[INFO] fetching crate keel 0.0.1...
[INFO] documenting keel-0.0.1 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate keel 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate keel 0.0.1 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 keel 0.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate keel 0.0.1
[INFO] tweaked toml for crates.io crate keel 0.0.1 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded k8s-openapi v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 528655b97d1b7b7532251b02214fe230bf9a541a274b511282c8272bc4bfe494
[INFO] running `Command { std: "docker" "start" "-a" "528655b97d1b7b7532251b02214fe230bf9a541a274b511282c8272bc4bfe494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528655b97d1b7b7532251b02214fe230bf9a541a274b511282c8272bc4bfe494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528655b97d1b7b7532251b02214fe230bf9a541a274b511282c8272bc4bfe494", kill_on_drop: false }`
[INFO] [stdout] 528655b97d1b7b7532251b02214fe230bf9a541a274b511282c8272bc4bfe494
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] eed18156644bcdaac0a6fe9e972e545e0f9119334cfbc4885ffe0748103a1871
[INFO] running `Command { std: "docker" "start" "-a" "eed18156644bcdaac0a6fe9e972e545e0f9119334cfbc4885ffe0748103a1871", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling k8s-openapi v0.2.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]  Documenting keel v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[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(uniform_paths)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(custom_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `keel`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name keel src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-28cef1ac9ecfdc42.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-7ca0e15a9e8df505.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-364fb0c860d0792f.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-39821cd9ab0074a0.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-ed2fb1b377e34b93.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-c3ef503c56e5516c.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-377b8e0477809b4e.rmeta --extern hyper_tls=/opt/rustwide/target/debug/deps/libhyper_tls-3b84a63318b557d3.rmeta --extern k8s_openapi=/opt/rustwide/target/debug/deps/libk8s_openapi-051c7b29e862c2a8.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-56a705720bafac8d.rmeta --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-fc968422d91836c6.rmeta --extern openssl=/opt/rustwide/target/debug/deps/libopenssl-4233496c52fc0690.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-6a5809dcce96c926.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-2799fcdcc706ff71.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-adc9c12afbad791e.rmeta --extern serde_urlencoded=/opt/rustwide/target/debug/deps/libserde_urlencoded-9a4db6df1f79def1.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-647ac29294ef7c2c.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-24778f8da8d245ae.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-c809978b29224b03.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-e9f36914da45d354.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "eed18156644bcdaac0a6fe9e972e545e0f9119334cfbc4885ffe0748103a1871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eed18156644bcdaac0a6fe9e972e545e0f9119334cfbc4885ffe0748103a1871", kill_on_drop: false }`
[INFO] [stdout] eed18156644bcdaac0a6fe9e972e545e0f9119334cfbc4885ffe0748103a1871
