[INFO] fetching crate futures-io-preview 0.3.0-alpha.19...
[INFO] testing futures-io-preview-0.3.0-alpha.19 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate futures-io-preview 0.3.0-alpha.19 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate futures-io-preview 0.3.0-alpha.19 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-io-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-io-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-io-preview 0.3.0-alpha.19 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c2268a502b68f1f8228eebbbc57a18240d2e4b4db4cc1d71f521456ea83bc11
[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" "9c2268a502b68f1f8228eebbbc57a18240d2e4b4db4cc1d71f521456ea83bc11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c2268a502b68f1f8228eebbbc57a18240d2e4b4db4cc1d71f521456ea83bc11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2268a502b68f1f8228eebbbc57a18240d2e4b4db4cc1d71f521456ea83bc11", kill_on_drop: false }`
[INFO] [stdout] 9c2268a502b68f1f8228eebbbc57a18240d2e4b4db4cc1d71f521456ea83bc11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86666542894c314160bae188952ccfffc2d4fd7c2970f3d6b1ae05fe20746146
[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" "86666542894c314160bae188952ccfffc2d4fd7c2970f3d6b1ae05fe20746146", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "86666542894c314160bae188952ccfffc2d4fd7c2970f3d6b1ae05fe20746146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86666542894c314160bae188952ccfffc2d4fd7c2970f3d6b1ae05fe20746146", kill_on_drop: false }`
[INFO] [stdout] 86666542894c314160bae188952ccfffc2d4fd7c2970f3d6b1ae05fe20746146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a20d744e6a0f3fcf44379aba978d797e8ff5b79be1c8014f30702381506b3ba2
[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" "a20d744e6a0f3fcf44379aba978d797e8ff5b79be1c8014f30702381506b3ba2", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "a20d744e6a0f3fcf44379aba978d797e8ff5b79be1c8014f30702381506b3ba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20d744e6a0f3fcf44379aba978d797e8ff5b79be1c8014f30702381506b3ba2", kill_on_drop: false }`
[INFO] [stdout] a20d744e6a0f3fcf44379aba978d797e8ff5b79be1c8014f30702381506b3ba2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] c6968baec14bcbe2e3348ef7bdb5577567db13765faa0c7e0cda1d453a771863
[INFO] running `Command { std: "docker" "start" "-a" "c6968baec14bcbe2e3348ef7bdb5577567db13765faa0c7e0cda1d453a771863", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/futures_io-06724b8884e1c270)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests futures_io
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c6968baec14bcbe2e3348ef7bdb5577567db13765faa0c7e0cda1d453a771863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6968baec14bcbe2e3348ef7bdb5577567db13765faa0c7e0cda1d453a771863", kill_on_drop: false }`
[INFO] [stdout] c6968baec14bcbe2e3348ef7bdb5577567db13765faa0c7e0cda1d453a771863