[INFO] fetching crate susywasm 0.31.3...
[INFO] documenting susywasm-0.31.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate susywasm 0.31.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate susywasm 0.31.3 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 susywasm 0.31.3
[INFO] finished tweaking crates.io crate susywasm 0.31.3
[INFO] tweaked toml for crates.io crate susywasm 0.31.3 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] d876cb4e56dbb69fa54e131c58a0157872f087e408eb58d2f8db8a297ef30908
[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" "d876cb4e56dbb69fa54e131c58a0157872f087e408eb58d2f8db8a297ef30908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d876cb4e56dbb69fa54e131c58a0157872f087e408eb58d2f8db8a297ef30908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d876cb4e56dbb69fa54e131c58a0157872f087e408eb58d2f8db8a297ef30908", kill_on_drop: false }`
[INFO] [stdout] d876cb4e56dbb69fa54e131c58a0157872f087e408eb58d2f8db8a297ef30908
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b330ae48d4a52e02874b2e9131dbbf2ec887e1412b33a2792bb5ec120e23dac
[INFO] running `Command { std: "docker" "start" "-a" "6b330ae48d4a52e02874b2e9131dbbf2ec887e1412b33a2792bb5ec120e23dac", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]  Documenting susywasm v0.31.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `Command { std: "docker" "inspect" "6b330ae48d4a52e02874b2e9131dbbf2ec887e1412b33a2792bb5ec120e23dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b330ae48d4a52e02874b2e9131dbbf2ec887e1412b33a2792bb5ec120e23dac", kill_on_drop: false }`
[INFO] [stdout] 6b330ae48d4a52e02874b2e9131dbbf2ec887e1412b33a2792bb5ec120e23dac