[INFO] fetching crate thin 0.2.0...
[INFO] documenting thin-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate thin 0.2.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate thin 0.2.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thin 0.2.0
[INFO] finished tweaking crates.io crate thin 0.2.0
[INFO] tweaked toml for crates.io crate thin 0.2.0 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20616f77582d6f0776ce0d32f3e7636d629e6fbd3d2c47198636e060ccc6b6e5
[INFO] running `Command { std: "docker" "start" "-a" "20616f77582d6f0776ce0d32f3e7636d629e6fbd3d2c47198636e060ccc6b6e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20616f77582d6f0776ce0d32f3e7636d629e6fbd3d2c47198636e060ccc6b6e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20616f77582d6f0776ce0d32f3e7636d629e6fbd3d2c47198636e060ccc6b6e5", kill_on_drop: false }`
[INFO] [stdout] 20616f77582d6f0776ce0d32f3e7636d629e6fbd3d2c47198636e060ccc6b6e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1155a33d6f3079127ae2106b2064d51543db67e00e2252a8da03db4f0551d70
[INFO] running `Command { std: "docker" "start" "-a" "b1155a33d6f3079127ae2106b2064d51543db67e00e2252a8da03db4f0551d70", kill_on_drop: false }`
[INFO] [stderr]     Checking fn_move v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/fn_move-0.1.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(fn_traits, unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/fn_move-0.1.0/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(fn_traits, unboxed_closures)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 compile `fn_move` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "b1155a33d6f3079127ae2106b2064d51543db67e00e2252a8da03db4f0551d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1155a33d6f3079127ae2106b2064d51543db67e00e2252a8da03db4f0551d70", kill_on_drop: false }`
[INFO] [stdout] b1155a33d6f3079127ae2106b2064d51543db67e00e2252a8da03db4f0551d70