[INFO] fetching crate libcgroups 0.3.0...
[INFO] documenting libcgroups-0.3.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate libcgroups 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate libcgroups 0.3.0 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 crates.io crate libcgroups 0.3.0
[INFO] finished tweaking crates.io crate libcgroups 0.3.0
[INFO] tweaked toml for crates.io crate libcgroups 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate libcgroups 0.3.0 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 derive_builder_macro v0.12.0
[INFO] [stderr]   Downloaded ascii v0.7.1
[INFO] [stderr]   Downloaded derive_builder v0.12.0
[INFO] [stderr]   Downloaded combine v2.5.2
[INFO] [stderr]   Downloaded oci-spec v0.6.3
[INFO] [stderr]   Downloaded rbpf v0.2.0
[INFO] [stderr]   Downloaded regex v1.10.0
[INFO] [stderr]   Downloaded regex-automata v0.4.1
[INFO] [stderr]   Downloaded rustix v0.36.16
[INFO] [stderr]   Downloaded libbpf-sys v1.2.1+v1.2.0
[INFO] [stderr]   Downloaded regex-syntax v0.8.0
[INFO] [stderr]   Downloaded procfs v0.15.1
[INFO] [stderr]   Downloaded derive_builder_core v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] fc8df331ddaa0c0b63354db58c59deca6f6c0d2edfe38882fe59c214bb08e032
[INFO] running `Command { std: "docker" "start" "-a" "fc8df331ddaa0c0b63354db58c59deca6f6c0d2edfe38882fe59c214bb08e032", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc8df331ddaa0c0b63354db58c59deca6f6c0d2edfe38882fe59c214bb08e032", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8df331ddaa0c0b63354db58c59deca6f6c0d2edfe38882fe59c214bb08e032", kill_on_drop: false }`
[INFO] [stdout] fc8df331ddaa0c0b63354db58c59deca6f6c0d2edfe38882fe59c214bb08e032
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ae92249c5ee5d9e6122cbc52f732680a0d1b2108321e0a5d09d3b2787e2ce492
[INFO] running `Command { std: "docker" "start" "-a" "ae92249c5ee5d9e6122cbc52f732680a0d1b2108321e0a5d09d3b2787e2ce492", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling rustix v0.36.16
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]    Compiling procfs v0.15.1
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling derive_builder_core v0.12.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking thiserror v1.0.49
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/thiserror-1.0.49/src/lib.rs:238:50
[INFO] [stdout]     |
[INFO] [stdout] 238 | #![cfg_attr(error_generic_member_access, feature(error_generic_member_access))]
[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 compile `thiserror` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ae92249c5ee5d9e6122cbc52f732680a0d1b2108321e0a5d09d3b2787e2ce492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae92249c5ee5d9e6122cbc52f732680a0d1b2108321e0a5d09d3b2787e2ce492", kill_on_drop: false }`
[INFO] [stdout] ae92249c5ee5d9e6122cbc52f732680a0d1b2108321e0a5d09d3b2787e2ce492
