[WIP] Allow linking to a proc macro on the target in metadata and still use a host proc macro to execute them

[Zoxc]

r? @michaelwoerister

[michaelwoerister]

Thanks, @Zoxc. I'm going to refer this to @eddyb who knows more about proc macros.

r? @eddyb

[rust-highfive]

The job x86_64-gnu-llvm-6.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

travis_time:end:0d04a88b:start=1547542456892275136,finish=1547542458018284829,duration=1126009693
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
Setting environment variables from .travis.yml
$ export IMAGE=x86_64-gnu-llvm-6.0
---
travis_time:start:test_debuginfo
Check compiletest suite=debuginfo mode=debuginfo-both (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:12:00] 
[01:12:00] running 118 tests
[01:12:25] .iiiii...i.....i..i...i..i.i..i.ii..i.....i..i....i..........iiii..........i...ii...i.......ii.i.i.i 100/118
[01:12:29] ......iii.i.....ii
[01:12:29] 
[01:12:29]  finished in 28.937
[01:12:29] travis_fold:end:test_debuginfo

---
travis_time:start:test_run-make-fulldeps
Check compiletest suite=run-make-fulldeps mode=run-make (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:39:14] 
[01:39:14] running 193 tests
[01:39:40] ................................................................................F................... 100/193
[01:40:24] .............................................................................................
[01:40:24] failures:
[01:40:24] 
[01:40:24] ---- [run-make] run-make-fulldeps/issue-37893 stdout ----
[01:40:24] ---- [run-make] run-make-fulldeps/issue-37893 stdout ----
[01:40:24] 
[01:40:24] error: make failed
[01:40:24] status: exit code: 2
[01:40:24] command: "make"
[01:40:24] stdout:
[01:40:24] ------------------------------------------
[01:40:24] make[1]: Entering directory '/checkout/src/test/run-make-fulldeps/issue-37893'
[01:40:24] LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib:" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893 -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893  a.rs && LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib:" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893 -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893  b.rs && LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib:" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893 -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893  c.rs
[01:40:24] Makefile:9: recipe for target 'all' failed
[01:40:24] make[1]: Leaving directory '/checkout/src/test/run-make-fulldeps/issue-37893'
[01:40:24] ------------------------------------------
[01:40:24] stderr:
[01:40:24] ------------------------------------------
[01:40:24] warning: unused `#[macro_use]` import
[01:40:24] warning: unused `#[macro_use]` import
[01:40:24]  --> b.rs:2:1
[01:40:24]   |
[01:40:24] 2 | #[macro_use] extern crate a;
[01:40:24]   | ^^^^^^^^^^^^
[01:40:24]   |
[01:40:24]   = note: #[warn(unused_imports)] on by default
[01:40:24] 
[01:40:24] error: crate `a` required to be available in rlib format, but was not found in this form
[01:40:24] error: aborting due to previous error
[01:40:24] 
[01:40:24] 
[01:40:24] make[1]: *** [all] Error 1
[01:40:24] ------------------------------------------
[01:40:24] 
[01:40:24] thread '[run-make] run-make-fulldeps/issue-37893' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3245:9
[01:40:24] note: Run with `RUST_BACKTRACE=1` for a backtrace.
---
[01:40:24] test result: FAILED. 192 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[01:40:24] 
[01:40:24] 
[01:40:24] 
[01:40:24] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--rustdoc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc" "--src-base" "/checkout/src/test/run-make-fulldeps" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--mode" "run-make" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-6.0/bin/FileCheck" "--host-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python2.7" "--lldb-python" "/usr/bin/python2.7" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "6.0.0\n" "--system-llvm" "--cc" "cc" "--cxx" "c++" "--cflags" "-ffunction-sections -fdata-sections -fPIC -m64" "--llvm-components" "aarch64 aarch64asmparser aarch64asmprinter aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils all all-targets amdgpu amdgpuasmparser amdgpuasmprinter amdgpucodegen amdgpudesc amdgpudisassembler amdgpuinfo amdgpuutils analysis arm armasmparser armasmprinter armcodegen armdesc armdisassembler arminfo armutils asmparser asmprinter binaryformat bitreader bitwriter bpf bpfasmparser bpfasmprinter bpfcodegen bpfdesc bpfdisassembler bpfinfo codegen core coroutines coverage debuginfocodeview debuginfodwarf debuginfomsf debuginfopdb demangle dlltooldriver engine executionengine fuzzmutate globalisel hexagon hexagonasmparser hexagoncodegen hexagondesc hexagondisassembler hexagoninfo instcombine instrumentation interpreter ipo irreader lanai lanaiasmparser lanaiasmprinter lanaicodegen lanaidesc lanaidisassembler lanaiinfo libdriver lineeditor linker lto mc mcdisassembler mcjit mcparser mips mipsasmparser mipsasmprinter mipscodegen mipsdesc mipsdisassembler mipsinfo mirparser msp430 msp430asmprinter msp430codegen msp430desc msp430info native nativecodegen nvptx nvptxasmprinter nvptxcodegen nvptxdesc nvptxinfo objcarcopts object objectyaml option orcjit passes powerpc powerpcasmparser powerpcasmprinter powerpccodegen powerpcdesc powerpcdisassembler powerpcinfo profiledata runtimedyld scalaropts selectiondag sparc sparcasmparser sparcasmprinter sparccodegen sparcdesc sparcdisassembler sparcinfo support symbolize systemz systemzasmparser systemzasmprinter systemzcodegen systemzdesc systemzdisassembler systemzinfo tablegen target transformutils vectorize windowsmanifest x86 x86asmparser x86asmprinter x86codegen x86desc x86disassembler x86info x86utils xcore xcoreasmprinter xcorecodegen xcoredesc xcoredisassembler xcoreinfo" "--llvm-cxxflags" "-I/usr/lib/llvm-6.0/include -std=c++0x -fuse-ld=gold -Wl,--no-keep-files-mapped -Wl,--no-map-whole-files -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wno-maybe-uninitialized -Wdelete-non-virtual-dtor -Wno-comment -ffunction-sections -fdata-sections -O2 -DNDEBUG  -fno-exceptions -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS" "--ar" "ar" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"
[01:40:24] 
[01:40:24] 
[01:40:24] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
[01:40:24] Build completed unsuccessfully in 0:39:55
[01:40:24] Build completed unsuccessfully in 0:39:55
[01:40:24] make: *** [check] Error 1
[01:40:24] Makefile:48: recipe for target 'check' failed
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:05ddff11
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Tue Jan 15 10:34:55 UTC 2019
---
travis_time:end:1f56b192:start=1547548496346555266,finish=1547548496352501619,duration=5946353
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:11aff8b8
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:2bf405da
travis_time:start:2bf405da
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:15663c47
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[Centril]

