[INFO] fetching crate lambda_runtime_errors_derive 0.1.1...
[INFO] documenting lambda_runtime_errors_derive-0.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate lambda_runtime_errors_derive 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lambda_runtime_errors_derive 0.1.1 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 lambda_runtime_errors_derive 0.1.1
[INFO] finished tweaking crates.io crate lambda_runtime_errors_derive 0.1.1
[INFO] tweaked toml for crates.io crate lambda_runtime_errors_derive 0.1.1 written to /workspace/builds/worker-6/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] 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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a02e6192c6f0272f4a5567066793c0deb99944a7e5322ba771c4c721571d42a0
[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" "a02e6192c6f0272f4a5567066793c0deb99944a7e5322ba771c4c721571d42a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a02e6192c6f0272f4a5567066793c0deb99944a7e5322ba771c4c721571d42a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a02e6192c6f0272f4a5567066793c0deb99944a7e5322ba771c4c721571d42a0", kill_on_drop: false }`
[INFO] [stdout] a02e6192c6f0272f4a5567066793c0deb99944a7e5322ba771c4c721571d42a0
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e787cf350af74e9ff4450f2d4194015b8445e3885a75579ef96eee75213a59d
[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" "3e787cf350af74e9ff4450f2d4194015b8445e3885a75579ef96eee75213a59d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking synstructure v0.10.2
[INFO] [stderr]  Documenting lambda_runtime_errors_derive v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     (quote! {
[INFO] [stdout] 21 | |         #err_impl
[INFO] [stdout] 22 | |     })
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 20 |     quote! {
[INFO] [stdout] 21 |         #err_impl
[INFO] [stdout] 22 |     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `Command { std: "docker" "inspect" "3e787cf350af74e9ff4450f2d4194015b8445e3885a75579ef96eee75213a59d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e787cf350af74e9ff4450f2d4194015b8445e3885a75579ef96eee75213a59d", kill_on_drop: false }`
[INFO] [stdout] 3e787cf350af74e9ff4450f2d4194015b8445e3885a75579ef96eee75213a59d