[INFO] crate tokio-tower 0.4.0 is already in cache
[INFO] documenting tokio-tower-0.4.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate tokio-tower 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tokio-tower 0.4.0 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-tower 0.4.0
[INFO] finished tweaking crates.io crate tokio-tower 0.4.0
[INFO] tweaked toml for crates.io crate tokio-tower 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] 7d010e7f81d8554d17db70ec035f68b7c1c90dbeb48f2aa1d486b4bb843e5622
[INFO] running `Command { std: "docker" "start" "-a" "7d010e7f81d8554d17db70ec035f68b7c1c90dbeb48f2aa1d486b4bb843e5622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d010e7f81d8554d17db70ec035f68b7c1c90dbeb48f2aa1d486b4bb843e5622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d010e7f81d8554d17db70ec035f68b7c1c90dbeb48f2aa1d486b4bb843e5622", kill_on_drop: false }`
[INFO] [stdout] 7d010e7f81d8554d17db70ec035f68b7c1c90dbeb48f2aa1d486b4bb843e5622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15398fbea32a2bc83a7f8181103bab8ce47bff5da73836e610442c3e7f58c81a
[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" "15398fbea32a2bc83a7f8181103bab8ce47bff5da73836e610442c3e7f58c81a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking tracing v0.1.15
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking tower-discover v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tower-load v0.3.0
[INFO] [stderr]  Documenting tokio-tower v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[Client::with_limit]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/error.rs:20:57
[INFO] [stdout]    |
[INFO] [stdout] 20 |     /// See [`tower_service::Service::poll_ready`] and [`Client::with_limit`].
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Client::with_limit]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/error.rs:20:57
[INFO] [stdout]    |
[INFO] [stdout] 20 |     /// See [`tower_service::Service::poll_ready`] and [`Client::with_limit`].
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[client::Transport]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/multiplex/mod.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | / pub struct MultiplexTransport<T, S> {
[INFO] [stdout] 33 | |     #[pin]
[INFO] [stdout] 34 | |     transport: T,
[INFO] [stdout] 35 | |     #[pin]
[INFO] [stdout] 36 | |     tagger: S,
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            a single [`client::Transport`].
[INFO] [stdout]                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: to escape `[` and `]` characters, just 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 29.98s
[INFO] running `Command { std: "docker" "inspect" "15398fbea32a2bc83a7f8181103bab8ce47bff5da73836e610442c3e7f58c81a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15398fbea32a2bc83a7f8181103bab8ce47bff5da73836e610442c3e7f58c81a", kill_on_drop: false }`
[INFO] [stdout] 15398fbea32a2bc83a7f8181103bab8ce47bff5da73836e610442c3e7f58c81a