[INFO] fetching crate algorithms-edu 0.2.7...
[INFO] documenting algorithms-edu-0.2.7 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate algorithms-edu 0.2.7 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate algorithms-edu 0.2.7 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 algorithms-edu 0.2.7
[INFO] finished tweaking crates.io crate algorithms-edu 0.2.7
[INFO] tweaked toml for crates.io crate algorithms-edu 0.2.7 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate crates.io crate algorithms-edu 0.2.7 already has a lockfile, it will not be regenerated
[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-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 3fa343c015eae2177350c44aa8a2b2af86344e27a6b64a5eb72fe24eb23685c2
[INFO] running `Command { std: "docker" "start" "-a" "3fa343c015eae2177350c44aa8a2b2af86344e27a6b64a5eb72fe24eb23685c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fa343c015eae2177350c44aa8a2b2af86344e27a6b64a5eb72fe24eb23685c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa343c015eae2177350c44aa8a2b2af86344e27a6b64a5eb72fe24eb23685c2", kill_on_drop: false }`
[INFO] [stdout] 3fa343c015eae2177350c44aa8a2b2af86344e27a6b64a5eb72fe24eb23685c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 775524b556d2a193d7783b2f5c89c91c2d0194396219861fb7971f43c31350c5
[INFO] running `Command { std: "docker" "start" "-a" "775524b556d2a193d7783b2f5c89c91c2d0194396219861fb7971f43c31350c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking partial-min-max v0.4.0
[INFO] [stderr]     Checking disjoint-sets v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling priority-queue v1.0.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking ordered-float v2.0.1
[INFO] [stderr]     Checking kodama v0.2.3
[INFO] [stderr]  Documenting algorithms-edu v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/algo/graph/eulerian_path.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `Command { std: "docker" "inspect" "775524b556d2a193d7783b2f5c89c91c2d0194396219861fb7971f43c31350c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "775524b556d2a193d7783b2f5c89c91c2d0194396219861fb7971f43c31350c5", kill_on_drop: false }`
[INFO] [stdout] 775524b556d2a193d7783b2f5c89c91c2d0194396219861fb7971f43c31350c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "--html-in-header" "katex-header.html" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] e311bd1eb0fda8587af684dadf1471a7c8eeb1471bebfd50b4630b0266cc7b1a
[INFO] running `Command { std: "docker" "start" "-a" "e311bd1eb0fda8587af684dadf1471a7c8eeb1471bebfd50b4630b0266cc7b1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking partial-min-max v0.4.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking disjoint-sets v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling priority-queue v1.0.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking kodama v0.2.3
[INFO] [stderr]     Checking ordered-float v2.0.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]  Documenting algorithms-edu v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/algo/graph/eulerian_path.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.28s
[INFO] running `Command { std: "docker" "inspect" "e311bd1eb0fda8587af684dadf1471a7c8eeb1471bebfd50b4630b0266cc7b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e311bd1eb0fda8587af684dadf1471a7c8eeb1471bebfd50b4630b0266cc7b1a", kill_on_drop: false }`
[INFO] [stdout] e311bd1eb0fda8587af684dadf1471a7c8eeb1471bebfd50b4630b0266cc7b1a