[INFO] fetching crate alto 3.0.4...
[INFO] documenting alto-3.0.4 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate alto 3.0.4 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate alto 3.0.4 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 alto 3.0.4
[INFO] finished tweaking crates.io crate alto 3.0.4
[INFO] tweaked toml for crates.io crate alto 3.0.4 written to /workspace/builds/worker-49/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded al-sys v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 992e1967e45cb2d2732130a04b9ba2b4ea4fa67e2ca3a0c14cb2b862313e6c4a
[INFO] running `Command { std: "docker" "start" "-a" "992e1967e45cb2d2732130a04b9ba2b4ea4fa67e2ca3a0c14cb2b862313e6c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "992e1967e45cb2d2732130a04b9ba2b4ea4fa67e2ca3a0c14cb2b862313e6c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "992e1967e45cb2d2732130a04b9ba2b4ea4fa67e2ca3a0c14cb2b862313e6c4a", kill_on_drop: false }`
[INFO] [stdout] 992e1967e45cb2d2732130a04b9ba2b4ea4fa67e2ca3a0c14cb2b862313e6c4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] abb7a834afdde35e63928b157bf253bfde44213597580691e375b426f47edae9
[INFO] running `Command { std: "docker" "start" "-a" "abb7a834afdde35e63928b157bf253bfde44213597580691e375b426f47edae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling al-sys v0.6.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]     Checking rental v0.5.6
[INFO] [stderr]  Documenting alto v3.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.15s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: al-sys v0.6.1, rental v0.5.6
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "abb7a834afdde35e63928b157bf253bfde44213597580691e375b426f47edae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb7a834afdde35e63928b157bf253bfde44213597580691e375b426f47edae9", kill_on_drop: false }`
[INFO] [stdout] abb7a834afdde35e63928b157bf253bfde44213597580691e375b426f47edae9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 2e964cef5687de43046277807b505a0a2a54f95a9d61a5eb6a97e66c5188d47d
[INFO] running `Command { std: "docker" "start" "-a" "2e964cef5687de43046277807b505a0a2a54f95a9d61a5eb6a97e66c5188d47d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling al-sys v0.6.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]     Checking rental v0.5.6
[INFO] [stderr]  Documenting alto v3.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.42s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: al-sys v0.6.1, rental v0.5.6
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "2e964cef5687de43046277807b505a0a2a54f95a9d61a5eb6a97e66c5188d47d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e964cef5687de43046277807b505a0a2a54f95a9d61a5eb6a97e66c5188d47d", kill_on_drop: false }`
[INFO] [stdout] 2e964cef5687de43046277807b505a0a2a54f95a9d61a5eb6a97e66c5188d47d