[INFO] fetching crate mathml 0.4.4...
[INFO] documenting mathml-0.4.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mathml 0.4.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mathml 0.4.4 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 mathml 0.4.4
[INFO] finished tweaking crates.io crate mathml 0.4.4
[INFO] tweaked toml for crates.io crate mathml 0.4.4 written to /workspace/builds/worker-3/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e02331ec20c4eaf450319df43ab8e74599728eda073977512f9cf9d5af11699a
[INFO] running `Command { std: "docker" "start" "-a" "e02331ec20c4eaf450319df43ab8e74599728eda073977512f9cf9d5af11699a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e02331ec20c4eaf450319df43ab8e74599728eda073977512f9cf9d5af11699a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e02331ec20c4eaf450319df43ab8e74599728eda073977512f9cf9d5af11699a", kill_on_drop: false }`
[INFO] [stdout] e02331ec20c4eaf450319df43ab8e74599728eda073977512f9cf9d5af11699a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 80fed06cdb6ff8d2a101af9fab7f914f9b9b7d30bc27e47a424efb0b2c37a6d6
[INFO] running `Command { std: "docker" "start" "-a" "80fed06cdb6ff8d2a101af9fab7f914f9b9b7d30bc27e47a424efb0b2c37a6d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking roxmltree v0.10.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking serde_plain v0.3.0
[INFO] [stderr]  Documenting mathml v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/regexes.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | /// https://www.tutorialspoint.com/mathml/mathml_greek_letters.htm
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://www.tutorialspoint.com/mathml/mathml_greek_letters.htm>`
[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 9.55s
[INFO] running `Command { std: "docker" "inspect" "80fed06cdb6ff8d2a101af9fab7f914f9b9b7d30bc27e47a424efb0b2c37a6d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80fed06cdb6ff8d2a101af9fab7f914f9b9b7d30bc27e47a424efb0b2c37a6d6", kill_on_drop: false }`
[INFO] [stdout] 80fed06cdb6ff8d2a101af9fab7f914f9b9b7d30bc27e47a424efb0b2c37a6d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] ac961b2bfac2d4ba226f1525d17080942bc195be11ed10dbbae7866b577dc837
[INFO] running `Command { std: "docker" "start" "-a" "ac961b2bfac2d4ba226f1525d17080942bc195be11ed10dbbae7866b577dc837", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking roxmltree v0.10.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking serde_plain v0.3.0
[INFO] [stderr]  Documenting mathml v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/regexes.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | /// https://www.tutorialspoint.com/mathml/mathml_greek_letters.htm
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://www.tutorialspoint.com/mathml/mathml_greek_letters.htm>`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.48s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ac961b2bfac2d4ba226f1525d17080942bc195be11ed10dbbae7866b577dc837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac961b2bfac2d4ba226f1525d17080942bc195be11ed10dbbae7866b577dc837", kill_on_drop: false }`
[INFO] [stdout] ac961b2bfac2d4ba226f1525d17080942bc195be11ed10dbbae7866b577dc837