[INFO] fetching crate flowruntime 0.8.8...
[INFO] testing flowruntime-0.8.8 against 1.55.0 for beta-1.56-1
[INFO] extracting crate flowruntime 0.8.8 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate flowruntime 0.8.8 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 flowruntime 0.8.8
[INFO] finished tweaking crates.io crate flowruntime 0.8.8
[INFO] tweaked toml for crates.io crate flowruntime 0.8.8 written to /workspace/builds/worker-57/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 parity-wasm v0.31.3
[INFO] [stderr]   Downloaded wasmi v0.4.5
[INFO] [stderr]   Downloaded flow_impl v0.8.5
[INFO] [stderr]   Downloaded flowrlib v0.8.8
[INFO] [stderr]   Downloaded wasmi-validation v0.1.0
[INFO] [stderr]   Downloaded multimap v0.5.0
[INFO] [stderr]   Downloaded simplog v1.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] ce02e7522f8645cacffb64321ef7cb8e64c10d766a9c7d2310b8b52729235e76
[INFO] running `Command { std: "docker" "start" "-a" "ce02e7522f8645cacffb64321ef7cb8e64c10d766a9c7d2310b8b52729235e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce02e7522f8645cacffb64321ef7cb8e64c10d766a9c7d2310b8b52729235e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce02e7522f8645cacffb64321ef7cb8e64c10d766a9c7d2310b8b52729235e76", kill_on_drop: false }`
[INFO] [stdout] ce02e7522f8645cacffb64321ef7cb8e64c10d766a9c7d2310b8b52729235e76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 6fab286307e707040d03f3694c8b2e05db29b5962406755c465933fe9907015a
[INFO] running `Command { std: "docker" "start" "-a" "6fab286307e707040d03f3694c8b2e05db29b5962406755c465933fe9907015a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling memory_units v0.3.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling simplog v1.2.2
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling parity-wasm v0.31.3
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling wasmi-validation v0.1.0
[INFO] [stderr]    Compiling wasmi v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling multimap v0.5.0
[INFO] [stderr]    Compiling flow_impl v0.8.5
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling flowrlib v0.8.8
[INFO] [stderr]    Compiling flowruntime v0.8.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.15s
[INFO] running `Command { std: "docker" "inspect" "6fab286307e707040d03f3694c8b2e05db29b5962406755c465933fe9907015a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fab286307e707040d03f3694c8b2e05db29b5962406755c465933fe9907015a", kill_on_drop: false }`
[INFO] [stdout] 6fab286307e707040d03f3694c8b2e05db29b5962406755c465933fe9907015a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 3960a2e557fbdd89ee268abbee28dd380f1c6cef7efb04fdcf9706f703e5acd6
[INFO] running `Command { std: "docker" "start" "-a" "3960a2e557fbdd89ee268abbee28dd380f1c6cef7efb04fdcf9706f703e5acd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling flowruntime v0.8.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "3960a2e557fbdd89ee268abbee28dd380f1c6cef7efb04fdcf9706f703e5acd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3960a2e557fbdd89ee268abbee28dd380f1c6cef7efb04fdcf9706f703e5acd6", kill_on_drop: false }`
[INFO] [stdout] 3960a2e557fbdd89ee268abbee28dd380f1c6cef7efb04fdcf9706f703e5acd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 674e63140cb7e369ce6e1a08457a31d8184e044cc656f21e65e64095078df697
[INFO] running `Command { std: "docker" "start" "-a" "674e63140cb7e369ce6e1a08457a31d8184e044cc656f21e65e64095078df697", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flowruntime-68870302be2d5340)
[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] [stderr]    Doc-tests flowruntime
[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" "674e63140cb7e369ce6e1a08457a31d8184e044cc656f21e65e64095078df697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "674e63140cb7e369ce6e1a08457a31d8184e044cc656f21e65e64095078df697", kill_on_drop: false }`
[INFO] [stdout] 674e63140cb7e369ce6e1a08457a31d8184e044cc656f21e65e64095078df697