[INFO] crate futures-io-preview 0.3.0-alpha.17 is already in cache
[INFO] extracting crate futures-io-preview 0.3.0-alpha.17 into work/ex/beta-1.38-1/sources/1.37.0/reg/futures-io-preview/0.3.0-alpha.17
[INFO] extracting crate futures-io-preview 0.3.0-alpha.17 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/futures-io-preview/0.3.0-alpha.17
[INFO] validating manifest of futures-io-preview-0.3.0-alpha.17 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 futures-io-preview-0.3.0-alpha.17 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 futures-io-preview-0.3.0-alpha.17
[INFO] finished frobbing futures-io-preview-0.3.0-alpha.17
[INFO] frobbed toml for futures-io-preview-0.3.0-alpha.17 written to work/ex/beta-1.38-1/sources/1.37.0/reg/futures-io-preview/0.3.0-alpha.17/Cargo.toml
[INFO] started frobbing futures-io-preview-0.3.0-alpha.17
[INFO] finished frobbing futures-io-preview-0.3.0-alpha.17
[INFO] frobbed toml for futures-io-preview-0.3.0-alpha.17 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/futures-io-preview/0.3.0-alpha.17/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 futures-io-preview-0.3.0-alpha.17 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/futures-io-preview/0.3.0-alpha.17:/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] f1d9a03c97d94c3fac37c0a8bf7b1aaac22e8cbb94f086b4532165aa71d19bfd
[INFO] running `"docker" "start" "-a" "f1d9a03c97d94c3fac37c0a8bf7b1aaac22e8cbb94f086b4532165aa71d19bfd"`
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.17 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "f1d9a03c97d94c3fac37c0a8bf7b1aaac22e8cbb94f086b4532165aa71d19bfd"`
[INFO] running `"docker" "rm" "-f" "f1d9a03c97d94c3fac37c0a8bf7b1aaac22e8cbb94f086b4532165aa71d19bfd"`
[INFO] [stdout] f1d9a03c97d94c3fac37c0a8bf7b1aaac22e8cbb94f086b4532165aa71d19bfd
[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/futures-io-preview/0.3.0-alpha.17:/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] e9279873febb978bd19f5a2755b9013e2372c08e6b08f4f3eba655834fbcfc0f
[INFO] running `"docker" "start" "-a" "e9279873febb978bd19f5a2755b9013e2372c08e6b08f4f3eba655834fbcfc0f"`
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.17 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "e9279873febb978bd19f5a2755b9013e2372c08e6b08f4f3eba655834fbcfc0f"`
[INFO] running `"docker" "rm" "-f" "e9279873febb978bd19f5a2755b9013e2372c08e6b08f4f3eba655834fbcfc0f"`
[INFO] [stdout] e9279873febb978bd19f5a2755b9013e2372c08e6b08f4f3eba655834fbcfc0f
[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/futures-io-preview/0.3.0-alpha.17:/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] 23cd04dd43667201771b20a940caacb51bcc6fafb776c4e2f59e7600c9225732
[INFO] running `"docker" "start" "-a" "23cd04dd43667201771b20a940caacb51bcc6fafb776c4e2f59e7600c9225732"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/futures_io-cac3348e39d1cf6a
[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 futures_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" "23cd04dd43667201771b20a940caacb51bcc6fafb776c4e2f59e7600c9225732"`
[INFO] running `"docker" "rm" "-f" "23cd04dd43667201771b20a940caacb51bcc6fafb776c4e2f59e7600c9225732"`
[INFO] [stdout] 23cd04dd43667201771b20a940caacb51bcc6fafb776c4e2f59e7600c9225732