[INFO] crate cfg 0.5.0 is already in cache
[INFO] documenting cfg-0.5.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate cfg 0.5.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate cfg 0.5.0 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cfg 0.5.0
[INFO] finished tweaking crates.io crate cfg 0.5.0
[INFO] tweaked toml for crates.io crate cfg 0.5.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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" "+394e1b40d264aa6928811919c1124fa248e7d802" "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" "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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33ec6f67b821c4f031874167d930f08f7c324a789678ec52995ac7a3d1889a5a
[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" "33ec6f67b821c4f031874167d930f08f7c324a789678ec52995ac7a3d1889a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33ec6f67b821c4f031874167d930f08f7c324a789678ec52995ac7a3d1889a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ec6f67b821c4f031874167d930f08f7c324a789678ec52995ac7a3d1889a5a", kill_on_drop: false }`
[INFO] [stdout] 33ec6f67b821c4f031874167d930f08f7c324a789678ec52995ac7a3d1889a5a
[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" "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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0ba0b1ad669573cf881b863bf0a0f839f99f8016da52526b11e0bc9a438fbd
[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" "6a0ba0b1ad669573cf881b863bf0a0f839f99f8016da52526b11e0bc9a438fbd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking optional v0.5.0
[INFO] [stderr]     Checking bit-matrix v0.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]  Documenting cfg v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/symbol/source.rs:48:34
[INFO] [stdout]     |
[INFO] [stdout] 48  |           impl SymbolContainer for ( Symbol $(, $T)* ) {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 60  | / impl_generate!(
[INFO] [stdout] 61  | |     Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym,
[INFO] [stdout] 62  | |     Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym,
[INFO] [stdout] 63  | |     Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym,
[INFO] [stdout] ...   |
[INFO] [stdout] 106 | |     Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym,
[INFO] [stdout] 107 | | );
[INFO] [stdout]     | |__- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.41s
[INFO] running `Command { std: "docker" "inspect" "6a0ba0b1ad669573cf881b863bf0a0f839f99f8016da52526b11e0bc9a438fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0ba0b1ad669573cf881b863bf0a0f839f99f8016da52526b11e0bc9a438fbd", kill_on_drop: false }`
[INFO] [stdout] 6a0ba0b1ad669573cf881b863bf0a0f839f99f8016da52526b11e0bc9a438fbd