[INFO] fetching crate dashmap-shard 0.1.1...
[INFO] documenting dashmap-shard-0.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate dashmap-shard 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate dashmap-shard 0.1.1 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 dashmap-shard 0.1.1
[INFO] finished tweaking crates.io crate dashmap-shard 0.1.1
[INFO] tweaked toml for crates.io crate dashmap-shard 0.1.1 written to /workspace/builds/worker-9/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] [stderr]     Blocking waiting for file lock on package cache
[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] 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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01ce63f844d7087a2554927fee5cb5fca0cc517e32d8b47a63b48264ed06e65d
[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" "01ce63f844d7087a2554927fee5cb5fca0cc517e32d8b47a63b48264ed06e65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01ce63f844d7087a2554927fee5cb5fca0cc517e32d8b47a63b48264ed06e65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ce63f844d7087a2554927fee5cb5fca0cc517e32d8b47a63b48264ed06e65d", kill_on_drop: false }`
[INFO] [stdout] 01ce63f844d7087a2554927fee5cb5fca0cc517e32d8b47a63b48264ed06e65d
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d887a66e3bf026351f59eae717a4f2f5000e1a9032962307c01efbf58404d360
[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" "d887a66e3bf026351f59eae717a4f2f5000e1a9032962307c01efbf58404d360", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling dashmap-shard v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]  Documenting dashmap-shard v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1953:34
[INFO] [stdout]      |
[INFO] [stdout] 1953 |     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1973:34
[INFO] [stdout]      |
[INFO] [stdout] 1973 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1993:34
[INFO] [stdout]      |
[INFO] [stdout] 1993 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]      |                                  ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/map.rs:762:5
[INFO] [stdout]     |
[INFO] [stdout] 762 | /     pub fn get_hash_nocheck_key_value<Q: ?Sized>(&self, hash: u64, k: &Q) -> Option<(&K, &V)>
[INFO] [stdout] 763 | |     where
[INFO] [stdout] 764 | |         K: Borrow<Q>,
[INFO] [stdout] 765 | |         Q: Hash + Eq,
[INFO] [stdout] ...   |
[INFO] [stdout] 772 | |             })
[INFO] [stdout] 773 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:25:9
[INFO] [stdout]     |
[INFO] [stdout] 25  | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "d887a66e3bf026351f59eae717a4f2f5000e1a9032962307c01efbf58404d360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d887a66e3bf026351f59eae717a4f2f5000e1a9032962307c01efbf58404d360", kill_on_drop: false }`
[INFO] [stdout] d887a66e3bf026351f59eae717a4f2f5000e1a9032962307c01efbf58404d360