[INFO] fetching crate futuristic 0.3.0...
[INFO] testing futuristic-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate futuristic 0.3.0 into /workspace/builds/worker-109/source
[INFO] validating manifest of crates.io crate futuristic 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futuristic 0.3.0
[INFO] finished tweaking crates.io crate futuristic 0.3.0
[INFO] tweaked toml for crates.io crate futuristic 0.3.0 written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f287c2729c0c855d39501ca86294d6c9e11ff7f716076a3e7d513dc71d12804
[INFO] running `Command { std: "docker" "start" "-a" "6f287c2729c0c855d39501ca86294d6c9e11ff7f716076a3e7d513dc71d12804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f287c2729c0c855d39501ca86294d6c9e11ff7f716076a3e7d513dc71d12804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f287c2729c0c855d39501ca86294d6c9e11ff7f716076a3e7d513dc71d12804", kill_on_drop: false }`
[INFO] [stdout] 6f287c2729c0c855d39501ca86294d6c9e11ff7f716076a3e7d513dc71d12804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2bd9c99f8657dd9b7703d4f20e19c14734f5624c8ca750c0130289fd974988f
[INFO] running `Command { std: "docker" "start" "-a" "a2bd9c99f8657dd9b7703d4f20e19c14734f5624c8ca750c0130289fd974988f", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling futuristic v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.86s
[INFO] running `Command { std: "docker" "inspect" "a2bd9c99f8657dd9b7703d4f20e19c14734f5624c8ca750c0130289fd974988f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2bd9c99f8657dd9b7703d4f20e19c14734f5624c8ca750c0130289fd974988f", kill_on_drop: false }`
[INFO] [stdout] a2bd9c99f8657dd9b7703d4f20e19c14734f5624c8ca750c0130289fd974988f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dca9073ea714d9067b9cc2b1534c473266046b1060321c4d0ddabd438cae719f
[INFO] running `Command { std: "docker" "start" "-a" "dca9073ea714d9067b9cc2b1534c473266046b1060321c4d0ddabd438cae719f", kill_on_drop: false }`
[INFO] [stderr]    Compiling futuristic v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "dca9073ea714d9067b9cc2b1534c473266046b1060321c4d0ddabd438cae719f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dca9073ea714d9067b9cc2b1534c473266046b1060321c4d0ddabd438cae719f", kill_on_drop: false }`
[INFO] [stdout] dca9073ea714d9067b9cc2b1534c473266046b1060321c4d0ddabd438cae719f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0bf54b5b9c068a4f3125ef0cc3ed98c4afb4c6dfd20657eef9ea692ad9b175d9
[INFO] running `Command { std: "docker" "start" "-a" "0bf54b5b9c068a4f3125ef0cc3ed98c4afb4c6dfd20657eef9ea692ad9b175d9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/futuristic-cd4d27ac65fc8e3d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests futuristic
[INFO] [stdout] test sink::fork::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "0bf54b5b9c068a4f3125ef0cc3ed98c4afb4c6dfd20657eef9ea692ad9b175d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf54b5b9c068a4f3125ef0cc3ed98c4afb4c6dfd20657eef9ea692ad9b175d9", kill_on_drop: false }`
[INFO] [stdout] 0bf54b5b9c068a4f3125ef0cc3ed98c4afb4c6dfd20657eef9ea692ad9b175d9