[INFO] fetching crate drux 0.7.2...
[INFO] extracting crate drux 0.7.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/drux/0.7.2
[INFO] extracting crate drux 0.7.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/drux/0.7.2
[INFO] validating manifest of drux-0.7.2 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 drux-0.7.2 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 drux-0.7.2
[INFO] finished frobbing drux-0.7.2
[INFO] frobbed toml for drux-0.7.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/drux/0.7.2/Cargo.toml
[INFO] started frobbing drux-0.7.2
[INFO] finished frobbing drux-0.7.2
[INFO] frobbed toml for drux-0.7.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/drux/0.7.2/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 drux-0.7.2 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-6/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/drux/0.7.2:/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] 1a55cdeabc8c2f9eccade358961da8a0f46fcc71f3c911164ecd09318d7d867e
[INFO] running `"docker" "start" "-a" "1a55cdeabc8c2f9eccade358961da8a0f46fcc71f3c911164ecd09318d7d867e"`
[INFO] [stderr]    Compiling git2 v0.8.0
[INFO] [stderr]    Compiling drux v0.7.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.27s
[INFO] running `"docker" "inspect" "1a55cdeabc8c2f9eccade358961da8a0f46fcc71f3c911164ecd09318d7d867e"`
[INFO] running `"docker" "rm" "-f" "1a55cdeabc8c2f9eccade358961da8a0f46fcc71f3c911164ecd09318d7d867e"`
[INFO] [stdout] 1a55cdeabc8c2f9eccade358961da8a0f46fcc71f3c911164ecd09318d7d867e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/drux/0.7.2:/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] 4abcdadcd2a4d88c37de76c40f9e21052d31629af7d852d0f0d9294914e85031
[INFO] running `"docker" "start" "-a" "4abcdadcd2a4d88c37de76c40f9e21052d31629af7d852d0f0d9294914e85031"`
[INFO] [stderr]    Compiling drux v0.7.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.53s
[INFO] running `"docker" "inspect" "4abcdadcd2a4d88c37de76c40f9e21052d31629af7d852d0f0d9294914e85031"`
[INFO] running `"docker" "rm" "-f" "4abcdadcd2a4d88c37de76c40f9e21052d31629af7d852d0f0d9294914e85031"`
[INFO] [stdout] 4abcdadcd2a4d88c37de76c40f9e21052d31629af7d852d0f0d9294914e85031
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/drux/0.7.2:/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] 2593b2f6b868316db82535dd18b46de201bfd660d83f543ced925b4c25e496be
[INFO] running `"docker" "start" "-a" "2593b2f6b868316db82535dd18b46de201bfd660d83f543ced925b4c25e496be"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/drux-5a842259d67161f7
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test cargo_info::tests::highest_version ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2593b2f6b868316db82535dd18b46de201bfd660d83f543ced925b4c25e496be"`
[INFO] running `"docker" "rm" "-f" "2593b2f6b868316db82535dd18b46de201bfd660d83f543ced925b4c25e496be"`
[INFO] [stdout] 2593b2f6b868316db82535dd18b46de201bfd660d83f543ced925b4c25e496be