[INFO] crate groupby 0.1.5 is already in cache
[INFO] extracting crate groupby 0.1.5 into work/ex/beta-1.38-1/sources/1.37.0/reg/groupby/0.1.5
[INFO] extracting crate groupby 0.1.5 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/groupby/0.1.5
[INFO] validating manifest of groupby-0.1.5 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 groupby-0.1.5 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 groupby-0.1.5
[INFO] finished frobbing groupby-0.1.5
[INFO] frobbed toml for groupby-0.1.5 written to work/ex/beta-1.38-1/sources/1.37.0/reg/groupby/0.1.5/Cargo.toml
[INFO] started frobbing groupby-0.1.5
[INFO] finished frobbing groupby-0.1.5
[INFO] frobbed toml for groupby-0.1.5 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/groupby/0.1.5/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 groupby-0.1.5 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/groupby/0.1.5:/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] 18b5b6a1050e5b6b1bfedc72a3bc02a82a0c84bd8170eb3e70e58d422265c282
[INFO] running `"docker" "start" "-a" "18b5b6a1050e5b6b1bfedc72a3bc02a82a0c84bd8170eb3e70e58d422265c282"`
[INFO] [stderr]    Compiling groupby v0.1.5 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.81s
[INFO] running `"docker" "inspect" "18b5b6a1050e5b6b1bfedc72a3bc02a82a0c84bd8170eb3e70e58d422265c282"`
[INFO] running `"docker" "rm" "-f" "18b5b6a1050e5b6b1bfedc72a3bc02a82a0c84bd8170eb3e70e58d422265c282"`
[INFO] [stdout] 18b5b6a1050e5b6b1bfedc72a3bc02a82a0c84bd8170eb3e70e58d422265c282
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/groupby/0.1.5:/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] 1ed63ad36108b35b867dbdc6dde226c57b6fc06948b0030b94b6353a28ccb0c4
[INFO] running `"docker" "start" "-a" "1ed63ad36108b35b867dbdc6dde226c57b6fc06948b0030b94b6353a28ccb0c4"`
[INFO] [stderr]    Compiling groupby v0.1.5 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "1ed63ad36108b35b867dbdc6dde226c57b6fc06948b0030b94b6353a28ccb0c4"`
[INFO] running `"docker" "rm" "-f" "1ed63ad36108b35b867dbdc6dde226c57b6fc06948b0030b94b6353a28ccb0c4"`
[INFO] [stdout] 1ed63ad36108b35b867dbdc6dde226c57b6fc06948b0030b94b6353a28ccb0c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/groupby/0.1.5:/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] 15346e5a8108b2dedff52ddf6132a24e3c18fdfdd51b919485568f4a13ea569e
[INFO] running `"docker" "start" "-a" "15346e5a8108b2dedff52ddf6132a24e3c18fdfdd51b919485568f4a13ea569e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/groupby-d6e1aabfd95be686
[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" "15346e5a8108b2dedff52ddf6132a24e3c18fdfdd51b919485568f4a13ea569e"`
[INFO] running `"docker" "rm" "-f" "15346e5a8108b2dedff52ddf6132a24e3c18fdfdd51b919485568f4a13ea569e"`
[INFO] [stdout] 15346e5a8108b2dedff52ddf6132a24e3c18fdfdd51b919485568f4a13ea569e