From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Subject: bug#34227: Non-deterministic GHC build errors Date: Sun, 27 Jan 2019 22:52:52 +0100 Message-ID: <87y375epjf.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([209.51.188.92]:36978) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gnsNQ-0003Q3-7V for bug-guix@gnu.org; Sun, 27 Jan 2019 16:54:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gnsNP-00013d-Ca for bug-guix@gnu.org; Sun, 27 Jan 2019 16:54:04 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:48741) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gnsNP-00013G-8W for bug-guix@gnu.org; Sun, 27 Jan 2019 16:54:03 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gnsNO-0002Z8-IP for bug-guix@gnu.org; Sun, 27 Jan 2019 16:54:02 -0500 Sender: "Debbugs-submit" Resent-Message-ID: Received: from eggs.gnu.org ([209.51.188.92]:36767) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gnsMR-0003IA-5M for bug-guix@gnu.org; Sun, 27 Jan 2019 16:53:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gnsMP-0000PL-T9 for bug-guix@gnu.org; Sun, 27 Jan 2019 16:53:03 -0500 Received: from hera.aquilenet.fr ([2a0c:e300::1]:36164) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gnsML-0000NU-G5 for bug-guix@gnu.org; Sun, 27 Jan 2019 16:53:01 -0500 Received: from localhost (localhost [127.0.0.1]) by hera.aquilenet.fr (Postfix) with ESMTP id 2E5D58058 for ; Sun, 27 Jan 2019 22:52:54 +0100 (CET) Received: from hera.aquilenet.fr ([127.0.0.1]) by localhost (hera.aquilenet.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AMToWuysVev8 for ; Sun, 27 Jan 2019 22:52:53 +0100 (CET) Received: from ribbon (unknown [IPv6:2a01:e0a:1d:7270:af76:b9b:ca24:c465]) by hera.aquilenet.fr (Postfix) with ESMTPSA id 560638050 for ; Sun, 27 Jan 2019 22:52:53 +0100 (CET) List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org Sender: "bug-Guix" To: 34227@debbugs.gnu.org Hello, I=E2=80=99ve noticed something really unexpected: take a Haskell package, s= ay =E2=80=98ghc-libmpd=E2=80=99, build it several times (with --rounds or --ch= eck), and notice that sometimes it will build successfully, and other times, you=E2=80=99ll get a compiler error like this: --8<---------------cut here---------------start------------->8--- Configuring libmpd-0.9.0.9... phase `configure' succeeded after 0.9 seconds starting phase `patch-generated-file-shebangs' phase `patch-generated-file-shebangs' succeeded after 0.0 seconds starting phase `build' running "runhaskell Setup.hs" with command "build" and parameters () Preprocessing library for libmpd-0.9.0.9.. Building library for libmpd-0.9.0.9.. [ 1 of 36] Compiling Network.MPD.Core.Error ( src/Network/MPD/Core/Error.hs= , dist/build/Network/MPD/Core/Error.o ) src/Network/MPD/Core/Error.hs:18:1: warning: [-Wdeprecations] Module =E2=80=98Control.Monad.Error=E2=80=99 is deprecated: Use "Control.Monad.Except" instead | 18 | import Control.Monad.Error (Error(..)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ src/Network/MPD/Core/Error.hs:48:10: warning: [-Wdeprecations] In the use of type constructor or class =E2=80=98Error=E2=80=99 (imported from Control.Monad.Error, but defined in transformers-0.5.5.0= :Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" | 48 | instance Error MPDError where | ^^^^^ src/Network/MPD/Core/Error.hs:48:10: warning: [-Wdeprecations] In the use of type constructor or class =E2=80=98Error=E2=80=99 (imported from Control.Monad.Error, but defined in transformers-0.5.5.0= :Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" | 48 | instance Error MPDError where | ^^^^^ [ 2 of 36] Compiling Network.MPD.Core.Class ( src/Network/MPD/Core/Class.hs= , dist/build/Network/MPD/Core/Class.o ) src/Network/MPD/Core/Class.hs:17:1: warning: [-Wdeprecations] Module =E2=80=98Control.Monad.Error=E2=80=99 is deprecated: Use "Control.Monad.Except" instead | 17 | import Control.Monad.Error (MonadError) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [ 3 of 36] Compiling Network.MPD.Util ( src/Network/MPD/Util.hs, dist/build= /Network/MPD/Util.o ) --8<---------------cut here---------------end--------------->8--- That seems surreal to me. Thoughts? Ludo=E2=80=99.