[INFO] fetching crate gauc 0.8.1...
[INFO] documenting gauc-0.8.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate gauc 0.8.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate gauc 0.8.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gauc 0.8.1
[INFO] finished tweaking crates.io crate gauc 0.8.1
[INFO] tweaked toml for crates.io crate gauc 0.8.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buf_redux v0.6.3
[INFO] [stderr]   Downloaded bodyparser v0.5.0
[INFO] [stderr]   Downloaded urlencoded v0.5.0
[INFO] [stderr]   Downloaded iron v0.5.1
[INFO] [stderr]   Downloaded conduit-mime-types v0.7.3
[INFO] [stderr]   Downloaded bodyparser v0.6.0
[INFO] [stderr]   Downloaded persistent v0.3.0
[INFO] [stderr]   Downloaded router v0.5.1
[INFO] [stderr]   Downloaded error v0.1.9
[INFO] [stderr]   Downloaded params v0.7.1
[INFO] [stderr]   Downloaded multipart v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", 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] 7285510bee1025271c91aa08a089a01d9da7faf314e730ee455f2a0e3741f6d8
[INFO] running `Command { std: "docker" "start" "-a" "7285510bee1025271c91aa08a089a01d9da7faf314e730ee455f2a0e3741f6d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7285510bee1025271c91aa08a089a01d9da7faf314e730ee455f2a0e3741f6d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7285510bee1025271c91aa08a089a01d9da7faf314e730ee455f2a0e3741f6d8", kill_on_drop: false }`
[INFO] [stdout] 7285510bee1025271c91aa08a089a01d9da7faf314e730ee455f2a0e3741f6d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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-2020-10-09" "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] bd5b2f2f4d0edb43285d8e414d152c7d79fd7cf572a2267f2b93656876b4a0ad
[INFO] running `Command { std: "docker" "start" "-a" "bd5b2f2f4d0edb43285d8e414d152c7d79fd7cf572a2267f2b93656876b4a0ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking serde v0.9.15
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking httparse v1.3.4
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking memchr v2.3.3
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking num-traits v0.2.12
[INFO] [stderr]     Checking unicase v1.4.2
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking buf_redux v0.6.3
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking persistent v0.3.0
[INFO] [stderr]     Checking router v0.5.1
[INFO] [stderr]     Checking bodyparser v0.5.0
[INFO] [stderr]     Checking bodyparser v0.6.0
[INFO] [stderr]     Checking urlencoded v0.5.0
[INFO] [stderr]     Checking multipart v0.12.0
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking params v0.7.1
[INFO] [stderr]  Documenting gauc v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `gauc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name gauc 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 clap=/opt/rustwide/target/debug/deps/libclap-39e47083f31e9c29.rmeta --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-0122b28f4d895495.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-f0f60ebb2f5232b5.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-243ccdc44645fcdc.rmeta --extern iron=/opt/rustwide/target/debug/deps/libiron-306001f5ea7176e0.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-3e609a7398cb9c99.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-a10a55d33efea5e5.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-2ab33fae6bc17255.rmeta --extern params=/opt/rustwide/target/debug/deps/libparams-a2f60690b79703a1.rmeta --extern router=/opt/rustwide/target/debug/deps/librouter-b2a1db847b9db0e7.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5ae3c490eb1ec41e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-73c0023784337730.rmeta --cap-lints=warn --crate-version 0.8.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "bd5b2f2f4d0edb43285d8e414d152c7d79fd7cf572a2267f2b93656876b4a0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5b2f2f4d0edb43285d8e414d152c7d79fd7cf572a2267f2b93656876b4a0ad", kill_on_drop: false }`
[INFO] [stdout] bd5b2f2f4d0edb43285d8e414d152c7d79fd7cf572a2267f2b93656876b4a0ad
