raise (condition (&nix-connection-error
+        (raise (condition (&store-connection-error
                            (file file)
                            (errno errno))))))))
 
 (define (open-unix-domain-socket file)
   "Connect to the Unix-domain socket at FILE and return it.  Raise a
-'&nix-connection-error' upon error."
+'&store-connection-error' upon error."
   (let ((s (with-fluids ((%default-port-encoding #f))
              ;; This trick allows use of the `scm_c_read' optimization.
              (socket PF_UNIX SOCK_STREAM 0)))
@@ -420,7 +445,7 @@
 
 (define (open-inet-socket host port)
   "Connect to the Unix-domain socket at HOST:PORT and return it.  Raise a
-'&nix-connection-error' upon error."
+'&store-connection-error' upon error."
   (let ((sock (with-fluids ((%default-port-encoding #f))
                 ;; This trick allows use of the `scm_c_read' optimization.
                 (socket PF_UNIX SOCK_STREAM 0))))
@@ -452,7 +477,7 @@
                ;; Connection failed, so try one of the other addresses.
                (close s)
                (if (null? rest)
-                   (raise (condition (&nix-connection-error
+                   (raise (condition (&store-connection-error
                                       (file host)
                                       (errno (system-error-errno args)))))
                    (loop rest))))))))))
@@ -461,7 +486,7 @@
   "Connect to the daemon at URI, a string that may be an actual URI or a file
 name."
   (define (not-supported)
-    (raise (condition (&nix-connection-error
+    (raise (condition (&store-connection-error
                        (file uri)
                        (errno ENOTSUP)))))
 
@@ -510,8 +535,8 @@ for this connection will be pinned.  Return a server object."
              ;; One of the 'write-' or 'read-' calls below failed, but this is
              ;; really a connection error.
              (raise (condition
-                     (&nix-connection-error (file (or port uri))
-                                            (errno EPROTO))
+                     (&store-connection-error (file (or port uri))
+                                              (errno EPROTO))
                      (&message (message "build daemon handshake failed"))))))
     (let*-values (((port)
                    (or port (connect-to-daemon uri)))
@@ -689,14 +714,14 @@ encoding conversion errors."
                                   (not (eof-object? (lookahead-u8 p))))
                              (read-int p)
                              1)))
-             (raise (condition (&nix-protocol-error
+             (raise (condition (&store-protocol-error
                                 (message error)
                                 (status  status))))))
           ((= k %stderr-last)
            ;; The daemon is done (see `stopWork' in `nix-worker.cc'.)
            #t)
           (else
-           (raise (condition (&nix-protocol-error
+           (raise (condition (&store-protocol-error
                               (message "invalid error code")
                               (status   k))))))))
 
@@ -926,7 +951,7 @@ bytevector) as its internal buffer, and a thunk to flush this output port."
 invalid item may exist on disk but still be invalid, for instance because it
 is the result of an aborted or failed build.)
 
-A '&nix-protocol-error' condition is raised if PATH is not prefixed by the
+A '&store-protocol-error' condition is raised if PATH is not prefixed by the
 store directory (/gnu/store)."
   boolean)
 
@@ -1141,7 +1166,7 @@ Return #t on success."
             (build store things mode)
             (if (= mode (build-mode normal))
                 (build/old store things)
-                (raise (condition (&nix-protocol-error
+                (raise (condition (&store-protocol-error
                                    (message "unsupported build mode")
                                    (status  1))))))))))
 
