bug#45308: Unexpected fail with build transformation --with-commit

[zimoun <zimon.toutoune@gmail.com>]

Dear,

Using Guix f4450e8, the package emacs-next builds:

  $ guix build emacs-next
  /gnu/store/93hb0g731f64avayj8rdz26bz48xg2ri-emacs-next-28.0.50-0.2ea3466

and the recipe reads:

--8<---------------cut here---------------start------------->8---
(define-public emacs-next
  (let ((commit "2ea34662c20f71d35dd52a5ed996542c7386b9cb")
        (revision "0"))
    (package/inherit emacs
      (name "emacs-next")
      (version (git-version "28.0.50" revision commit))
      (source
       (origin
         (inherit (package-source emacs))
         (method git-fetch)
         (uri (git-reference
               (url "https://git.savannah.gnu.org/git/emacs.git/")
               (commit commit)))
[...]               
--8<---------------cut here---------------end--------------->8---

However, the equivalent but specifying the exact same commit fails:

--8<---------------cut here---------------start------------->8---
$ guix build emacs-next --with-commit=emacs-next=2ea34662c20f71d35dd52a5ed996542c7386b9cb

[...]

In end of data:
site-start.el:3:1: Warning: the function ‘guix-emacs-autoload-packages’ is not
    known to be defined.
Done (Total of 2 files compiled)
phase `install-site-start' succeeded after 0.1 seconds
starting phase `glib-or-gtk-wrap'
phase `glib-or-gtk-wrap' succeeded after 0.0 seconds
starting phase `strip-double-wrap'
Backtrace:
           9 (primitive-load "/gnu/store/nqja2pn6mqyqq8gpvsp8jnjaz9c…")
In ice-9/eval.scm:
   191:35  8 (_ _)
In guix/build/gnu-build-system.scm:
    838:2  7 (gnu-build #:source _ #:outputs _ #:inputs _ #:phases . #)
In ice-9/boot-9.scm:
  1736:10  6 (with-exception-handler _ _ #:unwind? _ # _)
In srfi/srfi-1.scm:
   857:16  5 (every1 #<procedure 7ffff4befc40 at guix/build/gnu-bui…> …)
In guix/build/gnu-build-system.scm:
   847:30  4 (_ _)
In ice-9/boot-9.scm:
    142:2  3 (dynamic-wind #<procedure 7ffff4ba7ca0 at ice-9/eval.s…> …)
In ice-9/eval.scm:
    619:8  2 (_ #(#(#<directory (guile-user) 7ffff5bb8f00>)))
In unknown file:
           1 (copy-file "bin/emacs-git.2ea3466" "bin/emacs")
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: No such file or directory
builder for `/gnu/store/h7s176h5d0fqjzz0ac4pdvzb7rb0dm9i-emacs-next-git.2ea3466.drv' failed with exit
code 1
build of /gnu/store/h7s176h5d0fqjzz0ac4pdvzb7rb0dm9i-emacs-next-git.2ea3466.drv failed
View build log at
'/var/log/guix/drvs/h7/s176h5d0fqjzz0ac4pdvzb7rb0dm9i-emacs-next-git.2ea3466.drv.bz2'.
guix build: error: build of `/gnu/store/h7s176h5d0fqjzz0ac4pdvzb7rb0dm9i-emacs-next-git.2ea3466.drv'
failed
--8<---------------cut here---------------end--------------->8---

Note that the items in the derivation are not ordered the same way
(which should not be, IMHO, i.e., should be sorted):

--8<---------------cut here---------------start------------->8---
Derive
([("out","/gnu/store/93hb0g731f64avayj8rdz26bz48xg2ri-emacs-next-28.0.50-0.2ea3466","","")]
 ,[("/gnu/store/09224jzfa4albcdp321czpjxf6b7s9az-librsvg-2.40.21.drv",["out"])
   ,("/gnu/store/097awwm6ypakc4hgzak3nbhhnax1kb4n-dbus-1.12.16.drv",["out"])
   ,("/gnu/store/0x7akam0zda5cyaarxjxmcrph801ldf5-glib-2.62.6.drv",["out"])

[...]

