[INFO] crate solana_libra_metrics 0.0.1-sol5 is already in cache
[INFO] documenting solana_libra_metrics-0.0.1-sol5 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate solana_libra_metrics 0.0.1-sol5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate solana_libra_metrics 0.0.1-sol5 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate solana_libra_metrics 0.0.1-sol5
[INFO] finished tweaking crates.io crate solana_libra_metrics 0.0.1-sol5
[INFO] tweaked toml for crates.io crate solana_libra_metrics 0.0.1-sol5 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d792b277a4026e8a667d227b8c3cbc71e1aa9df71de6e46311e975c97a172b0
[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" "2d792b277a4026e8a667d227b8c3cbc71e1aa9df71de6e46311e975c97a172b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d792b277a4026e8a667d227b8c3cbc71e1aa9df71de6e46311e975c97a172b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d792b277a4026e8a667d227b8c3cbc71e1aa9df71de6e46311e975c97a172b0", kill_on_drop: false }`
[INFO] [stdout] 2d792b277a4026e8a667d227b8c3cbc71e1aa9df71de6e46311e975c97a172b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] 1b5174ec1de355acaddc0f7abe3fac0fdbfc74ae9278ea52185a8e91a8d360f9
[INFO] running `Command { std: "docker" "start" "-a" "1b5174ec1de355acaddc0f7abe3fac0fdbfc74ae9278ea52185a8e91a8d360f9", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]     Checking slog-envlogger v2.2.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking solana_libra_failure_ext v0.0.1-sol5
[INFO] [stderr]     Checking solana_libra_logger v0.0.1-sol5
[INFO] [stderr]  Documenting solana_libra_metrics v0.0.1-sol5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[::Encoder]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/json_encoder.rs:12:41
[INFO] [stdout]    |
[INFO] [stdout] 12 | /// An implementation of an [`Encoder`](::Encoder) that converts a `MetricFamily` proto message
[INFO] [stdout]    |                                         ^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.27s
[INFO] running `Command { std: "docker" "inspect" "1b5174ec1de355acaddc0f7abe3fac0fdbfc74ae9278ea52185a8e91a8d360f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b5174ec1de355acaddc0f7abe3fac0fdbfc74ae9278ea52185a8e91a8d360f9", kill_on_drop: false }`
[INFO] [stdout] 1b5174ec1de355acaddc0f7abe3fac0fdbfc74ae9278ea52185a8e91a8d360f9