<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Michael,<div class=""><br class=""></div><div class="">It’s possible that this test is not deterministic. Some contributors to the project have been working on improving this over time.</div><div class=""><br class=""></div><div class="">- Tony<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Dec 19, 2017, at 5:49 PM, Michael Ilseman &lt;<a href="mailto:milseman@apple.com" class="">milseman@apple.com</a>&gt; wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">That’s the thing, there doesn’t look to be a relevant change. Subsequent builds passed. Is there any non-determinism or external causes of failure for these tests?<div class=""><div class=""><br class=""><blockquote type="cite" class=""><div class="">On Dec 19, 2017, at 5:15 PM, Tony Parker &lt;<a href="mailto:anthony.parker@apple.com" class="">anthony.parker@apple.com</a>&gt; wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Last change in this area was 5 days ago:<div class=""><br class=""></div><div class=""><div style="margin: 0px; font-stretch: normal; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">820e3a88 : </span><span style="font-variant-ligatures: no-common-ligatures; color: #34bc26" class="">(5 days ago)</span><span style="font-variant-ligatures: no-common-ligatures" class=""> <b class="">Naoki Ishikawa</b> : use optional binding&nbsp;</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">&nbsp;Foundation/URLSession/http/HTTPURLProtocol.swift | 3 </span><span style="font-variant-ligatures: no-common-ligatures; color: #34bc26" class="">+</span><span style="font-variant-ligatures: no-common-ligatures; color: #c33720" class="">--</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">&nbsp;1 file changed, 1 insertion(+), 2 deletions(-)</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">but that does not look promising as a source of a regression.</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">When did this start failing? Is it possible a change in swift or the standard library caused the problem?</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">- Tony</span></div><div class=""><br class=""><blockquote type="cite" class=""><div class="">On Dec 19, 2017, at 4:12 PM, Michael Ilseman &lt;<a href="mailto:milseman@apple.com" class="">milseman@apple.com</a>&gt; wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">swift-corelibs-dev, any clue why this suddenly started failing?</div><div class=""><br class=""></div><div class=""><span style="color: rgb(255, 255, 255); font-family: monospace; font-size: 13px; white-space: pre-wrap; background-color: rgb(255, 0, 0);" class="">TestFoundation/TestURLSession.swift:776: error: TestURLSession.test_simpleUploadWithDelegate : XCTAssertEqual failed: ("0") is not equal to ("16384") - 
</span></div><div class=""><span style="color: rgb(255, 255, 255); font-family: monospace; font-size: 13px; white-space: pre-wrap; background-color: rgb(255, 0, 0);" class=""><br class=""></span></div><br class=""><div class=""><br class=""><blockquote type="cite" class=""><div class="">On Dec 19, 2017, at 4:02 PM, <a href="mailto:swift-ci@swift.org" class="">swift-ci@swift.org</a> wrote:</div><br class="Apple-interchange-newline"><div class=""><h2 style="font-family: &quot;Helvetica Neue&quot;, sans-serif; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; width: 1237px; background-color: red; color: white; text-align: center;" class=""></h2><h1 style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">[<font class="FAILURE" style="color: red;">FAILURE</font>] oss-swift-4.1-incremental-RA-linux-ubuntu-16_10 [#477]</h1><table style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><tbody class=""><tr style="text-align: left;" class=""><th class="">Build URL:</th><td class=""><a href="https://ci.swift.org/job/oss-swift-4.1-incremental-RA-linux-ubuntu-16_10/477/" style="color: rgb(0, 122, 255); text-decoration: none;" class="">https://ci.swift.org/job/oss-swift-4.1-incremental-RA-linux-ubuntu-16_10/477/</a></td></tr><tr style="text-align: left;" class=""><th class="">Project:</th><td class="">oss-swift-4.1-incremental-RA-linux-ubuntu-16_10</td></tr><tr