[INFO] fetching crate rcstruct 0.2.0...
[INFO] testing rcstruct-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rcstruct 0.2.0 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate rcstruct 0.2.0 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 rcstruct 0.2.0
[INFO] finished tweaking crates.io crate rcstruct 0.2.0
[INFO] tweaked toml for crates.io crate rcstruct 0.2.0 written to /workspace/builds/worker-90/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] [stderr]     Blocking waiting for file lock on package cache
[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-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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] fae4494fc461b498613d838f7bba4ef7a80a5566b7a37cb36c3c231b25eec3db
[INFO] running `Command { std: "docker" "start" "-a" "fae4494fc461b498613d838f7bba4ef7a80a5566b7a37cb36c3c231b25eec3db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fae4494fc461b498613d838f7bba4ef7a80a5566b7a37cb36c3c231b25eec3db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae4494fc461b498613d838f7bba4ef7a80a5566b7a37cb36c3c231b25eec3db", kill_on_drop: false }`
[INFO] [stdout] fae4494fc461b498613d838f7bba4ef7a80a5566b7a37cb36c3c231b25eec3db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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] ba329c450a1fba4524d5f50168e4ddce577bbaa0e1eee5de1679a656dc09f91a
[INFO] running `Command { std: "docker" "start" "-a" "ba329c450a1fba4524d5f50168e4ddce577bbaa0e1eee5de1679a656dc09f91a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rcstruct v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.75s
[INFO] running `Command { std: "docker" "inspect" "ba329c450a1fba4524d5f50168e4ddce577bbaa0e1eee5de1679a656dc09f91a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba329c450a1fba4524d5f50168e4ddce577bbaa0e1eee5de1679a656dc09f91a", kill_on_drop: false }`
[INFO] [stdout] ba329c450a1fba4524d5f50168e4ddce577bbaa0e1eee5de1679a656dc09f91a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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] b5869f22ac575d5cb567f759a4a940f4f4d9093538befae678fbb6ee59be1353
[INFO] running `Command { std: "docker" "start" "-a" "b5869f22ac575d5cb567f759a4a940f4f4d9093538befae678fbb6ee59be1353", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcstruct v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "b5869f22ac575d5cb567f759a4a940f4f4d9093538befae678fbb6ee59be1353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5869f22ac575d5cb567f759a4a940f4f4d9093538befae678fbb6ee59be1353", kill_on_drop: false }`
[INFO] [stdout] b5869f22ac575d5cb567f759a4a940f4f4d9093538befae678fbb6ee59be1353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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] 8e6b3f345b69d60a08a26434fd52e3b341c3cabd904efba89ab6cf184b505cc7
[INFO] running `Command { std: "docker" "start" "-a" "8e6b3f345b69d60a08a26434fd52e3b341c3cabd904efba89ab6cf184b505cc7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rcstruct-a9a82baae86d31b3)
[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 rcstruct
[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" "8e6b3f345b69d60a08a26434fd52e3b341c3cabd904efba89ab6cf184b505cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e6b3f345b69d60a08a26434fd52e3b341c3cabd904efba89ab6cf184b505cc7", kill_on_drop: false }`
[INFO] [stdout] 8e6b3f345b69d60a08a26434fd52e3b341c3cabd904efba89ab6cf184b505cc7