[INFO] fetching crate bitman 2.0.1...
[INFO] documenting bitman-2.0.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate bitman 2.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate bitman 2.0.1 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 bitman 2.0.1
[INFO] finished tweaking crates.io crate bitman 2.0.1
[INFO] tweaked toml for crates.io crate bitman 2.0.1 written to /workspace/builds/worker-7-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 maybe-owned v0.3.4
[INFO] [stderr]   Downloaded rgb v0.8.37
[INFO] [stderr]   Downloaded bstr v1.9.0
[INFO] [stderr]   Downloaded object v0.30.4
[INFO] [stderr]   Downloaded normpath v1.1.1
[INFO] [stderr]   Downloaded inplace-vec-builder v0.1.1
[INFO] [stderr]   Downloaded cab v0.4.1
[INFO] [stderr]   Downloaded flamegraph v0.6.4
[INFO] [stderr]   Downloaded pdb v0.8.0
[INFO] [stderr]   Downloaded inferno v0.11.19
[INFO] [stderr]   Downloaded str_stack v0.1.0
[INFO] [stderr]   Downloaded symsrv v0.2.0
[INFO] [stderr]   Downloaded elsa v1.10.0
[INFO] [stderr]   Downloaded async-compression v0.4.5
[INFO] [stderr]   Downloaded range-collections v0.2.4
[INFO] [stderr]   Downloaded cargo_metadata v0.18.1
[INFO] [stderr]   Downloaded binary-merge v0.1.2
[INFO] [stderr]   Downloaded opener v0.6.1
[INFO] [stderr]   Downloaded pdb-addr2line v0.10.4
[INFO] [stderr]   Downloaded scroll v0.11.0
[INFO] [stderr]   Downloaded libc-print v0.1.22
[INFO] [stderr]   Downloaded quick-xml v0.26.0
[INFO] [stderr]   Downloaded clap_complete v4.4.6
[INFO] [stderr]   Downloaded lzxd v0.1.4
[INFO] [stderr]   Downloaded blondie v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ea19b5d368d01f4b44fdcd9f4f46ded34ab956f2ab0cfcdcfe7259ea12598474
[INFO] running `Command { std: "docker" "start" "-a" "ea19b5d368d01f4b44fdcd9f4f46ded34ab956f2ab0cfcdcfe7259ea12598474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea19b5d368d01f4b44fdcd9f4f46ded34ab956f2ab0cfcdcfe7259ea12598474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea19b5d368d01f4b44fdcd9f4f46ded34ab956f2ab0cfcdcfe7259ea12598474", kill_on_drop: false }`
[INFO] [stdout] ea19b5d368d01f4b44fdcd9f4f46ded34ab956f2ab0cfcdcfe7259ea12598474
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 17555b5bba0bce866336aa41141ed1cc27d93120e2d9e74019838a00fd321899
[INFO] running `Command { std: "docker" "start" "-a" "17555b5bba0bce866336aa41141ed1cc27d93120e2d9e74019838a00fd321899", kill_on_drop: false }`
[INFO] [stderr]     Checking libc-print v0.1.22
[INFO] [stderr]  Documenting bitman v2.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `bitman`
[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 bitman src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e896dd9e5212a39d -L dependency=/opt/rustwide/target/debug/deps --extern libc_print=/opt/rustwide/target/debug/deps/liblibc_print-61e131b7f8144fc7.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-8c2cab534c36cbcf.rmeta --cap-lints=warn --crate-version 2.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "17555b5bba0bce866336aa41141ed1cc27d93120e2d9e74019838a00fd321899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17555b5bba0bce866336aa41141ed1cc27d93120e2d9e74019838a00fd321899", kill_on_drop: false }`
[INFO] [stdout] 17555b5bba0bce866336aa41141ed1cc27d93120e2d9e74019838a00fd321899
