[INFO] fetching crate pallet-session 2.0.0-rc6...
[INFO] documenting pallet-session-2.0.0-rc6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate pallet-session 2.0.0-rc6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate pallet-session 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 pallet-session 2.0.0-rc6
[INFO] finished tweaking crates.io crate pallet-session 2.0.0-rc6
[INFO] tweaked toml for crates.io crate pallet-session 2.0.0-rc6 written to /workspace/builds/worker-10/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] [stderr]     Blocking waiting for file lock on package cache
[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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] bd49916375840ff5e1953b4c81948b04b8caefa3a9125509ce67206c661bde09
[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" "bd49916375840ff5e1953b4c81948b04b8caefa3a9125509ce67206c661bde09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd49916375840ff5e1953b4c81948b04b8caefa3a9125509ce67206c661bde09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd49916375840ff5e1953b4c81948b04b8caefa3a9125509ce67206c661bde09", kill_on_drop: false }`
[INFO] [stdout] bd49916375840ff5e1953b4c81948b04b8caefa3a9125509ce67206c661bde09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 1a6bff730fec107a51c08fe523e403cf36bf44dd8dd2c65b0a7b49ae486ad2fb
[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" "1a6bff730fec107a51c08fe523e403cf36bf44dd8dd2c65b0a7b49ae486ad2fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking statrs v0.10.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking sp-arithmetic v2.0.0-rc6
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]    Compiling sp-api-proc-macro v2.0.0-rc6
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking sp-wasm-interface v2.0.0-rc6
[INFO] [stderr]     Checking sp-runtime-interface v2.0.0-rc6
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking sp-core v2.0.0-rc6
[INFO] [stderr]     Checking wasm-timer v0.2.5
[INFO] [stderr]     Checking sp-trie v2.0.0-rc6
[INFO] [stderr]     Checking sp-inherents v2.0.0-rc6
[INFO] [stderr]     Checking frame-metadata v11.0.0-rc6
[INFO] [stderr]     Checking sp-state-machine v0.8.0-rc6
[INFO] [stderr]     Checking sp-io v2.0.0-rc6
[INFO] [stderr]     Checking sp-application-crypto v2.0.0-rc6
[INFO] [stderr]     Checking sp-runtime v2.0.0-rc6
[INFO] [stderr]     Checking linregress v0.1.7
[INFO] [stderr]     Checking sp-version v2.0.0-rc6
[INFO] [stderr]     Checking frame-support v2.0.0-rc6
[INFO] [stderr]     Checking sp-staking v2.0.0-rc6
[INFO] [stderr]     Checking sp-api v2.0.0-rc6
[INFO] [stderr]     Checking sp-timestamp v2.0.0-rc6
[INFO] [stderr]     Checking sp-session v2.0.0-rc6
[INFO] [stderr]     Checking frame-system v2.0.0-rc6
[INFO] [stderr]     Checking frame-benchmarking v2.0.0-rc6
[INFO] [stderr]     Checking pallet-timestamp v2.0.0-rc6
[INFO] [stderr]  Documenting pallet-session v2.0.0-rc6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "1a6bff730fec107a51c08fe523e403cf36bf44dd8dd2c65b0a7b49ae486ad2fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6bff730fec107a51c08fe523e403cf36bf44dd8dd2c65b0a7b49ae486ad2fb", kill_on_drop: false }`
[INFO] [stdout] 1a6bff730fec107a51c08fe523e403cf36bf44dd8dd2c65b0a7b49ae486ad2fb