[INFO] cloning repository https://github.com/Sushisource/hubtain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sushisource/hubtain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSushisource%2Fhubtain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSushisource%2Fhubtain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5365c0c6b2da6af73c45164ce4aeaaa577d74d7e
[INFO] documenting Sushisource/hubtain against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSushisource%2Fhubtain" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sushisource/hubtain 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 git repo https://github.com/Sushisource/hubtain
[INFO] finished tweaking git repo https://github.com/Sushisource/hubtain
[INFO] tweaked toml for git repo https://github.com/Sushisource/hubtain written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Sushisource/hubtain 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9f685300b1afb157b21884ed723aeab9ffbfece6d85c9e3e68860b3255a2dbf9
[INFO] running `Command { std: "docker" "start" "-a" "9f685300b1afb157b21884ed723aeab9ffbfece6d85c9e3e68860b3255a2dbf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f685300b1afb157b21884ed723aeab9ffbfece6d85c9e3e68860b3255a2dbf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f685300b1afb157b21884ed723aeab9ffbfece6d85c9e3e68860b3255a2dbf9", kill_on_drop: false }`
[INFO] [stdout] 9f685300b1afb157b21884ed723aeab9ffbfece6d85c9e3e68860b3255a2dbf9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 676be2ff884f4a8cf2ab2bdc81952e0a67475f683efc5eb75d4923ee91c297d7
[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" "676be2ff884f4a8cf2ab2bdc81952e0a67475f683efc5eb75d4923ee91c297d7", kill_on_drop: false }`
[INFO] [stderr]     Checking fastrand v1.3.5
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking xmltree v0.10.1
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking mnemonic v1.0.1
[INFO] [stderr]    Compiling snow v0.7.2
[INFO] [stderr]     Checking mio v0.7.1
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking nb-connect v1.0.1
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking attohttpc v0.10.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking console v0.12.0
[INFO] [stderr]     Checking futures-lite v1.8.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking crossterm v0.18.0
[INFO] [stderr]     Checking igd v0.11.1
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking tui v0.12.0
[INFO] [stderr]     Checking async-io v1.1.6
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking chacha20 v0.5.0
[INFO] [stderr]     Checking async-global-executor v1.3.0
[INFO] [stderr]     Checking chacha20poly1305 v0.6.0
[INFO] [stderr]     Checking async-std v1.6.5
[INFO] [stderr]     Checking x25519-dalek v1.1.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting hubtain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, async_closure, fixed_size_array)]
[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 `hubtain`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name hubtain src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-939bb92c8d96bb88.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-7325f5d96da569cf.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-93d3a06a20cf1420.so --extern atty=/opt/rustwide/target/debug/deps/libatty-ae177de3ee0145ef.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-11f40b1a1e92b7f6.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-8cd7e1cbc825b249.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-745a024cf6ebe3bf.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-828b75827e5a31ab.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-686c56353345b456.so --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-acaf5a3a6f64a5c0.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-a52536462c1b16ac.rmeta --extern get_if_addrs=/opt/rustwide/target/debug/deps/libget_if_addrs-38c533a61278a9d2.rmeta --extern igd=/opt/rustwide/target/debug/deps/libigd-78bb7b3170fd9683.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-5dc58a6e1ed876ea.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-72923b2d9aa06af7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d1bc27e390c9f551.rmeta --extern mnemonic=/opt/rustwide/target/debug/deps/libmnemonic-2daf45aa8cb44d19.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-aa8e27757ec3cf33.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c0f679ee222448d4.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-b9314331ecaf12d2.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-00ba7468ab7aef9e.rmeta --extern snow=/opt/rustwide/target/debug/deps/libsnow-e4965ffe0056a337.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-7740d2e00c23f951.rmeta --extern tui=/opt/rustwide/target/debug/deps/libtui-b954ad7e02dba990.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "676be2ff884f4a8cf2ab2bdc81952e0a67475f683efc5eb75d4923ee91c297d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "676be2ff884f4a8cf2ab2bdc81952e0a67475f683efc5eb75d4923ee91c297d7", kill_on_drop: false }`
[INFO] [stdout] 676be2ff884f4a8cf2ab2bdc81952e0a67475f683efc5eb75d4923ee91c297d7
