[INFO] fetching crate pahi-olin 0.1.0...
[INFO] documenting pahi-olin-0.1.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate pahi-olin 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate pahi-olin 0.1.0 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 pahi-olin 0.1.0
[INFO] finished tweaking crates.io crate pahi-olin 0.1.0
[INFO] tweaked toml for crates.io crate pahi-olin 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 17784b3a993a8ddcb9db1ec5fa7dd7aff5f52c0806e284cfe568dec583e355e7
[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" "17784b3a993a8ddcb9db1ec5fa7dd7aff5f52c0806e284cfe568dec583e355e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17784b3a993a8ddcb9db1ec5fa7dd7aff5f52c0806e284cfe568dec583e355e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17784b3a993a8ddcb9db1ec5fa7dd7aff5f52c0806e284cfe568dec583e355e7", kill_on_drop: false }`
[INFO] [stdout] 17784b3a993a8ddcb9db1ec5fa7dd7aff5f52c0806e284cfe568dec583e355e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce369e6e9e008497efc3f0c6bbe04e52e64d67a2debee1649fd641a4848a73b8
[INFO] running `Command { std: "docker" "start" "-a" "ce369e6e9e008497efc3f0c6bbe04e52e64d67a2debee1649fd641a4848a73b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-entity v0.52.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.52.0
[INFO] [stderr]    Compiling target-lexicon v0.9.0
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking wasmparser v0.45.2
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking errno v0.2.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde-bench v0.0.7
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking cranelift-bforest v0.52.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.52.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rayon v1.4.0
[INFO] [stderr]    Compiling wasmer-runtime-core v0.13.1
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling cranelift-codegen v0.52.0
[INFO] [stderr]     Checking wasmer-clif-fork-frontend v0.52.0
[INFO] [stderr]     Checking cranelift-native v0.52.0
[INFO] [stderr]     Checking wasmer-clif-fork-wasm v0.52.0
[INFO] [stderr]     Checking wasmer-clif-backend v0.13.1
[INFO] [stderr]     Checking wasmer-runtime v0.13.1
[INFO] [stderr]  Documenting pahi-olin v0.1.0 (/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(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 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 `pahi-olin`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name pahi_olin 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 chrono=/opt/rustwide/target/debug/deps/libchrono-c0b1fac337207437.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-75d540134d633bf3.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-c4278c19338dbfd2.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-705f46f124ac753d.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-97786b56b6ba7a5b.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-762ba2e1e45d868f.rmeta --extern wasmer_runtime=/opt/rustwide/target/debug/deps/libwasmer_runtime-d4dd9e397730306c.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ce369e6e9e008497efc3f0c6bbe04e52e64d67a2debee1649fd641a4848a73b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce369e6e9e008497efc3f0c6bbe04e52e64d67a2debee1649fd641a4848a73b8", kill_on_drop: false }`
[INFO] [stdout] ce369e6e9e008497efc3f0c6bbe04e52e64d67a2debee1649fd641a4848a73b8