Filed by: nfay [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=382897126&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/HXf2fi_bQrS2p2AXJ4z7AQ/runs/0/artifacts/public/logs/live_backing.log

[task 2022-06-29T14:19:36.793Z] 14:19:36     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/tools/profiler'
[task 2022-06-29T14:19:36.797Z] 14:19:36     INFO -  /builds/worker/fetches/sccache/sccache /builds/worker/fetches/clang/bin/i686-w64-mingw32-clang++ -std=gnu++17 -o Unified_cpp_tools_profiler0.o -c  -I/builds/worker/workspace/obj-build/dist/stl_wrappers -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -ftrivial-auto-var-init=pattern -DDEBUG=1 -DMOZ_REPLACE_MALLOC_PREFIX=profiler -DMOZ_VTUNE_INSTRUMENTATION -DUNICODE -D_UNICODE -D_CRT_RAND_S -DCERT_CHAIN_PARA_HAS_EXTRA_FIELDS -D_SECURE_ATL -DCHROMIUM_BUILD -DU_STATIC_IMPLEMENTATION -DOS_WIN=1 -DWIN32 -D_WIN32 -D_WINDOWS -DWIN32_LEAN_AND_MEAN -DWINAPI_NO_BUNDLED_LIBRARIES -DMOZ_HAS_MOZGLUE -DMOZILLA_INTERNAL_API -DIMPL_LIBXUL -DSTATIC_EXPORTABLE_JS_API -I/builds/worker/checkouts/gecko/tools/profiler -I/builds/worker/workspace/obj-build/tools/profiler -I/builds/worker/checkouts/gecko/caps -I/builds/worker/checkouts/gecko/docshell/base -I/builds/worker/checkouts/gecko/ipc/chromium/src -I/builds/worker/checkouts/gecko/mozglue/linker -I/builds/worker/checkouts/gecko/netwerk/base -I/builds/worker/checkouts/gecko/netwerk/protocol/http -I/builds/worker/checkouts/gecko/toolkit/crashreporter/google-breakpad/src -I/builds/worker/checkouts/gecko/tools/profiler/core -I/builds/worker/checkouts/gecko/tools/profiler/gecko -I/builds/worker/checkouts/gecko/xpcom/base -I/builds/worker/workspace/obj-build/ipc/ipdl/_ipdlheaders -I/builds/worker/checkouts/gecko/ipc/chromium/src -I/builds/worker/workspace/obj-build/dist/include -I/builds/worker/workspace/obj-build/dist/include/nspr -I/builds/worker/workspace/obj-build/dist/include/nss -DMOZILLA_CLIENT -include /builds/worker/workspace/obj-build/mozilla-config.h -Qunused-arguments -Qunused-arguments -Wall -Wbitfield-enum-conversion -Wdeprecated-this-capture -Wempty-body -Wformat-type-confusion -Wignored-qualifiers -Wpointer-arith -Wshadow-field-in-constructor-modified -Wsign-compare -Wtype-limits -Wno-error=tautological-type-limit-compare -Wunreachable-code -Wunreachable-code-return -Wunused-but-set-parameter -Wno-invalid-offsetof -Wclass-varargs -Wempty-init-stmt -Wfloat-overflow-conversion -Wfloat-zero-conversion -Wloop-analysis -Wno-range-loop-analysis -Wc++2a-compat -Wcomma -Wenum-compare-conditional -Wimplicit-fallthrough -Wstring-conversion -Wno-inline-new-delete -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=backend-plugin -Wno-error=free-nonheap-object -Wno-error=return-std-move -Wno-error=atomic-alignment -Wno-error=deprecated-copy -Wno-unknown-pragmas -Wno-unused-function -Wno-conversion-null -Wno-switch -Wno-enum-compare -Wno-gnu-zero-variadic-macro-arguments -Wno-psabi -Wthread-safety -Wno-unknown-warning-option -fno-sized-deallocation -fno-aligned-new -fms-extensions -fcrash-diagnostics-dir=/builds/worker/artifacts -D_HAS_EXCEPTIONS=0 -fno-exceptions -Wno-incompatible-ms-struct -mstackrealign -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -pipe -g -gcodeview -O2 -fno-omit-frame-pointer -funwind-tables -Wno-error=stack-protector -Wno-ignored-qualifiers -fno-strict-aliasing -ffp-contract=off  -MD -MP -MF .deps/Unified_cpp_tools_profiler0.o.pp   Unified_cpp_tools_profiler0.cpp
[task 2022-06-29T14:19:36.800Z] 14:19:36     INFO -  In file included from Unified_cpp_tools_profiler0.cpp:20:
[task 2022-06-29T14:19:36.800Z] 14:19:36     INFO -  /builds/worker/checkouts/gecko/tools/profiler/core/PowerCounters-win.cpp:17:10: fatal error: 'emi.h' file not found
[task 2022-06-29T14:19:36.800Z] 14:19:36     INFO -  #include <emi.h>
[task 2022-06-29T14:19:36.800Z] 14:19:36     INFO -           ^~~~~~~
[task 2022-06-29T14:19:36.800Z] 14:19:36     INFO -  1 error generated.
[task 2022-06-29T14:19:36.800Z] 14:19:36    ERROR -  gmake[4]: *** [/builds/worker/checkouts/gecko/config/rules.mk:668: Unified_cpp_tools_profiler0.o] Error 1
[task 2022-06-29T14:19:36.800Z] 14:19:36     INFO -  gmake[4]: Leaving directory '/builds/worker/workspace/obj-build/tools/profiler'
[task 2022-06-29T14:19:36.800Z] 14:19:36    ERROR -  gmake[3]: *** [/builds/worker/checkouts/gecko/config/recurse.mk:72: tools/profiler/target-objects] Error 2
[task 2022-06-29T14:19:36.800Z] 14:19:36     INFO -  gmake[3]: *** Waiting for unfinished jobs....
