[INFO] fetching crate rsql-rs 0.2.0...
[INFO] documenting rsql-rs-0.2.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate rsql-rs 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rsql-rs 0.2.0 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 rsql-rs 0.2.0
[INFO] finished tweaking crates.io crate rsql-rs 0.2.0
[INFO] tweaked toml for crates.io crate rsql-rs 0.2.0 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 5da13d5a27a114bbe0ac001ea95d0d3111ef96b37d9814c81bcc0935769d675a
[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" "5da13d5a27a114bbe0ac001ea95d0d3111ef96b37d9814c81bcc0935769d675a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5da13d5a27a114bbe0ac001ea95d0d3111ef96b37d9814c81bcc0935769d675a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5da13d5a27a114bbe0ac001ea95d0d3111ef96b37d9814c81bcc0935769d675a", kill_on_drop: false }`
[INFO] [stdout] 5da13d5a27a114bbe0ac001ea95d0d3111ef96b37d9814c81bcc0935769d675a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] dbb99afc5e2e33de45c175d58cffce4607a6759b9139727278ecda074a5fd379
[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" "dbb99afc5e2e33de45c175d58cffce4607a6759b9139727278ecda074a5fd379", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling frunk_core v0.3.1
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.4
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.4
[INFO] [stderr]    Compiling frunk_derives v0.3.1
[INFO] [stderr]     Checking frunk_proc_macros v0.0.4
[INFO] [stderr]     Checking frunk v0.3.1
[INFO] [stderr]  Documenting rsql-rs v0.2.0 (/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(backtrace)]
[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 `rsql-rs`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name rsql_rs 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 anyhow=/opt/rustwide/target/debug/deps/libanyhow-43a48fd651ba2367.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-cf2ba41b0aa9e937.rmeta --extern frunk=/opt/rustwide/target/debug/deps/libfrunk-81d9a552304a4ded.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-57a7edc7f441d44c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-958bf2a074a4960f.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-8e83e6e946416937.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-27cb4eb04ccb10d3.so --extern regex=/opt/rustwide/target/debug/deps/libregex-5103ea9f59ed634c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-cf2a7db764a470fc.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-f7ccfbd11c8a72bd.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-839d365c89f891f2.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-93fe6da3e2ff1ba4.so --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-cb2ac387f7e441e4.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "dbb99afc5e2e33de45c175d58cffce4607a6759b9139727278ecda074a5fd379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb99afc5e2e33de45c175d58cffce4607a6759b9139727278ecda074a5fd379", kill_on_drop: false }`
[INFO] [stdout] dbb99afc5e2e33de45c175d58cffce4607a6759b9139727278ecda074a5fd379