[INFO] fetching crate bls-like 0.1.0...
[INFO] documenting bls-like-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate bls-like 0.1.0 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate bls-like 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bls-like 0.1.0
[INFO] finished tweaking crates.io crate bls-like 0.1.0
[INFO] tweaked toml for crates.io crate bls-like 0.1.0 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75faeef61cb41064f6b6495088a80d62c8d7ede645a68f321be9b8483fdc8b8f
[INFO] running `Command { std: "docker" "start" "-a" "75faeef61cb41064f6b6495088a80d62c8d7ede645a68f321be9b8483fdc8b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75faeef61cb41064f6b6495088a80d62c8d7ede645a68f321be9b8483fdc8b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75faeef61cb41064f6b6495088a80d62c8d7ede645a68f321be9b8483fdc8b8f", kill_on_drop: false }`
[INFO] [stdout] 75faeef61cb41064f6b6495088a80d62c8d7ede645a68f321be9b8483fdc8b8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee07ae498d7c44df84f52ea7329d7e2ef73de2f892ead647d1fe353c7da3bfcf
[INFO] running `Command { std: "docker" "start" "-a" "ee07ae498d7c44df84f52ea7329d7e2ef73de2f892ead647d1fe353c7da3bfcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]    Compiling ff_derive v0.3.0
[INFO] [stderr]     Checking ff v0.4.0
[INFO] [stderr]     Checking paired v0.15.1
[INFO] [stderr]  Documenting bls-like v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #![feature(associated_type_defaults)]
[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 `bls-like`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name bls_like 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 arrayref=/opt/rustwide/target/debug/deps/libarrayref-2a288548cf333a87.rmeta --extern ff=/opt/rustwide/target/debug/deps/libff-64b3f89d5b75b597.rmeta --extern paired=/opt/rustwide/target/debug/deps/libpaired-efa5c13df4a7a84c.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b62d56a65f9c5471.rmeta --extern sha3=/opt/rustwide/target/debug/deps/libsha3-8ddedae33aaf57e5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ee07ae498d7c44df84f52ea7329d7e2ef73de2f892ead647d1fe353c7da3bfcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee07ae498d7c44df84f52ea7329d7e2ef73de2f892ead647d1fe353c7da3bfcf", kill_on_drop: false }`
[INFO] [stdout] ee07ae498d7c44df84f52ea7329d7e2ef73de2f892ead647d1fe353c7da3bfcf
