[INFO] fetching crate structscan 0.1.0...
[INFO] testing structscan-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate structscan 0.1.0 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate structscan 0.1.0 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 structscan 0.1.0
[INFO] finished tweaking crates.io crate structscan 0.1.0
[INFO] tweaked toml for crates.io crate structscan 0.1.0 written to /workspace/builds/worker-80/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structscan_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 12b28b033c02beafc02d84f480a10308077b0cf1b788531a1375df150e818836
[INFO] running `Command { std: "docker" "start" "-a" "12b28b033c02beafc02d84f480a10308077b0cf1b788531a1375df150e818836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12b28b033c02beafc02d84f480a10308077b0cf1b788531a1375df150e818836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12b28b033c02beafc02d84f480a10308077b0cf1b788531a1375df150e818836", kill_on_drop: false }`
[INFO] [stdout] 12b28b033c02beafc02d84f480a10308077b0cf1b788531a1375df150e818836
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] d179513717a7ba0202e33baf82abcd269e3d4c0d8b61a64b1e1d7c64e6624327
[INFO] running `Command { std: "docker" "start" "-a" "d179513717a7ba0202e33baf82abcd269e3d4c0d8b61a64b1e1d7c64e6624327", kill_on_drop: false }`
[INFO] [stderr]    Compiling structscan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "d179513717a7ba0202e33baf82abcd269e3d4c0d8b61a64b1e1d7c64e6624327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d179513717a7ba0202e33baf82abcd269e3d4c0d8b61a64b1e1d7c64e6624327", kill_on_drop: false }`
[INFO] [stdout] d179513717a7ba0202e33baf82abcd269e3d4c0d8b61a64b1e1d7c64e6624327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 582f86a9cd1811add84118b1c523aeaf0f0e593ae9b1f8dc91c637b68453f461
[INFO] running `Command { std: "docker" "start" "-a" "582f86a9cd1811add84118b1c523aeaf0f0e593ae9b1f8dc91c637b68453f461", kill_on_drop: false }`
[INFO] [stderr]    Compiling structscan_derive v0.1.0
[INFO] [stderr]    Compiling structscan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "582f86a9cd1811add84118b1c523aeaf0f0e593ae9b1f8dc91c637b68453f461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "582f86a9cd1811add84118b1c523aeaf0f0e593ae9b1f8dc91c637b68453f461", kill_on_drop: false }`
[INFO] [stdout] 582f86a9cd1811add84118b1c523aeaf0f0e593ae9b1f8dc91c637b68453f461
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 7389a0b6d8646c0115d8dfd5f33761d60129e46d80209aaa9b735da1c7d7086a
[INFO] running `Command { std: "docker" "start" "-a" "7389a0b6d8646c0115d8dfd5f33761d60129e46d80209aaa9b735da1c7d7086a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/structscan-9d0a72afef24d8bc)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests structscan
[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" "7389a0b6d8646c0115d8dfd5f33761d60129e46d80209aaa9b735da1c7d7086a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7389a0b6d8646c0115d8dfd5f33761d60129e46d80209aaa9b735da1c7d7086a", kill_on_drop: false }`
[INFO] [stdout] 7389a0b6d8646c0115d8dfd5f33761d60129e46d80209aaa9b735da1c7d7086a