[INFO] fetching crate structlog 0.1.2...
[INFO] extracting crate structlog 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/structlog/0.1.2
[INFO] extracting crate structlog 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/structlog/0.1.2
[INFO] validating manifest of structlog-0.1.2 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 structlog-0.1.2 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 structlog-0.1.2
[INFO] finished frobbing structlog-0.1.2
[INFO] frobbed toml for structlog-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/structlog/0.1.2/Cargo.toml
[INFO] started frobbing structlog-0.1.2
[INFO] finished frobbing structlog-0.1.2
[INFO] frobbed toml for structlog-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/structlog/0.1.2/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 structlog-0.1.2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/structlog/0.1.2:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 9f77072441b2f51dabf9e21ba5c890dfa93ba5fa2bf40376810cf3a7dae3ad16
[INFO] running `"docker" "start" "-a" "9f77072441b2f51dabf9e21ba5c890dfa93ba5fa2bf40376810cf3a7dae3ad16"`
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling structlog v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.68s
[INFO] running `"docker" "inspect" "9f77072441b2f51dabf9e21ba5c890dfa93ba5fa2bf40376810cf3a7dae3ad16"`
[INFO] running `"docker" "rm" "-f" "9f77072441b2f51dabf9e21ba5c890dfa93ba5fa2bf40376810cf3a7dae3ad16"`
[INFO] [stdout] 9f77072441b2f51dabf9e21ba5c890dfa93ba5fa2bf40376810cf3a7dae3ad16
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/structlog/0.1.2:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] eaf7942bbf4d38ac3e46e05b0560e6363fd8984550613c8ca554610cf652625f
[INFO] running `"docker" "start" "-a" "eaf7942bbf4d38ac3e46e05b0560e6363fd8984550613c8ca554610cf652625f"`
[INFO] [stderr]    Compiling structlog v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `"docker" "inspect" "eaf7942bbf4d38ac3e46e05b0560e6363fd8984550613c8ca554610cf652625f"`
[INFO] running `"docker" "rm" "-f" "eaf7942bbf4d38ac3e46e05b0560e6363fd8984550613c8ca554610cf652625f"`
[INFO] [stdout] eaf7942bbf4d38ac3e46e05b0560e6363fd8984550613c8ca554610cf652625f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/structlog/0.1.2:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 85723c8be3f361c5c748de4c3c06cf48c9104c62cca576d976171e8a6741f12e
[INFO] running `"docker" "start" "-a" "85723c8be3f361c5c748de4c3c06cf48c9104c62cca576d976171e8a6741f12e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/structlog-b3a910d107af2f08
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test event::test_add_field ... ok
[INFO] [stdout] test event::test_event_display ... ok
[INFO] [stdout] test event::test_add_field_in_chain ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/integration_tests-c5900307816442b8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_create_event ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests structlog
[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" "85723c8be3f361c5c748de4c3c06cf48c9104c62cca576d976171e8a6741f12e"`
[INFO] running `"docker" "rm" "-f" "85723c8be3f361c5c748de4c3c06cf48c9104c62cca576d976171e8a6741f12e"`
[INFO] [stdout] 85723c8be3f361c5c748de4c3c06cf48c9104c62cca576d976171e8a6741f12e