[INFO] fetching crate unbounded-spsc 0.1.8...
[INFO] documenting unbounded-spsc-0.1.8 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate unbounded-spsc 0.1.8 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate unbounded-spsc 0.1.8 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unbounded-spsc 0.1.8
[INFO] finished tweaking crates.io crate unbounded-spsc 0.1.8
[INFO] tweaked toml for crates.io crate unbounded-spsc 0.1.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate unbounded-spsc 0.1.8 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bounded-spsc-queue v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f417ff55d92d2f1bc28bd24ce6d207ec62912aeaa94b65a9f8de4ba3239b946
[INFO] running `Command { std: "docker" "start" "-a" "2f417ff55d92d2f1bc28bd24ce6d207ec62912aeaa94b65a9f8de4ba3239b946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f417ff55d92d2f1bc28bd24ce6d207ec62912aeaa94b65a9f8de4ba3239b946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f417ff55d92d2f1bc28bd24ce6d207ec62912aeaa94b65a9f8de4ba3239b946", kill_on_drop: false }`
[INFO] [stdout] 2f417ff55d92d2f1bc28bd24ce6d207ec62912aeaa94b65a9f8de4ba3239b946
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 894171d2fd60e86c59fc47455799202ad2fea2b1e30f7b31b37321396985c88e
[INFO] running `Command { std: "docker" "start" "-a" "894171d2fd60e86c59fc47455799202ad2fea2b1e30f7b31b37321396985c88e", kill_on_drop: false }`
[INFO] [stderr]     Checking bounded-spsc-queue v0.4.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bounded-spsc-queue-0.4.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[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 compile `bounded-spsc-queue` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "894171d2fd60e86c59fc47455799202ad2fea2b1e30f7b31b37321396985c88e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "894171d2fd60e86c59fc47455799202ad2fea2b1e30f7b31b37321396985c88e", kill_on_drop: false }`
[INFO] [stdout] 894171d2fd60e86c59fc47455799202ad2fea2b1e30f7b31b37321396985c88e
