[INFO] cloning repository https://github.com/IndigoLily/mandelbrot.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IndigoLily/mandelbrot.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndigoLily%2Fmandelbrot.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndigoLily%2Fmandelbrot.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 877172e817daf0c3ce3b0c9a35443ab5261f1809
[INFO] documenting IndigoLily/mandelbrot.rs against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndigoLily%2Fmandelbrot.rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IndigoLily/mandelbrot.rs on toolchain ef324565d071c6d7e2477a195648549e33d6a465
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IndigoLily/mandelbrot.rs
[INFO] finished tweaking git repo https://github.com/IndigoLily/mandelbrot.rs
[INFO] tweaked toml for git repo https://github.com/IndigoLily/mandelbrot.rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/IndigoLily/mandelbrot.rs 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" "+ef324565d071c6d7e2477a195648549e33d6a465" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] documenting IndigoLily/mandelbrot.rs against try#223112bf1ca31911a6475910c77b36bfa127d5f8 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndigoLily%2Fmandelbrot.rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IndigoLily/mandelbrot.rs on toolchain 223112bf1ca31911a6475910c77b36bfa127d5f8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IndigoLily/mandelbrot.rs
[INFO] finished tweaking git repo https://github.com/IndigoLily/mandelbrot.rs
[INFO] tweaked toml for git repo https://github.com/IndigoLily/mandelbrot.rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/IndigoLily/mandelbrot.rs 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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf v0.9.0
[INFO] [stderr]   Downloaded palette_derive v0.6.0
[INFO] [stderr]   Downloaded phf_macros v0.9.0
[INFO] [stderr]   Downloaded phf_generator v0.9.1
[INFO] [stderr]   Downloaded phf_shared v0.9.0
[INFO] [stderr]   Downloaded palette v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53cebe04d0d6f35df8608dc78ba832f1453eecb1cceac7c4e5487a7331e7cc8f
[INFO] running `Command { std: "docker" "start" "-a" "53cebe04d0d6f35df8608dc78ba832f1453eecb1cceac7c4e5487a7331e7cc8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53cebe04d0d6f35df8608dc78ba832f1453eecb1cceac7c4e5487a7331e7cc8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53cebe04d0d6f35df8608dc78ba832f1453eecb1cceac7c4e5487a7331e7cc8f", kill_on_drop: false }`
[INFO] [stdout] 53cebe04d0d6f35df8608dc78ba832f1453eecb1cceac7c4e5487a7331e7cc8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93244d1ac6ad15a6a3a24f2f2bae0953a16bbbed3b2cb64f3df2d50360d99124
[INFO] running `Command { std: "docker" "start" "-a" "93244d1ac6ad15a6a3a24f2f2bae0953a16bbbed3b2cb64f3df2d50360d99124", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling siphasher v0.3.9
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.9.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling palette v0.6.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling phf_generator v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crossbeam-queue v0.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking deflate v0.9.1
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking atomic-counter v1.0.1
[INFO] [stderr]     Checking png v0.17.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling phf_macros v0.9.0
[INFO] [stderr]    Compiling clap_derive v3.0.14
[INFO] [stderr]     Checking phf v0.9.0
[INFO] [stderr]     Checking clap v3.0.14
[INFO] [stderr]     Checking ron v0.6.6
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling find-crate v0.6.3
[INFO] [stderr]    Compiling palette_derive v0.6.0
[INFO] [stderr]     Checking librot-rs v0.1.0 (/opt/rustwide/workdir/librot-rs)
[INFO] [stderr]  Documenting librot-rs v0.1.0 (/opt/rustwide/workdir/librot-rs)
[INFO] [stdout] warning: unused imports: `AddAssign`, `Add`, `DivAssign`, `Div`
[INFO] [stdout]  --> librot-rs/src/colour.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{Add, AddAssign, Div, DivAssign, Index};
[INFO] [stdout]   |                ^^^  ^^^^^^^^^  ^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Srgb` is imported redundantly
[INFO] [stdout]    --> librot-rs/src/colour.rs:152:13
[INFO] [stdout]     |
[INFO] [stdout] 12  | pub use palette::{Pixel, Srgb, rgb::RgbStandard, encoding};
[INFO] [stdout]     |                          ---- the item `Srgb` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 152 |         use palette::rgb::Srgb;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stderr]  Documenting brot-rs v0.1.0 (/opt/rustwide/workdir/brot-rs)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.2.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/brot_rs/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/librot_rs/index.html
[INFO] running `Command { std: "docker" "inspect" "93244d1ac6ad15a6a3a24f2f2bae0953a16bbbed3b2cb64f3df2d50360d99124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93244d1ac6ad15a6a3a24f2f2bae0953a16bbbed3b2cb64f3df2d50360d99124", kill_on_drop: false }`
[INFO] [stdout] 93244d1ac6ad15a6a3a24f2f2bae0953a16bbbed3b2cb64f3df2d50360d99124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "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] b1d68d04cc6830a9b1efa6544ce6ff0efe47210dc773402e0db8d1236833eb4a
[INFO] running `Command { std: "docker" "start" "-a" "b1d68d04cc6830a9b1efa6544ce6ff0efe47210dc773402e0db8d1236833eb4a", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "b1d68d04cc6830a9b1efa6544ce6ff0efe47210dc773402e0db8d1236833eb4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1d68d04cc6830a9b1efa6544ce6ff0efe47210dc773402e0db8d1236833eb4a", kill_on_drop: false }`
[INFO] [stdout] b1d68d04cc6830a9b1efa6544ce6ff0efe47210dc773402e0db8d1236833eb4a