[INFO] fetching crate piface 0.1.1...
[INFO] documenting piface-0.1.1 against 1.75.0 for beta-1.76-rustdoc-2
[INFO] extracting crate piface 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate piface 0.1.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piface 0.1.1
[INFO] finished tweaking crates.io crate piface 0.1.1
[INFO] tweaked toml for crates.io crate piface 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate piface 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded humantime v2.1.0
[INFO] [stderr]   Downloaded thiserror v1.0.30
[INFO] [stderr]   Downloaded thiserror-impl v1.0.30
[INFO] [stderr]   Downloaded eui48 v1.1.0
[INFO] [stderr]   Downloaded env_logger v0.9.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.32
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded nix v0.23.0
[INFO] [stderr]   Downloaded syn v1.0.82
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5aa1401f434e966e97fe845942f58af7d053ed1682255fee98186d11d831174
[INFO] running `Command { std: "docker" "start" "-a" "e5aa1401f434e966e97fe845942f58af7d053ed1682255fee98186d11d831174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5aa1401f434e966e97fe845942f58af7d053ed1682255fee98186d11d831174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5aa1401f434e966e97fe845942f58af7d053ed1682255fee98186d11d831174", kill_on_drop: false }`
[INFO] [stdout] e5aa1401f434e966e97fe845942f58af7d053ed1682255fee98186d11d831174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a91ff557021a1c2cfe9216babdc7712e583fc5ddb4a4d9286716422ce187349
[INFO] running `Command { std: "docker" "start" "-a" "6a91ff557021a1c2cfe9216babdc7712e583fc5ddb4a4d9286716422ce187349", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking nix v0.23.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking eui48 v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]  Documenting piface v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/interface/nix.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | /// This was largely taken from https://github.com/repnop/mac_address/blob/master/src/linux.rs
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/repnop/mac_address/blob/master/src/linux.rs>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout]   = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] WARN rustc_errors::emitter Invalid span src/interface/mod.rs:12:1: 7:95 (#0), error=DistinctSources(DistinctSources { begin: (Real(LocalPath("src/interface/mod.rs")), BytePos(3318)), end: (Real(LocalPath("src/interface/nix.rs")), BytePos(5712)) })
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/interface/mod.rs:12:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | |
[INFO] [stdout]   | |______________________________________________________________________________________________^ help: use an automatic link instead: `<https://github.com/repnop/mac_address/blob/master/src/linux.rs>`
[INFO] [stdout] ...
[INFO] [stdout] 12| / /// Underlying function call specific to the operating system to pull a mac address for a passed interface
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.06s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/piface/index.html
[INFO] running `Command { std: "docker" "inspect" "6a91ff557021a1c2cfe9216babdc7712e583fc5ddb4a4d9286716422ce187349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a91ff557021a1c2cfe9216babdc7712e583fc5ddb4a4d9286716422ce187349", kill_on_drop: false }`
[INFO] [stdout] 6a91ff557021a1c2cfe9216babdc7712e583fc5ddb4a4d9286716422ce187349
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a96e21158a89cfb316072c53efb11c90a0900c4cc628657a3164c9640855ceb4
[INFO] running `Command { std: "docker" "start" "-a" "a96e21158a89cfb316072c53efb11c90a0900c4cc628657a3164c9640855ceb4", kill_on_drop: false }`
[INFO] [stderr]  Documenting piface v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/interface/nix.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | /// This was largely taken from https://github.com/repnop/mac_address/blob/master/src/linux.rs
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/repnop/mac_address/blob/master/src/linux.rs>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout]   = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] WARN rustc_errors::emitter Invalid span src/interface/mod.rs:12:1: 7:95 (#0), error=DistinctSources(DistinctSources { begin: (Real(LocalPath("src/interface/mod.rs")), BytePos(3318)), end: (Real(LocalPath("src/interface/nix.rs")), BytePos(5712)) })
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/interface/mod.rs:12:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | |
[INFO] [stdout]   | |______________________________________________________________________________________________^ help: use an automatic link instead: `<https://github.com/repnop/mac_address/blob/master/src/linux.rs>`
[INFO] [stdout] ...
[INFO] [stdout] 12| / /// Underlying function call specific to the operating system to pull a mac address for a passed interface
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/piface/index.html
[INFO] running `Command { std: "docker" "inspect" "a96e21158a89cfb316072c53efb11c90a0900c4cc628657a3164c9640855ceb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a96e21158a89cfb316072c53efb11c90a0900c4cc628657a3164c9640855ceb4", kill_on_drop: false }`
[INFO] [stdout] a96e21158a89cfb316072c53efb11c90a0900c4cc628657a3164c9640855ceb4