[INFO] fetching crate hypercore-protocol 0.0.2...
[INFO] documenting hypercore-protocol-0.0.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate hypercore-protocol 0.0.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hypercore-protocol 0.0.2 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 hypercore-protocol 0.0.2
[INFO] finished tweaking crates.io crate hypercore-protocol 0.0.2
[INFO] tweaked toml for crates.io crate hypercore-protocol 0.0.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate hypercore-protocol 0.0.2 already has a lockfile, it will not be regenerated
[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 tinytemplate v1.0.4
[INFO] [stderr]   Downloaded oorandom v11.1.1
[INFO] [stderr]   Downloaded x25519-dalek v0.6.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.62
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.62
[INFO] [stderr]   Downloaded async-trait v0.1.30
[INFO] [stderr]   Downloaded poly1305 v0.5.2
[INFO] [stderr]   Downloaded futures-timer v3.0.2
[INFO] [stderr]   Downloaded send_wrapper v0.4.0
[INFO] [stderr]   Downloaded gloo-timers v0.2.1
[INFO] [stderr]   Downloaded failure v0.1.7
[INFO] [stderr]   Downloaded pretty-bytes v0.2.2
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.62
[INFO] [stderr]   Downloaded js-sys v0.3.39
[INFO] [stderr]   Downloaded anyhow v1.0.28
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.62
[INFO] [stderr]   Downloaded duplexify v1.1.0
[INFO] [stderr]   Downloaded salsa20 v0.4.1
[INFO] [stderr]   Downloaded petgraph v0.5.0
[INFO] [stderr]   Downloaded piper v0.1.1
[INFO] [stderr]   Downloaded stream-cipher v0.3.2
[INFO] [stderr]   Downloaded backtrace-sys v0.1.35
[INFO] [stderr]   Downloaded chacha20 v0.3.4
[INFO] [stderr]   Downloaded subtle v2.2.2
[INFO] [stderr]   Downloaded web-sys v0.3.39
[INFO] [stderr]   Downloaded instant v0.1.2
[INFO] [stderr]   Downloaded chacha20poly1305 v0.4.1
[INFO] [stderr]   Downloaded curve25519-dalek v2.0.0
[INFO] [stderr]   Downloaded regex v1.3.6
[INFO] [stderr]   Downloaded varinteger v1.0.6
[INFO] [stderr]   Downloaded plotters v0.2.14
[INFO] [stderr]   Downloaded serde_json v1.0.52
[INFO] [stderr]   Downloaded pretty-hash v0.4.1
[INFO] [stderr]   Downloaded random-access-memory v2.0.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.62
[INFO] [stderr]   Downloaded snow v0.7.0-alpha5
[INFO] [stderr]   Downloaded random-access-storage v4.0.0
[INFO] [stderr]   Downloaded failure_derive v0.1.7
[INFO] [stderr]   Downloaded random-access-disk v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8c1b0c103133ccbf5ab981b49e97c1a9204808a16c2acaf58096d0f786f05542
[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" "8c1b0c103133ccbf5ab981b49e97c1a9204808a16c2acaf58096d0f786f05542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c1b0c103133ccbf5ab981b49e97c1a9204808a16c2acaf58096d0f786f05542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c1b0c103133ccbf5ab981b49e97c1a9204808a16c2acaf58096d0f786f05542", kill_on_drop: false }`
[INFO] [stdout] 8c1b0c103133ccbf5ab981b49e97c1a9204808a16c2acaf58096d0f786f05542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 260266981d4e75535a99719e35824af481ca7162dbbed990ff089ab3d89c3f6d
[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" "260266981d4e75535a99719e35824af481ca7162dbbed990ff089ab3d89c3f6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking instant v0.1.2
[INFO] [stderr]     Checking varinteger v1.0.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling snow v0.7.0-alpha5
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking aead v0.2.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking poly1305 v0.5.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking salsa20 v0.4.1
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]     Checking chacha20 v0.3.4
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]     Checking chacha20poly1305 v0.4.1
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking pretty-hash v0.4.1
[INFO] [stderr]     Checking x25519-dalek v0.6.0
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling hypercore-protocol v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting hypercore-protocol v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "260266981d4e75535a99719e35824af481ca7162dbbed990ff089ab3d89c3f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "260266981d4e75535a99719e35824af481ca7162dbbed990ff089ab3d89c3f6d", kill_on_drop: false }`
[INFO] [stdout] 260266981d4e75535a99719e35824af481ca7162dbbed990ff089ab3d89c3f6d