[INFO] fetching crate tracing-env-logger 0.0.0...
[INFO] extracting crate tracing-env-logger 0.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/tracing-env-logger/0.0.0
[INFO] extracting crate tracing-env-logger 0.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tracing-env-logger/0.0.0
[INFO] validating manifest of tracing-env-logger-0.0.0 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 tracing-env-logger-0.0.0 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 tracing-env-logger-0.0.0
[INFO] finished frobbing tracing-env-logger-0.0.0
[INFO] frobbed toml for tracing-env-logger-0.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tracing-env-logger/0.0.0/Cargo.toml
[INFO] started frobbing tracing-env-logger-0.0.0
[INFO] finished frobbing tracing-env-logger-0.0.0
[INFO] frobbed toml for tracing-env-logger-0.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tracing-env-logger/0.0.0/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 tracing-env-logger-0.0.0 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-3/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/tracing-env-logger/0.0.0:/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] 92a8e3cbb8ce7c80ded696522773aba6359166801b96cccd24010cfbcce5d5c4
[INFO] running `"docker" "start" "-a" "92a8e3cbb8ce7c80ded696522773aba6359166801b96cccd24010cfbcce5d5c4"`
[INFO] [stderr]    Compiling tracing-env-logger v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `"docker" "inspect" "92a8e3cbb8ce7c80ded696522773aba6359166801b96cccd24010cfbcce5d5c4"`
[INFO] running `"docker" "rm" "-f" "92a8e3cbb8ce7c80ded696522773aba6359166801b96cccd24010cfbcce5d5c4"`
[INFO] [stdout] 92a8e3cbb8ce7c80ded696522773aba6359166801b96cccd24010cfbcce5d5c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/tracing-env-logger/0.0.0:/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] ec21cff708292974e6c61ec12cce234ff9fe11409ddd2ca721d1861d9981bf9c
[INFO] running `"docker" "start" "-a" "ec21cff708292974e6c61ec12cce234ff9fe11409ddd2ca721d1861d9981bf9c"`
[INFO] [stderr]    Compiling tracing-env-logger v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "ec21cff708292974e6c61ec12cce234ff9fe11409ddd2ca721d1861d9981bf9c"`
[INFO] running `"docker" "rm" "-f" "ec21cff708292974e6c61ec12cce234ff9fe11409ddd2ca721d1861d9981bf9c"`
[INFO] [stdout] ec21cff708292974e6c61ec12cce234ff9fe11409ddd2ca721d1861d9981bf9c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/tracing-env-logger/0.0.0:/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] 5e93a3a5f522e56adba96926e9819adfddd1818a706edda6136e8359d996c84a
[INFO] running `"docker" "start" "-a" "5e93a3a5f522e56adba96926e9819adfddd1818a706edda6136e8359d996c84a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tracing_env_logger-d02d944b16f1e511
[INFO] [stderr]    Doc-tests tracing-env-logger
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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] running `"docker" "inspect" "5e93a3a5f522e56adba96926e9819adfddd1818a706edda6136e8359d996c84a"`
[INFO] running `"docker" "rm" "-f" "5e93a3a5f522e56adba96926e9819adfddd1818a706edda6136e8359d996c84a"`
[INFO] [stdout] 5e93a3a5f522e56adba96926e9819adfddd1818a706edda6136e8359d996c84a