[INFO] cloning repository https://github.com/bjoernQ/esp32-preempt-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bjoernQ/esp32-preempt-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbjoernQ%2Fesp32-preempt-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbjoernQ%2Fesp32-preempt-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78501ef733eddd573d3862dd6558e5d28bff1726
[INFO] documenting bjoernQ/esp32-preempt-experiment against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbjoernQ%2Fesp32-preempt-experiment" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bjoernQ/esp32-preempt-experiment on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bjoernQ/esp32-preempt-experiment
[INFO] finished tweaking git repo https://github.com/bjoernQ/esp32-preempt-experiment
[INFO] tweaked toml for git repo https://github.com/bjoernQ/esp32-preempt-experiment written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/bjoernQ/esp32-preempt-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xtensa-lx v0.6.0
[INFO] [stderr]   Downloaded xtensa-lx-rt v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1271fa0bf3eb3f7b7ad77c43db0fc8afd967adddde3a8811c61aee07f0870d3a
[INFO] running `Command { std: "docker" "start" "-a" "1271fa0bf3eb3f7b7ad77c43db0fc8afd967adddde3a8811c61aee07f0870d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1271fa0bf3eb3f7b7ad77c43db0fc8afd967adddde3a8811c61aee07f0870d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1271fa0bf3eb3f7b7ad77c43db0fc8afd967adddde3a8811c61aee07f0870d3a", kill_on_drop: false }`
[INFO] [stdout] 1271fa0bf3eb3f7b7ad77c43db0fc8afd967adddde3a8811c61aee07f0870d3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd8b0ed3eb98236c578452700b60af3ee206629d2c81cf1e7de5261080724ac5
[INFO] running `Command { std: "docker" "start" "-a" "fd8b0ed3eb98236c578452700b60af3ee206629d2c81cf1e7de5261080724ac5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling xtensa-lx v0.6.0
[INFO] [stderr]    Compiling strum v0.24.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]    Compiling esp32 v0.11.0 (https://github.com/esp-rs/esp-pacs.git?branch=with_source#3b6301bf)
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking mutex-trait v0.2.0
[INFO] [stderr]    Compiling esp-hal-common v0.1.0 (https://github.com/esp-rs/esp-hal#13ae45b4)
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling esp32-hal v0.1.0 (https://github.com/esp-rs/esp-hal#13ae45b4)
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xtensa-lx-0.6.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xtensa-lx-0.6.0/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(asm_experimental_arch)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xtensa-lx-0.6.0/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `xtensa-lx` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fd8b0ed3eb98236c578452700b60af3ee206629d2c81cf1e7de5261080724ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd8b0ed3eb98236c578452700b60af3ee206629d2c81cf1e7de5261080724ac5", kill_on_drop: false }`
[INFO] [stdout] fd8b0ed3eb98236c578452700b60af3ee206629d2c81cf1e7de5261080724ac5