[INFO] fetching crate futures-zipkin 0.4.0...
[INFO] testing futures-zipkin-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate futures-zipkin 0.4.0 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate futures-zipkin 0.4.0 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 futures-zipkin 0.4.0
[INFO] finished tweaking crates.io crate futures-zipkin 0.4.0
[INFO] tweaked toml for crates.io crate futures-zipkin 0.4.0 written to /workspace/builds/worker-43/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zipkin-types v0.1.0
[INFO] [stderr]   Downloaded data-encoding v2.3.2
[INFO] [stderr]   Downloaded thread-local-object v0.1.0
[INFO] [stderr]   Downloaded zipkin v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 1c378d86ee94d14dc20d7eaea2d201363aa69808280628c80fd7b331247e505b
[INFO] running `Command { std: "docker" "start" "-a" "1c378d86ee94d14dc20d7eaea2d201363aa69808280628c80fd7b331247e505b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c378d86ee94d14dc20d7eaea2d201363aa69808280628c80fd7b331247e505b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c378d86ee94d14dc20d7eaea2d201363aa69808280628c80fd7b331247e505b", kill_on_drop: false }`
[INFO] [stdout] 1c378d86ee94d14dc20d7eaea2d201363aa69808280628c80fd7b331247e505b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 7ffd6f074fb35425b704dd5a23a0feb40d1bebbc74cad1f9f9459bbfdd1e176e
[INFO] running `Command { std: "docker" "start" "-a" "7ffd6f074fb35425b704dd5a23a0feb40d1bebbc74cad1f9f9459bbfdd1e176e", kill_on_drop: false }`
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling thread-local-object v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling zipkin-types v0.1.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling zipkin v0.3.5
[INFO] [stderr]    Compiling futures-zipkin v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "7ffd6f074fb35425b704dd5a23a0feb40d1bebbc74cad1f9f9459bbfdd1e176e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ffd6f074fb35425b704dd5a23a0feb40d1bebbc74cad1f9f9459bbfdd1e176e", kill_on_drop: false }`
[INFO] [stdout] 7ffd6f074fb35425b704dd5a23a0feb40d1bebbc74cad1f9f9459bbfdd1e176e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 35f3be8dcc44caba027cf31477b34a1b3f65519212b94b93305ef144d95d820a
[INFO] running `Command { std: "docker" "start" "-a" "35f3be8dcc44caba027cf31477b34a1b3f65519212b94b93305ef144d95d820a", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-zipkin v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "35f3be8dcc44caba027cf31477b34a1b3f65519212b94b93305ef144d95d820a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35f3be8dcc44caba027cf31477b34a1b3f65519212b94b93305ef144d95d820a", kill_on_drop: false }`
[INFO] [stdout] 35f3be8dcc44caba027cf31477b34a1b3f65519212b94b93305ef144d95d820a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 2c49be7a7a89a5caf487575863caaed29134d927a5b97ac9b208cb4e9c0c8836
[INFO] running `Command { std: "docker" "start" "-a" "2c49be7a7a89a5caf487575863caaed29134d927a5b97ac9b208cb4e9c0c8836", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/futures_zipkin-1ef8aceb5b959ab0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests futures-zipkin
[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] [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" "2c49be7a7a89a5caf487575863caaed29134d927a5b97ac9b208cb4e9c0c8836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c49be7a7a89a5caf487575863caaed29134d927a5b97ac9b208cb4e9c0c8836", kill_on_drop: false }`
[INFO] [stdout] 2c49be7a7a89a5caf487575863caaed29134d927a5b97ac9b208cb4e9c0c8836