[INFO] fetching crate futures-promises 0.1.11...
[INFO] documenting futures-promises-0.1.11 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate futures-promises 0.1.11 into /workspace/builds/worker-69/source
[INFO] validating manifest of crates.io crate futures-promises 0.1.11 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-promises 0.1.11
[INFO] finished tweaking crates.io crate futures-promises 0.1.11
[INFO] tweaked toml for crates.io crate futures-promises 0.1.11 written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1eb8f60b12df10a19c3f87c1ae977aaa81efdc887e4a8288c9c118e95aa648d
[INFO] running `Command { std: "docker" "start" "-a" "c1eb8f60b12df10a19c3f87c1ae977aaa81efdc887e4a8288c9c118e95aa648d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1eb8f60b12df10a19c3f87c1ae977aaa81efdc887e4a8288c9c118e95aa648d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1eb8f60b12df10a19c3f87c1ae977aaa81efdc887e4a8288c9c118e95aa648d", kill_on_drop: false }`
[INFO] [stdout] c1eb8f60b12df10a19c3f87c1ae977aaa81efdc887e4a8288c9c118e95aa648d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 688407b728275657622f2774e6e6bb1759029a860ec4872f8b42875cd8137caa
[INFO] running `Command { std: "docker" "start" "-a" "688407b728275657622f2774e6e6bb1759029a860ec4872f8b42875cd8137caa", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]  Documenting futures-promises v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]   --> src/lib.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |             match (&mut guard.1) {
[INFO] [stdout]    |                   ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -             match (&mut guard.1) {
[INFO] [stdout] 55 +             match &mut guard.1 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "688407b728275657622f2774e6e6bb1759029a860ec4872f8b42875cd8137caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "688407b728275657622f2774e6e6bb1759029a860ec4872f8b42875cd8137caa", kill_on_drop: false }`
[INFO] [stdout] 688407b728275657622f2774e6e6bb1759029a860ec4872f8b42875cd8137caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 819bb3306b60cba76787e4e628668832b76f033055a24586bb10c351465dac56
[INFO] running `Command { std: "docker" "start" "-a" "819bb3306b60cba76787e4e628668832b76f033055a24586bb10c351465dac56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]  Documenting futures-promises v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]   --> src/lib.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |             match (&mut guard.1) {
[INFO] [stdout]    |                   ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -             match (&mut guard.1) {
[INFO] [stdout] 55 +             match &mut guard.1 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "819bb3306b60cba76787e4e628668832b76f033055a24586bb10c351465dac56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "819bb3306b60cba76787e4e628668832b76f033055a24586bb10c351465dac56", kill_on_drop: false }`
[INFO] [stdout] 819bb3306b60cba76787e4e628668832b76f033055a24586bb10c351465dac56