[INFO] fetching crate opt_solver 0.1.1...
[INFO] documenting opt_solver-0.1.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate opt_solver 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate opt_solver 0.1.1 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 opt_solver 0.1.1
[INFO] finished tweaking crates.io crate opt_solver 0.1.1
[INFO] tweaked toml for crates.io crate opt_solver 0.1.1 written to /workspace/builds/worker-4-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros v0.19.2
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.2
[INFO] [stderr]   Downloaded pyo3-ffi v0.19.2
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.19.2
[INFO] [stderr]   Downloaded pyo3 v0.19.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2d7cd851d9041273dc01f4ecf0043831cefbc8eb6c2d8d376795c417d7b57437
[INFO] running `Command { std: "docker" "start" "-a" "2d7cd851d9041273dc01f4ecf0043831cefbc8eb6c2d8d376795c417d7b57437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d7cd851d9041273dc01f4ecf0043831cefbc8eb6c2d8d376795c417d7b57437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7cd851d9041273dc01f4ecf0043831cefbc8eb6c2d8d376795c417d7b57437", kill_on_drop: false }`
[INFO] [stdout] 2d7cd851d9041273dc01f4ecf0043831cefbc8eb6c2d8d376795c417d7b57437
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cd31c76d11c1335f3944339ba14cd945ec5d6e7bc72117f8984b92e2756a47c6
[INFO] running `Command { std: "docker" "start" "-a" "cd31c76d11c1335f3944339ba14cd945ec5d6e7bc72117f8984b92e2756a47c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.13
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling rust_decimal v1.33.1
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling pyo3-build-config v0.19.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]    Compiling pyo3-ffi v0.19.2
[INFO] [stderr]    Compiling pyo3 v0.19.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.19.2
[INFO] [stderr]    Compiling pyo3-macros v0.19.2
[INFO] [stderr]  Documenting opt_solver v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_const_equality)]
[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:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(auto_traits, negative_impls)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `opt_solver`
[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 rlib --crate-type cdylib --crate-type staticlib --crate-name opt_solver src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4518986c3d6d07ea -L dependency=/opt/rustwide/target/debug/deps --extern array_init=/opt/rustwide/target/debug/deps/libarray_init-9855055570b9a002.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-6b6ae841cab92c2e.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-073a53cba2ed9079.rmeta --extern pyo3=/opt/rustwide/target/debug/deps/libpyo3-b543397a070e98b7.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7c14306ccbf0b227.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-030b27e0bc6cc4e7.rmeta --extern rust_decimal=/opt/rustwide/target/debug/deps/librust_decimal-fb5c37f1b0e665dc.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "cd31c76d11c1335f3944339ba14cd945ec5d6e7bc72117f8984b92e2756a47c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd31c76d11c1335f3944339ba14cd945ec5d6e7bc72117f8984b92e2756a47c6", kill_on_drop: false }`
[INFO] [stdout] cd31c76d11c1335f3944339ba14cd945ec5d6e7bc72117f8984b92e2756a47c6
