[INFO] fetching crate woodpecker 0.4.0...
[INFO] documenting woodpecker-0.4.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate woodpecker 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate woodpecker 0.4.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate woodpecker 0.4.0
[INFO] finished tweaking crates.io crate woodpecker 0.4.0
[INFO] tweaked toml for crates.io crate woodpecker 0.4.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c473dfe4c037d2cba81b30a3bc1593fe44598ccf94ac07fafc4ffebaf9997d6
[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" "4c473dfe4c037d2cba81b30a3bc1593fe44598ccf94ac07fafc4ffebaf9997d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c473dfe4c037d2cba81b30a3bc1593fe44598ccf94ac07fafc4ffebaf9997d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c473dfe4c037d2cba81b30a3bc1593fe44598ccf94ac07fafc4ffebaf9997d6", kill_on_drop: false }`
[INFO] [stdout] 4c473dfe4c037d2cba81b30a3bc1593fe44598ccf94ac07fafc4ffebaf9997d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a1ee65ed87456b9aaea8be534d63f41def3906d2115fb8d8d8c321f36c129b8
[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" "8a1ee65ed87456b9aaea8be534d63f41def3906d2115fb8d8d8c321f36c129b8", kill_on_drop: false }`
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]  Documenting woodpecker v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `core::fmt::Opaque` cannot be shared between threads safely
[INFO] [stdout]    --> src/record/imp.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 166 | impl<'a> Record for SyncRecord<'a> {
[INFO] [stdout]     |          ^^^^^^ `core::fmt::Opaque` cannot be shared between threads safely
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/record/mod.rs:26:26
[INFO] [stdout]     |
[INFO] [stdout] 26  | pub trait Record: Send + Sync {
[INFO] [stdout]     |                          ---- required by this bound in `record::Record`
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `record::imp::SyncRecord<'a>`, the trait `std::marker::Sync` is not implemented for `core::fmt::Opaque`
[INFO] [stdout]     = note: required because it appears within the type `&'a core::fmt::Opaque`
[INFO] [stdout]     = note: required because it appears within the type `std::fmt::ArgumentV1<'a>`
[INFO] [stdout]     = note: required because it appears within the type `[std::fmt::ArgumentV1<'a>]`
[INFO] [stdout]     = note: required because it appears within the type `&'a [std::fmt::ArgumentV1<'a>]`
[INFO] [stdout]     = note: required because it appears within the type `std::fmt::Arguments<'a>`
[INFO] [stdout]     = note: required because it appears within the type `record::imp::SyncRecord<'a>`
[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 document `woodpecker`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name woodpecker src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-a58fecdeab7eed2f.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-61dda7c3c2116ade.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-33051cf5e9044f58.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-4ff6ab272aca5dce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-cf76cfac759569a5.rmeta --extern thread_id=/opt/rustwide/target/debug/deps/libthread_id-b022a70f21672731.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-06a439cbf99d31a6.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "8a1ee65ed87456b9aaea8be534d63f41def3906d2115fb8d8d8c321f36c129b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a1ee65ed87456b9aaea8be534d63f41def3906d2115fb8d8d8c321f36c129b8", kill_on_drop: false }`
[INFO] [stdout] 8a1ee65ed87456b9aaea8be534d63f41def3906d2115fb8d8d8c321f36c129b8