[INFO] fetching crate merge-io 0.3.0...
[INFO] documenting merge-io-0.3.0 against beta-2022-05-20 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 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 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" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42d5077b56670472dbb10f70af8fc84e1e680daff3b334e1d61b6def1e77046a
[INFO] running `Command { std: "docker" "start" "-a" "42d5077b56670472dbb10f70af8fc84e1e680daff3b334e1d61b6def1e77046a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42d5077b56670472dbb10f70af8fc84e1e680daff3b334e1d61b6def1e77046a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42d5077b56670472dbb10f70af8fc84e1e680daff3b334e1d61b6def1e77046a", kill_on_drop: false }`
[INFO] [stdout] 42d5077b56670472dbb10f70af8fc84e1e680daff3b334e1d61b6def1e77046a
[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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb16c7ee158a005b0c0db69b90e5672cbb2f2b307a814e0906c2ab6bb6da381d
[INFO] running `Command { std: "docker" "start" "-a" "cb16c7ee158a005b0c0db69b90e5672cbb2f2b307a814e0906c2ab6bb6da381d", 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 1.28s
[INFO] running `Command { std: "docker" "inspect" "cb16c7ee158a005b0c0db69b90e5672cbb2f2b307a814e0906c2ab6bb6da381d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb16c7ee158a005b0c0db69b90e5672cbb2f2b307a814e0906c2ab6bb6da381d", kill_on_drop: false }`
[INFO] [stdout] cb16c7ee158a005b0c0db69b90e5672cbb2f2b307a814e0906c2ab6bb6da381d
[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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 0680b4d4643f1a3fe0ed30365245634e645f39dce369454d82003886045e9c49
[INFO] running `Command { std: "docker" "start" "-a" "0680b4d4643f1a3fe0ed30365245634e645f39dce369454d82003886045e9c49", 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 1.32s
[INFO] running `Command { std: "docker" "inspect" "0680b4d4643f1a3fe0ed30365245634e645f39dce369454d82003886045e9c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0680b4d4643f1a3fe0ed30365245634e645f39dce369454d82003886045e9c49", kill_on_drop: false }`
[INFO] [stdout] 0680b4d4643f1a3fe0ed30365245634e645f39dce369454d82003886045e9c49