rohan@rohan:~/src/mozilla-central$ ./mach gtest Telemetry*
 0:00.12 /usr/bin/make -C testing/gtest -j4 -s gtest
 0:04.50 force-cargo-library-build
 0:07.26 warning: unused manifest key: patch.crates-io.serde_derive.feature
 0:17.62 force-cargo-library-build
 0:17.84 warning: unused manifest key: patch.crates-io.serde_derive.feature
 0:18.14     Blocking waiting for file lock on build directory
 0:23.40    Compiling mp4parse-gtest v0.1.0 (file:///home/rohan/src/mozilla-central/dom/media/gtest)
 0:29.25    Compiling nsstring-gtest v0.1.0 (file:///home/rohan/src/mozilla-central/xpcom/rust/gtest/nsstring)
 0:31.88    Compiling gkrust-shared v0.1.0 (file:///home/rohan/src/mozilla-central/toolkit/library/rust/shared)
 0:45.47    Compiling gkrust-gtest v0.1.0 (file:///home/rohan/src/mozilla-central/toolkit/library/gtest/rust)
 0:55.14 note: link against the following native artifacts when linking against this static library
 0:55.14
 0:55.14 note: This list will not be printed by default. Please add --print=native-static-libs if you need this information
 0:55.14
 0:55.14 note: library: util
 0:55.14
 0:55.14 note: library: util
 0:55.14
 0:55.14 note: library: dl
 0:55.14
 0:55.14 note: library: rt
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 0:55.14 note: library: pthread
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 0:55.14 note: library: util
 0:55.14
 0:55.46     Finished release [optimized] target(s) in 32.5 secs
 0:55.90     Finished release [optimized] target(s) in 0.0 secs
 0:57.47 symverscript
 0:57.93 libxul.so
 3:29.73 /home/rohan/src/mozilla-central/obj-x86_64-pc-linux-gnu/dist/bin/firefox -unittest --gtest_death_test_style=threadsafe
Running GTest tests...
Note: Google Test filter = Telemetry*
[==========] Running 12 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 12 tests from TelemetryTestFixture
[ RUN      ] TelemetryTestFixture.AccumulateCountHistogram
[       OK ] TelemetryTestFixture.AccumulateCountHistogram (228 ms)
[ RUN      ] TelemetryTestFixture.AccumulateKeyedCountHistogram
[       OK ] TelemetryTestFixture.AccumulateKeyedCountHistogram (0 ms)
[ RUN      ] TelemetryTestFixture.TestKeyedKeysHistogram
[       OK ] TelemetryTestFixture.TestKeyedKeysHistogram (1 ms)
[ RUN      ] TelemetryTestFixture.AccumulateCategoricalHistogram
[       OK ] TelemetryTestFixture.AccumulateCategoricalHistogram (0 ms)
[ RUN      ] TelemetryTestFixture.AccumulateKeyedCategoricalHistogram
[       OK ] TelemetryTestFixture.AccumulateKeyedCategoricalHistogram (1 ms)
[ RUN      ] TelemetryTestFixture.ScalarUnsigned
[       OK ] TelemetryTestFixture.ScalarUnsigned (0 ms)
[ RUN      ] TelemetryTestFixture.ScalarBoolean
[       OK ] TelemetryTestFixture.ScalarBoolean (0 ms)
[ RUN      ] TelemetryTestFixture.ScalarString
[       OK ] TelemetryTestFixture.ScalarString (0 ms)
[ RUN      ] TelemetryTestFixture.KeyedScalarUnsigned
[       OK ] TelemetryTestFixture.KeyedScalarUnsigned (0 ms)
[ RUN      ] TelemetryTestFixture.KeyedScalarBoolean
[       OK ] TelemetryTestFixture.KeyedScalarBoolean (0 ms)
[ RUN      ] TelemetryTestFixture.NonMainThreadAdd
[       OK ] TelemetryTestFixture.NonMainThreadAdd (1 ms)
[ RUN      ] TelemetryTestFixture.ScalarUnknownID
[       OK ] TelemetryTestFixture.ScalarUnknownID (0 ms)
[----------] 12 tests from TelemetryTestFixture (231 ms total)

[----------] Global test environment tear-down
[==========] 12 tests from 1 test case ran. (231 ms total)
[  PASSED  ] 12 tests.
Finished running GTest tests.