[INFO] fetching crate rlpx 0.4.1...
[INFO] documenting rlpx-0.4.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rlpx 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rlpx 0.4.1 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 rlpx 0.4.1
[INFO] finished tweaking crates.io crate rlpx 0.4.1
[INFO] tweaked toml for crates.io crate rlpx 0.4.1 written to /workspace/builds/worker-6/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 hmac v0.4.2
[INFO] [stderr]   Downloaded ethereum-rlp v0.2.3
[INFO] [stderr]   Downloaded elastic-array-plus v0.9.1
[INFO] [stderr]   Downloaded digest v0.6.2
[INFO] [stderr]   Downloaded sha3 v0.6.0
[INFO] [stderr]   Downloaded libsecp256k1 v0.1.15
[INFO] [stderr]   Downloaded ethereum-bigint v0.2.9
[INFO] [stderr]   Downloaded ethereum-hexutil v0.2.3
[INFO] [stderr]   Downloaded hmac-drbg v0.1.2
[INFO] [stderr]   Downloaded sha2 v0.6.0
[INFO] [stderr]   Downloaded block-buffer v0.2.0
[INFO] [stderr]   Downloaded generic-array v0.8.3
[INFO] [stderr]   Downloaded crypto-mac v0.4.0
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a6666b305804b96f39f0b925d5637b4fe9364ed8c22d857b2eefb1603371823c
[INFO] running `Command { std: "docker" "start" "-a" "a6666b305804b96f39f0b925d5637b4fe9364ed8c22d857b2eefb1603371823c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6666b305804b96f39f0b925d5637b4fe9364ed8c22d857b2eefb1603371823c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6666b305804b96f39f0b925d5637b4fe9364ed8c22d857b2eefb1603371823c", kill_on_drop: false }`
[INFO] [stdout] a6666b305804b96f39f0b925d5637b4fe9364ed8c22d857b2eefb1603371823c
[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] 365b991a7a2e933fcd13284cc7ab571082a30cbefa88cdd108807f74fab01ebd
[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" "365b991a7a2e933fcd13284cc7ab571082a30cbefa88cdd108807f74fab01ebd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking ethereum-hexutil v0.2.3
[INFO] [stderr]     Checking elastic-array-plus v0.9.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking hmac v0.4.2
[INFO] [stderr]     Checking ethereum-rlp v0.2.3
[INFO] [stderr]     Checking hmac-drbg v0.1.2
[INFO] [stderr]     Checking sha2 v0.6.0
[INFO] [stderr]     Checking sha3 v0.6.0
[INFO] [stderr]     Checking libsecp256k1 v0.1.15
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking ethereum-bigint v0.2.9
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]  Documenting rlpx v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.65s
[INFO] running `Command { std: "docker" "inspect" "365b991a7a2e933fcd13284cc7ab571082a30cbefa88cdd108807f74fab01ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365b991a7a2e933fcd13284cc7ab571082a30cbefa88cdd108807f74fab01ebd", kill_on_drop: false }`
[INFO] [stdout] 365b991a7a2e933fcd13284cc7ab571082a30cbefa88cdd108807f74fab01ebd