[INFO] cloning repository https://github.com/Twister915/rustcord
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Twister915/rustcord" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwister915%2Frustcord", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwister915%2Frustcord'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a33702e7aceb04bc87fab351b0791ed62988445
[INFO] documenting Twister915/rustcord against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwister915%2Frustcord" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Twister915/rustcord 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] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Twister915/rustcord
[INFO] finished tweaking git repo https://github.com/Twister915/rustcord
[INFO] tweaked toml for git repo https://github.com/Twister915/rustcord written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Twister915/rustcord already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/Twister915/mcproto-rs`
[INFO] [stderr]     Updating git repository `https://github.com/Twister915/mctokio`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cipher v0.2.1
[INFO] [stderr]   Downloaded flate2 v1.0.18
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[INFO] [stderr]   Downloaded hyper v0.13.8
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[INFO] [stderr]   Downloaded anyhow v1.0.33
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[INFO] [stderr]   Downloaded zeroize v1.1.1
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[INFO] [stderr]   Downloaded futures-macro v0.3.6
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[INFO] [stderr]   Downloaded addr2line v0.13.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 7fdc92cc69874858597e83c2b5d30024be3a2bf4dada1aae33a4319f56ac11f9
[INFO] running `Command { std: "docker" "start" "-a" "7fdc92cc69874858597e83c2b5d30024be3a2bf4dada1aae33a4319f56ac11f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fdc92cc69874858597e83c2b5d30024be3a2bf4dada1aae33a4319f56ac11f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fdc92cc69874858597e83c2b5d30024be3a2bf4dada1aae33a4319f56ac11f9", kill_on_drop: false }`
[INFO] [stdout] 7fdc92cc69874858597e83c2b5d30024be3a2bf4dada1aae33a4319f56ac11f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b01ac0c8256305f5995f692259ce3ddc60f4f434e04d94eba48528e10acb4c22
[INFO] running `Command { std: "docker" "start" "-a" "b01ac0c8256305f5995f692259ce3ddc60f4f434e04d94eba48528e10acb4c22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling version_check v0.9.2
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[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.22.0
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[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking rustc-demangle v0.1.18
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[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking base64 v0.12.3
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[INFO] [stderr]    Compiling log v0.4.11
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[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
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[INFO] [stderr]    Compiling bitflags v1.2.1
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[INFO] [stderr]    Compiling httparse v1.3.4
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[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]     Checking tracing v0.1.21
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[INFO] [stderr]    Compiling mime_guess v2.0.3
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[INFO] [stderr]     Checking rand_core v0.5.1
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[INFO] [stderr]     Checking cipher v0.2.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking aes-soft v0.6.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking rsa-der v0.2.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking mcproto-rs v0.2.0 (https://github.com/Twister915/mcproto-rs?branch=master#e94567e0)
[INFO] [stderr] error: could not compile `h2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name h2 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/h2-0.2.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on -C metadata=303212424a8a3a66 -C extra-filename=-303212424a8a3a66 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-b7f9768c9ea0310b.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-8458c3bb87b06458.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-e124331b0710eee4.rmeta --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-57ca39ac8f759941.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-4a88e13b9db7e412.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-b48f364e306ed0a0.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-808a992590a36daa.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-3dcf663d9dd249e1.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-a5c20f3127306d85.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-b95864d0a8f2b915.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-637244aea6a86eaa.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/mcproto-rs-51369d3f76159bf8/e94567e/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "bench", feature(test))]
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "b01ac0c8256305f5995f692259ce3ddc60f4f434e04d94eba48528e10acb4c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b01ac0c8256305f5995f692259ce3ddc60f4f434e04d94eba48528e10acb4c22", kill_on_drop: false }`
[INFO] [stdout] b01ac0c8256305f5995f692259ce3ddc60f4f434e04d94eba48528e10acb4c22
