[INFO] fetching crate typescript-definitions 0.1.10...
[INFO] documenting typescript-definitions-0.1.10 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate typescript-definitions 0.1.10 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate typescript-definitions 0.1.10 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate typescript-definitions 0.1.10
[INFO] finished tweaking crates.io crate typescript-definitions 0.1.10
[INFO] tweaked toml for crates.io crate typescript-definitions 0.1.10 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typescript-definitions-derive v0.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 300353d017863bdc3cb406ac3ec4b9b46d3f646302eb56da0dc9b16d4414979c
[INFO] running `Command { std: "docker" "start" "-a" "300353d017863bdc3cb406ac3ec4b9b46d3f646302eb56da0dc9b16d4414979c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "300353d017863bdc3cb406ac3ec4b9b46d3f646302eb56da0dc9b16d4414979c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300353d017863bdc3cb406ac3ec4b9b46d3f646302eb56da0dc9b16d4414979c", kill_on_drop: false }`
[INFO] [stdout] 300353d017863bdc3cb406ac3ec4b9b46d3f646302eb56da0dc9b16d4414979c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0ceae08b970b69fc851eaf689c40d42d94aca632c4d2909c0e3a7f51baf93f4
[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" "c0ceae08b970b69fc851eaf689c40d42d94aca632c4d2909c0e3a7f51baf93f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive_internals v0.24.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling typescript-definitions-derive v0.1.10
[INFO] [stdout] error[E0277]: `syn::Type` doesn't implement `std::fmt::Debug`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/typescript-definitions-derive-0.1.10/src/attrs.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub ts_as: Option<syn::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `syn::Type` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Debug` is not implemented for `syn::Type`
[INFO] [stdout]    = note: required because of the requirements on the impl of `std::fmt::Debug` for `std::option::Option<syn::Type>`
[INFO] [stdout]    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&std::option::Option<syn::Type>`
[INFO] [stdout]    = note: required for the cast to the object type `dyn std::fmt::Debug`
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `typescript-definitions-derive`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c0ceae08b970b69fc851eaf689c40d42d94aca632c4d2909c0e3a7f51baf93f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ceae08b970b69fc851eaf689c40d42d94aca632c4d2909c0e3a7f51baf93f4", kill_on_drop: false }`
[INFO] [stdout] c0ceae08b970b69fc851eaf689c40d42d94aca632c4d2909c0e3a7f51baf93f4