[INFO] fetching crate protocol 3.2.0...
[INFO] documenting protocol-3.2.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate protocol 3.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate protocol 3.2.0 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 protocol 3.2.0
[INFO] removed 6 missing examples
[INFO] finished tweaking crates.io crate protocol 3.2.0
[INFO] tweaked toml for crates.io crate protocol 3.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate protocol 3.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protocol-derive v3.2.0
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c760c0995fab78e665d60c126c4fcea90103aa6076a1fae64ee1080983bbd6d2
[INFO] running `Command { std: "docker" "start" "-a" "c760c0995fab78e665d60c126c4fcea90103aa6076a1fae64ee1080983bbd6d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c760c0995fab78e665d60c126c4fcea90103aa6076a1fae64ee1080983bbd6d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c760c0995fab78e665d60c126c4fcea90103aa6076a1fae64ee1080983bbd6d2", kill_on_drop: false }`
[INFO] [stdout] c760c0995fab78e665d60c126c4fcea90103aa6076a1fae64ee1080983bbd6d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 90b16ad9a38fde302083b36cd6e14f328551652410da2c78be36a6ce5c571c87
[INFO] running `Command { std: "docker" "start" "-a" "90b16ad9a38fde302083b36cd6e14f328551652410da2c78be36a6ce5c571c87", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]  Documenting protocol v3.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/wire/middleware/compression.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     /// https://en.wikipedia.org/wiki/Zlib
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://en.wikipedia.org/wiki/Zlib>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.97s
[INFO] running `Command { std: "docker" "inspect" "90b16ad9a38fde302083b36cd6e14f328551652410da2c78be36a6ce5c571c87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90b16ad9a38fde302083b36cd6e14f328551652410da2c78be36a6ce5c571c87", kill_on_drop: false }`
[INFO] [stdout] 90b16ad9a38fde302083b36cd6e14f328551652410da2c78be36a6ce5c571c87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 718cd793a10c5b175c32b0e7963d539590752450d4077419a1c22d62ff458813
[INFO] running `Command { std: "docker" "start" "-a" "718cd793a10c5b175c32b0e7963d539590752450d4077419a1c22d62ff458813", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]  Documenting protocol v3.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/wire/middleware/compression.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     /// https://en.wikipedia.org/wiki/Zlib
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://en.wikipedia.org/wiki/Zlib>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.22s
[INFO] running `Command { std: "docker" "inspect" "718cd793a10c5b175c32b0e7963d539590752450d4077419a1c22d62ff458813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718cd793a10c5b175c32b0e7963d539590752450d4077419a1c22d62ff458813", kill_on_drop: false }`
[INFO] [stdout] 718cd793a10c5b175c32b0e7963d539590752450d4077419a1c22d62ff458813