[INFO] fetching crate flow_impl 0.21.0...
[INFO] testing flow_impl-0.21.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate flow_impl 0.21.0 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate flow_impl 0.21.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flow_impl 0.21.0
[INFO] finished tweaking crates.io crate flow_impl 0.21.0
[INFO] tweaked toml for crates.io crate flow_impl 0.21.0 written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96d0ef0eb33eac7f2e55cb8962a4ec7616f7bd76d097c637c093a84e8a488b87
[INFO] running `Command { std: "docker" "start" "-a" "96d0ef0eb33eac7f2e55cb8962a4ec7616f7bd76d097c637c093a84e8a488b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96d0ef0eb33eac7f2e55cb8962a4ec7616f7bd76d097c637c093a84e8a488b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96d0ef0eb33eac7f2e55cb8962a4ec7616f7bd76d097c637c093a84e8a488b87", kill_on_drop: false }`
[INFO] [stdout] 96d0ef0eb33eac7f2e55cb8962a4ec7616f7bd76d097c637c093a84e8a488b87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d29ea1374305ad72305007ed727d487a80638fdf66f7d991bc7aaefdf146cc8
[INFO] running `Command { std: "docker" "start" "-a" "5d29ea1374305ad72305007ed727d487a80638fdf66f7d991bc7aaefdf146cc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling flow_impl v0.21.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.55s
[INFO] running `Command { std: "docker" "inspect" "5d29ea1374305ad72305007ed727d487a80638fdf66f7d991bc7aaefdf146cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d29ea1374305ad72305007ed727d487a80638fdf66f7d991bc7aaefdf146cc8", kill_on_drop: false }`
[INFO] [stdout] 5d29ea1374305ad72305007ed727d487a80638fdf66f7d991bc7aaefdf146cc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10c72eb07a279ee7bce13a4cb2add9cfee8a4b09bad1a9fd1053dd9a477c94c5
[INFO] running `Command { std: "docker" "start" "-a" "10c72eb07a279ee7bce13a4cb2add9cfee8a4b09bad1a9fd1053dd9a477c94c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling flow_impl v0.21.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "10c72eb07a279ee7bce13a4cb2add9cfee8a4b09bad1a9fd1053dd9a477c94c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c72eb07a279ee7bce13a4cb2add9cfee8a4b09bad1a9fd1053dd9a477c94c5", kill_on_drop: false }`
[INFO] [stdout] 10c72eb07a279ee7bce13a4cb2add9cfee8a4b09bad1a9fd1053dd9a477c94c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4025f34839877833eb9aa388165be3277071c1fd2e5819c17d55c754ce286771
[INFO] running `Command { std: "docker" "start" "-a" "4025f34839877833eb9aa388165be3277071c1fd2e5819c17d55c754ce286771", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flow_impl-a893a7d211f00c2b)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flow_impl
[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 1 test
[INFO] [stdout] test src/lib.rs - Implementation (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4025f34839877833eb9aa388165be3277071c1fd2e5819c17d55c754ce286771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4025f34839877833eb9aa388165be3277071c1fd2e5819c17d55c754ce286771", kill_on_drop: false }`
[INFO] [stdout] 4025f34839877833eb9aa388165be3277071c1fd2e5819c17d55c754ce286771