[INFO] fetching crate py_pathfinding 0.1.5...
[INFO] documenting py_pathfinding-0.1.5 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate py_pathfinding 0.1.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate py_pathfinding 0.1.5 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate py_pathfinding 0.1.5
[INFO] finished tweaking crates.io crate py_pathfinding 0.1.5
[INFO] tweaked toml for crates.io crate py_pathfinding 0.1.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate py_pathfinding 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c758da441326906a91ff80a55e32527b1cc6c3053a06b59da186cd995a8b2c05
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c758da441326906a91ff80a55e32527b1cc6c3053a06b59da186cd995a8b2c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c758da441326906a91ff80a55e32527b1cc6c3053a06b59da186cd995a8b2c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c758da441326906a91ff80a55e32527b1cc6c3053a06b59da186cd995a8b2c05", kill_on_drop: false }`
[INFO] [stdout] c758da441326906a91ff80a55e32527b1cc6c3053a06b59da186cd995a8b2c05
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba3821043cb591cc1bc8a713681d7a2e4c315fae8d30a5536cd778e0cb767618
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ba3821043cb591cc1bc8a713681d7a2e4c315fae8d30a5536cd778e0cb767618", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]  Documenting py_pathfinding v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `py_pathfinding`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name py_pathfinding 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 fnv=/opt/rustwide/target/debug/deps/libfnv-7722d5952f112cf5.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-abba162a3b3662af.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ba3821043cb591cc1bc8a713681d7a2e4c315fae8d30a5536cd778e0cb767618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba3821043cb591cc1bc8a713681d7a2e4c315fae8d30a5536cd778e0cb767618", kill_on_drop: false }`
[INFO] [stdout] ba3821043cb591cc1bc8a713681d7a2e4c315fae8d30a5536cd778e0cb767618