[INFO] fetching crate structmeta-derive 0.1.0...
[INFO] checking structmeta-derive-0.1.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate structmeta-derive 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate structmeta-derive 0.1.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate structmeta-derive 0.1.0
[INFO] finished tweaking crates.io crate structmeta-derive 0.1.0
[INFO] tweaked toml for crates.io crate structmeta-derive 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7acf9cece74c119470cf7b425135e7ac8060ac2eecd108679ce62314ab1548dd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7acf9cece74c119470cf7b425135e7ac8060ac2eecd108679ce62314ab1548dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7acf9cece74c119470cf7b425135e7ac8060ac2eecd108679ce62314ab1548dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7acf9cece74c119470cf7b425135e7ac8060ac2eecd108679ce62314ab1548dd", kill_on_drop: false }`
[INFO] [stdout] 7acf9cece74c119470cf7b425135e7ac8060ac2eecd108679ce62314ab1548dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8b863ca4c0861ba06ed497c591cfd940f34c399d39ef683c0a71d1d99d9ced7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e8b863ca4c0861ba06ed497c591cfd940f34c399d39ef683c0a71d1d99d9ced7", kill_on_drop: false }`
[INFO] [stderr]     Checking structmeta-derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Option<&syn::Type>`
[INFO] [stdout]    --> src/struct_meta.rs:813:9
[INFO] [stdout]     |
[INFO] [stdout] 813 | /         assert_eq!(
[INFO] [stdout] 814 | |             get_option_element(&parse_quote!(Option<u8>)),
[INFO] [stdout] 815 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 816 | |         );
[INFO] [stdout]     | |          ^
[INFO] [stdout]     | |          |
[INFO] [stdout]     | |__________Option<&syn::Type>
[INFO] [stdout]     |            Option<&_>
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `syn::Type` doesn't implement `Debug`
[INFO] [stdout]    --> src/struct_meta.rs:813:9
[INFO] [stdout]     |
[INFO] [stdout] 813 | /         assert_eq!(
[INFO] [stdout] 814 | |             get_option_element(&parse_quote!(Option<u8>)),
[INFO] [stdout] 815 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 816 | |         );
[INFO] [stdout]     | |__________^ `syn::Type` cannot be formatted using `{:?}` because it doesn't implement `Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Debug` is not implemented for `syn::Type`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `&syn::Type`
[INFO] [stdout]     = note: 1 redundant requirements hidden
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `Option<&syn::Type>`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Option<&syn::Type>`
[INFO] [stdout]    --> src/struct_meta.rs:820:9
[INFO] [stdout]     |
[INFO] [stdout] 820 | /         assert_eq!(
[INFO] [stdout] 821 | |             get_option_element(&parse_quote!(option::Option<u8>)),
[INFO] [stdout] 822 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 823 | |         );
[INFO] [stdout]     | |          ^
[INFO] [stdout]     | |          |
[INFO] [stdout]     | |__________Option<&syn::Type>
[INFO] [stdout]     |            Option<&_>
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `syn::Type` doesn't implement `Debug`
[INFO] [stdout]    --> src/struct_meta.rs:820:9
[INFO] [stdout]     |
[INFO] [stdout] 820 | /         assert_eq!(
[INFO] [stdout] 821 | |             get_option_element(&parse_quote!(option::Option<u8>)),
[INFO] [stdout] 822 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 823 | |         );
[INFO] [stdout]     | |__________^ `syn::Type` cannot be formatted using `{:?}` because it doesn't implement `Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Debug` is not implemented for `syn::Type`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `&syn::Type`
[INFO] [stdout]     = note: 1 redundant requirements hidden
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `Option<&syn::Type>`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Option<&syn::Type>`
[INFO] [stdout]    --> src/struct_meta.rs:827:9
[INFO] [stdout]     |
[INFO] [stdout] 827 | /         assert_eq!(
[INFO] [stdout] 828 | |             get_option_element(&parse_quote!(core::option::Option<u8>)),
[INFO] [stdout] 829 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 830 | |         );
[INFO] [stdout]     | |          ^
[INFO] [stdout]     | |          |
[INFO] [stdout]     | |__________Option<&syn::Type>
[INFO] [stdout]     |            Option<&_>
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `syn::Type` doesn't implement `Debug`
[INFO] [stdout]    --> src/struct_meta.rs:827:9
[INFO] [stdout]     |
[INFO] [stdout] 827 | /         assert_eq!(
[INFO] [stdout] 828 | |             get_option_element(&parse_quote!(core::option::Option<u8>)),
[INFO] [stdout] 829 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 830 | |         );
[INFO] [stdout]     | |__________^ `syn::Type` cannot be formatted using `{:?}` because it doesn't implement `Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Debug` is not implemented for `syn::Type`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `&syn::Type`
[INFO] [stdout]     = note: 1 redundant requirements hidden
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `Option<&syn::Type>`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Option<&syn::Type>`
[INFO] [stdout]    --> src/struct_meta.rs:834:9
[INFO] [stdout]     |
[INFO] [stdout] 834 | /         assert_eq!(
[INFO] [stdout] 835 | |             get_option_element(&parse_quote!(std::option::Option<u8>)),
[INFO] [stdout] 836 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 837 | |         );
[INFO] [stdout]     | |          ^
[INFO] [stdout]     | |          |
[INFO] [stdout]     | |__________Option<&syn::Type>
[INFO] [stdout]     |            Option<&_>
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `syn::Type` doesn't implement `Debug`
[INFO] [stdout]    --> src/struct_meta.rs:834:9
[INFO] [stdout]     |
[INFO] [stdout] 834 | /         assert_eq!(
[INFO] [stdout] 835 | |             get_option_element(&parse_quote!(std::option::Option<u8>)),
[INFO] [stdout] 836 | |             Some(&parse_quote!(u8))
[INFO] [stdout] 837 | |         );
[INFO] [stdout]     | |__________^ `syn::Type` cannot be formatted using `{:?}` because it doesn't implement `Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Debug` is not implemented for `syn::Type`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `&syn::Type`
[INFO] [stdout]     = note: 1 redundant requirements hidden
[INFO] [stdout]     = note: required because of the requirements on the impl of `Debug` for `Option<&syn::Type>`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0369.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `structmeta-derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e8b863ca4c0861ba06ed497c591cfd940f34c399d39ef683c0a71d1d99d9ced7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b863ca4c0861ba06ed497c591cfd940f34c399d39ef683c0a71d1d99d9ced7", kill_on_drop: false }`
[INFO] [stdout] e8b863ca4c0861ba06ed497c591cfd940f34c399d39ef683c0a71d1d99d9ced7