[INFO] fetching crate merge-io 0.3.0...
[INFO] documenting merge-io-0.3.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate merge-io 0.3.0 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate merge-io 0.3.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merge-io 0.3.0
[INFO] finished tweaking crates.io crate merge-io 0.3.0
[INFO] tweaked toml for crates.io crate merge-io 0.3.0 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f3f8678fb4f66e8f51f60a9d147dc596a38492dcb07be04daaf2636e1b617cc
[INFO] running `Command { std: "docker" "start" "-a" "8f3f8678fb4f66e8f51f60a9d147dc596a38492dcb07be04daaf2636e1b617cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f3f8678fb4f66e8f51f60a9d147dc596a38492dcb07be04daaf2636e1b617cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3f8678fb4f66e8f51f60a9d147dc596a38492dcb07be04daaf2636e1b617cc", kill_on_drop: false }`
[INFO] [stdout] 8f3f8678fb4f66e8f51f60a9d147dc596a38492dcb07be04daaf2636e1b617cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2d4c3d10929058d6bd0db57517b4df40c68eab957fa7c79ac92c5c69e343b71
[INFO] running `Command { std: "docker" "start" "-a" "d2d4c3d10929058d6bd0db57517b4df40c68eab957fa7c79ac92c5c69e343b71", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]  Documenting merge-io v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncRead`
[INFO] [stdout]  --> src/lib.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | //! Merge two separate [`AsyncRead`](futures::io::AsyncRead) and
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncWrite`
[INFO] [stdout]  --> src/lib.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | //! [`AsyncWrite`](futures::io::AsyncWrite) objects into a single I/O stream.
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncRead`
[INFO] [stdout]   --> src/lib.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 | /// [`AsyncRead`](futures::io::AsyncRead) (`R`) and
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncWrite`
[INFO] [stdout]   --> src/lib.rs:49:20
[INFO] [stdout]    |
[INFO] [stdout] 49 | /// [`AsyncWrite`](futures::io::AsyncWrite) (`W`).
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "d2d4c3d10929058d6bd0db57517b4df40c68eab957fa7c79ac92c5c69e343b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d4c3d10929058d6bd0db57517b4df40c68eab957fa7c79ac92c5c69e343b71", kill_on_drop: false }`
[INFO] [stdout] d2d4c3d10929058d6bd0db57517b4df40c68eab957fa7c79ac92c5c69e343b71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 99df6fdaec9f2d87ec42c6c24600400123604dbb580366b08601a280e15b75e9
[INFO] running `Command { std: "docker" "start" "-a" "99df6fdaec9f2d87ec42c6c24600400123604dbb580366b08601a280e15b75e9", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]  Documenting merge-io v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncRead`
[INFO] [stdout]  --> src/lib.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | //! Merge two separate [`AsyncRead`](futures::io::AsyncRead) and
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncWrite`
[INFO] [stdout]  --> src/lib.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | //! [`AsyncWrite`](futures::io::AsyncWrite) objects into a single I/O stream.
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncRead`
[INFO] [stdout]   --> src/lib.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 | /// [`AsyncRead`](futures::io::AsyncRead) (`R`) and
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `futures::io::AsyncWrite`
[INFO] [stdout]   --> src/lib.rs:49:20
[INFO] [stdout]    |
[INFO] [stdout] 49 | /// [`AsyncWrite`](futures::io::AsyncWrite) (`W`).
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^ no item named `futures` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "99df6fdaec9f2d87ec42c6c24600400123604dbb580366b08601a280e15b75e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99df6fdaec9f2d87ec42c6c24600400123604dbb580366b08601a280e15b75e9", kill_on_drop: false }`
[INFO] [stdout] 99df6fdaec9f2d87ec42c6c24600400123604dbb580366b08601a280e15b75e9