[INFO] fetching crate decide 0.1.1...
[INFO] documenting decide-0.1.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate decide 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate decide 0.1.1 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 decide 0.1.1
[INFO] finished tweaking crates.io crate decide 0.1.1
[INFO] tweaked toml for crates.io crate decide 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate decide 0.1.1 already has a lockfile, it will not be regenerated
[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] 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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8a40944b9fa82f83a35b6ed0e28ac95107e11c9dae00c62ddd3dbebf9aa9d73
[INFO] running `Command { std: "docker" "start" "-a" "d8a40944b9fa82f83a35b6ed0e28ac95107e11c9dae00c62ddd3dbebf9aa9d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8a40944b9fa82f83a35b6ed0e28ac95107e11c9dae00c62ddd3dbebf9aa9d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a40944b9fa82f83a35b6ed0e28ac95107e11c9dae00c62ddd3dbebf9aa9d73", kill_on_drop: false }`
[INFO] [stdout] d8a40944b9fa82f83a35b6ed0e28ac95107e11c9dae00c62ddd3dbebf9aa9d73
[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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25afce90dbcfd4b3a361727c487f34a43fc5f2090e400571e3c8f0ffa69ebf1f
[INFO] running `Command { std: "docker" "start" "-a" "25afce90dbcfd4b3a361727c487f34a43fc5f2090e400571e3c8f0ffa69ebf1f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking cmd_lib v0.7.8
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]  Documenting decide v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/error.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl From<std::option::NoneError> for Error {
[INFO] [stdout]    |                        ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/error.rs:33:29
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn from(_: std::option::NoneError) -> Self {
[INFO] [stdout]    |                             ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[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: E0412, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `decide`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name decide src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-b11652ef125a9522.rmeta --extern cmd_lib=/opt/rustwide/target/debug/deps/libcmd_lib-c65c9c722d632e78.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-519e9684c0479519.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c7177294ddbf3467.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7a3cab287a800bd8.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-f6d2fac3980b960a.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "25afce90dbcfd4b3a361727c487f34a43fc5f2090e400571e3c8f0ffa69ebf1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25afce90dbcfd4b3a361727c487f34a43fc5f2090e400571e3c8f0ffa69ebf1f", kill_on_drop: false }`
[INFO] [stdout] 25afce90dbcfd4b3a361727c487f34a43fc5f2090e400571e3c8f0ffa69ebf1f
