[INFO] cloning repository https://github.com/Implodent/insan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Implodent/insan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImplodent%2Finsan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImplodent%2Finsan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d9c5285f4be9f98023459200aa030106b2b0dca
[INFO] documenting Implodent/insan against 1.76.0 for beta-1.77-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImplodent%2Finsan" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Implodent/insan on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Implodent/insan
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/Implodent/insan
[INFO] tweaked toml for git repo https://github.com/Implodent/insan written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Implodent/insan 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-task v4.5.0
[INFO] [stderr]   Downloaded http v1.0.0
[INFO] [stderr]   Downloaded async-global-executor v2.4.0
[INFO] [stderr]   Downloaded async-tls v0.12.0
[INFO] [stderr]   Downloaded sct v0.7.1
[INFO] [stderr]   Downloaded unicode-bidi v0.3.14
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.18
[INFO] [stderr]   Downloaded web-sys v0.3.66
[INFO] [stderr]   Downloaded async-tungstenite v0.24.0
[INFO] [stderr]   Downloaded ring v0.17.7
[INFO] [stderr]   Downloaded syn v2.0.40
[INFO] [stderr]   Downloaded tungstenite v0.21.0
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.4
[INFO] [stderr]   Downloaded value-bag v1.4.3
[INFO] [stderr]   Downloaded tracing-log v0.2.0
[INFO] [stderr]   Downloaded async-io v2.2.2
[INFO] [stderr]   Downloaded event-listener v4.0.0
[INFO] [stderr]   Downloaded async-lock v3.2.0
[INFO] [stderr]   Downloaded futures-lite v2.1.0
[INFO] [stderr]   Downloaded send_wrapper v0.6.0
[INFO] [stderr]   Downloaded async-channel v1.9.0
[INFO] [stderr]   Downloaded async-dup v1.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 414a82f394dceeefd05e17ecbd2f39b5b8179dd9df26241c9b03c7686d4d94ee
[INFO] running `Command { std: "docker" "start" "-a" "414a82f394dceeefd05e17ecbd2f39b5b8179dd9df26241c9b03c7686d4d94ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "414a82f394dceeefd05e17ecbd2f39b5b8179dd9df26241c9b03c7686d4d94ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "414a82f394dceeefd05e17ecbd2f39b5b8179dd9df26241c9b03c7686d4d94ee", kill_on_drop: false }`
[INFO] [stdout] 414a82f394dceeefd05e17ecbd2f39b5b8179dd9df26241c9b03c7686d4d94ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11f5677f9d417739510f994932511af81e373a2e18505bfa55c4bd7dac770cbb
[INFO] running `Command { std: "docker" "start" "-a" "11f5677f9d417739510f994932511af81e373a2e18505bfa55c4bd7dac770cbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling syn v2.0.40
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking futures-util v0.3.29
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]  Documenting acril v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_type_bounds, return_type_notation)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `acril`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name acril src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ec53401ba53f392d -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-c8d99f554b68b9bd.rmeta --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-c689329ca0e89e0f.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-1f78cb9c69ba137d.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "11f5677f9d417739510f994932511af81e373a2e18505bfa55c4bd7dac770cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11f5677f9d417739510f994932511af81e373a2e18505bfa55c4bd7dac770cbb", kill_on_drop: false }`
[INFO] [stdout] 11f5677f9d417739510f994932511af81e373a2e18505bfa55c4bd7dac770cbb
