[INFO] cloning repository https://github.com/AreebSiddiqui/rust-futures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AreebSiddiqui/rust-futures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAreebSiddiqui%2Frust-futures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAreebSiddiqui%2Frust-futures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89598644e39526c039498aabdeb69eac64ef527b
[INFO] testing AreebSiddiqui/rust-futures against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAreebSiddiqui%2Frust-futures" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/AreebSiddiqui/rust-futures on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AreebSiddiqui/rust-futures
[INFO] finished tweaking git repo https://github.com/AreebSiddiqui/rust-futures
[INFO] tweaked toml for git repo https://github.com/AreebSiddiqui/rust-futures written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/AreebSiddiqui/rust-futures already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb3afe549c4caae6663aa730fcf9d1412818b0698aef719f55602f225fbf8dc8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bb3afe549c4caae6663aa730fcf9d1412818b0698aef719f55602f225fbf8dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb3afe549c4caae6663aa730fcf9d1412818b0698aef719f55602f225fbf8dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb3afe549c4caae6663aa730fcf9d1412818b0698aef719f55602f225fbf8dc8", kill_on_drop: false }`
[INFO] [stdout] bb3afe549c4caae6663aa730fcf9d1412818b0698aef719f55602f225fbf8dc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 880aae03eaf8bb32044ed85a7aed82e4305950039059a843c2abb35d2bd2b839
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "880aae03eaf8bb32044ed85a7aed82e4305950039059a843c2abb35d2bd2b839", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 |             3 =>  Ok(Async::Ready((self.count))),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "880aae03eaf8bb32044ed85a7aed82e4305950039059a843c2abb35d2bd2b839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "880aae03eaf8bb32044ed85a7aed82e4305950039059a843c2abb35d2bd2b839", kill_on_drop: false }`
[INFO] [stdout] 880aae03eaf8bb32044ed85a7aed82e4305950039059a843c2abb35d2bd2b839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e83613d3796c35e18a2f3a5accaf6e45c22d5a3bb93abc85f303db0ac2d89cbe
[INFO] running `Command { std: "docker" "start" "-a" "e83613d3796c35e18a2f3a5accaf6e45c22d5a3bb93abc85f303db0ac2d89cbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 |             3 =>  Ok(Async::Ready((self.count))),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "e83613d3796c35e18a2f3a5accaf6e45c22d5a3bb93abc85f303db0ac2d89cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e83613d3796c35e18a2f3a5accaf6e45c22d5a3bb93abc85f303db0ac2d89cbe", kill_on_drop: false }`
[INFO] [stdout] e83613d3796c35e18a2f3a5accaf6e45c22d5a3bb93abc85f303db0ac2d89cbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0a38dd14a84897b89209cd021008907e68fa57112d6ac38a970eb7bd9b80f859
[INFO] running `Command { std: "docker" "start" "-a" "0a38dd14a84897b89209cd021008907e68fa57112d6ac38a970eb7bd9b80f859", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:79:35
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 79 |             3 =>  Ok(Async::Ready((self.count))),
[INFO] [stdout] 
[INFO] [stderr]    |                                   ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/futures-aa834e7bdca9f889)
[INFO] running `Command { std: "docker" "inspect" "0a38dd14a84897b89209cd021008907e68fa57112d6ac38a970eb7bd9b80f859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a38dd14a84897b89209cd021008907e68fa57112d6ac38a970eb7bd9b80f859", kill_on_drop: false }`
[INFO] [stdout] 0a38dd14a84897b89209cd021008907e68fa57112d6ac38a970eb7bd9b80f859