[INFO] crate json_io 0.3.0 is already in cache
[INFO] extracting crate json_io 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/json_io/0.3.0
[INFO] extracting crate json_io 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/json_io/0.3.0
[INFO] validating manifest of json_io-0.3.0 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_io-0.3.0 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_io-0.3.0
[INFO] finished frobbing json_io-0.3.0
[INFO] frobbed toml for json_io-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/json_io/0.3.0/Cargo.toml
[INFO] started frobbing json_io-0.3.0
[INFO] finished frobbing json_io-0.3.0
[INFO] frobbed toml for json_io-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/json_io/0.3.0/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_io-0.3.0 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-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/json_io/0.3.0:/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] d0fe081573f0685068a65e6d689d61789c26e3333ed3f860c1c1f2b1fe2e6a16
[INFO] running `"docker" "start" "-a" "d0fe081573f0685068a65e6d689d61789c26e3333ed3f860c1c1f2b1fe2e6a16"`
[INFO] [stderr]    Compiling json_io v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "d0fe081573f0685068a65e6d689d61789c26e3333ed3f860c1c1f2b1fe2e6a16"`
[INFO] running `"docker" "rm" "-f" "d0fe081573f0685068a65e6d689d61789c26e3333ed3f860c1c1f2b1fe2e6a16"`
[INFO] [stdout] d0fe081573f0685068a65e6d689d61789c26e3333ed3f860c1c1f2b1fe2e6a16
[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/json_io/0.3.0:/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] d84e0b4acbdf58738a6865127e7d2c3ad4d52932fca1bcc5fbc72675e919f38f
[INFO] running `"docker" "start" "-a" "d84e0b4acbdf58738a6865127e7d2c3ad4d52932fca1bcc5fbc72675e919f38f"`
[INFO] [stderr]    Compiling json_io v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "d84e0b4acbdf58738a6865127e7d2c3ad4d52932fca1bcc5fbc72675e919f38f"`
[INFO] running `"docker" "rm" "-f" "d84e0b4acbdf58738a6865127e7d2c3ad4d52932fca1bcc5fbc72675e919f38f"`
[INFO] [stdout] d84e0b4acbdf58738a6865127e7d2c3ad4d52932fca1bcc5fbc72675e919f38f
[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/json_io/0.3.0:/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] 44ac37e60a5553230a32244e6e1b145dd94943999e4d335ab0b16e06d7f52652
[INFO] running `"docker" "start" "-a" "44ac37e60a5553230a32244e6e1b145dd94943999e4d335ab0b16e06d7f52652"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_io-06cdcf5fb6a68d18
[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_io
[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" "44ac37e60a5553230a32244e6e1b145dd94943999e4d335ab0b16e06d7f52652"`
[INFO] running `"docker" "rm" "-f" "44ac37e60a5553230a32244e6e1b145dd94943999e4d335ab0b16e06d7f52652"`
[INFO] [stdout] 44ac37e60a5553230a32244e6e1b145dd94943999e4d335ab0b16e06d7f52652