[INFO] fetching crate silkworm 0.1.0-dev.0...
[INFO] testing silkworm-0.1.0-dev.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate silkworm 0.1.0-dev.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate silkworm 0.1.0-dev.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 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-6/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 31c18733023ab0b865e8468bb06f90e8ce0325bf8295e5992275cb9a268552c8
[INFO] running `Command { std: "docker" "start" "-a" "31c18733023ab0b865e8468bb06f90e8ce0325bf8295e5992275cb9a268552c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31c18733023ab0b865e8468bb06f90e8ce0325bf8295e5992275cb9a268552c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c18733023ab0b865e8468bb06f90e8ce0325bf8295e5992275cb9a268552c8", kill_on_drop: false }`
[INFO] [stdout] 31c18733023ab0b865e8468bb06f90e8ce0325bf8295e5992275cb9a268552c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8820f8731c96c3ea6a614e0113bb9bd9f66a14b031f1a6def1eae0380f5f2334
[INFO] running `Command { std: "docker" "start" "-a" "8820f8731c96c3ea6a614e0113bb9bd9f66a14b031f1a6def1eae0380f5f2334", kill_on_drop: false }`
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]    Compiling silkworm_sourcemap v0.1.0-dev.1
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling silkworm_err v0.1.0-dev.1
[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 3.83s
[INFO] running `Command { std: "docker" "inspect" "8820f8731c96c3ea6a614e0113bb9bd9f66a14b031f1a6def1eae0380f5f2334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8820f8731c96c3ea6a614e0113bb9bd9f66a14b031f1a6def1eae0380f5f2334", kill_on_drop: false }`
[INFO] [stdout] 8820f8731c96c3ea6a614e0113bb9bd9f66a14b031f1a6def1eae0380f5f2334
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] dacc55c495a514d84e7c4a01e326a68be5a92554d6cd62fa03b07415c69f9931
[INFO] running `Command { std: "docker" "start" "-a" "dacc55c495a514d84e7c4a01e326a68be5a92554d6cd62fa03b07415c69f9931", 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 0.72s
[INFO] running `Command { std: "docker" "inspect" "dacc55c495a514d84e7c4a01e326a68be5a92554d6cd62fa03b07415c69f9931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dacc55c495a514d84e7c4a01e326a68be5a92554d6cd62fa03b07415c69f9931", kill_on_drop: false }`
[INFO] [stdout] dacc55c495a514d84e7c4a01e326a68be5a92554d6cd62fa03b07415c69f9931
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 066a3b25abb97962da3c7bc81dbfc1ba402117dcf3903f5000e71e37543dba51
[INFO] running `Command { std: "docker" "start" "-a" "066a3b25abb97962da3c7bc81dbfc1ba402117dcf3903f5000e71e37543dba51", 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-a2738f1453d7a97c)
[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" "066a3b25abb97962da3c7bc81dbfc1ba402117dcf3903f5000e71e37543dba51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "066a3b25abb97962da3c7bc81dbfc1ba402117dcf3903f5000e71e37543dba51", kill_on_drop: false }`
[INFO] [stdout] 066a3b25abb97962da3c7bc81dbfc1ba402117dcf3903f5000e71e37543dba51