[INFO] fetching crate automatic-relations 0.2.1...
[INFO] documenting automatic-relations-0.2.1 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate automatic-relations 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate automatic-relations 0.2.1 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 automatic-relations 0.2.1
[INFO] finished tweaking crates.io crate automatic-relations 0.2.1
[INFO] tweaked toml for crates.io crate automatic-relations 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate automatic-relations 0.2.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] [stderr]   Downloaded immutable-map v0.1.2
[INFO] [stderr]   Downloaded getrandom v0.1.14
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.3
[INFO] [stderr]   Downloaded terms v0.1.3
[INFO] [stderr]   Downloaded union-find v0.3.2
[INFO] [stderr]   Downloaded tree-automata v0.1.2
[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] 5831cf457bb3ba1761b292de329144bdd3e805027db95a4299a537e3f06f9a67
[INFO] running `Command { std: "docker" "start" "-a" "5831cf457bb3ba1761b292de329144bdd3e805027db95a4299a537e3f06f9a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5831cf457bb3ba1761b292de329144bdd3e805027db95a4299a537e3f06f9a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5831cf457bb3ba1761b292de329144bdd3e805027db95a4299a537e3f06f9a67", kill_on_drop: false }`
[INFO] [stdout] 5831cf457bb3ba1761b292de329144bdd3e805027db95a4299a537e3f06f9a67
[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] 05bd4ea6c67b14d95fb7c1a8e4c710dba8e607270af0aafbb90068306a43cc73
[INFO] running `Command { std: "docker" "start" "-a" "05bd4ea6c67b14d95fb7c1a8e4c710dba8e607270af0aafbb90068306a43cc73", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking immutable-map v0.1.2
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking union-find v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking terms v0.1.3
[INFO] [stderr]     Checking tree-automata v0.1.2
[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/tree-automata-0.1.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias)]
[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 `tree-automata` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "05bd4ea6c67b14d95fb7c1a8e4c710dba8e607270af0aafbb90068306a43cc73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05bd4ea6c67b14d95fb7c1a8e4c710dba8e607270af0aafbb90068306a43cc73", kill_on_drop: false }`
[INFO] [stdout] 05bd4ea6c67b14d95fb7c1a8e4c710dba8e607270af0aafbb90068306a43cc73
