Bug#1126211: marked as done (haskell-natural-transformation: FTBFS: dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2)

Debian Bug Tracking System Wed, 28 Jan 2026 13:12:49 -0800

Your message dated Wed, 28 Jan 2026 20:52:53 +0000
with message-id <[email protected]>
and subject line Bug#1126211: fixed in haskell-natural-transformation 0.4.1-1
has caused the Debian Bug report #1126211,
regarding haskell-natural-transformation: FTBFS: dpkg-buildpackage: error: 
debian/rules binary subprocess failed with exit status 2
to be marked as done.


This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)


-- 
1126211: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1126211
Debian Bug Tracking System
Contact [email protected] with problems

--- Begin Message ---

Package: src:haskell-natural-transformation
Version: 0.4-9
Severity: serious
Tags: ftbfs forky sid

Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202601/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:haskell-natural-transformation, so that this 
is still
visible in the BTS web page for this package.

Thanks.

--------------------------------------------------------------------------------
[...]
 debian/rules clean
test -x debian/rules
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

dh_clean 
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

perl -d:Confess -MDebian::Debhelper::Buildsystem::Haskell::Recipes=/.*/ \
        -E 'clean_recipe'
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

Running rm -rf dist dist-ghc dist-ghcjs dist-hugs debian/tmp-setup-hs
Running rm -f debian/hlibrary.setup
Running rm -f Setup.hi Setup.ho Setup.o
Running rm -f
rm -f configure-ghc-stamp
rm -f build-ghc-stamp build-hugs-stamp build-haddock-stamp
rm -f check-ghc-stamp
rm -f debian/tmp
rm -rf debian/tmp-inst-ghc debian/tmp-inst-ghcjs
rm -rf debian/tmp-db
rm -f debian/hlibrary.Makefile
 debian/rules binary
test -x debian/rules
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

dh_testroot
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

dh_prep 
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

dh_installdirs -A 
mkdir -p "."
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

CDBS WARNING:    DEB_DH_STRIP_ARGS is deprecated since 0.4.85
CDBS WARNING:    DEB_COMPRESS_EXCLUDE is deprecated since 0.4.85
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

Adding cdbs dependencies to debian/libghc-natural-transformation-doc.substvars
dh_installdirs -plibghc-natural-transformation-doc \
        
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

perl -d:Confess -MDebian::Debhelper::Buildsystem::Haskell::Recipes=/.*/ \
        -E 'make_setup_recipe'
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

Running ghc --make Setup.hs -o debian/hlibrary.setup
[1 of 2] Compiling Main             ( Setup.hs, Setup.o )
[2 of 2] Linking debian/hlibrary.setup
perl -d:Confess -MDebian::Debhelper::Buildsystem::Haskell::Recipes=/.*/ \
        -E 'configure_recipe'
/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

/usr/share/haskell-devscripts/GetCabalVersion.hs:17:50: warning: [GHC-63394] 
[-Wx-partial]
    In the use of âheadâ
    (imported from Prelude, but defined in GHC.Internal.List):
    "This is a partial function, it throws an error on empty lists. Use pattern 
matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider 
refactoring to use "Data.List.NonEmpty"."
   |
17 |     gpd <- readGenericPackageDescription silent (head args)
   |                                                  ^^^^

Running find . ! -newer /tmp/fofBzDSqku -exec touch -d 1998-01-01 UTC {} ;
Running dh_listpackages
libghc-natural-transformation-dev
libghc-natural-transformation-prof
libghc-natural-transformation-doc
Running dh_listpackages
libghc-natural-transformation-dev
libghc-natural-transformation-prof
libghc-natural-transformation-doc
Running dpkg-buildflags --get LDFLAGS
-Wl,-z,relro
Running debian/hlibrary.setup configure --ghc -v2 
--package-db=/var/lib/ghc/package.conf.d --prefix=/usr 
--libdir=/usr/lib/haskell-packages/ghc/lib --libexecdir=/usr/lib 
--builddir=dist-ghc --ghc-option=-optl-Wl,-z,relro 
--haddockdir=/usr/lib/ghc-doc/haddock/natural-transformation-0.4/ 
--datasubdir=natural-transformation 
--htmldir=/usr/share/doc/libghc-natural-transformation-doc/html/ 
--enable-library-profiling --enable-tests
Non-zero exit code 1.
Using Parsec parser
Configuring natural-transformation-0.4...
Error: [Cabal-8010]
Encountered missing or private dependencies:
    containers >=0.1 && <0.7
CallStack (from HasCallStack):
  dieWithException, called at 
libraries/Cabal/Cabal/src/Distribution/Simple/Configure.hs:1457:11 in 
Cabal-3.12.1.0-7f1d:Distribution.Simple.Configure

 at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 112.
        
Debian::Debhelper::Buildsystem::Haskell::Recipes::run_quiet("debian/hlibrary.setup",
 "configure", "--ghc", "-v2", "--package-db=/var/lib/ghc/package.conf.d", 
"--prefix=/usr", "--libdir=/usr/lib/haskell-packages/ghc/lib", 
"--libexecdir=/usr/lib", ...) called at 
/usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 136
        
Debian::Debhelper::Buildsystem::Haskell::Recipes::run("debian/hlibrary.setup", 
"configure", "--ghc", "-v2", "--package-db=/var/lib/ghc/package.conf.d", 
"--prefix=/usr", "--libdir=/usr/lib/haskell-packages/ghc/lib", 
"--libexecdir=/usr/lib", ...) called at 
/usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 770
        Debian::Debhelper::Buildsystem::Haskell::Recipes::configure_recipe() 
called at -e line 1
make: *** [/usr/share/cdbs/1/class/hlibrary.mk:153: configure-ghc-stamp] Error 1
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit 
status 2
--------------------------------------------------------------------------------

--- End Message ---

--- Begin Message ---

Source: haskell-natural-transformation
Source-Version: 0.4.1-1
Done: Ilias Tsitsimpis <[email protected]>

We believe that the bug you reported is fixed in the latest version of
haskell-natural-transformation, which is due to be installed in the Debian FTP 
archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Ilias Tsitsimpis <[email protected]> (supplier of updated 
haskell-natural-transformation package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Wed, 28 Jan 2026 20:18:12 +0200
Source: haskell-natural-transformation
Architecture: source
Version: 0.4.1-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Haskell Group 
<[email protected]>
Changed-By: Ilias Tsitsimpis <[email protected]>
Closes: 1126211
Changes:
 haskell-natural-transformation (0.4.1-1) unstable; urgency=medium
 .
   [ Scott Talbert ]
   * Build using dh-haskell
 .
   [ Ilias Tsitsimpis ]
   * New upstream release (Closes: #1126211)
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--- End Message ---

Bug#1126211: marked as done (haskell-natural-transformation: FTBFS: dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2)

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