Ping from triage @Zoxc; seems travis isn't happy?

[rust-highfive]

The job x86_64-gnu-llvm-6.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

travis_time:end:0f041e74:start=1548523989108569844,finish=1548523990154510320,duration=1045940476
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
Setting environment variables from .travis.yml
$ export IMAGE=x86_64-gnu-llvm-6.0
---
travis_time:start:test_debuginfo
Check compiletest suite=debuginfo mode=debuginfo-both (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:10:57] 
[01:10:57] running 118 tests
[01:11:25] .iiiii...i.....i..i...i..i.i..i.ii..i.....i..i....i..........iiii..........i...ii...i.......ii.i.i.i 100/118
[01:11:29] ......iii.i.....ii
[01:11:29] 
[01:11:29]  finished in 32.271
[01:11:29] travis_fold:end:test_debuginfo

---
travis_time:start:test_run-make-fulldeps
Check compiletest suite=run-make-fulldeps mode=run-make (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:37:36] 
[01:37:36] running 193 tests
[01:38:03] .................................................................................F.................. 100/193
[01:38:49] .............................................................................................
[01:38:49] failures:
[01:38:49] 
[01:38:49] ---- [run-make] run-make-fulldeps/issue-37893 stdout ----
[01:38:49] ---- [run-make] run-make-fulldeps/issue-37893 stdout ----
[01:38:49] 
[01:38:49] error: make failed
[01:38:49] status: exit code: 2
[01:38:49] command: "make"
[01:38:49] stdout:
[01:38:49] ------------------------------------------
[01:38:49] make[1]: Entering directory '/checkout/src/test/run-make-fulldeps/issue-37893'
[01:38:49] LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib:" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893 -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893  a.rs && LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib:" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893 -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893  b.rs && LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib:" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893 -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps/issue-37893/issue-37893  c.rs
[01:38:49] Makefile:9: recipe for target 'all' failed
[01:38:49] make[1]: Leaving directory '/checkout/src/test/run-make-fulldeps/issue-37893'
[01:38:49] ------------------------------------------
[01:38:49] stderr:
[01:38:49] ------------------------------------------
[01:38:49] warning: unused `#[macro_use]` import
[01:38:49] warning: unused `#[macro_use]` import
[01:38:49]  --> b.rs:2:1
[01:38:49]   |
[01:38:49] 2 | #[macro_use] extern crate a;
[01:38:49]   | ^^^^^^^^^^^^
[01:38:49]   |
[01:38:49]   = note: #[warn(unused_imports)] on by default
[01:38:49] 
[01:38:49] error: crate `a` required to be available in rlib format, but was not found in this form
[01:38:49] error: aborting due to previous error
[01:38:49] 
[01:38:49] 
[01:38:49] make[1]: *** [all] Error 1
[01:38:49] ------------------------------------------
[01:38:49] 
[01:38:49] thread '[run-make] run-make-fulldeps/issue-37893' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3287:9
[01:38:49] note: Run with `RUST_BACKTRACE=1` for a backtrace.
---
[01:38:49] test result: FAILED. 192 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[01:38:49] 
[01:38:49] 
[01:38:49] 
[01:38:49] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--rustdoc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc" "--src-base" "/checkout/src/test/run-make-fulldeps" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make-fulldeps" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--mode" "run-make" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-6.0/bin/FileCheck" "--host-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python2.7" "--lldb-python" "/usr/bin/python2.7" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "6.0.0\n" "--system-llvm" "--cc" "cc" "--cxx" "c++" "--cflags" "-ffunction-sections -fdata-sections -fPIC -m64" "--llvm-components" "aarch64 aarch64asmparser aarch64asmprinter aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils all all-targets amdgpu amdgpuasmparser amdgpuasmprinter amdgpucodegen amdgpudesc amdgpudisassembler amdgpuinfo amdgpuutils analysis arm armasmparser armasmprinter armcodegen armdesc armdisassembler arminfo armutils asmparser asmprinter binaryformat bitreader