[INFO] fetching crate esp_idf_dev_sys 0.1.3...
[INFO] documenting esp_idf_dev_sys-0.1.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate esp_idf_dev_sys 0.1.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate esp_idf_dev_sys 0.1.3 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 esp_idf_dev_sys 0.1.3
[INFO] finished tweaking crates.io crate esp_idf_dev_sys 0.1.3
[INFO] tweaked toml for crates.io crate esp_idf_dev_sys 0.1.3 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 4b0c15b400c2ca3313854f3547946a1fe81ef67ba9684af9b59a9c50fb9c6c0a
[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" "4b0c15b400c2ca3313854f3547946a1fe81ef67ba9684af9b59a9c50fb9c6c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b0c15b400c2ca3313854f3547946a1fe81ef67ba9684af9b59a9c50fb9c6c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b0c15b400c2ca3313854f3547946a1fe81ef67ba9684af9b59a9c50fb9c6c0a", kill_on_drop: false }`
[INFO] [stdout] 4b0c15b400c2ca3313854f3547946a1fe81ef67ba9684af9b59a9c50fb9c6c0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 684173028fc4a79e683f0a9b4ae8c5feaf41dc47949cb7368e21ac3796e937de
[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" "684173028fc4a79e683f0a9b4ae8c5feaf41dc47949cb7368e21ac3796e937de", kill_on_drop: false }`
[INFO] [stderr]  Documenting esp_idf_dev_sys v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: doc comment contains an invalid Rust code block
[INFO] [stdout]      --> src/bindings.rs:40784:1
[INFO] [stdout]       |
[INFO] [stdout] 40784 | / #[doc = " @brief User callback function to convert uint8_t type data to rmt format(rmt_item32_t)."]
[INFO] [stdout] 40785 | | #[doc = ""]
[INFO] [stdout] 40786 | | #[doc = "        This function may be called from an ISR, so, the code should be short and efficient."]
[INFO] [stdout] 40787 | | #[doc = ""]
[INFO] [stdout] ...     |
[INFO] [stdout] 40799 | | #[doc = "       When we convert each byte of uint8_t type data to rmt format data,"]
[INFO] [stdout] 40800 | | #[doc = "       the relation between item_num and translated_size should be `item_num = translated_size*8`."]
[INFO] [stdout]       | |_____________________________________________________________________________________________________________^
[INFO] [stdout]       |
[INFO] [stdout]       = note: error from rustc: unknown start of token: `
[INFO] [stdout]       = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.35s
[INFO] running `Command { std: "docker" "inspect" "684173028fc4a79e683f0a9b4ae8c5feaf41dc47949cb7368e21ac3796e937de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684173028fc4a79e683f0a9b4ae8c5feaf41dc47949cb7368e21ac3796e937de", kill_on_drop: false }`
[INFO] [stdout] 684173028fc4a79e683f0a9b4ae8c5feaf41dc47949cb7368e21ac3796e937de