From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark H Weaver Subject: bug#30015: WebKitGTK nondeterministic build failures Date: Sun, 07 Jan 2018 16:23:31 -0500 Message-ID: <87o9m5cqi4.fsf_-_@netris.org> References: <874lnzcedp.fsf@gmail.com> <20180106174358.GA28436@jasmine.lan> <87vageeobi.fsf@netris.org> <87incedvgv.fsf@netris.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:38978) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eYIRF-0006YC-VZ for bug-guix@gnu.org; Sun, 07 Jan 2018 16:25:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eYIRC-0006D9-NX for bug-guix@gnu.org; Sun, 07 Jan 2018 16:25:05 -0500 Received: from debbugs.gnu.org ([208.118.235.43]:59454) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eYIRC-0006D3-J2 for bug-guix@gnu.org; Sun, 07 Jan 2018 16:25:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eYIRC-0003S1-D6 for bug-guix@gnu.org; Sun, 07 Jan 2018 16:25:02 -0500 Sender: "Debbugs-submit" Resent-Message-ID: Received: from eggs.gnu.org ([2001:4830:134:3::10]:38846) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eYIQQ-0006CB-1M for bug-guix@gnu.org; Sun, 07 Jan 2018 16:24:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eYIQM-0005rA-PQ for bug-guix@gnu.org; Sun, 07 Jan 2018 16:24:14 -0500 Received: from world.peace.net ([50.252.239.5]:51910) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eYIQM-0005mj-Jk for bug-guix@gnu.org; Sun, 07 Jan 2018 16:24:10 -0500 In-Reply-To: <87incedvgv.fsf@netris.org> (Mark H. Weaver's message of "Sun, 07 Jan 2018 01:38:40 -0500") 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: 30015@debbugs.gnu.org I recently wrote on guix-devel: > I just followed this up with a Spectre mitigation for WebKitGTK+ > backported from upstream WebKit: > > https://git.savannah.gnu.org/cgit/guix.git/commit/?id=56804398a94bea941183ae4ed29d2a9f82069a6f Unfortunately, this seems to have introduced non-deterministic build failures on Hydra. On the first attempt, WebKitGTK+ failed to build on both x86_64 and i686. On the second attempt, it succeeded on x86_64 but failed again on i686. Hydra is currently working on the third build attempt on i686. I find it very unlikely that this problem is related to the content of the patch itself. My best guess is that it's caused by the fact that our 'patch-and-repack' mechanism, which generates the patched tarball, resets all the timestamps to 0, whereas previously we built the upstream tarball directly with non-zero timestamps. I guess that the build system contains a race condition that is much more likely to occur when the timestamps are 0. It did happen once in December 2015 on i686, but the other three failures happened today. I suppose the issue could be solved by disabling parallelism in the build, but that would be a shame given that WebKitGTK+ already takes a very long time to build: almost 5 hours on my X200 and about 2 hours on hydra.gnunet.org. It's also inconvenient that the build log is so large (around 70 MB) that Hydra's web interface refuses to display it. The failure is always the same: --8<---------------cut here---------------start------------->8--- Traceback (most recent call last): File "/tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py", line 28, in import webkit.messages EOFError: EOF read where object expected --8<---------------cut here---------------end--------------->8--- although the specific target being built when this error occurs varies. The targets that I've seen fail are: 1. make[2]: *** [Source/WebKit/CMakeFiles/WebKit2.dir/build.make:745: DerivedSources/WebKit2/WebRTCSocketMessageReceiver.cpp] Error 1 2. make[2]: *** [Source/WebKit/CMakeFiles/WebKit2.dir/build.make:722: DerivedSources/WebKit2/WebRTCMonitorMessageReceiver.cpp] Error 1 3. make[2]: *** [Source/WebKit/CMakeFiles/WebKit2.dir/build.make:457: DerivedSources/WebKit2/WebFullScreenManagerProxyMessageReceiver.cpp] Error 1 4. GNUmakefile:82826: recipe for target 'DerivedSources/WebKit2/CustomProtocolManagerProxyMessages.h' failed That last one (4) occurred with webkitgtk-2.4.9 on i686-linux in December 2015. Here's a longer tail of the failed build log from today on x86_64: --8<---------------cut here---------------start------------->8--- [ 83%] Generating ../../DerivedSources/WebKit2/WebResourceLoadStatisticsStoreMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebResourceLoadStatisticsStoreMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/WebResourceLoadStatisticsStore.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebResourceLoadStatisticsStoreMessageReceiver.cpp [ 83%] Generating ../../DerivedSources/WebKit2/WebAutomationSessionMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebAutomationSessionMessages.h [ 83%] Generating ../../DerivedSources/WebKit2/DownloadProxyMessageReceiver.cpp, ../../DerivedSources/WebKit2/DownloadProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/WebResourceLoadStatisticsStore.