[INFO] fetching crate drone-cortex-m-svd 0.7.0...
[INFO] documenting drone-cortex-m-svd-0.7.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate drone-cortex-m-svd 0.7.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate drone-cortex-m-svd 0.7.0 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] started tweaking crates.io crate drone-cortex-m-svd 0.7.0
[INFO] finished tweaking crates.io crate drone-cortex-m-svd 0.7.0
[INFO] tweaked toml for crates.io crate drone-cortex-m-svd 0.7.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d35af2f03eec15d976715119758a32de15b3342ccf80a933dcc06e10a5add1de
[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" "d35af2f03eec15d976715119758a32de15b3342ccf80a933dcc06e10a5add1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d35af2f03eec15d976715119758a32de15b3342ccf80a933dcc06e10a5add1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d35af2f03eec15d976715119758a32de15b3342ccf80a933dcc06e10a5add1de", kill_on_drop: false }`
[INFO] [stdout] d35af2f03eec15d976715119758a32de15b3342ccf80a933dcc06e10a5add1de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e3a94dffcd811b9fdb02a906e711fd5d9ad0b3ce02233e527e0f31f988dfc54a
[INFO] running `Command { std: "docker" "start" "-a" "e3a94dffcd811b9fdb02a906e711fd5d9ad0b3ce02233e527e0f31f988dfc54a", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]     Checking xml-rs v0.3.6
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking serde-xml-rs v0.2.1
[INFO] [stderr]  Documenting drone-cortex-m-svd v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(range_contains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 document `drone-cortex-m-svd`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name drone_cortex_m_svd src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern failure=/opt/rustwide/target/debug/deps/libfailure-537f9e48e8e2277a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2e3ebae6241efc0d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-6a5809dcce96c926.rmeta --extern serde_xml_rs=/opt/rustwide/target/debug/deps/libserde_xml_rs-c551e2c167dc70fe.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-2799fcdcc706ff71.so --extern syn=/opt/rustwide/target/debug/deps/libsyn-cf69bfbd91d7d14f.rmeta --cap-lints=warn --crate-version 0.7.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e3a94dffcd811b9fdb02a906e711fd5d9ad0b3ce02233e527e0f31f988dfc54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a94dffcd811b9fdb02a906e711fd5d9ad0b3ce02233e527e0f31f988dfc54a", kill_on_drop: false }`
[INFO] [stdout] e3a94dffcd811b9fdb02a906e711fd5d9ad0b3ce02233e527e0f31f988dfc54a
