[INFO] crate mlzlog 0.5.1 is already in cache
[INFO] extracting crate mlzlog 0.5.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/mlzlog/0.5.1
[INFO] extracting crate mlzlog 0.5.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mlzlog/0.5.1
[INFO] validating manifest of mlzlog-0.5.1 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 mlzlog-0.5.1 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 mlzlog-0.5.1
[INFO] finished frobbing mlzlog-0.5.1
[INFO] frobbed toml for mlzlog-0.5.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mlzlog/0.5.1/Cargo.toml
[INFO] started frobbing mlzlog-0.5.1
[INFO] finished frobbing mlzlog-0.5.1
[INFO] frobbed toml for mlzlog-0.5.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mlzlog/0.5.1/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mlzlog-0.5.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mlzlog/0.5.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9865bd7c88f9b3b542c556047a67d0ecda88af924951e4240f6c85b3fdf0daa3
[INFO] running `"docker" "start" "-a" "9865bd7c88f9b3b542c556047a67d0ecda88af924951e4240f6c85b3fdf0daa3"`
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling log4rs v0.8.3
[INFO] [stderr]    Compiling mlzlog v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:67:57
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:138:57
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Send + Sync>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `"docker" "inspect" "9865bd7c88f9b3b542c556047a67d0ecda88af924951e4240f6c85b3fdf0daa3"`
[INFO] running `"docker" "rm" "-f" "9865bd7c88f9b3b542c556047a67d0ecda88af924951e4240f6c85b3fdf0daa3"`
[INFO] [stdout] 9865bd7c88f9b3b542c556047a67d0ecda88af924951e4240f6c85b3fdf0daa3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mlzlog/0.5.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7de01c4cd3fdffcf00643eff301a95c5051189367fa50b4076196e9205052587
[INFO] running `"docker" "start" "-a" "7de01c4cd3fdffcf00643eff301a95c5051189367fa50b4076196e9205052587"`
[INFO] [stderr]    Compiling mlzlog v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:67:57
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:138:57
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Send + Sync>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "7de01c4cd3fdffcf00643eff301a95c5051189367fa50b4076196e9205052587"`
[INFO] running `"docker" "rm" "-f" "7de01c4cd3fdffcf00643eff301a95c5051189367fa50b4076196e9205052587"`
[INFO] [stdout] 7de01c4cd3fdffcf00643eff301a95c5051189367fa50b4076196e9205052587
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mlzlog/0.5.1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 0a5230e012447efdd90d4ba9a5959563d99722668f2ff9c05a03157d7a276f87
[INFO] running `"docker" "start" "-a" "0a5230e012447efdd90d4ba9a5959563d99722668f2ff9c05a03157d7a276f87"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mlzlog-22f0af5ab125c6c1
[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 mlzlog
[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" "0a5230e012447efdd90d4ba9a5959563d99722668f2ff9c05a03157d7a276f87"`
[INFO] running `"docker" "rm" "-f" "0a5230e012447efdd90d4ba9a5959563d99722668f2ff9c05a03157d7a276f87"`
[INFO] [stdout] 0a5230e012447efdd90d4ba9a5959563d99722668f2ff9c05a03157d7a276f87