[INFO] fetching crate winrt-notification 0.3.1...
[INFO] testing winrt-notification-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate winrt-notification 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate winrt-notification 0.3.1 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 winrt-notification 0.3.1
[INFO] finished tweaking crates.io crate winrt-notification 0.3.1
[INFO] tweaked toml for crates.io crate winrt-notification 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate winrt-notification 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows_winmd_macros v0.3.1
[INFO] [stderr]   Downloaded windows_macros v0.3.1
[INFO] [stderr]   Downloaded windows_gen_macros v0.3.1
[INFO] [stderr]   Downloaded squote v0.1.2
[INFO] [stderr]   Downloaded windows_gen v0.3.1
[INFO] [stderr]   Downloaded windows_winmd v0.3.1
[INFO] [stderr]   Downloaded windows v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 7c9ce52809595f3031b6e51e6ab36487ef39125dce6a9c874db9cf7c0e569ad4
[INFO] running `Command { std: "docker" "start" "-a" "7c9ce52809595f3031b6e51e6ab36487ef39125dce6a9c874db9cf7c0e569ad4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c9ce52809595f3031b6e51e6ab36487ef39125dce6a9c874db9cf7c0e569ad4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c9ce52809595f3031b6e51e6ab36487ef39125dce6a9c874db9cf7c0e569ad4", kill_on_drop: false }`
[INFO] [stdout] 7c9ce52809595f3031b6e51e6ab36487ef39125dce6a9c874db9cf7c0e569ad4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a2f8f6f79ed76a5f9ec21bee38422356741abdecbc0229a06526b9cfd488e249
[INFO] running `Command { std: "docker" "start" "-a" "a2f8f6f79ed76a5f9ec21bee38422356741abdecbc0229a06526b9cfd488e249", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling squote v0.1.2
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling windows_winmd_macros v0.3.1
[INFO] [stderr]    Compiling windows_gen_macros v0.3.1
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling windows_winmd v0.3.1
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling windows_gen v0.3.1
[INFO] [stderr]    Compiling windows_macros v0.3.1
[INFO] [stderr]    Compiling windows v0.3.1
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/windows-0.3.1/build.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     windows_macros::build!();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: Cargo metadata did not contain `workspace_root` key.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `windows` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a2f8f6f79ed76a5f9ec21bee38422356741abdecbc0229a06526b9cfd488e249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f8f6f79ed76a5f9ec21bee38422356741abdecbc0229a06526b9cfd488e249", kill_on_drop: false }`
[INFO] [stdout] a2f8f6f79ed76a5f9ec21bee38422356741abdecbc0229a06526b9cfd488e249