   ,("/gnu/store/z7hfbdl9xrjjx1nq6v94xwq1ivy82zn3-fontconfig-2.13.1.drv",["out"])]
 ,["/gnu/store/dqbd35sjzmj1hb4s83p6x2k65dyh28xx-emacs-next-28.0.50-0.2ea3466-guile-builder","/gnu/store/jm5y2ys7fwasip9gy6pdv0pn5nf1k49k-module-import"]
 ,"x86_64-linux","/gnu/store/2wrp7x9aclqsapm58dz5i654qds8nbb8-guile-2.0.14/bin/guile",["--no-auto-compile","-L","/gnu/store/jm5y2ys7fwasip9gy6pdv0pn5nf1k49k-module-import","/gnu/store/dqbd35sjzmj1hb4s83p6x2k65dyh28xx-emacs-next-28.0.50-0.2ea3466-guile-builder"]
 ,[("GUILE_LOAD_COMPILED_PATH","/gnu/store/57arpl064shmcfnszyi93cm6xhpkm1sr-module-import-compiled")
   ,("allowSubstitutes","0")
   ,("guix properties","((type . graft) (graft (count . 24)))")
   ,("out","/gnu/store/93hb0g731f64avayj8rdz26bz48xg2ri-emacs-next-28.0.50-0.2ea3466")
   ,("preferLocalBuild","1")])
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------start------------->8---
Derive
([("out","/gnu/store/9a8labbn5r7c6aavazvi9zhy75srxp0a-emacs-next-git.2ea3466","","")]
 ,[("/gnu/store/0914wj4m75qvn2wlxi5gw85dna6n2v7f-mesa-20.1.9.drv",["out"])
   ,("/gnu/store/09224jzfa4albcdp321czpjxf6b7s9az-librsvg-2.40.21.drv",["out"])
   ,("/gnu/store/097awwm6ypakc4hgzak3nbhhnax1kb4n-dbus-1.12.16.drv",["out"])

[...]

   ,("/gnu/store/yshx9iapfwhk90wn3c1nw5jp1hqzx09x-util-linux-2.35.1.drv",["lib"])
   ,("/gnu/store/z7hfbdl9xrjjx1nq6v94xwq1ivy82zn3-fontconfig-2.13.1.drv",["out"])]
 ,["/gnu/store/8qm8aklnh0937bvy9kpy8n7jy8nqwldj-guix-emacs.el","/gnu/store/nqja2pn6mqyqq8gpvsp8jnjaz9cb71js-emacs-next-git.2ea3466-guile-builder","/gnu/store/s48w5zmgchqp8rjl9z2bg8wb0v3j44gj--2ea3466","/gnu/store/ziqkzr6gbllc2rbp0cg18vmr02grf8xi-module-import"]
 ,"x86_64-linux","/gnu/store/0m0vd873jp61lcm4xa3ljdgx381qa782-guile-3.0.2/bin/guile",["--no-auto-compile","-L","/gnu/store/ziqkzr6gbllc2rbp0cg18vmr02grf8xi-module-import","/gnu/store/nqja2pn6mqyqq8gpvsp8jnjaz9cb71js-emacs-next-git.2ea3466-guile-builder"]
 ,[("GUILE_LOAD_COMPILED_PATH","/gnu/store/hr3djx0ls96i9llwqhi8abfk72nym0jv-module-import-compiled")
   ,("out","/gnu/store/9a8labbn5r7c6aavazvi9zhy75srxp0a-emacs-next-git.2ea3466")])
--8<---------------cut here---------------end--------------->8---

Three things appears in the transformed build only:

 1. util-linux-2.35.1.drv,["lib"]
 2. guix-emacs.el
 3. /gnu/store/s48w5zmgchqp8rjl9z2bg8wb0v3j44gj--2ea3466

Do I miss something?  Is it Emacs specific because of ’inherit’?  Or
coming from the ’transform’ option?

All the best,
simon