[INFO] crate futures-poll-log 1.0.1 is already in cache
[INFO] testing futures-poll-log-1.0.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate futures-poll-log 1.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate futures-poll-log 1.0.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-poll-log 1.0.1
[INFO] finished tweaking crates.io crate futures-poll-log 1.0.1
[INFO] tweaked toml for crates.io crate futures-poll-log 1.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 660d6a807145f77adc064572171976ca99939c602541e42b03ebca7e9c07c5f5
[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" "660d6a807145f77adc064572171976ca99939c602541e42b03ebca7e9c07c5f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "660d6a807145f77adc064572171976ca99939c602541e42b03ebca7e9c07c5f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "660d6a807145f77adc064572171976ca99939c602541e42b03ebca7e9c07c5f5", kill_on_drop: false }`
[INFO] [stdout] 660d6a807145f77adc064572171976ca99939c602541e42b03ebca7e9c07c5f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a02b48cc76f9753f117512de656eb055fc0c6c03970c3700fbceb6f62467a309
[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" "a02b48cc76f9753f117512de656eb055fc0c6c03970c3700fbceb6f62467a309", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-poll-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "a02b48cc76f9753f117512de656eb055fc0c6c03970c3700fbceb6f62467a309", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a02b48cc76f9753f117512de656eb055fc0c6c03970c3700fbceb6f62467a309", kill_on_drop: false }`
[INFO] [stdout] a02b48cc76f9753f117512de656eb055fc0c6c03970c3700fbceb6f62467a309
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 8fc971daba1422f1abaa42a53550e21e560f07ab9ce11b3738f2aec46c056294
[INFO] running `Command { std: "docker" "start" "-a" "8fc971daba1422f1abaa42a53550e21e560f07ab9ce11b3738f2aec46c056294", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-poll-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> examples/simple_future.rs:18:10
[INFO] [stdout]      |
[INFO] [stdout] 18   |         .inspect("immeditate future")
[INFO] [stdout]      |          ^^^^^^^ multiple `inspect` found
[INFO] [stdout]      |
[INFO] [stdout]      = note: candidate #1 is defined in an impl of the trait `futures::Future` for the type `futures::Done<T, E>`
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `futures_poll_log::LoggingExt` for the type `F`
[INFO] [stdout] note: candidate #3 is defined in the trait `std::iter::Iterator`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 17   |     let _: Result<i32, _> = futures::Future::inspect(futures::future::ok(3), "immeditate future")
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 17   |     let _: Result<i32, _> = futures_poll_log::LoggingExt::inspect(futures::future::ok(3), "immeditate future")
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #3
[INFO] [stdout]      |
[INFO] [stdout] 17   |     let _: Result<i32, _> = std::iter::Iterator::inspect(futures::future::ok(3), "immeditate future")
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-poll-log`.
[INFO] [stdout] warning: unused import: `futures_poll_log::LoggingExt`
[INFO] [stdout]  --> examples/simple_future.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_poll_log::LoggingExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: unused import: `futures::Future`
[INFO] [stdout]  --> examples/simple_future.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8fc971daba1422f1abaa42a53550e21e560f07ab9ce11b3738f2aec46c056294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc971daba1422f1abaa42a53550e21e560f07ab9ce11b3738f2aec46c056294", kill_on_drop: false }`
[INFO] [stdout] 8fc971daba1422f1abaa42a53550e21e560f07ab9ce11b3738f2aec46c056294