[INFO] crate json_logger 0.1.0 is already in cache
[INFO] extracting crate json_logger 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/json_logger/0.1.0
[INFO] extracting crate json_logger 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/json_logger/0.1.0
[INFO] validating manifest of json_logger-0.1.0 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 json_logger-0.1.0 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 json_logger-0.1.0
[INFO] finished frobbing json_logger-0.1.0
[INFO] frobbed toml for json_logger-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/json_logger/0.1.0/Cargo.toml
[INFO] started frobbing json_logger-0.1.0
[INFO] finished frobbing json_logger-0.1.0
[INFO] frobbed toml for json_logger-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/json_logger/0.1.0/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 json_logger-0.1.0 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-0/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/json_logger/0.1.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b56d20b4d4fcec312e3a7a31ad1d9bdb157afd6b4d8afb1f8d33d6c7fe655fa1
[INFO] running `"docker" "start" "-a" "b56d20b4d4fcec312e3a7a31ad1d9bdb157afd6b4d8afb1f8d33d6c7fe655fa1"`
[INFO] [stderr]    Compiling json_logger v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "b56d20b4d4fcec312e3a7a31ad1d9bdb157afd6b4d8afb1f8d33d6c7fe655fa1"`
[INFO] running `"docker" "rm" "-f" "b56d20b4d4fcec312e3a7a31ad1d9bdb157afd6b4d8afb1f8d33d6c7fe655fa1"`
[INFO] [stdout] b56d20b4d4fcec312e3a7a31ad1d9bdb157afd6b4d8afb1f8d33d6c7fe655fa1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/json_logger/0.1.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ee4ed91d1346d7a045707739976cbd1552a667898a5f9b9172945d04cbe3e671
[INFO] running `"docker" "start" "-a" "ee4ed91d1346d7a045707739976cbd1552a667898a5f9b9172945d04cbe3e671"`
[INFO] [stderr]    Compiling json_logger v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "ee4ed91d1346d7a045707739976cbd1552a667898a5f9b9172945d04cbe3e671"`
[INFO] running `"docker" "rm" "-f" "ee4ed91d1346d7a045707739976cbd1552a667898a5f9b9172945d04cbe3e671"`
[INFO] [stdout] ee4ed91d1346d7a045707739976cbd1552a667898a5f9b9172945d04cbe3e671
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/json_logger/0.1.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c02dc96076573a147d7bd304f166a9d054a261a53ab7e9b156e86d34b7a20229
[INFO] running `"docker" "start" "-a" "c02dc96076573a147d7bd304f166a9d054a261a53ab7e9b156e86d34b7a20229"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_logger-fe1e8391b7168430
[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 json_logger
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 7) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c02dc96076573a147d7bd304f166a9d054a261a53ab7e9b156e86d34b7a20229"`
[INFO] running `"docker" "rm" "-f" "c02dc96076573a147d7bd304f166a9d054a261a53ab7e9b156e86d34b7a20229"`
[INFO] [stdout] c02dc96076573a147d7bd304f166a9d054a261a53ab7e9b156e86d34b7a20229