[INFO] cloning repository https://github.com/drone-os/nrf9160dk-blink
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drone-os/nrf9160dk-blink" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrone-os%2Fnrf9160dk-blink", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrone-os%2Fnrf9160dk-blink'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b770e4332f8d7d6b66d23b1190deff024970917
[INFO] documenting drone-os/nrf9160dk-blink against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrone-os%2Fnrf9160dk-blink" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/drone-os/nrf9160dk-blink 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-4/source/.cargo/config
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/drone-os/nrf9160dk-blink
[INFO] finished tweaking git repo https://github.com/drone-os/nrf9160dk-blink
[INFO] tweaked toml for git repo https://github.com/drone-os/nrf9160dk-blink written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/drone-os/nrf9160dk-blink 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]  Downloading crates ...
[INFO] [stderr]   Downloaded drone-nrf-map-pieces v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-8 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-5 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-1 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-periph-uarte v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-9 v0.14.0
[INFO] [stderr]   Downloaded drone-svd v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-10 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-4 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-11 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-2 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-6 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-12 v0.14.0
[INFO] [stderr]   Downloaded drone-cortexm v0.14.1
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-3 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-svd v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map v0.14.0
[INFO] [stderr]   Downloaded drone-cortexm-macros v0.14.1
[INFO] [stderr]   Downloaded drone-config v0.14.0
[INFO] [stderr]   Downloaded drone-nrf-map-pieces-7 v0.14.0
[INFO] [stderr]   Downloaded drone-nrf91-dso v0.14.0
[INFO] [stderr]   Downloaded drone-macros-core v0.14.2
[INFO] [stderr]   Downloaded drone-ctypes v0.14.2
[INFO] [stderr]   Downloaded drone-core-macros v0.14.2
[INFO] [stderr]   Downloaded drone-core v0.14.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a4c970e7eec69b22d60dcd0c5653060776162b02f6705130c8996cc5c1362cf9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a4c970e7eec69b22d60dcd0c5653060776162b02f6705130c8996cc5c1362cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4c970e7eec69b22d60dcd0c5653060776162b02f6705130c8996cc5c1362cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4c970e7eec69b22d60dcd0c5653060776162b02f6705130c8996cc5c1362cf9", kill_on_drop: false }`
[INFO] [stdout] a4c970e7eec69b22d60dcd0c5653060776162b02f6705130c8996cc5c1362cf9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c114cf4bd1cc9043a199bd37e12e49a6126ada4863ba98fa362559f6ecae6a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c114cf4bd1cc9043a199bd37e12e49a6126ada4863ba98fa362559f6ecae6a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking drone-ctypes v0.14.2
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling drone-macros-core v0.14.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling drone-cortexm-macros v0.14.1
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde-xml-rs v0.4.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling drone-svd v0.14.0
[INFO] [stderr]    Compiling drone-config v0.14.0
[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/drone-svd-0.14.0/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(bool_to_option)]
[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/drone-svd-0.14.0/src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(cell_update)]
[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/drone-svd-0.14.0/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(generator_trait)]
[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/drone-svd-0.14.0/src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(generators)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `drone-svd` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1c114cf4bd1cc9043a199bd37e12e49a6126ada4863ba98fa362559f6ecae6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c114cf4bd1cc9043a199bd37e12e49a6126ada4863ba98fa362559f6ecae6a4", kill_on_drop: false }`
[INFO] [stdout] 1c114cf4bd1cc9043a199bd37e12e49a6126ada4863ba98fa362559f6ecae6a4