@@ -1201,12 +1226,12 @@ error if there is no such root."
 (define (references/substitutes store items)
   "Return the list of list of references of ITEMS; the result has the same
 length as ITEMS.  Query substitute information for any item missing from the
-store at once.  Raise a '&nix-protocol-error' exception if reference
+store at once.  Raise a '&store-protocol-error' exception if reference
 information for one of ITEMS is missing."
   (let* ((requested  items)
          (local-refs (map (lambda (item)
                             (or (hash-ref %reference-cache item)
-                                (guard (c ((nix-protocol-error? c) #f))
+                                (guard (c ((store-protocol-error? c) #f))
                                   (references store item))))
                           items))
          (missing    (fold-right (lambda (item local-ref result)
@@ -1222,7 +1247,7 @@ information for one of ITEMS is missing."
                          '()
                          (substitutable-path-info store missing))))
     (when (< (length substs) (length missing))
-      (raise (condition (&nix-protocol-error
+      (raise (condition (&store-protocol-error
                          (message "cannot determine \
 the list of references")
                          (status 1)))))
@@ -1673,7 +1698,7 @@ where FILE is the entry's absolute file name and STAT is the result of
   "Monadic version of 'query-path-info' that returns #f when ITEM is not in
 the store."
   (lambda (store)
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                ;; ITEM is not in the store; return #f.
                (values #f store)))
       (values (query-path-info store item) store))))
diff --git a/guix/tests.scm b/guix/tests.scm
index f4948148c4..16a426c4f9 100644
--- a/guix/tests.scm
+++ b/guix/tests.scm
@@ -64,7 +64,7 @@
 
 (define* (open-connection-for-tests #:optional (uri (%daemon-socket-uri)))
   "Open a connection to the build daemon for tests purposes and return it."
-  (guard (c ((nix-error? c)
+  (guard (c ((store-error? c)
              (format (current-error-port)
                      "warning: build daemon error: ~s~%" c)
              #f))
diff --git a/guix/ui.scm b/guix/ui.scm
index 1e089753e1..9ff56ea85c 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -684,14 +684,14 @@ or remove one of them from the profile.")
                           file (or (port-filename* port) port))
                    (leave (G_ "corrupt input while restoring archive from ~s~%")
                           (or (port-filename* port) port)))))
-            ((nix-connection-error? c)
+            ((store-connection-error? c)
              (leave (G_ "failed to connect to `~a': ~a~%")
-                    (nix-connection-error-file c)
-                    (strerror (nix-connection-error-code c))))
-            ((nix-protocol-error? c)
+                    (store-connection-error-file c)
+                    (strerror (store-connection-error-code c))))
+            ((store-protocol-error? c)
              ;; FIXME: Server-provided error messages aren't i18n'd.
              (leave (G_ "build failed: ~a~%")
-                    (nix-protocol-error-message c)))
+                    (store-protocol-error-message c)))
             ((derivation-missing-output-error? c)
              (leave (G_ "reference to invalid output '~a' of derivation '~a'~%")
                     (derivation-missing-output c)
diff --git a/tests/derivations.scm b/tests/derivations.scm
index 5f294c1827..c0601c0e88 100644
--- a/tests/derivations.scm
+++ b/tests/derivations.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -185,9 +185,9 @@
       (set-build-options %store
                          #:use-substitutes? #f
                          #:keep-going? #t)
-      (guard (c ((nix-protocol-error? c)
-                 (and (= 100 (nix-protocol-error-status c))
-                      (string-contains (nix-protocol-error-message c)
+      (guard (c ((store-protocol-error? c)
+                 (and (= 100 (store-protocol-error-status c))
+                      (string-contains (store-protocol-error-message c)
                                        (derivation-file-name d1))
                       (not (valid-path? %store (derivation->output-path d1)))
                       (valid-path? %store (derivation->output-path d2)))))
@@ -222,8 +222,8 @@
 
 (test-assert "unknown built-in builder"
   (let ((drv (derivation %store "ohoh" "builtin:does-not-exist" '())))
-    (guard (c ((nix-protocol-error? c)
-               (string-contains (nix-protocol-error-message c) "failed")))
+    (guard (c ((store-protocol-error? c)
+               (string-contains (store-protocol-error-message c) "failed")))
       (build-derivations %store (list drv))
       #f)))
 
@@ -253,8 +253,8 @@
                                           . ,(object->string (%local-url))))
                             #:hash-algo 'sha256
                             #:hash (sha256 (random-bytevector 100))))) ;wrong
-      (guard (c ((nix-protocol-error? c)
-                 (string-contains (nix-protocol-error-message c) "failed")))
+      (guard (c ((store-protocol-error? c)
+                 (string-contains (store-protocol-error-message c) "failed")))
         (build-derivations %store (list drv))
         #f))))
 
