[INFO] crate hawktracer-converter 0.0.1 is already in cache
[INFO] extracting crate hawktracer-converter 0.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/hawktracer-converter/0.0.1
[INFO] extracting crate hawktracer-converter 0.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hawktracer-converter/0.0.1
[INFO] validating manifest of hawktracer-converter-0.0.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hawktracer-converter-0.0.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hawktracer-converter-0.0.1
[INFO] finished frobbing hawktracer-converter-0.0.1
[INFO] frobbed toml for hawktracer-converter-0.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/hawktracer-converter/0.0.1/Cargo.toml
[INFO] started frobbing hawktracer-converter-0.0.1
[INFO] finished frobbing hawktracer-converter-0.0.1
[INFO] frobbed toml for hawktracer-converter-0.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hawktracer-converter/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hawktracer-converter-0.0.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/hawktracer-converter/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 522fb7ee48380f5ab45086ede96ebd617692dfeef70ef751a3d3b298f15717e1
[INFO] running `"docker" "start" "-a" "522fb7ee48380f5ab45086ede96ebd617692dfeef70ef751a3d3b298f15717e1"`
[INFO] [stderr]    Compiling hawktracer-parser v0.2.2
[INFO] [stderr]    Compiling hawktracer-converter v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/converters/flamegraph_converter.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         HTMLFlameGraphWritter::new(&mut self.writable).write_flamegraph(&super_root);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `"docker" "inspect" "522fb7ee48380f5ab45086ede96ebd617692dfeef70ef751a3d3b298f15717e1"`
[INFO] running `"docker" "rm" "-f" "522fb7ee48380f5ab45086ede96ebd617692dfeef70ef751a3d3b298f15717e1"`
[INFO] [stdout] 522fb7ee48380f5ab45086ede96ebd617692dfeef70ef751a3d3b298f15717e1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/hawktracer-converter/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 42d39aaadfbfc0568b1e366855075b041201a5bcfe50870a6528914be082a1f8
[INFO] running `"docker" "start" "-a" "42d39aaadfbfc0568b1e366855075b041201a5bcfe50870a6528914be082a1f8"`
[INFO] [stderr]    Compiling hawktracer-converter v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/converters/flamegraph_converter.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         HTMLFlameGraphWritter::new(&mut self.writable).write_flamegraph(&super_root);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/label_mapping.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         map.load_from_file(&path.to_str().unwrap());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/label_mapping.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |         map.load_from_file(&path.to_str().unwrap());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `"docker" "inspect" "42d39aaadfbfc0568b1e366855075b041201a5bcfe50870a6528914be082a1f8"`
[INFO] running `"docker" "rm" "-f" "42d39aaadfbfc0568b1e366855075b041201a5bcfe50870a6528914be082a1f8"`
[INFO] [stdout] 42d39aaadfbfc0568b1e366855075b041201a5bcfe50870a6528914be082a1f8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/hawktracer-converter/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 6c719c90ef8f94576c8ee56999538babe46256e30eee592c1cc87c86e1f61eec
[INFO] running `"docker" "start" "-a" "6c719c90ef8f94576c8ee56999538babe46256e30eee592c1cc87c86e1f61eec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hawktracer_converter_lib-6371517e2e3b390f
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test label_mapping::tests::getter_should_not_return_value_if_field_does_not_exist ... ok
[INFO] [stdout] test label_mapping::tests::getter_should_not_return_value_if_value_is_invalid ... ok
[INFO] [stdout] test label_mapping::tests::load_from_file_corrupted_file_should_ignore_invalid_values ... ok
[INFO] [stdout] test label_mapping::tests::load_from_file_should_fail_if_file_does_not_exist ... ok
[INFO] [stdout] test label_mapping::tests::getter_should_return_value_if_value_exists ... ok
[INFO] [stdout] test label_mapping::tests::map_should_return_label_if_mapping_exist ... ok
[INFO] [stdout] test label_mapping::tests::map_should_return_number_if_mapping_does_not_exist ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hawktracer_converter-9149c2224b9e3bba
[INFO] [stdout] test label_mapping::tests::load_from_file_valid_file_should_load_mapping ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hawktracer_converter_lib
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6c719c90ef8f94576c8ee56999538babe46256e30eee592c1cc87c86e1f61eec"`
[INFO] running `"docker" "rm" "-f" "6c719c90ef8f94576c8ee56999538babe46256e30eee592c1cc87c86e1f61eec"`
[INFO] [stdout] 6c719c90ef8f94576c8ee56999538babe46256e30eee592c1cc87c86e1f61eec