[INFO] fetching crate serde_unit_struct 0.1.1...
[INFO] documenting serde_unit_struct-0.1.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate serde_unit_struct 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate serde_unit_struct 0.1.1 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_unit_struct 0.1.1
[INFO] finished tweaking crates.io crate serde_unit_struct 0.1.1
[INFO] tweaked toml for crates.io crate serde_unit_struct 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4dead398768d83c5ef692f44df7c7aac59ad11d86dc08f4df7f18f7772c01eec
[INFO] running `Command { std: "docker" "start" "-a" "4dead398768d83c5ef692f44df7c7aac59ad11d86dc08f4df7f18f7772c01eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dead398768d83c5ef692f44df7c7aac59ad11d86dc08f4df7f18f7772c01eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dead398768d83c5ef692f44df7c7aac59ad11d86dc08f4df7f18f7772c01eec", kill_on_drop: false }`
[INFO] [stdout] 4dead398768d83c5ef692f44df7c7aac59ad11d86dc08f4df7f18f7772c01eec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d07a1ee97c0635adeaec56623b247d3bda88464e2cb962bdf0ebcb0ab2bf90a7
[INFO] running `Command { std: "docker" "start" "-a" "d07a1ee97c0635adeaec56623b247d3bda88464e2cb962bdf0ebcb0ab2bf90a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling serde_unit_struct_derive v0.1.1
[INFO] [stderr]  Documenting serde_unit_struct v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.26s
[INFO] running `Command { std: "docker" "inspect" "d07a1ee97c0635adeaec56623b247d3bda88464e2cb962bdf0ebcb0ab2bf90a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d07a1ee97c0635adeaec56623b247d3bda88464e2cb962bdf0ebcb0ab2bf90a7", kill_on_drop: false }`
[INFO] [stdout] d07a1ee97c0635adeaec56623b247d3bda88464e2cb962bdf0ebcb0ab2bf90a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] e58e95053d316884529dfa183ab3e62c5ab64977b41e72c34c9f830902672e24
[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" "e58e95053d316884529dfa183ab3e62c5ab64977b41e72c34c9f830902672e24", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling serde_unit_struct_derive v0.1.1
[INFO] [stdout] error[E0277]: the trait bound `quote::__private::Span: From<proc_macro::Span>` is not satisfied
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_unit_struct_derive-0.1.1/src/lib.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Span::call_site().into(),
[INFO] [stdout]    |                           ^^^^ the trait `From<proc_macro::Span>` is not implemented for `quote::__private::Span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required because of the requirements on the impl of `Into<quote::__private::Span>` for `proc_macro::Span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_unit_struct_derive` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e58e95053d316884529dfa183ab3e62c5ab64977b41e72c34c9f830902672e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e58e95053d316884529dfa183ab3e62c5ab64977b41e72c34c9f830902672e24", kill_on_drop: false }`
[INFO] [stdout] e58e95053d316884529dfa183ab3e62c5ab64977b41e72c34c9f830902672e24