[INFO] fetching crate introspection 0.1.0...
[INFO] testing introspection-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate introspection 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate introspection 0.1.0 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 introspection 0.1.0
[INFO] finished tweaking crates.io crate introspection 0.1.0
[INFO] tweaked toml for crates.io crate introspection 0.1.0 written to /workspace/builds/worker-0/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] a4e33cee4489e959d93962e8cd47dcf55cc0d00c27fee0cee3e1a708288e76cc
[INFO] running `Command { std: "docker" "start" "-a" "a4e33cee4489e959d93962e8cd47dcf55cc0d00c27fee0cee3e1a708288e76cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4e33cee4489e959d93962e8cd47dcf55cc0d00c27fee0cee3e1a708288e76cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4e33cee4489e959d93962e8cd47dcf55cc0d00c27fee0cee3e1a708288e76cc", kill_on_drop: false }`
[INFO] [stdout] a4e33cee4489e959d93962e8cd47dcf55cc0d00c27fee0cee3e1a708288e76cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] dfb34b3a79a530e4f85abdd502e4fd0fa6ce891c7ed9f2a961fab6db1c4ac153
[INFO] running `Command { std: "docker" "start" "-a" "dfb34b3a79a530e4f85abdd502e4fd0fa6ce891c7ed9f2a961fab6db1c4ac153", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling introspection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "dfb34b3a79a530e4f85abdd502e4fd0fa6ce891c7ed9f2a961fab6db1c4ac153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfb34b3a79a530e4f85abdd502e4fd0fa6ce891c7ed9f2a961fab6db1c4ac153", kill_on_drop: false }`
[INFO] [stdout] dfb34b3a79a530e4f85abdd502e4fd0fa6ce891c7ed9f2a961fab6db1c4ac153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] f75c9470136994105266d823c6c67236562819ad2efe31a262ea54f3c54ab66d
[INFO] running `Command { std: "docker" "start" "-a" "f75c9470136994105266d823c6c67236562819ad2efe31a262ea54f3c54ab66d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling introspection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "f75c9470136994105266d823c6c67236562819ad2efe31a262ea54f3c54ab66d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f75c9470136994105266d823c6c67236562819ad2efe31a262ea54f3c54ab66d", kill_on_drop: false }`
[INFO] [stdout] f75c9470136994105266d823c6c67236562819ad2efe31a262ea54f3c54ab66d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 2776c21bed172c068ae12cbf7ba1c29e0ac8adf0ca9d0d8af5424ba8f8d56c0e
[INFO] running `Command { std: "docker" "start" "-a" "2776c21bed172c068ae12cbf7ba1c29e0ac8adf0ca9d0d8af5424ba8f8d56c0e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/introspection-c40fbeec3fc8bab0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests introspection
[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" "2776c21bed172c068ae12cbf7ba1c29e0ac8adf0ca9d0d8af5424ba8f8d56c0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2776c21bed172c068ae12cbf7ba1c29e0ac8adf0ca9d0d8af5424ba8f8d56c0e", kill_on_drop: false }`
[INFO] [stdout] 2776c21bed172c068ae12cbf7ba1c29e0ac8adf0ca9d0d8af5424ba8f8d56c0e