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebResourceLoadStatisticsStoreMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/Automation/WebAutomationSession.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebAutomationSessionMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/Downloads/DownloadProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/DownloadProxyMessageReceiver.cpp [ 83%] Generating ../../DerivedSources/WebKit2/NetworkProcessProxyMessageReceiver.cpp, ../../DerivedSources/WebKit2/NetworkProcessProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/Network/NetworkProcessProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/NetworkProcessProxyMessageReceiver.cpp [ 83%] Generating ../../DerivedSources/WebKit2/LegacyCustomProtocolManagerProxyMessageReceiver.cpp, ../../DerivedSources/WebKit2/LegacyCustomProtocolManagerProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/Network/CustomProtocols/LegacyCustomProtocolManagerProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/LegacyCustomProtocolManagerProxyMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/Network/NetworkProcessProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/NetworkProcessProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/Downloads/DownloadProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/DownloadProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/Automation/WebAutomationSession.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebAutomationSessionMessages.h [ 83%] Generating ../../DerivedSources/WebKit2/PluginProcessProxyMessageReceiver.cpp, ../../DerivedSources/WebKit2/PluginProcessProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/Plugins/PluginProcessProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/PluginProcessProxyMessageReceiver.cpp [ 84%] Generating ../../DerivedSources/WebKit2/StorageProcessProxyMessageReceiver.cpp, ../../DerivedSources/WebKit2/StorageProcessProxyMessages.h [ 84%] Generating ../../DerivedSources/WebKit2/WebUserContentControllerProxyMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebUserContentControllerProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/Storage/StorageProcessProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/StorageProcessProxyMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/UserContent/WebUserContentControllerProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebUserContentControllerProxyMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/Network/CustomProtocols/LegacyCustomProtocolManagerProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/LegacyCustomProtocolManagerProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/Plugins/PluginProcessProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/PluginProcessProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/Storage/StorageProcessProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/StorageProcessProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/UserContent/WebUserContentControllerProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebUserContentControllerProxyMessages.h [ 84%] Generating ../../DerivedSources/WebKit2/StorageManagerMessageReceiver.cpp, ../../DerivedSources/WebKit2/StorageManagerMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py UIProcess/WebStorage/StorageManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/StorageManagerMessageReceiver.cpp [ 84%] Generating ../../DerivedSources/WebKit2/WebProcessMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebProcessMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/WebProcess.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebProcessMessageReceiver.cpp [ 84%] Generating ../../DerivedSources/WebKit2/WebAutomationSessionProxyMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebAutomationSessionProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Automation/WebAutomationSessionProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebAutomationSessionProxyMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py UIProcess/WebStorage/StorageManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/StorageManagerMessages.h [ 84%] Generating ../../DerivedSources/WebKit2/WebCookieManagerMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebCookieManagerMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Cookies/WebCookieManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebCookieManagerMessageReceiver.cpp [ 84%] Generating ../../DerivedSources/WebKit2/WebIDBConnectionToServerMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebIDBConnectionToServerMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/WebProcess.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebProcessMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Automation/WebAutomationSessionProxy.