[INFO] fetching crate bitcoin-script 0.1.1...
[INFO] documenting bitcoin-script-0.1.1 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate bitcoin-script 0.1.1 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate bitcoin-script 0.1.1 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 bitcoin-script 0.1.1
[INFO] finished tweaking crates.io crate bitcoin-script 0.1.1
[INFO] tweaked toml for crates.io crate bitcoin-script 0.1.1 written to /workspace/builds/worker-75/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] d0264aca5783ff859b653cd4b942c43ad00e9437a50de3172c70c35e701a17d4
[INFO] running `Command { std: "docker" "start" "-a" "d0264aca5783ff859b653cd4b942c43ad00e9437a50de3172c70c35e701a17d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0264aca5783ff859b653cd4b942c43ad00e9437a50de3172c70c35e701a17d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0264aca5783ff859b653cd4b942c43ad00e9437a50de3172c70c35e701a17d4", kill_on_drop: false }`
[INFO] [stdout] d0264aca5783ff859b653cd4b942c43ad00e9437a50de3172c70c35e701a17d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 709b649bc7bab0f6f27bad28a1a312b79dad06f61042bc2ad97c48aa60961161
[INFO] running `Command { std: "docker" "start" "-a" "709b649bc7bab0f6f27bad28a1a312b79dad06f61042bc2ad97c48aa60961161", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking bitcoin_hashes v0.7.6
[INFO] [stderr]     Checking bech32 v0.7.3
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]    Compiling syn-mid v0.5.3
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]     Checking bitcoin v0.23.0
[INFO] [stderr]  Documenting bitcoin-script v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:117:1
[INFO] [stdout]     |
[INFO] [stdout] 117 | #![feature(proc_macro_hygiene)]
[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 `bitcoin-script`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name bitcoin_script 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 bitcoin=/opt/rustwide/target/debug/deps/libbitcoin-ecb9f277bf820880.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-3303e62dbe377562.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-5e37eee3e84fafab.rmeta --extern proc_macro_error=/opt/rustwide/target/debug/deps/libproc_macro_error-86e084ccb88d0db8.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c395b40247ac8d91.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-901816f2d165e43f.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "709b649bc7bab0f6f27bad28a1a312b79dad06f61042bc2ad97c48aa60961161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709b649bc7bab0f6f27bad28a1a312b79dad06f61042bc2ad97c48aa60961161", kill_on_drop: false }`
[INFO] [stdout] 709b649bc7bab0f6f27bad28a1a312b79dad06f61042bc2ad97c48aa60961161
