[INFO] crate futures-util-preview 0.3.0-alpha.10 is already in cache
[INFO] extracting crate futures-util-preview 0.3.0-alpha.10 into work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/futures-util-preview/0.3.0-alpha.10
[INFO] extracting crate futures-util-preview 0.3.0-alpha.10 into work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/futures-util-preview/0.3.0-alpha.10
[INFO] validating manifest of futures-util-preview-0.3.0-alpha.10 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of futures-util-preview-0.3.0-alpha.10 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing futures-util-preview-0.3.0-alpha.10
[INFO] finished frobbing futures-util-preview-0.3.0-alpha.10
[INFO] frobbed toml for futures-util-preview-0.3.0-alpha.10 written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/futures-util-preview/0.3.0-alpha.10/Cargo.toml
[INFO] started frobbing futures-util-preview-0.3.0-alpha.10
[INFO] finished frobbing futures-util-preview-0.3.0-alpha.10
[INFO] frobbed toml for futures-util-preview-0.3.0-alpha.10 written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/futures-util-preview/0.3.0-alpha.10/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking futures-util-preview-0.3.0-alpha.10 against master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-5/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/futures-util-preview/0.3.0-alpha.10:/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=forbid" "-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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0e2b9b00e572ef63f8a053e61311740a6c625d20f61d7f8d7c4ab4dee8338628
[INFO] running `"docker" "start" "-a" "0e2b9b00e572ef63f8a053e61311740a6c625d20f61d7f8d7c4ab4dee8338628"`
[INFO] [stderr] warning: the cargo feature `rename-dependency` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.3
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.10
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.10
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.10
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.10
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.10 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `futures_executor`
[INFO] [stderr]   --> src/sink/fanout.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     use futures_executor::block_on;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ use of undeclared type or module `futures_executor`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `futures-util-preview`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0e2b9b00e572ef63f8a053e61311740a6c625d20f61d7f8d7c4ab4dee8338628"`
[INFO] running `"docker" "rm" "-f" "0e2b9b00e572ef63f8a053e61311740a6c625d20f61d7f8d7c4ab4dee8338628"`
[INFO] [stdout] 0e2b9b00e572ef63f8a053e61311740a6c625d20f61d7f8d7c4ab4dee8338628