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebAutomationSessionProxyMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Cookies/WebCookieManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebCookieManagerMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Databases/IndexedDB/WebIDBConnectionToServer.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebIDBConnectionToServerMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Databases/IndexedDB/WebIDBConnectionToServer.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebIDBConnectionToServerMessages.h [ 84%] Generating ../../DerivedSources/WebKit2/WebFullScreenManagerMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebFullScreenManagerMessages.h [ 84%] Generating ../../DerivedSources/WebKit2/WebGeolocationManagerMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebGeolocationManagerMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/FullScreen/WebFullScreenManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebFullScreenManagerMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Geolocation/WebGeolocationManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebGeolocationManagerMessageReceiver.cpp [ 84%] Generating ../../DerivedSources/WebKit2/WebRTCMonitorMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebRTCMonitorMessages.h [ 84%] Generating ../../DerivedSources/WebKit2/WebRTCResolverMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebRTCResolverMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Network/webrtc/WebRTCMonitor.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebRTCMonitorMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Network/webrtc/WebRTCResolver.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebRTCResolverMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/FullScreen/WebFullScreenManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebFullScreenManagerMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Geolocation/WebGeolocationManager.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebGeolocationManagerMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Network/webrtc/WebRTCMonitor.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebRTCMonitorMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Network/webrtc/WebRTCResolver.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebRTCResolverMessages.h [ 84%] Generating ../../DerivedSources/WebKit2/WebRTCSocketMessageReceiver.cpp, ../../DerivedSources/WebKit2/WebRTCSocketMessages.h Traceback (most recent call last): File "/tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py", line 28, in import webkit.messages EOFError: EOF read where object expected cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Network/webrtc/WebRTCSocket.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebRTCSocketMessageReceiver.cpp make[2]: *** [Source/WebKit/CMakeFiles/WebKit2.dir/build.make:722: DerivedSources/WebKit2/WebRTCMonitorMessageReceiver.cpp] Error 1 make[2]: *** Deleting file 'DerivedSources/WebKit2/WebRTCMonitorMessageReceiver.cpp' make[2]: *** Waiting for unfinished jobs.... [ 84%] Generating ../../DerivedSources/WebKit2/NetworkProcessConnectionMessageReceiver.cpp, ../../DerivedSources/WebKit2/NetworkProcessConnectionMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-message-receiver.py WebProcess/Network/NetworkProcessConnection.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/NetworkProcessConnectionMessageReceiver.cpp cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Network/webrtc/WebRTCSocket.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/WebRTCSocketMessages.h cd /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit && /gnu/store/zlbbayv8rv6z7gnhz435gjq8pzjm06v6-python-2.7.13/bin/python2.7 /tmp/guix-build-webkitgtk-2.18.4.drv-0/webkitgtk-2.18.4/Source/WebKit/Scripts/generate-messages-header.py WebProcess/Network/NetworkProcessConnection.messages.in > /tmp/guix-build-webkitgtk-2.18.4.drv-0/build/DerivedSources/WebKit2/NetworkProcessConnectionMessages.h make[2]: Leaving directory '/tmp/guix-build-webkitgtk-2.18.4.drv-0/build' make[1]: *** [CMakeFiles/Makefile2:1581: Source/WebKit/CMakeFiles/WebKit2.dir/all] Error 2 make[1]: Leaving directory '/tmp/guix-build-webkitgtk-2.18.4.drv-0/build' make: *** [Makefile:153: all] Error 2 phase `build' failed after 5645.4 seconds builder for `/gnu/store/hp17k74lrlbm62gg5321dqf2r99m5d3q-webkitgtk-2.18.4.drv' failed with exit code 1 @ build-failed /gnu/store/hp17k74lrlbm62gg5321dqf2r99m5d3q-webkitgtk-2.18.4.drv - 1 builder for `/gnu/store/hp17k74lrlbm62gg5321dqf2r99m5d3q-webkitgtk-2.18.4.drv' failed with exit code 1 --8<---------------cut here---------------end--------------->8--- On my X200, the build succeeded on my first try. Would someone like to investigate further? Mark