[INFO] cloning repository https://github.com/uselessgoddess/rust-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uselessgoddess/rust-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuselessgoddess%2Frust-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuselessgoddess%2Frust-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b60f709baa75602d655f0518a78e51e8d65794fb
[INFO] documenting uselessgoddess/rust-client against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuselessgoddess%2Frust-client" "/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/uselessgoddess/rust-client on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uselessgoddess/rust-client
[INFO] finished tweaking git repo https://github.com/uselessgoddess/rust-client
[INFO] tweaked toml for git repo https://github.com/uselessgoddess/rust-client written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/uselessgoddess/rust-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de6bc575ae27647989e2449d50b69c06e21e620acb68e265a6a8688aadc89395
[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" "de6bc575ae27647989e2449d50b69c06e21e620acb68e265a6a8688aadc89395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de6bc575ae27647989e2449d50b69c06e21e620acb68e265a6a8688aadc89395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de6bc575ae27647989e2449d50b69c06e21e620acb68e265a6a8688aadc89395", kill_on_drop: false }`
[INFO] [stdout] de6bc575ae27647989e2449d50b69c06e21e620acb68e265a6a8688aadc89395
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] 11434506ba1aed4fc6c8ccd91239a15a00367bff931b5e139febcadaa768432b
[INFO] running `Command { std: "docker" "start" "-a" "11434506ba1aed4fc6c8ccd91239a15a00367bff931b5e139febcadaa768432b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling version_check v0.9.4
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[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling memchr v2.4.1
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[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking fastrand v1.6.0
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling zstd-safe v4.1.3+zstd.1.5.1
[INFO] [stderr]     Checking local-waker v0.1.2
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]    Compiling firestorm v0.5.0
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking language-tags v0.3.2
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[INFO] [stderr]     Checking concurrent-queue v1.2.2
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[INFO] [stderr]    Compiling generic-array v0.14.5
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[INFO] [stderr]    Compiling proc-macro2 v1.0.36
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[INFO] [stderr]    Compiling miniz_oxide v0.4.4
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[INFO] [stderr]     Checking async-channel v1.6.1
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[INFO] [stderr]    Compiling cc v1.0.72
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[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking crypto-common v0.1.1
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[INFO] [stderr]    Compiling regex v1.5.4
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[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling zstd-sys v1.6.2+zstd.1.5.1
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling actix-router v0.5.0-beta.4
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling actix-macros v0.2.3
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling actix-web-codegen v0.5.0-rc.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.10.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking actix-rt v2.5.1
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking actix-server v2.0.0-rc.3
[INFO] [stderr]     Checking h2 v0.3.10
[INFO] [stderr]     Checking actix-codec v0.4.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking hyper v0.14.16
[INFO] [stderr]     Checking zstd v0.9.2+zstd.1.5.1
[INFO] [stderr]     Checking actix-http v3.0.0-beta.18
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.8
[INFO] [stderr]     Checking actix-web v4.0.0-beta.19
[INFO] [stderr]  Documenting rust-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bench_black_box)]
[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 document `rust-client`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name rust_client src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=9a0b19d92608860a -L dependency=/opt/rustwide/target/debug/deps --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-d7845bd5a658f648.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-3e165ae60ee9a78a.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-45e5b327b9901709.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-579564568f5623c5.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-76c811c90f6b7e40.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "11434506ba1aed4fc6c8ccd91239a15a00367bff931b5e139febcadaa768432b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11434506ba1aed4fc6c8ccd91239a15a00367bff931b5e139febcadaa768432b", kill_on_drop: false }`
[INFO] [stdout] 11434506ba1aed4fc6c8ccd91239a15a00367bff931b5e139febcadaa768432b