[INFO] fetching crate earth 0.0.2...
[INFO] documenting earth-0.0.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate earth 0.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate earth 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 earth 0.0.2
[INFO] finished tweaking crates.io crate earth 0.0.2
[INFO] tweaked toml for crates.io crate earth 0.0.2 written to /workspace/builds/worker-2/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string_cache v0.2.29
[INFO] [stderr]   Downloaded html5ever v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d2bc86cb9b741f4eda6e092969a6c27f4a30f310b46a6c7627206abad93b732a
[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" "d2bc86cb9b741f4eda6e092969a6c27f4a30f310b46a6c7627206abad93b732a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2bc86cb9b741f4eda6e092969a6c27f4a30f310b46a6c7627206abad93b732a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2bc86cb9b741f4eda6e092969a6c27f4a30f310b46a6c7627206abad93b732a", kill_on_drop: false }`
[INFO] [stdout] d2bc86cb9b741f4eda6e092969a6c27f4a30f310b46a6c7627206abad93b732a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 87fe1ec4799a3ca29fe67abb78add36d3aaafd88d7a8d88a633112702c22e384
[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" "87fe1ec4799a3ca29fe67abb78add36d3aaafd88d7a8d88a633112702c22e384", kill_on_drop: false }`
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]  Documenting earth v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/feed/content.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 | /             (self.mimetype == other.mimetype &&
[INFO] [stdout] 110 | |              self.source_uri.as_ref() == other.source_uri.as_ref())
[INFO] [stdout]     | |___________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 109 |             self.mimetype == other.mimetype &&
[INFO] [stdout] 110 |              self.source_uri.as_ref() == other.source_uri.as_ref()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.75s
[INFO] running `Command { std: "docker" "inspect" "87fe1ec4799a3ca29fe67abb78add36d3aaafd88d7a8d88a633112702c22e384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87fe1ec4799a3ca29fe67abb78add36d3aaafd88d7a8d88a633112702c22e384", kill_on_drop: false }`
[INFO] [stdout] 87fe1ec4799a3ca29fe67abb78add36d3aaafd88d7a8d88a633112702c22e384