[INFO] fetching crate silkworm 0.1.0-dev.0...
[INFO] testing silkworm-0.1.0-dev.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate silkworm 0.1.0-dev.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate silkworm 0.1.0-dev.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 silkworm 0.1.0-dev.0
[INFO] finished tweaking crates.io crate silkworm 0.1.0-dev.0
[INFO] tweaked toml for crates.io crate silkworm 0.1.0-dev.0 written to /workspace/builds/worker-7/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]  Downloading crates ...
[INFO] [stderr]   Downloaded silkworm_syn v0.1.0-dev.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 26e86a96b081cd1289ec0ffba2129be6d0d4784aea212eea4ef88957b371c2a5
[INFO] running `Command { std: "docker" "start" "-a" "26e86a96b081cd1289ec0ffba2129be6d0d4784aea212eea4ef88957b371c2a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26e86a96b081cd1289ec0ffba2129be6d0d4784aea212eea4ef88957b371c2a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e86a96b081cd1289ec0ffba2129be6d0d4784aea212eea4ef88957b371c2a5", kill_on_drop: false }`
[INFO] [stdout] 26e86a96b081cd1289ec0ffba2129be6d0d4784aea212eea4ef88957b371c2a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] dfc97a2e74bb8bc178b7056639404cd8f6d2c9dc0a09fb3199064c0f1d9e3db7
[INFO] running `Command { std: "docker" "start" "-a" "dfc97a2e74bb8bc178b7056639404cd8f6d2c9dc0a09fb3199064c0f1d9e3db7", kill_on_drop: false }`
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling silkworm_sourcemap v0.1.0-dev.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling silkworm_err v0.1.0-dev.1
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling silkworm_syn v0.1.0-dev.1
[INFO] [stderr]    Compiling silkworm v0.1.0-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.49s
[INFO] running `Command { std: "docker" "inspect" "dfc97a2e74bb8bc178b7056639404cd8f6d2c9dc0a09fb3199064c0f1d9e3db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfc97a2e74bb8bc178b7056639404cd8f6d2c9dc0a09fb3199064c0f1d9e3db7", kill_on_drop: false }`
[INFO] [stdout] dfc97a2e74bb8bc178b7056639404cd8f6d2c9dc0a09fb3199064c0f1d9e3db7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] e0e96bb5b588e954b159cbb304585f8846c04f165d34cf6a9644fb68ed47c705
[INFO] running `Command { std: "docker" "start" "-a" "e0e96bb5b588e954b159cbb304585f8846c04f165d34cf6a9644fb68ed47c705", kill_on_drop: false }`
[INFO] [stderr]    Compiling silkworm v0.1.0-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "e0e96bb5b588e954b159cbb304585f8846c04f165d34cf6a9644fb68ed47c705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e96bb5b588e954b159cbb304585f8846c04f165d34cf6a9644fb68ed47c705", kill_on_drop: false }`
[INFO] [stdout] e0e96bb5b588e954b159cbb304585f8846c04f165d34cf6a9644fb68ed47c705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 36c2dae68e567e405eb7c1e25fb424906dd718ddf2ba6426838f850c301a419e
[INFO] running `Command { std: "docker" "start" "-a" "36c2dae68e567e405eb7c1e25fb424906dd718ddf2ba6426838f850c301a419e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/silkworm-ced6a9c901be1606)
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests silkworm
[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" "36c2dae68e567e405eb7c1e25fb424906dd718ddf2ba6426838f850c301a419e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36c2dae68e567e405eb7c1e25fb424906dd718ddf2ba6426838f850c301a419e", kill_on_drop: false }`
[INFO] [stdout] 36c2dae68e567e405eb7c1e25fb424906dd718ddf2ba6426838f850c301a419e