@@ -268,8 +268,8 @@
                                           . ,(object->string (%local-url))))
                             #:hash-algo 'sha256
                             #:hash (sha256 (random-bytevector 100)))))
-      (guard (c ((nix-protocol-error? c)
-                 (string-contains (nix-protocol-error-message (pk c)) "failed")))
+      (guard (c ((store-protocol-error? c)
+                 (string-contains (store-protocol-error-message (pk c)) "failed")))
         (build-derivations %store (list drv))
         #f))))
 
@@ -279,8 +279,8 @@
          (drv    (derivation %store "world"
                              "builtin:download" '()
                              #:env-vars `(("url" . ,(object->string url))))))
-    (guard (c ((nix-protocol-error? c)
-               (string-contains (nix-protocol-error-message c) "failed")))
+    (guard (c ((store-protocol-error? c)
+               (string-contains (store-protocol-error-message c) "failed")))
       (build-derivations %store (list drv))
       #f)))
 
@@ -607,7 +607,7 @@
                           `("-c" ,(string-append "echo " txt "> $out"))
                           #:inputs `((,%bash) (,txt))
                           #:allowed-references '())))
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                ;; There's no specific error message to check for.
                #t))
       (build-derivations %store (list drv))
@@ -625,7 +625,7 @@
                          `("-c" ,"echo $out > $out")
                          #:inputs `((,%bash))
                          #:allowed-references '())))
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                ;; There's no specific error message to check for.
                #t))
       (build-derivations %store (list drv))
@@ -644,7 +644,7 @@
                           `("-c" ,(string-append "echo " txt "> $out"))
                           #:inputs `((,%bash) (,txt))
                           #:disallowed-references (list txt))))
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                ;; There's no specific error message to check for.
                #t))
       (build-derivations %store (list drv))
@@ -765,8 +765,8 @@
          (builder    '(begin (sleep 100) (mkdir %output) #t))
          (drv        (build-expression->derivation store "silent" builder))
          (out-path   (derivation->output-path drv)))
-    (guard (c ((nix-protocol-error? c)
-               (and (string-contains (nix-protocol-error-message c)
+    (guard (c ((store-protocol-error? c)
+               (and (string-contains (store-protocol-error-message c)
                                      "failed")
                     (not (valid-path? store out-path)))))
       (build-derivations store (list drv))
@@ -779,8 +779,8 @@
          (builder    '(begin (sleep 100) (mkdir %output) #t))
          (drv        (build-expression->derivation store "slow" builder))
          (out-path   (derivation->output-path drv)))
-    (guard (c ((nix-protocol-error? c)
-               (and (string-contains (nix-protocol-error-message c)
+    (guard (c ((store-protocol-error? c)
+               (and (string-contains (store-protocol-error-message c)
                                      "failed")
                     (not (valid-path? store out-path)))))
       (build-derivations store (list drv))
@@ -942,11 +942,11 @@
                       #f))                        ; fail!
          (drv      (build-expression->derivation %store "fail" builder))
          (out-path (derivation->output-path drv)))
-    (guard (c ((nix-protocol-error? c)
+    (guard (c ((store-protocol-error? c)
                ;; Note that the output path may exist at this point, but it
                ;; is invalid.
                (and (string-match "build .* failed"
-                                  (nix-protocol-error-message c))
+                                  (store-protocol-error-message c))
                     (not (valid-path? %store out-path)))))
       (build-derivations %store (list drv))
       #f)))
diff --git a/tests/gexp.scm b/tests/gexp.scm
index c4b437cd49..cee2c96610 100644
--- a/tests/gexp.scm
+++ b/tests/gexp.scm
@@ -919,7 +919,7 @@
                                      (chdir #$output)
                                      (symlink #$%bootstrap-guile "guile"))
                                  #:allowed-references '()))))
-    (guard (c ((nix-protocol-error? c) #t))
+    (guard (c ((store-protocol-error? c) #t))
       (build-derivations %store (list drv))
       #f)))
 
