[INFO] fetching crate rain-lang 0.0.1...
[INFO] documenting rain-lang-0.0.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate rain-lang 0.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rain-lang 0.0.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rain-lang 0.0.1
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate rain-lang 0.0.1
[INFO] tweaked toml for crates.io crate rain-lang 0.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate rain-lang 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70a980da102d9eb600c57fd8f6fb2b0c46d3f7cc9923e800e6e7f23be321bc21
[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" "70a980da102d9eb600c57fd8f6fb2b0c46d3f7cc9923e800e6e7f23be321bc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70a980da102d9eb600c57fd8f6fb2b0c46d3f7cc9923e800e6e7f23be321bc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a980da102d9eb600c57fd8f6fb2b0c46d3f7cc9923e800e6e7f23be321bc21", kill_on_drop: false }`
[INFO] [stdout] 70a980da102d9eb600c57fd8f6fb2b0c46d3f7cc9923e800e6e7f23be321bc21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb438df8d46053b12ee882a2ff5e76ddf07b94c46466d518e18b8710640d0645
[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" "fb438df8d46053b12ee882a2ff5e76ddf07b94c46466d518e18b8710640d0645", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.3
[INFO] [stderr]     Checking dashmap v3.11.1
[INFO] [stderr]  Documenting rain-lang v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(weak_into_raw)]
[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 `rain-lang`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name rain_lang src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="indexmap"' --cfg 'feature="nom"' --cfg 'feature="parser"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern ahash=/opt/rustwide/target/debug/deps/libahash-2349e07df5b64104.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-a4a19a4f2c9ba919.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-ccde357106a7a978.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-2c42cfa18cdb89b6.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-72923b2d9aa06af7.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-075b53de32cf0eb2.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-8498f5a597d828b3.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-f70cb6b357eb3d8b.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-114dfb6c5477e23f.rmeta --extern rand_xoshiro=/opt/rustwide/target/debug/deps/librand_xoshiro-cc2e3837be417f04.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-d4d39211ea311600.rmeta --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "fb438df8d46053b12ee882a2ff5e76ddf07b94c46466d518e18b8710640d0645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb438df8d46053b12ee882a2ff5e76ddf07b94c46466d518e18b8710640d0645", kill_on_drop: false }`
[INFO] [stdout] fb438df8d46053b12ee882a2ff5e76ddf07b94c46466d518e18b8710640d0645
