[INFO] fetching crate tor_control 0.2.0...
[INFO] documenting tor_control-0.2.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate tor_control 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tor_control 0.2.0 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 tor_control 0.2.0
[INFO] finished tweaking crates.io crate tor_control 0.2.0
[INFO] tweaked toml for crates.io crate tor_control 0.2.0 written to /workspace/builds/worker-12/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 201f80f3024d61a197bed542b9bac5115e8053eba4740dec5149edfa585a2bf9
[INFO] running `Command { std: "docker" "start" "-a" "201f80f3024d61a197bed542b9bac5115e8053eba4740dec5149edfa585a2bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "201f80f3024d61a197bed542b9bac5115e8053eba4740dec5149edfa585a2bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201f80f3024d61a197bed542b9bac5115e8053eba4740dec5149edfa585a2bf9", kill_on_drop: false }`
[INFO] [stdout] 201f80f3024d61a197bed542b9bac5115e8053eba4740dec5149edfa585a2bf9
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/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] ffbcdeaa7e92791f94d3aab184932d28ff190eac2f9b6ed027339f1b9b79c1f0
[INFO] running `Command { std: "docker" "start" "-a" "ffbcdeaa7e92791f94d3aab184932d28ff190eac2f9b6ed027339f1b9b79c1f0", kill_on_drop: false }`
[INFO] [stderr]  Documenting tor_control v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stdout]    --> src/lib.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 |     type Err = ();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(try_from)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0437, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0437`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `tor_control`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name tor_control 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 bufstream=/opt/rustwide/target/debug/deps/libbufstream-9410dbe44b9d9845.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-533cf53875604e8f.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ffbcdeaa7e92791f94d3aab184932d28ff190eac2f9b6ed027339f1b9b79c1f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffbcdeaa7e92791f94d3aab184932d28ff190eac2f9b6ed027339f1b9b79c1f0", kill_on_drop: false }`
[INFO] [stdout] ffbcdeaa7e92791f94d3aab184932d28ff190eac2f9b6ed027339f1b9b79c1f0