style="text-align: left;" class=""><th class="">Date of build:</th><td class="">Tue, 19 Dec 2017 17:12:38 -0600</td></tr><tr style="text-align: left;" class=""><th class="">Build duration:</th><td class="">50 min</td></tr></tbody></table><h2 style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">Identified problems:</h2><ul style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><li class="">Compile Error: This build failed because of a compile error. Below is a list of all errors in the build log:<ul class=""><li class=""><a href="https://ci.swift.org//job/oss-swift-4.1-incremental-RA-linux-ubuntu-16_10/477/consoleFull#-3002049213122a513-f36a-4c87-8ed7-cbc36a1ec144" style="color: rgb(0, 122, 255); text-decoration: none;" class="">Indication 1</a></li></ul></li></ul><h2 style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">Tests:</h2><table width="100%" style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><tbody class=""><tr style="text-align: left;" class=""><td class="bg1" colspan="2"></td></tr><tr style="text-align: left;" class=""><td class="bg2" colspan="2">Name:<span class="Apple-converted-space">&nbsp;</span><b class="">Swift(linux-x86_64)</b><br class="">Failed: 0 test(s), Passed: 10119 test(s), Total: 10119 test(s)</td></tr><tr style="text-align: left;" class=""><td class=""></td></tr><tr style="text-align: left;" class=""><td class="bg2" colspan="2">Name:<span class="Apple-converted-space">&nbsp;</span><b class="">Swift-Unit</b><br class="">Failed: 0 test(s), Passed: 487 test(s), Total: 487 test(s)</td></tr><tr style="text-align: left;" class=""><td class=""></td></tr></tbody></table><br style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><h2 style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">Changes</h2><ul style="color: rgb(57, 57, 57); font-family: &quot;Helvetica Neue&quot;, sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><li class="">Commit<span class="Apple-converted-space">&nbsp;</span><b class="">d2505ab28dd999057f9da70ccdd98b536038ef93</b><span class="Apple-converted-space">&nbsp;</span>by<span class="Apple-converted-space">&nbsp;</span><b class="">dgregor:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">[Runtime] Warn about dynamically querying conditional conformances.</p><ul class=""><li class="change-edit"><b class="">edit</b>: stdlib/public/runtime/ProtocolConformance.cpp</li><li class="change-add"><b class="">add</b>: test/Interpreter/conditional_conformances_warning.swift</li></ul></li><br class=""><li class="">Commit<span class="Apple-converted-space">&nbsp;</span><b class="">2e14e88b96a5a4eae4a9a9918f88d87647fcfccf</b><span class="Apple-converted-space">&nbsp;</span>by<span class="Apple-converted-space">&nbsp;</span><b class="">dgregor:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">Revert "[SE-0143] Put conditional conformances behind an "experimental"</p><ul class=""><li class="change-edit"><b class="">edit</b>: test/SILOptimizer/devirt_conditional_conformance.swift</li><li class="change-edit"><b class="">edit</b>: test/Interpreter/conditional_conformances_modules.swift</li><li class="change-edit"><b class="">edit</b>: test/decl/ext/generic.swift</li><li class="change-edit"><b class="">edit</b>: test/SILGen/conditional_conformance.swift</li><li class="change-edit"><b class="">edit</b>: test/decl/var/properties.swift</li><li class="change-edit"><b class="">edit</b>: include/swift/AST/DiagnosticsSema.def</li><li class="change-edit"><b class="">edit</b>: lib/Sema/TypeCheckProtocol.cpp</li><li class="change-edit"><b class="">edit</b>: lib/Frontend/CompilerInvocation.cpp</li><li class="change-edit"><b class="">edit</b>: test/Sema/enum_equatable_conditional.swift</li><li class="change-edit"><b class="">edit</b>: include/swift/Option/Options.td</li><li class="change-edit"><b class="">edit</b>: test/SIL/Parser/witness_tables.sil</li><li class="change-edit"><b class="">edit</b>: tools/sil-opt/SILOpt.cpp</li><li class="change-edit"><b class="">edit</b>: test/Generics/conditional_conformances.swift</li><li class="change-edit"><b class="">edit</b>: test/Generics/conditional_conformances_execute_smoke.swift</li><li class="change-edit"><b class="">edit</b>: