[INFO] fetching crate forest_crypto 0.3.0...
[INFO] documenting forest_crypto-0.3.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate forest_crypto 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate forest_crypto 0.3.0 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 forest_crypto 0.3.0
[INFO] finished tweaking crates.io crate forest_crypto 0.3.0
[INFO] tweaked toml for crates.io crate forest_crypto 0.3.0 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 01628fbaa451a1b3359e8238ba752d58b160e4b22e6ba4d7654f1948b415bcb2
[INFO] running `Command { std: "docker" "start" "-a" "01628fbaa451a1b3359e8238ba752d58b160e4b22e6ba4d7654f1948b415bcb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01628fbaa451a1b3359e8238ba752d58b160e4b22e6ba4d7654f1948b415bcb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01628fbaa451a1b3359e8238ba752d58b160e4b22e6ba4d7654f1948b415bcb2", kill_on_drop: false }`
[INFO] [stdout] 01628fbaa451a1b3359e8238ba752d58b160e4b22e6ba4d7654f1948b415bcb2
[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] bbbf2d72178e9cf3867d3986c52d6604aac40a2997e76f5618bacb0061fefb7d
[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" "bbbf2d72178e9cf3867d3986c52d6604aac40a2997e76f5618bacb0061fefb7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling data-encoding v2.3.0
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]     Checking base-x v0.2.6
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking integer-encoding v1.1.5
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling fff_derive v0.2.2
[INFO] [stderr]    Compiling serde_tuple_macros v0.5.0
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling num-derive v0.3.2
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking multihash v0.10.1
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking sha2ni v0.8.5
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking fff v0.2.3
[INFO] [stderr]     Checking groupy v0.3.1
[INFO] [stderr]     Checking paired v0.20.1
[INFO] [stderr]     Checking data-encoding-macro v0.1.8
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]     Checking forest_cid v0.1.1
[INFO] [stderr]     Checking bls-signatures v0.6.1
[INFO] [stderr]     Checking serde_tuple v0.5.0
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking forest_encoding v0.1.2
[INFO] [stderr]     Checking forest_address v0.2.3
[INFO] [stderr]  Documenting forest_crypto v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.69s
[INFO] running `Command { std: "docker" "inspect" "bbbf2d72178e9cf3867d3986c52d6604aac40a2997e76f5618bacb0061fefb7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbbf2d72178e9cf3867d3986c52d6604aac40a2997e76f5618bacb0061fefb7d", kill_on_drop: false }`
[INFO] [stdout] bbbf2d72178e9cf3867d3986c52d6604aac40a2997e76f5618bacb0061fefb7d