[INFO] fetching crate frequency-hashmap 1.1.0...
[INFO] documenting frequency-hashmap-1.1.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate frequency-hashmap 1.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate frequency-hashmap 1.1.0 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 frequency-hashmap 1.1.0
[INFO] removed path dependency frequency from crates.io crate frequency-hashmap 1.1.0
[INFO] finished tweaking crates.io crate frequency-hashmap 1.1.0
[INFO] tweaked toml for crates.io crate frequency-hashmap 1.1.0 written to /workspace/builds/worker-9/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] f7a256b12200d3e62dc1a8aa3e658b14323687deb64421c3cbc64bfe02ed78cc
[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" "f7a256b12200d3e62dc1a8aa3e658b14323687deb64421c3cbc64bfe02ed78cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7a256b12200d3e62dc1a8aa3e658b14323687deb64421c3cbc64bfe02ed78cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a256b12200d3e62dc1a8aa3e658b14323687deb64421c3cbc64bfe02ed78cc", kill_on_drop: false }`
[INFO] [stdout] f7a256b12200d3e62dc1a8aa3e658b14323687deb64421c3cbc64bfe02ed78cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] dd0f0a22e72913f4a9d6366f2a2029d56c7e7a78053f3116b7bacd577c4e9959
[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" "dd0f0a22e72913f4a9d6366f2a2029d56c7e7a78053f3116b7bacd577c4e9959", kill_on_drop: false }`
[INFO] [stderr]     Checking frequency v1.0.1
[INFO] [stderr]  Documenting frequency-hashmap v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     /// ```
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 106 |     /// ```text
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     /// ```
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 128 |     /// ```text
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     /// ```
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 174 |     /// ```text
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "dd0f0a22e72913f4a9d6366f2a2029d56c7e7a78053f3116b7bacd577c4e9959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0f0a22e72913f4a9d6366f2a2029d56c7e7a78053f3116b7bacd577c4e9959", kill_on_drop: false }`
[INFO] [stdout] dd0f0a22e72913f4a9d6366f2a2029d56c7e7a78053f3116b7bacd577c4e9959