[INFO] crate empty 0.0.4 is already in cache
[INFO] extracting crate empty 0.0.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/empty/0.0.4
[INFO] extracting crate empty 0.0.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/empty/0.0.4
[INFO] validating manifest of empty-0.0.4 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 empty-0.0.4 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 empty-0.0.4
[INFO] finished frobbing empty-0.0.4
[INFO] frobbed toml for empty-0.0.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/empty/0.0.4/Cargo.toml
[INFO] started frobbing empty-0.0.4
[INFO] finished frobbing empty-0.0.4
[INFO] frobbed toml for empty-0.0.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/empty/0.0.4/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 empty-0.0.4 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-2/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/empty/0.0.4:/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] 0b963edb1aca682a1f499465ac97e7ec966f76d2522b42def4e59a39b501d73f
[INFO] running `"docker" "start" "-a" "0b963edb1aca682a1f499465ac97e7ec966f76d2522b42def4e59a39b501d73f"`
[INFO] [stderr]    Compiling empty v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `"docker" "inspect" "0b963edb1aca682a1f499465ac97e7ec966f76d2522b42def4e59a39b501d73f"`
[INFO] running `"docker" "rm" "-f" "0b963edb1aca682a1f499465ac97e7ec966f76d2522b42def4e59a39b501d73f"`
[INFO] [stdout] 0b963edb1aca682a1f499465ac97e7ec966f76d2522b42def4e59a39b501d73f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/empty/0.0.4:/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] e0739bcbcb3a6ab7eea540cc2044063f15d0e3158164d4898b22dbe38d864873
[INFO] running `"docker" "start" "-a" "e0739bcbcb3a6ab7eea540cc2044063f15d0e3158164d4898b22dbe38d864873"`
[INFO] [stderr]    Compiling empty v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "e0739bcbcb3a6ab7eea540cc2044063f15d0e3158164d4898b22dbe38d864873"`
[INFO] running `"docker" "rm" "-f" "e0739bcbcb3a6ab7eea540cc2044063f15d0e3158164d4898b22dbe38d864873"`
[INFO] [stdout] e0739bcbcb3a6ab7eea540cc2044063f15d0e3158164d4898b22dbe38d864873
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/empty/0.0.4:/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] ab5df3ce2a613d786fa6c82125c2efca63a5fd28bce2ee1712b59146b90780da
[INFO] running `"docker" "start" "-a" "ab5df3ce2a613d786fa6c82125c2efca63a5fd28bce2ee1712b59146b90780da"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/empty-6688c2730336a3c1
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::len ... ok
[INFO] [stdout] test test::it_works_iterator ... ok
[INFO] [stdout] test test::it_works ... ok
[INFO] [stdout] test test::it_works_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests empty
[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" "ab5df3ce2a613d786fa6c82125c2efca63a5fd28bce2ee1712b59146b90780da"`
[INFO] running `"docker" "rm" "-f" "ab5df3ce2a613d786fa6c82125c2efca63a5fd28bce2ee1712b59146b90780da"`
[INFO] [stdout] ab5df3ce2a613d786fa6c82125c2efca63a5fd28bce2ee1712b59146b90780da