bitwriter bpf bpfasmparser bpfasmprinter bpfcodegen bpfdesc bpfdisassembler bpfinfo codegen core coroutines coverage debuginfocodeview debuginfodwarf debuginfomsf debuginfopdb demangle dlltooldriver engine executionengine fuzzmutate globalisel hexagon hexagonasmparser hexagoncodegen hexagondesc hexagondisassembler hexagoninfo instcombine instrumentation interpreter ipo irreader lanai lanaiasmparser lanaiasmprinter lanaicodegen lanaidesc lanaidisassembler lanaiinfo libdriver lineeditor linker lto mc mcdisassembler mcjit mcparser mips mipsasmparser mipsasmprinter mipscodegen mipsdesc mipsdisassembler mipsinfo mirparser msp430 msp430asmprinter msp430codegen msp430desc msp430info native nativecodegen nvptx nvptxasmprinter nvptxcodegen nvptxdesc nvptxinfo objcarcopts object objectyaml option orcjit passes powerpc powerpcasmparser powerpcasmprinter powerpccodegen powerpcdesc powerpcdisassembler powerpcinfo profiledata runtimedyld scalaropts selectiondag sparc sparcasmparser sparcasmprinter sparccodegen sparcdesc sparcdisassembler sparcinfo support symbolize systemz systemzasmparser systemzasmprinter systemzcodegen systemzdesc systemzdisassembler systemzinfo tablegen target transformutils vectorize windowsmanifest x86 x86asmparser x86asmprinter x86codegen x86desc x86disassembler x86info x86utils xcore xcoreasmprinter xcorecodegen xcoredesc xcoredisassembler xcoreinfo" "--llvm-cxxflags" "-I/usr/lib/llvm-6.0/include -std=c++0x -fuse-ld=gold -Wl,--no-keep-files-mapped -Wl,--no-map-whole-files -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wno-maybe-uninitialized -Wdelete-non-virtual-dtor -Wno-comment -ffunction-sections -fdata-sections -O2 -DNDEBUG  -fno-exceptions -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS" "--ar" "ar" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"
[01:38:49] 
[01:38:49] 
[01:38:49] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
[01:38:49] Build completed unsuccessfully in 0:39:48
[01:38:49] Build completed unsuccessfully in 0:39:48
[01:38:49] Makefile:48: recipe for target 'check' failed
[01:38:49] make: *** [check] Error 1
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:00d39e78
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Sat Jan 26 19:12:10 UTC 2019
---
travis_time:end:072c1c6c:start=1548529932425710868,finish=1548529932431772466,duration=6061598
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:0faac2e0
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:start:crashlog
obj/cores/core.29050.!checkout!obj!build!x86_64-unknown-linux-gnu!stage2!bin!rustc
[New LWP 29087]
[New LWP 29085]
[New LWP 29086]
[New LWP 29050]
[New LWP 29088]
[New LWP 29084]
warning: Could not load shared library symbols for 14 libraries, e.g. /lib/x86_64-linux-gnu/libc.so.6.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[rust-highfive]

The job x86_64-gnu-llvm-6.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

travis_time:end:0467255a:start=1548689060750712466,finish=1548689063994766076,duration=3244053610
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
Setting environment variables from .travis.yml
$ export IMAGE=x86_64-gnu-llvm-6.0
---

[00:07:18] travis_fold:start:tidy
travis_time:start:tidy
tidy check
[00:07:18] tidy error: /checkout/src/librustc_metadata/creader.rs:371: tab character
[00:07:18] tidy error: /checkout/src/librustc_metadata/creader.rs:371: trailing whitespace
[00:07:20] some tidy checks failed
[00:07:20] 
[00:07:20] 
[00:07:20] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/tidy" "/checkout/src" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "--no-vendor" "--quiet"
[00:07:20] 
[00:07:20] 
[00:07:20] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test src/tools/tidy
[00:07:20] Build completed unsuccessfully in 0:00:45
[00:07:20] Build completed unsuccessfully in 0:00:45
[00:07:20] make: *** [tidy] Error 1
[00:07:20] Makefile:68: recipe for target 'tidy' failed
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:1b4a82ef
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Mon Jan 28 15:31:55 UTC 2019
---
travis_time:end:0f8b3400:start=1548689516623578081,finish=1548689516628522641,duration=4944560
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:038748c0
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:01673980
travis_time:start:01673980
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:00eb39d4
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)