[INFO] fetching crate esp32-hal 0.2.0...
[INFO] testing esp32-hal-0.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate esp32-hal 0.2.0 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate esp32-hal 0.2.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-34/source/.cargo/config
[INFO] started tweaking crates.io crate esp32-hal 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate esp32-hal 0.2.0
[INFO] tweaked toml for crates.io crate esp32-hal 0.2.0 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate crates.io crate esp32-hal 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1939a2c233f8603272ea5b384af5f9e54a4c7e509a54e46aefda9b8b9ba8cffe
[INFO] running `Command { std: "docker" "start" "-a" "1939a2c233f8603272ea5b384af5f9e54a4c7e509a54e46aefda9b8b9ba8cffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1939a2c233f8603272ea5b384af5f9e54a4c7e509a54e46aefda9b8b9ba8cffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1939a2c233f8603272ea5b384af5f9e54a4c7e509a54e46aefda9b8b9ba8cffe", kill_on_drop: false }`
[INFO] [stdout] 1939a2c233f8603272ea5b384af5f9e54a4c7e509a54e46aefda9b8b9ba8cffe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33a995ee5b84e4f8a625026944c0cc0b40e1cbb7b02a6339f5353e73021fbf51
[INFO] running `Command { std: "docker" "start" "-a" "33a995ee5b84e4f8a625026944c0cc0b40e1cbb7b02a6339f5353e73021fbf51", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling xtensa-lx v0.3.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling r0 v1.0.0
[INFO] [stderr]    Compiling xtensa-lx-rt v0.5.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling esp32 v0.10.0
[INFO] [stderr]    Compiling mutex-trait v0.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling esp32-hal v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.7
[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-0.3.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(llvm_asm)]
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "33a995ee5b84e4f8a625026944c0cc0b40e1cbb7b02a6339f5353e73021fbf51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a995ee5b84e4f8a625026944c0cc0b40e1cbb7b02a6339f5353e73021fbf51", kill_on_drop: false }`
[INFO] [stdout] 33a995ee5b84e4f8a625026944c0cc0b40e1cbb7b02a6339f5353e73021fbf51