test/Interpreter/conditional_conformances_smoke.swift</li><li class="change-edit"><b class="">edit</b>: stdlib/public/core/CMakeLists.txt</li><li class="change-edit"><b class="">edit</b>: lib/Driver/ToolChains.cpp</li><li class="change-edit"><b class="">edit</b>: test/IRGen/conditional_conformances.swift</li><li class="change-edit"><b class="">edit</b>: test/Interpreter/conditional_conformances.swift</li><li class="change-edit"><b class="">edit</b>: test/Generics/requirement_inference.swift</li><li class="change-edit"><b class="">edit</b>: include/swift/Basic/LangOptions.h</li><li class="change-edit"><b class="">edit</b>: test/Generics/conditional_conformances_operators.swift</li></ul></li><br class=""><li class="">Commit<span class="Apple-converted-space">&nbsp;</span><b class="">3883b9319c66c261c90cf87d2340819d3f4f8820</b><span class="Apple-converted-space">&nbsp;</span>by<span class="Apple-converted-space">&nbsp;</span><b class="">dgregor:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">Eliminate extraneous uses of</p><ul class=""><li class="change-edit"><b class="">edit</b>: test/Constraints/array_literal.swift</li><li class="change-edit"><b class="">edit</b>: test/stmt/foreach.swift</li><li class="change-edit"><b class="">edit</b>: test/Interpreter/conditional_conformances_warning.swift</li><li class="change-edit"><b class="">edit</b>: test/IRGen/protocol_conformance_records.swift</li><li class="change-edit"><b class="">edit</b>: test/Prototypes/Algorithms.swift.gyb</li></ul></li><br class=""><li class="">Commit<span class="Apple-converted-space">&nbsp;</span><b class="">e68f77be5aa54db89dde6c321951153f2bdfbe20</b><span class="Apple-converted-space">&nbsp;</span>by<span class="Apple-converted-space">&nbsp;</span><b class="">dgregor:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">[Runtime] Print demangled names in conditional conformances warning.</p><ul class=""><li class="change-edit"><b class="">edit</b>: stdlib/public/runtime/ProtocolConformance.cpp</li><li class="change-edit"><b class="">edit</b>: test/Interpreter/conditional_conformances_warning.swift</li></ul></li><br class=""><li class="">Commit<span class="Apple-converted-space">&nbsp;</span><b class="">cf33f86c1171f505611b61aab464fef2d25e8805</b><span class="Apple-converted-space">&nbsp;</span>by<span class="Apple-converted-space">&nbsp;</span><b class="">dgregor:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">[Runtime] Update field names for the 4.1 branch</p><ul class=""><li class="change-edit"><b class="">edit</b>: stdlib/public/runtime/ProtocolConformance.cpp</li></ul></li><br class=""><li class="">Commit<span class="Apple-converted-space">&nbsp;</span><b class="">1ac71826854a809f67ae15ddacaaa9a6eb8189e8</b><span class="Apple-converted-space">&nbsp;</span>by<span class="Apple-converted-space">&nbsp;</span><b class="">aleksei_lorenz:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">[driver][darwin] Take the OS version specified in "-target" as the</p><ul class=""><li class="change-edit"><b class="">edit</b>: lib/Driver/ToolChains/Darwin.cpp</li><li class="change-edit"><b class="">edit</b>: test/Driver/objc-weak.m</li><li class="change-edit"><b class="">edit</b>: test/Driver/darwin-version.c</li><li class="change-edit"><b class="">edit</b>: test/Driver/pic.c</li><li class="change-edit"><b class="">edit</b>: test/Driver/unavailable_aligned_allocation.cpp</li></ul></li><br class=""><li class="">Commit<span class="Apple-converted-space">&nbsp;</span><b class="">4a9ce31c969cc4c9429e306d463610c0c623baa9</b><span class="Apple-converted-space">&nbsp;</span>by<span class="Apple-converted-space">&nbsp;</span><b class="">aleksei_lorenz:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">Don't warn about superfluous -m<os class="">-version-min option in</os></p><ul class=""><li class="change-edit"><b class="">edit</b>: lib/Driver/ToolChains/Darwin.cpp</li><li class="change-edit"><b class="">edit</b>: test/Driver/darwin-version.c</li></ul></li></ul></div></blockquote></div><br class=""></div></div></blockquote></div><br class=""></div></div></div></blockquote></div><br class=""></div></div></div></blockquote></div><br class=""></div></body></html>