[INFO] crate slog-extlog 5.2.1 is already in cache
[INFO] extracting crate slog-extlog 5.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/slog-extlog/5.2.1
[INFO] extracting crate slog-extlog 5.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slog-extlog/5.2.1
[INFO] validating manifest of slog-extlog-5.2.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of slog-extlog-5.2.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing slog-extlog-5.2.1
[INFO] finished frobbing slog-extlog-5.2.1
[INFO] frobbed toml for slog-extlog-5.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/slog-extlog/5.2.1/Cargo.toml
[INFO] started frobbing slog-extlog-5.2.1
[INFO] finished frobbing slog-extlog-5.2.1
[INFO] frobbed toml for slog-extlog-5.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slog-extlog/5.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing slog-extlog-5.2.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slog-extlog/5.2.1:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 6260f37b5fd7ab5ea30c27814e484069cd4bd220f8479fac2bde4616b931ca82
[INFO] running `"docker" "start" "-a" "6260f37b5fd7ab5ea30c27814e484069cd4bd220f8479fac2bde4616b931ca82"`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling iobuffer v0.1.0
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling slog-extlog v5.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.66s
[INFO] running `"docker" "inspect" "6260f37b5fd7ab5ea30c27814e484069cd4bd220f8479fac2bde4616b931ca82"`
[INFO] running `"docker" "rm" "-f" "6260f37b5fd7ab5ea30c27814e484069cd4bd220f8479fac2bde4616b931ca82"`
[INFO] [stdout] 6260f37b5fd7ab5ea30c27814e484069cd4bd220f8479fac2bde4616b931ca82
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slog-extlog/5.2.1:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] dd1c3ccde6260b376405a8215fd2b74829f9d0ea186d3461293f28d28a331ab6
[INFO] running `"docker" "start" "-a" "dd1c3ccde6260b376405a8215fd2b74829f9d0ea186d3461293f28d28a331ab6"`
[INFO] [stderr]    Compiling slog-extlog v5.2.1
[INFO] [stderr]    Compiling slog-extlog-derive v5.2.1
[INFO] [stderr]    Compiling slog-extlog v5.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.11s
[INFO] running `"docker" "inspect" "dd1c3ccde6260b376405a8215fd2b74829f9d0ea186d3461293f28d28a331ab6"`
[INFO] running `"docker" "rm" "-f" "dd1c3ccde6260b376405a8215fd2b74829f9d0ea186d3461293f28d28a331ab6"`
[INFO] [stdout] dd1c3ccde6260b376405a8215fd2b74829f9d0ea186d3461293f28d28a331ab6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slog-extlog/5.2.1:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 880dd447805a7bd3468c5451d8ae958ab395fd0dff49bcd61cf2f08fbdbf48bb
[INFO] running `"docker" "start" "-a" "880dd447805a7bd3468c5451d8ae958ab395fd0dff49bcd61cf2f08fbdbf48bb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slog_extlog-f0e896fe9d1b6e8e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test stats::tests::check_clone ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/demo_test-076e4f890f64b80d
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_main ... ok
[INFO] [stdout] test test_assert_json_matches ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stats_extlog-58a3ad14a2c4ec94
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test basic_extloggable_fixed_group ... ok
[INFO] [stdout] test basic_extloggable_grouped_by_string ... ok
[INFO] [stdout] test test_extloggable_bucket_counter_cumul_freq_high_value ... ok
[INFO] [stdout] test external_logging_works ... ok
[INFO] [stdout] test test_extloggable_bucket_counter_cumul_freq ... ok
[INFO] [stdout] test test_extloggable_bucket_counter_freq ... ok
[INFO] [stdout] test basic_extloggable_grouped_by_mixed ... ok
[INFO] [stdout] test test_extloggable_bucket_counter_freq_high_value ... ok
[INFO] [stdout] test test_extloggable_bucket_counter_grouped_cumul_freq ... ok
[INFO] [stdout] test test_extloggable_bucket_counter_grouped_freq ... ok
[INFO] [stdout] test test_extloggable_buckets_and_repeated_tags ... ok
[INFO] [stdout] test multiple_stats_defns ... ok
[INFO] [stdout] test test_extloggable_gauges_with_equality_condition ... ok
[INFO] [stdout] test test_extloggable_setto ... ok
[INFO] [stdout] test test_extloggable_strings ... ok
[INFO] [stdout] test test_set_slog_logger ... ok
[INFO] [stdout] test unwind_safety_works ... ok
[INFO] [stdout] test test_extloggable_field_gauges ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stats_query-fc2174f53cf99c8d
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test request_for_single_counter_with_groups_and_one_value ... ok
[INFO] [stdout] test request_for_single_counter ... ok
[INFO] [stdout] test request_for_multiple_metrics ... ok
[INFO] [stdout] test request_for_bucket_counter_freq_one_value ... ok
[INFO] [stdout] test request_for_single_counter_with_groups_and_two_values ... ok
[INFO] [stdout] test request_for_bucket_counter_cumul_freq ... ok
[INFO] [stdout] test request_for_single_gauge ... ok
[INFO] [stdout] test request_for_single_counter_with_groups_but_no_values ... ok
[INFO] [stdout] test request_for_bucket_counter_freq ... ok
[INFO] [stdout] test request_for_bucket_counter_with_groups_and_two_values ... ok
[INFO] [stdout] test request_for_single_gauge_with_groups_and_one_value ... ok
[INFO] [stdout] test request_for_many_metrics ... ok
[INFO] [stdout] test request_with_no_stats ... ok
[INFO] [stdout] test request_for_single_gauge_with_groups_but_no_values ... ok
[INFO] [stdout] test request_for_updated_metrics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slog-extlog
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - impl_value_wrapper (line 198) ... ignored
[INFO] [stdout] test src/lib.rs - impl_value_wrapper (line 206) ... ignored
[INFO] [stdout] test src/slog_test.rs - slog_test (line 13) ... ok
[INFO] [stdout] test src/stats.rs - stats::StatsConfigBuilder (line 527) ... ok
[INFO] [stdout] test src/lib.rs -  (line 78) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "880dd447805a7bd3468c5451d8ae958ab395fd0dff49bcd61cf2f08fbdbf48bb"`
[INFO] running `"docker" "rm" "-f" "880dd447805a7bd3468c5451d8ae958ab395fd0dff49bcd61cf2f08fbdbf48bb"`
[INFO] [stdout] 880dd447805a7bd3468c5451d8ae958ab395fd0dff49bcd61cf2f08fbdbf48bb