[INFO] fetching crate difftastic 0.28.0...
[INFO] documenting difftastic-0.28.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate difftastic 0.28.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate difftastic 0.28.0 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 difftastic 0.28.0
[INFO] finished tweaking crates.io crate difftastic 0.28.0
[INFO] tweaked toml for crates.io crate difftastic 0.28.0 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate crates.io crate difftastic 0.28.0 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-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 6e162bed990a944210ee1cc5ba366759b00798c40c7ee2c042297d289ffc1062
[INFO] running `Command { std: "docker" "start" "-a" "6e162bed990a944210ee1cc5ba366759b00798c40c7ee2c042297d289ffc1062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e162bed990a944210ee1cc5ba366759b00798c40c7ee2c042297d289ffc1062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e162bed990a944210ee1cc5ba366759b00798c40c7ee2c042297d289ffc1062", kill_on_drop: false }`
[INFO] [stdout] 6e162bed990a944210ee1cc5ba366759b00798c40c7ee2c042297d289ffc1062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] f34b66ccaaa66020e57a13058f1edfc8c523f8fa6204d67bcd97c3d8f7f499e5
[INFO] running `Command { std: "docker" "start" "-a" "f34b66ccaaa66020e57a13058f1edfc8c523f8fa6204d67bcd97c3d8f7f499e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling quote v1.0.13
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking wu-diff v0.1.2
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking owo-colors v3.3.0
[INFO] [stderr]     Checking radix-heap v0.4.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling rayon v1.5.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking archery v0.4.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking rpds v0.10.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.24
[INFO] [stderr]    Compiling tree-sitter v0.20.6
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.22
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking mimalloc v0.1.28
[INFO] [stderr]     Checking const_format v0.2.22
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling difftastic v0.28.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting difftastic v0.28.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.08s
[INFO] running `Command { std: "docker" "inspect" "f34b66ccaaa66020e57a13058f1edfc8c523f8fa6204d67bcd97c3d8f7f499e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34b66ccaaa66020e57a13058f1edfc8c523f8fa6204d67bcd97c3d8f7f499e5", kill_on_drop: false }`
[INFO] [stdout] f34b66ccaaa66020e57a13058f1edfc8c523f8fa6204d67bcd97c3d8f7f499e5