[INFO] fetching crate starry-ecs 0.5.0...
[INFO] documenting starry-ecs-0.5.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate starry-ecs 0.5.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate starry-ecs 0.5.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate starry-ecs 0.5.0
[INFO] finished tweaking crates.io crate starry-ecs 0.5.0
[INFO] tweaked toml for crates.io crate starry-ecs 0.5.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee31883a61877ea3825e40ba31d1750d88eaab4a1d3ae91924b56fa3aa737ba3
[INFO] running `Command { std: "docker" "start" "-a" "ee31883a61877ea3825e40ba31d1750d88eaab4a1d3ae91924b56fa3aa737ba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee31883a61877ea3825e40ba31d1750d88eaab4a1d3ae91924b56fa3aa737ba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee31883a61877ea3825e40ba31d1750d88eaab4a1d3ae91924b56fa3aa737ba3", kill_on_drop: false }`
[INFO] [stdout] ee31883a61877ea3825e40ba31d1750d88eaab4a1d3ae91924b56fa3aa737ba3
[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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97a2f6a31b8255b7142c361b81aa288bc7c228d39a8da8e6e79e8d3906dd1e14
[INFO] running `Command { std: "docker" "start" "-a" "97a2f6a31b8255b7142c361b81aa288bc7c228d39a8da8e6e79e8d3906dd1e14", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking dyn-clone v1.0.16
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]  Documenting starry-ecs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(type_name_of_val)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(thread_spawn_unchecked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `starry-ecs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name starry_ecs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d05bea2de5541b9e -L dependency=/opt/rustwide/target/debug/deps --extern dyn_clone=/opt/rustwide/target/debug/deps/libdyn_clone-c6a1a0e308121df1.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-d88da3e34f4b746e.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-030b27e0bc6cc4e7.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-cdbd51313957a31a.rmeta --cap-lints=warn --crate-version 0.5.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "97a2f6a31b8255b7142c361b81aa288bc7c228d39a8da8e6e79e8d3906dd1e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a2f6a31b8255b7142c361b81aa288bc7c228d39a8da8e6e79e8d3906dd1e14", kill_on_drop: false }`
[INFO] [stdout] 97a2f6a31b8255b7142c361b81aa288bc7c228d39a8da8e6e79e8d3906dd1e14
