[INFO] cloning repository https://github.com/althonos/nanoset.py
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/althonos/nanoset.py" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falthonos%2Fnanoset.py", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falthonos%2Fnanoset.py'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4a5ee4e2d052b2aca6171eb872d9d267f04bd56
[INFO] documenting althonos/nanoset.py against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falthonos%2Fnanoset.py" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/althonos/nanoset.py 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 git repo https://github.com/althonos/nanoset.py
[INFO] finished tweaking git repo https://github.com/althonos/nanoset.py
[INFO] tweaked toml for git repo https://github.com/althonos/nanoset.py written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/althonos/nanoset.py 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] d14c5a1aa6266f09c7b54850bd2105955c501a59dfd339747c120b49cfba076e
[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" "d14c5a1aa6266f09c7b54850bd2105955c501a59dfd339747c120b49cfba076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d14c5a1aa6266f09c7b54850bd2105955c501a59dfd339747c120b49cfba076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14c5a1aa6266f09c7b54850bd2105955c501a59dfd339747c120b49cfba076e", kill_on_drop: false }`
[INFO] [stdout] d14c5a1aa6266f09c7b54850bd2105955c501a59dfd339747c120b49cfba076e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0291fd6ed8f533cb3260404b04adbf2b22362f7e8f997cc0786fdee705d6497c
[INFO] running `Command { std: "docker" "start" "-a" "0291fd6ed8f533cb3260404b04adbf2b22362f7e8f997cc0786fdee705d6497c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling pyo3 v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling pyo3-derive-backend v0.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling paste-impl v0.1.16
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling indoc-impl v0.3.5
[INFO] [stderr]    Compiling inventory-impl v0.1.6
[INFO] [stderr]    Compiling pyo3cls v0.11.0
[INFO] [stderr]     Checking indoc v0.3.5
[INFO] [stderr]     Checking paste v0.1.16
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking cargo-lock v4.0.1
[INFO] [stderr]     Checking built v0.4.2
[INFO] [stderr]     Checking pyo3-built v0.4.2
[INFO] [stderr]    Compiling nanoset-py v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting nanoset-py v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> nanoset/lib.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(doc_cfg, external_doc)]
[INFO] [stdout]   |                     ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> nanoset/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(doc_cfg, external_doc)]
[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: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `nanoset-py`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-type rlib --crate-name nanoset_py nanoset/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern pyo3=/opt/rustwide/target/debug/deps/libpyo3-3124bdbde070887c.rmeta --extern pyo3_built=/opt/rustwide/target/debug/deps/libpyo3_built-4ed7ea8c5727b430.rmeta --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0291fd6ed8f533cb3260404b04adbf2b22362f7e8f997cc0786fdee705d6497c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0291fd6ed8f533cb3260404b04adbf2b22362f7e8f997cc0786fdee705d6497c", kill_on_drop: false }`
[INFO] [stdout] 0291fd6ed8f533cb3260404b04adbf2b22362f7e8f997cc0786fdee705d6497c
