[INFO] updating cached repository AreebSiddiqui/rust-futures
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AreebSiddiqui/rust-futures
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AreebSiddiqui/rust-futures" "work/ex/beta-1.38-1/sources/1.37.0/gh/AreebSiddiqui/rust-futures"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/AreebSiddiqui/rust-futures'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AreebSiddiqui/rust-futures" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AreebSiddiqui/rust-futures"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AreebSiddiqui/rust-futures'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 89598644e39526c039498aabdeb69eac64ef527b
[INFO] sha for GitHub repo AreebSiddiqui/rust-futures: 89598644e39526c039498aabdeb69eac64ef527b
[INFO] validating manifest of AreebSiddiqui/rust-futures 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 AreebSiddiqui/rust-futures 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 AreebSiddiqui/rust-futures
[INFO] finished frobbing AreebSiddiqui/rust-futures
[INFO] frobbed toml for AreebSiddiqui/rust-futures written to work/ex/beta-1.38-1/sources/1.37.0/gh/AreebSiddiqui/rust-futures/Cargo.toml
[INFO] started frobbing AreebSiddiqui/rust-futures
[INFO] finished frobbing AreebSiddiqui/rust-futures
[INFO] frobbed toml for AreebSiddiqui/rust-futures written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AreebSiddiqui/rust-futures/Cargo.toml
[INFO] crate AreebSiddiqui/rust-futures already has a lockfile, it will not be regenerated
[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 AreebSiddiqui/rust-futures 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/gh/AreebSiddiqui/rust-futures:/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] 4b0b4ac2fd38eddaab236eb7a05716d7065fc354d977b503145a655b61c25a02
[INFO] running `"docker" "start" "-a" "4b0b4ac2fd38eddaab236eb7a05716d7065fc354d977b503145a655b61c25a02"`
[INFO] [stderr]    Compiling futures v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:79:35
[INFO] [stderr]    |
[INFO] [stderr] 79 |             3 =>  Ok(Async::Ready((self.count))),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "4b0b4ac2fd38eddaab236eb7a05716d7065fc354d977b503145a655b61c25a02"`
[INFO] running `"docker" "rm" "-f" "4b0b4ac2fd38eddaab236eb7a05716d7065fc354d977b503145a655b61c25a02"`
[INFO] [stdout] 4b0b4ac2fd38eddaab236eb7a05716d7065fc354d977b503145a655b61c25a02
[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/gh/AreebSiddiqui/rust-futures:/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] ef10690c841d2bf2963d64174227081e2353a9b8cd996a010d58e2b0328d755e
[INFO] running `"docker" "start" "-a" "ef10690c841d2bf2963d64174227081e2353a9b8cd996a010d58e2b0328d755e"`
[INFO] [stderr]    Compiling futures v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:79:35
[INFO] [stderr]    |
[INFO] [stderr] 79 |             3 =>  Ok(Async::Ready((self.count))),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "ef10690c841d2bf2963d64174227081e2353a9b8cd996a010d58e2b0328d755e"`
[INFO] running `"docker" "rm" "-f" "ef10690c841d2bf2963d64174227081e2353a9b8cd996a010d58e2b0328d755e"`
[INFO] [stdout] ef10690c841d2bf2963d64174227081e2353a9b8cd996a010d58e2b0328d755e
[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/gh/AreebSiddiqui/rust-futures:/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] 4725ab513808f24f160532a8264751586e2147e230ce861a979f49851db68610
[INFO] running `"docker" "start" "-a" "4725ab513808f24f160532a8264751586e2147e230ce861a979f49851db68610"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/futures-cc686c2126cd4e8c
[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" "4725ab513808f24f160532a8264751586e2147e230ce861a979f49851db68610"`
[INFO] running `"docker" "rm" "-f" "4725ab513808f24f160532a8264751586e2147e230ce861a979f49851db68610"`
[INFO] [stdout] 4725ab513808f24f160532a8264751586e2147e230ce861a979f49851db68610