[INFO] fetching crate coap-handler-implementations 0.3.3...
[INFO] documenting coap-handler-implementations-0.3.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate coap-handler-implementations 0.3.3 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate coap-handler-implementations 0.3.3 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 crates.io crate coap-handler-implementations 0.3.3
[INFO] finished tweaking crates.io crate coap-handler-implementations 0.3.3
[INFO] tweaked toml for crates.io crate coap-handler-implementations 0.3.3 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded ciborium-io v0.2.0
[INFO] [stderr]   Downloaded minicbor v0.15.0
[INFO] [stderr]   Downloaded coap-handler v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 6607187505eb10cd54cc3c3bfa4127f60c0625f0274e68703c9d56f7d77f7db9
[INFO] running `Command { std: "docker" "start" "-a" "6607187505eb10cd54cc3c3bfa4127f60c0625f0274e68703c9d56f7d77f7db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6607187505eb10cd54cc3c3bfa4127f60c0625f0274e68703c9d56f7d77f7db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6607187505eb10cd54cc3c3bfa4127f60c0625f0274e68703c9d56f7d77f7db9", kill_on_drop: false }`
[INFO] [stdout] 6607187505eb10cd54cc3c3bfa4127f60c0625f0274e68703c9d56f7d77f7db9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 2c435ceb7de4c0d6e6e29d2484511232b758c87bcbb33def4a35b1eb5819143d
[INFO] running `Command { std: "docker" "start" "-a" "2c435ceb7de4c0d6e6e29d2484511232b758c87bcbb33def4a35b1eb5819143d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking coap-message v0.2.2
[INFO] [stderr]     Checking coap-numbers v0.1.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr] error: could not compile `coap-message` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/coap-message-0.2.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_associated_types)]
[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] running `Command { std: "docker" "inspect" "2c435ceb7de4c0d6e6e29d2484511232b758c87bcbb33def4a35b1eb5819143d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c435ceb7de4c0d6e6e29d2484511232b758c87bcbb33def4a35b1eb5819143d", kill_on_drop: false }`
[INFO] [stdout] 2c435ceb7de4c0d6e6e29d2484511232b758c87bcbb33def4a35b1eb5819143d