@@ -943,7 +943,7 @@
                                      (chdir #$output)
                                      (symlink #$%bootstrap-guile "guile"))
                                  #:disallowed-references (list %bootstrap-guile)))))
-    (guard (c ((nix-protocol-error? c) #t))
+    (guard (c ((store-protocol-error? c) #t))
       (build-derivations %store (list drv))
       #f)))
 
diff --git a/tests/guix-daemon.sh b/tests/guix-daemon.sh
index 9ae6e0b77a..4c19a55722 100644
--- a/tests/guix-daemon.sh
+++ b/tests/guix-daemon.sh
@@ -1,5 +1,5 @@
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2012, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2012, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 #
 # This file is part of GNU Guix.
 #
@@ -109,7 +109,7 @@ guile -c "
 
   (define (build-without-failing drv)
     (lambda (store)
-      (guard (c ((nix-protocol-error? c) (values #t store)))
+      (guard (c ((store-protocol-error? c) (values #t store)))
         (build-derivations store (list drv))
         (values #f store))))
 
@@ -177,9 +177,9 @@ client_code='
                                `("-e" ,build)
                                #:inputs `((,bash) (,build))
                                #:env-vars `(("x" . ,(random-text))))))
-      (exit (guard (c ((nix-protocol-error? c)
+      (exit (guard (c ((store-protocol-error? c)
                        (->bool
-                        (string-contains (pk (nix-protocol-error-message c))
+                        (string-contains (pk (store-protocol-error-message c))
                                          "failed"))))
               (build-derivations store (list drv))
               #f))))'
diff --git a/tests/packages.scm b/tests/packages.scm
index ed635d9011..29e5e4103c 100644
--- a/tests/packages.scm
+++ b/tests/packages.scm
@@ -570,7 +570,7 @@
                    (symlink %output (string-append %output "/self"))
                    #t)))))
          (d (package-derivation %store p)))
-    (guard (c ((nix-protocol-error? c) #t))
+    (guard (c ((store-protocol-error? c) #t))
       (build-derivations %store (list d))
       #f)))
 
diff --git a/tests/store.scm b/tests/store.scm
index 5ff9308d7d..e28c0c5aaa 100644
--- a/tests/store.scm
+++ b/tests/store.scm
@@ -63,9 +63,9 @@
 (test-equal "connection handshake error"
   EPROTO
   (let ((port (%make-void-port "rw")))
-    (guard (c ((nix-connection-error? c)
-               (and (eq? port (nix-connection-error-file c))
-                    (nix-connection-error-code c))))
+    (guard (c ((store-connection-error? c)
+               (and (eq? port (store-connection-error-file c))
+                    (store-connection-error-code c))))
       (open-connection #f #:port port)
       'broken)))
 
@@ -120,7 +120,7 @@
 
 (test-assert "valid-path? error"
   (with-store s
-    (guard (c ((nix-protocol-error? c) #t))
+    (guard (c ((store-protocol-error? c) #t))
       (valid-path? s "foo")
       #f)))
 
@@ -133,7 +133,7 @@
   (with-store s
     (let-syntax ((true-if-error (syntax-rules ()
                                   ((_ exp)
-                                   (guard (c ((nix-protocol-error? c) #t))
+                                   (guard (c ((store-protocol-error? c) #t))
                                      exp #f)))))
       (and (true-if-error (valid-path? s "foo"))
            (true-if-error (valid-path? s "bar"))
@@ -274,7 +274,7 @@
 (test-assert "references/substitutes missing reference info"
   (with-store s
     (set-build-options s #:use-substitutes? #f)
-    (guard (c ((nix-protocol-error? c) #t))
+    (guard (c ((store-protocol-error? c) #t))
       (let* ((b  (add-to-store s "bash" #t "sha256"
                                (search-bootstrap-binary "bash"
                                                         (%current-system))))
@@ -422,7 +422,7 @@
                      %store "foo" `(display ,s)
                      #:guile-for-build
                      (package-derivation s %bootstrap-guile (%current-system)))))
-            (guard (c ((nix-protocol-error? c) #t))
+            (guard (c ((store-protocol-error? c) #t))
               (build-derivations %store (list d))))))))
    "Here’s a Greek letter: λ."))
 
