[INFO] fetching crate structconf_derive 0.4.0...
[INFO] testing structconf_derive-0.4.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate structconf_derive 0.4.0 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate structconf_derive 0.4.0 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 structconf_derive 0.4.0
[INFO] finished tweaking crates.io crate structconf_derive 0.4.0
[INFO] tweaked toml for crates.io crate structconf_derive 0.4.0 written to /workspace/builds/worker-42/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] d8387fcf9df71c33f174bd5665625afe9250ad6c77dfdc81e34b7df39a90e39e
[INFO] running `Command { std: "docker" "start" "-a" "d8387fcf9df71c33f174bd5665625afe9250ad6c77dfdc81e34b7df39a90e39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8387fcf9df71c33f174bd5665625afe9250ad6c77dfdc81e34b7df39a90e39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8387fcf9df71c33f174bd5665625afe9250ad6c77dfdc81e34b7df39a90e39e", kill_on_drop: false }`
[INFO] [stdout] d8387fcf9df71c33f174bd5665625afe9250ad6c77dfdc81e34b7df39a90e39e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 249912954f490ce9a53ebd8e0cabf4dec4eaf5506e39d34ea4552ee1d3e78667
[INFO] running `Command { std: "docker" "start" "-a" "249912954f490ce9a53ebd8e0cabf4dec4eaf5506e39d34ea4552ee1d3e78667", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling structconf_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.58s
[INFO] running `Command { std: "docker" "inspect" "249912954f490ce9a53ebd8e0cabf4dec4eaf5506e39d34ea4552ee1d3e78667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "249912954f490ce9a53ebd8e0cabf4dec4eaf5506e39d34ea4552ee1d3e78667", kill_on_drop: false }`
[INFO] [stdout] 249912954f490ce9a53ebd8e0cabf4dec4eaf5506e39d34ea4552ee1d3e78667
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] e1c3da1db9e33f74ef7142df05fed7af99ce59061a08f8e4bd284cbde1e74633
[INFO] running `Command { std: "docker" "start" "-a" "e1c3da1db9e33f74ef7142df05fed7af99ce59061a08f8e4bd284cbde1e74633", kill_on_drop: false }`
[INFO] [stderr]    Compiling structconf_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "e1c3da1db9e33f74ef7142df05fed7af99ce59061a08f8e4bd284cbde1e74633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c3da1db9e33f74ef7142df05fed7af99ce59061a08f8e4bd284cbde1e74633", kill_on_drop: false }`
[INFO] [stdout] e1c3da1db9e33f74ef7142df05fed7af99ce59061a08f8e4bd284cbde1e74633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 96125ed8d6d88ec4e23c4ccf6cadae3f1eeb096746f2920761ea6d99dbed6c4c
[INFO] running `Command { std: "docker" "start" "-a" "96125ed8d6d88ec4e23c4ccf6cadae3f1eeb096746f2920761ea6d99dbed6c4c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/structconf_derive-67e6014b12a963de)
[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 structconf_derive
[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" "96125ed8d6d88ec4e23c4ccf6cadae3f1eeb096746f2920761ea6d99dbed6c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96125ed8d6d88ec4e23c4ccf6cadae3f1eeb096746f2920761ea6d99dbed6c4c", kill_on_drop: false }`
[INFO] [stdout] 96125ed8d6d88ec4e23c4ccf6cadae3f1eeb096746f2920761ea6d99dbed6c4c