[INFO] crate futures-stable-preview 0.2.3 is already in cache
[INFO] extracting crate futures-stable-preview 0.2.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/futures-stable-preview/0.2.3
[INFO] extracting crate futures-stable-preview 0.2.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/futures-stable-preview/0.2.3
[INFO] validating manifest of futures-stable-preview-0.2.3 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-stable-preview-0.2.3 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-stable-preview-0.2.3
[INFO] finished frobbing futures-stable-preview-0.2.3
[INFO] frobbed toml for futures-stable-preview-0.2.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/futures-stable-preview/0.2.3/Cargo.toml
[INFO] started frobbing futures-stable-preview-0.2.3
[INFO] finished frobbing futures-stable-preview-0.2.3
[INFO] frobbed toml for futures-stable-preview-0.2.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/futures-stable-preview/0.2.3/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-stable-preview-0.2.3 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/futures-stable-preview/0.2.3:/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] 57ac1ee1c4b87fccd8f2f6825f4006937f7d5645b45c14f2302a2877a45fe809
[INFO] running `"docker" "start" "-a" "57ac1ee1c4b87fccd8f2f6825f4006937f7d5645b45c14f2302a2877a45fe809"`
[INFO] [stderr]    Compiling futures-core-preview v0.2.3
[INFO] [stderr]    Compiling futures-channel-preview v0.2.2
[INFO] [stderr]    Compiling futures-io-preview v0.2.2
[INFO] [stderr]    Compiling futures-sink-preview v0.2.2
[INFO] [stderr]    Compiling futures-util-preview v0.2.2
[INFO] [stderr]    Compiling futures-executor-preview v0.2.2
[INFO] [stderr]    Compiling futures-stable-preview v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `"docker" "inspect" "57ac1ee1c4b87fccd8f2f6825f4006937f7d5645b45c14f2302a2877a45fe809"`
[INFO] running `"docker" "rm" "-f" "57ac1ee1c4b87fccd8f2f6825f4006937f7d5645b45c14f2302a2877a45fe809"`
[INFO] [stdout] 57ac1ee1c4b87fccd8f2f6825f4006937f7d5645b45c14f2302a2877a45fe809
[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/futures-stable-preview/0.2.3:/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] 85663f29257f28789e91b8c534a3c077e2d0677591a6fc5b1ba8b5c1f1ee08e0
[INFO] running `"docker" "start" "-a" "85663f29257f28789e91b8c534a3c077e2d0677591a6fc5b1ba8b5c1f1ee08e0"`
[INFO] [stderr]    Compiling futures-stable-preview v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "85663f29257f28789e91b8c534a3c077e2d0677591a6fc5b1ba8b5c1f1ee08e0"`
[INFO] running `"docker" "rm" "-f" "85663f29257f28789e91b8c534a3c077e2d0677591a6fc5b1ba8b5c1f1ee08e0"`
[INFO] [stdout] 85663f29257f28789e91b8c534a3c077e2d0677591a6fc5b1ba8b5c1f1ee08e0
[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/futures-stable-preview/0.2.3:/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] 464e565e7345125b3a489096c57a537fe4202a775b21b32a1c71735dcd7b7dd1
[INFO] running `"docker" "start" "-a" "464e565e7345125b3a489096c57a537fe4202a775b21b32a1c71735dcd7b7dd1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/futures_stable-9475d42acbdbf888
[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_stable
[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" "464e565e7345125b3a489096c57a537fe4202a775b21b32a1c71735dcd7b7dd1"`
[INFO] running `"docker" "rm" "-f" "464e565e7345125b3a489096c57a537fe4202a775b21b32a1c71735dcd7b7dd1"`
[INFO] [stdout] 464e565e7345125b3a489096c57a537fe4202a775b21b32a1c71735dcd7b7dd1