[task 2022-06-29T14:19:36.806Z] 14:19:36     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/netwerk/protocol/http'
[task 2022-06-29T14:19:36.806Z] 14:19:36     INFO -  netwerk/protocol/http/Unified_cpp_protocol_http6.o
[task 2022-06-29T14:19:36.807Z] 14:19:36     INFO -  gmake[4]: Leaving directory '/builds/worker/workspace/obj-build/netwerk/protocol/http'
[task 2022-06-29T14:19:45.786Z] 14:19:45     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/netwerk/protocol/http'
[task 2022-06-29T14:19:45.790Z] 14:19:45     INFO -  /builds/worker/fetches/sccache/sccache /builds/worker/fetches/clang/bin/i686-w64-mingw32-clang++ -std=gnu++17 -o Unified_cpp_protocol_http5.o -c  -I/builds/worker/workspace/obj-build/dist/stl_wrappers -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -ftrivial-auto-var-init=pattern -DDEBUG=1 -DUNICODE -D_UNICODE -D_CRT_RAND_S -DCERT_CHAIN_PARA_HAS_EXTRA_FIELDS -D_SECURE_ATL -DCHROMIUM_BUILD -DU_STATIC_IMPLEMENTATION -DOS_WIN=1 -DWIN32 -D_WIN32 -D_WINDOWS -DWIN32_LEAN_AND_MEAN -DWINAPI_NO_BUNDLED_LIBRARIES -DMOZ_HAS_MOZGLUE -DMOZILLA_INTERNAL_API -DIMPL_LIBXUL -DSTATIC_EXPORTABLE_JS_API -I/builds/worker/checkouts/gecko/netwerk/protocol/http -I/builds/worker/workspace/obj-build/netwerk/protocol/http -I/builds/worker/workspace/obj-build/ipc/ipdl/_ipdlheaders -I/builds/worker/checkouts/gecko/ipc/chromium/src -I/builds/worker/checkouts/gecko/dom/base -I/builds/worker/checkouts/gecko/netwerk/base -I/builds/worker/checkouts/gecko/netwerk/cookie -I/builds/worker/checkouts/gecko/netwerk/dns -I/builds/worker/checkouts/gecko/netwerk/ipc -I/builds/worker/checkouts/gecko/netwerk/socket/neqo_glue -I/builds/worker/checkouts/gecko/netwerk/url-classifier -I/builds/worker/checkouts/gecko/extensions/auth -I/builds/worker/workspace/obj-build/dist/include -I/builds/worker/workspace/obj-build/dist/include/nspr -I/builds/worker/workspace/obj-build/dist/include/nss -DMOZILLA_CLIENT -include /builds/worker/workspace/obj-build/mozilla-config.h -Qunused-arguments -Qunused-arguments -Wall -Wbitfield-enum-conversion -Wdeprecated-this-capture -Wempty-body -Wformat-type-confusion -Wignored-qualifiers -Wpointer-arith -Wshadow-field-in-constructor-modified -Wsign-compare -Wtype-limits -Wno-error=tautological-type-limit-compare -Wunreachable-code -Wunreachable-code-return -Wunused-but-set-parameter -Wno-invalid-offsetof -Wclass-varargs -Wempty-init-stmt -Wfloat-overflow-conversion -Wfloat-zero-conversion -Wloop-analysis -Wno-range-loop-analysis -Wc++2a-compat -Wcomma -Wenum-compare-conditional -Wimplicit-fallthrough -Wstring-conversion -Wno-inline-new-delete -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=backend-plugin -Wno-error=free-nonheap-object -Wno-error=return-std-move -Wno-error=atomic-alignment -Wno-error=deprecated-copy -Wno-unknown-pragmas -Wno-unused-function -Wno-conversion-null -Wno-switch -Wno-enum-compare -Wno-gnu-zero-variadic-macro-arguments -Wno-psabi -Wthread-safety -Wno-unknown-warning-option -fno-sized-deallocation -fno-aligned-new -fms-extensions -fcrash-diagnostics-dir=/builds/worker/artifacts -D_HAS_EXCEPTIONS=0 -fno-exceptions -Wno-incompatible-ms-struct -mstackrealign -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -pipe -g -gcodeview -O2 -fno-omit-frame-pointer -funwind-tables -fno-strict-aliasing -ffp-contract=off  -MD -MP -MF .deps/Unified_cpp_protocol_http5.o.pp   Unified_cpp_protocol_http5.cpp
[task 2022-06-29T14:19:45.790Z] 14:19:45     INFO -  gmake[4]: Leaving directory '/builds/worker/workspace/obj-build/netwerk/protocol/http'
[task 2022-06-29T14:19:45.790Z] 14:19:45     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/toolkit/xre'
[task 2022-06-29T14:19:45.790Z] 14:19:45     INFO -  toolkit/xre/Unified_cpp_toolkit_xre0.o
[task 2022-06-29T14:19:45.790Z] 14:19:45     INFO -  gmake[4]: Leaving directory '/builds/worker/workspace/obj-build/toolkit/xre'

Fixed by backout: https://hg.mozilla.org/integration/autoland/rev/1e1a96a0e4f35905c4a7c559827b8631b8f45c04