@@ -442,7 +442,7 @@
                        (display "lambda: λ\n"))
                      #:guile-for-build
                      (package-derivation %store %bootstrap-guile))))
-            (guard (c ((nix-protocol-error? c) #t))
+            (guard (c ((store-protocol-error? c) #t))
               (build-derivations %store (list d))))))))
    "garbage: �lambda: λ"))
 
@@ -620,12 +620,12 @@
                            #:fallback? #f
                            #:substitute-urls (%test-substitute-urls))
         (and (has-substitutes? s o)
-             (guard (c ((nix-protocol-error? c)
+             (guard (c ((store-protocol-error? c)
                         ;; XXX: the daemon writes "hash mismatch in downloaded
                         ;; path", but the actual error returned to the client
                         ;; doesn't mention that.
                         (pk 'corrupt c)
-                        (not (zero? (nix-protocol-error-status c)))))
+                        (not (zero? (store-protocol-error-status c)))))
                (build-derivations s (list d))
                #f))))))
 
@@ -646,7 +646,7 @@
         (set-build-options s #:use-substitutes? #t
                            #:substitute-urls (%test-substitute-urls))
         (and (has-substitutes? s o)
-             (guard (c ((nix-protocol-error? c)
+             (guard (c ((store-protocol-error? c)
                         ;; The substituter failed as expected.  Now make
                         ;; sure that #:fallback? #t works correctly.
                         (set-build-options s
@@ -712,9 +712,9 @@
          (dump  (call-with-bytevector-output-port
                  (cute export-paths %store (list file2) <>))))
     (delete-paths %store (list file0 file1 file2))
-    (guard (c ((nix-protocol-error? c)
-               (and (not (zero? (nix-protocol-error-status c)))
-                    (string-contains (nix-protocol-error-message c)
+    (guard (c ((store-protocol-error? c)
+               (and (not (zero? (store-protocol-error-status c)))
+                    (string-contains (store-protocol-error-message c)
                                      "not valid"))))
       ;; Here we get an exception because DUMP does not include FILE0 and
       ;; FILE1, which are dependencies of FILE2.
@@ -816,10 +816,10 @@
       (bytevector-u8-set! dump index (logxor #xff byte)))
 
     (and (not (file-exists? file))
-         (guard (c ((nix-protocol-error? c)
+         (guard (c ((store-protocol-error? c)
                     (pk 'c c)
-                    (and (not (zero? (nix-protocol-error-status c)))
-                         (string-contains (nix-protocol-error-message c)
+                    (and (not (zero? (store-protocol-error-status c)))
+                         (string-contains (store-protocol-error-message c)
                                           "corrupt"))))
            (let* ((source   (open-bytevector-input-port dump))
                   (imported (import-paths %store source)))
@@ -906,10 +906,10 @@
               (begin
                 (write (random-text) entropy-port)
                 (force-output entropy-port)
-                (guard (c ((nix-protocol-error? c)
+                (guard (c ((store-protocol-error? c)
                            (pk 'determinism-exception c)
-                           (and (not (zero? (nix-protocol-error-status c)))
-                                (string-contains (nix-protocol-error-message c)
+                           (and (not (zero? (store-protocol-error-status c)))
+                                (string-contains (store-protocol-error-message c)
                                                  "deterministic"))))
                   ;; This one will produce a different result.  Since we're in
                   ;; 'check' mode, this must fail.
@@ -945,10 +945,10 @@
                      #:guile-for-build
                      (package-derivation store %bootstrap-guile (%current-system))))
               (file (derivation->output-path drv)))
-         (guard (c ((nix-protocol-error? c)
+         (guard (c ((store-protocol-error? c)
                     (pk 'multiple-build c)
-                    (and (not (zero? (nix-protocol-error-status c)))
-                         (string-contains (nix-protocol-error-message c)
+                    (and (not (zero? (store-protocol-error-status c)))
+                         (string-contains (store-protocol-error-message c)
                                           "deterministic"))))
            ;; This one will produce a different result on the second run.
            (current-build-output-port (current-error-port))