[INFO] fetching crate esp32s2 0.2.0...
[INFO] documenting esp32s2-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate esp32s2 0.2.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate esp32s2 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 esp32s2 0.2.0
[INFO] finished tweaking crates.io crate esp32s2 0.2.0
[INFO] tweaked toml for crates.io crate esp32s2 0.2.0 written to /workspace/builds/worker-75/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-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] ca0b9d01019ac145fc0275478fa9d202ae3e2d5ddac3e5828fbd99f8786fbbad
[INFO] running `Command { std: "docker" "start" "-a" "ca0b9d01019ac145fc0275478fa9d202ae3e2d5ddac3e5828fbd99f8786fbbad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca0b9d01019ac145fc0275478fa9d202ae3e2d5ddac3e5828fbd99f8786fbbad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca0b9d01019ac145fc0275478fa9d202ae3e2d5ddac3e5828fbd99f8786fbbad", kill_on_drop: false }`
[INFO] [stdout] ca0b9d01019ac145fc0275478fa9d202ae3e2d5ddac3e5828fbd99f8786fbbad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] ae6d4f7adf1247c616fce2ce4373ae6c3a34b35d31025d665c4cb172cb674270
[INFO] running `Command { std: "docker" "start" "-a" "ae6d4f7adf1247c616fce2ce4373ae6c3a34b35d31025d665c4cb172cb674270", kill_on_drop: false }`
[INFO] [stderr]    Compiling xtensa-lx v0.7.0
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]    Compiling esp32s2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mutex-trait v0.2.0
[INFO] [stderr]     Checking vcell v0.1.3
[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/xtensa-lx-0.7.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm_experimental_arch)]
[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 `xtensa-lx` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ae6d4f7adf1247c616fce2ce4373ae6c3a34b35d31025d665c4cb172cb674270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae6d4f7adf1247c616fce2ce4373ae6c3a34b35d31025d665c4cb172cb674270", kill_on_drop: false }`
[INFO] [stdout] ae6d4f7adf1247c616fce2ce4373ae6c3a34b35d31025d665c4cb172cb674270