[INFO] fetching crate mwmatching 0.1.1...
[INFO] documenting mwmatching-0.1.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate mwmatching 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mwmatching 0.1.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mwmatching 0.1.1
[INFO] finished tweaking crates.io crate mwmatching 0.1.1
[INFO] tweaked toml for crates.io crate mwmatching 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", 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] e23fa1a33733b10ef07470210df6c5e5a3b78ca00c73026eb4fe5a801c4ab262
[INFO] running `Command { std: "docker" "start" "-a" "e23fa1a33733b10ef07470210df6c5e5a3b78ca00c73026eb4fe5a801c4ab262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e23fa1a33733b10ef07470210df6c5e5a3b78ca00c73026eb4fe5a801c4ab262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23fa1a33733b10ef07470210df6c5e5a3b78ca00c73026eb4fe5a801c4ab262", kill_on_drop: false }`
[INFO] [stdout] e23fa1a33733b10ef07470210df6c5e5a3b78ca00c73026eb4fe5a801c4ab262
[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" "+beta-2020-10-09" "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] a9ca7d1566783b94522d268ed226113b0f136c6b523133fadb1064d3b1312082
[INFO] running `Command { std: "docker" "start" "-a" "a9ca7d1566783b94522d268ed226113b0f136c6b523133fadb1064d3b1312082", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting mwmatching v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/lib.rs:1083:60
[INFO] [stdout]      |
[INFO] [stdout] 1083 |     let actual_index = if index>= 0 {index as usize} else {(v.len()-(-index) as usize)};
[INFO] [stdout]      |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `split:`
[INFO] [stdout]     --> src/lib.rs:1073:11
[INFO] [stdout]      |
[INFO] [stdout] 1073 | /// v = v[split:] + v[:split]
[INFO] [stdout]      |           ^^^^^^ the module `mwmatching` contains no item named `split:`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout]      = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `:split`
[INFO] [stdout]     --> src/lib.rs:1073:23
[INFO] [stdout]      |
[INFO] [stdout] 1073 | /// v = v[split:] + v[:split]
[INFO] [stdout]      |                       ^^^^^^ the module `mwmatching` contains no item named `:split`
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "a9ca7d1566783b94522d268ed226113b0f136c6b523133fadb1064d3b1312082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9ca7d1566783b94522d268ed226113b0f136c6b523133fadb1064d3b1312082", kill_on_drop: false }`
[INFO] [stdout] a9ca7d1566783b94522d268ed226113b0f136c6b523133fadb1064d3b1312082
