[INFO] fetching crate frame-system-rpc-runtime-api 2.0.0-rc6...
[INFO] documenting frame-system-rpc-runtime-api-2.0.0-rc6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate frame-system-rpc-runtime-api 2.0.0-rc6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate frame-system-rpc-runtime-api 2.0.0-rc6 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 frame-system-rpc-runtime-api 2.0.0-rc6
[INFO] finished tweaking crates.io crate frame-system-rpc-runtime-api 2.0.0-rc6
[INFO] tweaked toml for crates.io crate frame-system-rpc-runtime-api 2.0.0-rc6 written to /workspace/builds/worker-3/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 parity-scale-codec-derive v1.2.1
[INFO] [stderr]   Downloaded cpuid-bool v0.1.2
[INFO] [stderr]   Downloaded sp-io v2.0.0-rc6
[INFO] [stderr]   Downloaded sp-std v2.0.0-rc6
[INFO] [stderr]   Downloaded sp-version v2.0.0-rc6
[INFO] [stderr]   Downloaded sp-wasm-interface v2.0.0-rc6
[INFO] [stderr]   Downloaded sp-debug-derive v2.0.0-rc6
[INFO] [stderr]   Downloaded memory_units v0.3.0
[INFO] [stderr]   Downloaded sp-runtime v2.0.0-rc6
[INFO] [stderr]   Downloaded wasmi v0.6.2
[INFO] [stderr]   Downloaded sha2 v0.9.1
[INFO] [stderr]   Downloaded rental v0.5.5
[INFO] [stderr]   Downloaded sp-tracing v2.0.0-rc6
[INFO] [stderr]   Downloaded block-buffer v0.9.0
[INFO] [stderr]   Downloaded sp-inherents v2.0.0-rc6
[INFO] [stderr]   Downloaded memory-db v0.24.1
[INFO] [stderr]   Downloaded impl-serde v0.3.1
[INFO] [stderr]   Downloaded sp-core v2.0.0-rc6
[INFO] [stderr]   Downloaded tiny-bip39 v0.7.3
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.2
[INFO] [stderr]   Downloaded opaque-debug v0.3.0
[INFO] [stderr]   Downloaded sp-storage v2.0.0-rc6
[INFO] [stderr]   Downloaded sp-application-crypto v2.0.0-rc6
[INFO] [stderr]   Downloaded sp-arithmetic v2.0.0-rc6
[INFO] [stderr]   Downloaded substrate-bip39 v0.4.2
[INFO] [stderr]   Downloaded pbkdf2 v0.3.0
[INFO] [stderr]   Downloaded sp-state-machine v0.8.0-rc6
[INFO] [stderr]   Downloaded impl-trait-for-tuples v0.1.3
[INFO] [stderr]   Downloaded uint v0.8.5
[INFO] [stderr]   Downloaded dyn-clonable v0.9.0
[INFO] [stderr]   Downloaded sp-api-proc-macro v2.0.0-rc6
[INFO] [stderr]   Downloaded dyn-clone v1.0.2
[INFO] [stderr]   Downloaded signature v1.2.2
[INFO] [stderr]   Downloaded rental-impl v0.5.5
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.0
[INFO] [stderr]   Downloaded sp-externalities v0.8.0-rc6
[INFO] [stderr]   Downloaded Inflector v0.11.4
[INFO] [stderr]   Downloaded sp-trie v2.0.0-rc6
[INFO] [stderr]   Downloaded parity-scale-codec v1.3.4
[INFO] [stderr]   Downloaded tiny-keccak v2.0.2
[INFO] [stderr]   Downloaded impl-serde v0.2.3
[INFO] [stderr]   Downloaded integer-sqrt v0.1.3
[INFO] [stderr]   Downloaded secrecy v0.6.0
[INFO] [stderr]   Downloaded rustc-hex v2.1.0
[INFO] [stderr]   Downloaded radium v0.3.0
[INFO] [stderr]   Downloaded parity-util-mem-derive v0.1.0
[INFO] [stderr]   Downloaded trie-root v0.16.0
[INFO] [stderr]   Downloaded impl-codec v0.4.2
[INFO] [stderr]   Downloaded sp-runtime-interface v2.0.0-rc6
[INFO] [stderr]   Downloaded bitvec v0.17.4
[INFO] [stderr]   Downloaded libsecp256k1 v0.3.5
[INFO] [stderr]   Downloaded primitive-types v0.7.2
[INFO] [stderr]   Downloaded ed25519 v1.0.1
[INFO] [stderr]   Downloaded merlin v2.0.0
[INFO] [stderr]   Downloaded sp-api v2.0.0-rc6
[INFO] [stderr]   Downloaded trie-db v0.22.1
[INFO] [stderr]   Downloaded environmental v1.1.1
[INFO] [stderr]   Downloaded ref-cast v1.0.2
[INFO] [stderr]   Downloaded sp-runtime-interface-proc-macro v2.0.0-rc6
[INFO] [stderr]   Downloaded crunchy v0.2.2
[INFO] [stderr]   Downloaded wasmi-validation v0.3.0
[INFO] [stderr]   Downloaded parity-util-mem v0.7.0
[INFO] [stderr]   Downloaded dyn-clonable-impl v0.9.0
[INFO] [stderr]   Downloaded sp-panic-handler v2.0.0-rc6
[INFO] [stderr]   Downloaded hash-db v0.15.2
[INFO] [stderr]   Downloaded byte-slice-cast v0.3.5
[INFO] [stderr]   Downloaded hmac-drbg v0.2.0
[INFO] [stderr]   Downloaded curve25519-dalek v3.0.0
[INFO] [stderr]   Downloaded schnorrkel v0.9.1
[INFO] [stderr]   Downloaded fixed-hash v0.6.1
[INFO] [stderr]   Downloaded hash256-std-hasher v0.15.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 5c75bc918fceb209e00f35760cb2dee7e7ddfd49fced32a91f3ff5262bb26e3f
[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" "5c75bc918fceb209e00f35760cb2dee7e7ddfd49fced32a91f3ff5262bb26e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c75bc918fceb209e00f35760cb2dee7e7ddfd49fced32a91f3ff5262bb26e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c75bc918fceb209e00f35760cb2dee7e7ddfd49fced32a91f3ff5262bb26e3f", kill_on_drop: false }`
[INFO] [stdout] 5c75bc918fceb209e00f35760cb2dee7e7ddfd49fced32a91f3ff5262bb26e3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 610f3a41b26ce70cb213c9d36cc13c1fb3c258ab402971be5f0b4a6437c8bfaf
[INFO] running `Command { std: "docker" "start" "-a" "610f3a41b26ce70cb213c9d36cc13c1fb3c258ab402971be5f0b4a6437c8bfaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling sp-api-proc-macro v2.0.0-rc6
[INFO] [stderr]     Checking sp-api v2.0.0-rc6
[INFO] [stderr]  Documenting frame-system-rpc-runtime-api v2.0.0-rc6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.59s
[INFO] running `Command { std: "docker" "inspect" "610f3a41b26ce70cb213c9d36cc13c1fb3c258ab402971be5f0b4a6437c8bfaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "610f3a41b26ce70cb213c9d36cc13c1fb3c258ab402971be5f0b4a6437c8bfaf", kill_on_drop: false }`
[INFO] [stdout] 610f3a41b26ce70cb213c9d36cc13c1fb3c258ab402971be5f0b4a6437c8bfaf