[INFO] cloning repository https://github.com/lizhiyong2000/CloudIVS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lizhiyong2000/CloudIVS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhiyong2000%2FCloudIVS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhiyong2000%2FCloudIVS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46e083865513ea64e51f4019c435e0f7502c85ba
[INFO] documenting lizhiyong2000/CloudIVS against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhiyong2000%2FCloudIVS" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lizhiyong2000/CloudIVS 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 git repo https://github.com/lizhiyong2000/CloudIVS
[INFO] removed workspace from git repo https://github.com/lizhiyong2000/CloudIVS
[INFO] finished tweaking git repo https://github.com/lizhiyong2000/CloudIVS
[INFO] tweaked toml for git repo https://github.com/lizhiyong2000/CloudIVS written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/lizhiyong2000/CloudIVS already has a lockfile, it will not be regenerated
[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]     Updating git repository `https://github.com/sgodwincs/uriparse-rs.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trackable v0.1.8
[INFO] [stderr]   Downloaded parallel-event-emitter v0.2.4
[INFO] [stderr]   Downloaded trace-error v0.1.5
[INFO] [stderr]   Downloaded bswap v1.0.0
[INFO] [stderr]   Downloaded sha v1.0.3
[INFO] [stderr]   Downloaded bytecodec v0.4.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] b441dfe43df398cb808ea490fa716b81c313ef83848f773ebdc9030179306f65
[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" "b441dfe43df398cb808ea490fa716b81c313ef83848f773ebdc9030179306f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b441dfe43df398cb808ea490fa716b81c313ef83848f773ebdc9030179306f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b441dfe43df398cb808ea490fa716b81c313ef83848f773ebdc9030179306f65", kill_on_drop: false }`
[INFO] [stdout] b441dfe43df398cb808ea490fa716b81c313ef83848f773ebdc9030179306f65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] db5b1ee1c0ca863a7fff8d43811aee9f73e42dcbb09a552a6588325b648e82d6
[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" "db5b1ee1c0ca863a7fff8d43811aee9f73e42dcbb09a552a6588325b648e82d6", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking bswap v1.0.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking uriparse v0.6.1 (https://github.com/sgodwincs/uriparse-rs.git#3fa71456)
[INFO] [stderr]    Compiling nom v6.0.0-alpha1
[INFO] [stderr]     Checking linked_hash_set v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking hashbrown v0.7.2
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking dlv-list v0.2.2
[INFO] [stderr]    Compiling cloudmedia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking sha v1.0.3
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking trace-error v0.1.5
[INFO] [stderr]     Checking ordered-multimap v0.2.4
[INFO] [stderr]     Checking parallel-event-emitter v0.2.4
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking trackable v0.1.8
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking bytecodec v0.4.13
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting cloudmedia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(int_error_matching)]
[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 `cloudmedia`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cloudmedia 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 base64=/opt/rustwide/target/debug/deps/libbase64-90ca30a173465873.rmeta --extern bytecodec=/opt/rustwide/target/debug/deps/libbytecodec-2a8f12650ee7445f.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-364c148656283980.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-643cc0af36af213a.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-6539196f36d0cc21.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-0ff73feb7e2c43f7.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-eaee7c60cc7fd0ef.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-915afbb154a8b0b0.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-db88f49d9e5662e7.rmeta --extern linked_hash_set=/opt/rustwide/target/debug/deps/liblinked_hash_set-10b61d0ab7eb5368.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-69d9a7f018cb28c7.rmeta --extern md5=/opt/rustwide/target/debug/deps/libmd5-98664581f92067a0.rmeta --extern mime=/opt/rustwide/target/debug/deps/libmime-7689baeaba7a1e96.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-72ae23e96b5d0809.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-1526c68eb32dfc7e.rmeta --extern ordered_multimap=/opt/rustwide/target/debug/deps/libordered_multimap-2f1533f62f8d7d9f.rmeta --extern parallel_event_emitter=/opt/rustwide/target/debug/deps/libparallel_event_emitter-cc9d29312c81f1d4.rmeta --extern pnet_macros_support=/opt/rustwide/target/debug/deps/libpnet_macros_support-f539ad250da390b4.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c38880f5f03aa648.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-c251ca4f1be2ef5d.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-2c5d0350d1661980.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0b4410d30d7e5d1e.rmeta --extern sha=/opt/rustwide/target/debug/deps/libsha-d62d270a818e124b.rmeta --extern splay_tree=/opt/rustwide/target/debug/deps/libsplay_tree-92cedd2f7dcbfa81.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-51855c512ca7ea76.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-f92d411233b72bbf.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-4da1cf53d8c289be.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-9af96274740bd13b.rmeta --extern tower_service=/opt/rustwide/target/debug/deps/libtower_service-f0af52d3eeda61e7.rmeta --extern trackable=/opt/rustwide/target/debug/deps/libtrackable-c1b7c276354e2b6d.rmeta --extern uriparse=/opt/rustwide/target/debug/deps/liburiparse-34d6d305b1a4395d.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-ce802e45ec40a9b5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "db5b1ee1c0ca863a7fff8d43811aee9f73e42dcbb09a552a6588325b648e82d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db5b1ee1c0ca863a7fff8d43811aee9f73e42dcbb09a552a6588325b648e82d6", kill_on_drop: false }`
[INFO] [stdout] db5b1ee1c0ca863a7fff8d43811aee9f73e42dcbb09a552a6588325b648e82d6