[INFO] fetching crate iota-core 0.2.0-alpha.3...
[INFO] documenting iota-core-0.2.0-alpha.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate iota-core 0.2.0-alpha.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate iota-core 0.2.0-alpha.3 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iota-core 0.2.0-alpha.3
[INFO] finished tweaking crates.io crate iota-core 0.2.0-alpha.3
[INFO] tweaked toml for crates.io crate iota-core 0.2.0-alpha.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3da9de069c82d45cd7e4b0a725234b9eb77ef20247c1a8162462064a51443c1
[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" "e3da9de069c82d45cd7e4b0a725234b9eb77ef20247c1a8162462064a51443c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3da9de069c82d45cd7e4b0a725234b9eb77ef20247c1a8162462064a51443c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3da9de069c82d45cd7e4b0a725234b9eb77ef20247c1a8162462064a51443c1", kill_on_drop: false }`
[INFO] [stdout] e3da9de069c82d45cd7e4b0a725234b9eb77ef20247c1a8162462064a51443c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31a08c0185590fa477e2e0e8f7a2bf1948f9783f6edb84237d47dae2d1128ce9
[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" "31a08c0185590fa477e2e0e8f7a2bf1948f9783f6edb84237d47dae2d1128ce9", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking iota-constants v0.2.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking iota-common-preview v0.1.0
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]     Checking iota-conversion v0.5.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking iota-ternary-preview v0.1.0
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]     Checking iota-crypto-preview v0.1.0
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking iota-pow-preview v0.1.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.0
[INFO] [stderr]     Checking iota-signing-preview v0.1.0
[INFO] [stderr]     Checking iota-bundle-preview v0.1.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking iota-client v0.5.0-alpha.3
[INFO] [stderr]  Documenting iota-core v0.2.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.19s
[INFO] running `Command { std: "docker" "inspect" "31a08c0185590fa477e2e0e8f7a2bf1948f9783f6edb84237d47dae2d1128ce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a08c0185590fa477e2e0e8f7a2bf1948f9783f6edb84237d47dae2d1128ce9", kill_on_drop: false }`
[INFO] [stdout] 31a08c0185590fa477e2e0e8f7a2bf1948f9783f6edb84237d47dae2d1128ce9