[INFO] fetching crate astral-cli 0.3.2...
[INFO] documenting astral-cli-0.3.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate astral-cli 0.3.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate astral-cli 0.3.2 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate astral-cli 0.3.2
[INFO] finished tweaking crates.io crate astral-cli 0.3.2
[INFO] tweaked toml for crates.io crate astral-cli 0.3.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sct v0.3.0
[INFO] [stderr]   Downloaded assert_approx_eq v1.1.0
[INFO] [stderr]   Downloaded cabot v0.1.4
[INFO] [stderr]   Downloaded astro v2.0.0
[INFO] [stderr]   Downloaded rustls v0.12.0
[INFO] [stderr]   Downloaded webpki-roots v0.14.0
[INFO] [stderr]   Downloaded astral v0.3.1
[INFO] [stderr]   Downloaded geocode v0.1.1
[INFO] [stderr]   Downloaded vsop87 v2.0.3
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d693739c3bc6c8975ee28ef9fe774d9f1fca58939340dca31a8a38267e1f318
[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" "4d693739c3bc6c8975ee28ef9fe774d9f1fca58939340dca31a8a38267e1f318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d693739c3bc6c8975ee28ef9fe774d9f1fca58939340dca31a8a38267e1f318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d693739c3bc6c8975ee28ef9fe774d9f1fca58939340dca31a8a38267e1f318", kill_on_drop: false }`
[INFO] [stdout] 4d693739c3bc6c8975ee28ef9fe774d9f1fca58939340dca31a8a38267e1f318
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad2e533da0b4c8217c28d483f49fca98ab282af95067be4907189c65a1178f3a
[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" "ad2e533da0b4c8217c28d483f49fca98ab282af95067be4907189c65a1178f3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking astro v2.0.0
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking vsop87 v2.0.3
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking prettytable-rs v0.6.7
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking pretty_env_logger v0.1.1
[INFO] [stderr]     Checking webpki v0.18.1
[INFO] [stderr]     Checking sct v0.3.0
[INFO] [stderr]     Checking rustls v0.12.0
[INFO] [stderr]     Checking webpki-roots v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking cabot v0.1.4
[INFO] [stderr]     Checking astral v0.3.1
[INFO] [stderr]     Checking geocode v0.1.1
[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/astral-0.3.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(use_extern_macros)]
[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 `astral`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ad2e533da0b4c8217c28d483f49fca98ab282af95067be4907189c65a1178f3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2e533da0b4c8217c28d483f49fca98ab282af95067be4907189c65a1178f3a", kill_on_drop: false }`
[INFO] [stdout] ad2e533da0b4c8217c28d483f49fca98ab282af95067be4907189c65a1178f3a