[INFO] fetching crate drainrs 0.1.0...
[INFO] documenting drainrs-0.1.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate drainrs 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate drainrs 0.1.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drainrs 0.1.0
[INFO] finished tweaking crates.io crate drainrs 0.1.0
[INFO] tweaked toml for crates.io crate drainrs 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate drainrs 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indextree v4.5.0
[INFO] [stderr]   Downloaded ryu-ecmascript v0.1.1
[INFO] [stderr]   Downloaded json_in_type v1.1.1
[INFO] [stderr]   Downloaded simple_logger v4.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b18c959e005e1346f67255cdaf84398fdaf5b52f33895c92755611ab6abbb95a
[INFO] running `Command { std: "docker" "start" "-a" "b18c959e005e1346f67255cdaf84398fdaf5b52f33895c92755611ab6abbb95a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b18c959e005e1346f67255cdaf84398fdaf5b52f33895c92755611ab6abbb95a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b18c959e005e1346f67255cdaf84398fdaf5b52f33895c92755611ab6abbb95a", kill_on_drop: false }`
[INFO] [stdout] b18c959e005e1346f67255cdaf84398fdaf5b52f33895c92755611ab6abbb95a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6314abfb2cfeb79b36eed6b1e50b27c3b173f756d19da6437556030509a04e4
[INFO] running `Command { std: "docker" "start" "-a" "f6314abfb2cfeb79b36eed6b1e50b27c3b173f756d19da6437556030509a04e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling ryu-ecmascript v0.1.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking indextree v4.5.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking json_in_type v1.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]     Checking thiserror v1.0.38
[INFO] [stderr]  Documenting drainrs 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(hash_raw_entry)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[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 `drainrs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name drainrs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=43f5b84b98b7d57f -L dependency=/opt/rustwide/target/debug/deps --extern indextree=/opt/rustwide/target/debug/deps/libindextree-642969d7b9a7f2c8.rmeta --extern json_in_type=/opt/rustwide/target/debug/deps/libjson_in_type-4804c34fa032c39f.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-43372439ad3c157d.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-d6c0fc1c3951a03f.rmeta --extern rustc_hash=/opt/rustwide/target/debug/deps/librustc_hash-1904cd8478c1b0ae.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-df21c7c1b8be4de5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f6314abfb2cfeb79b36eed6b1e50b27c3b173f756d19da6437556030509a04e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6314abfb2cfeb79b36eed6b1e50b27c3b173f756d19da6437556030509a04e4", kill_on_drop: false }`
[INFO] [stdout] f6314abfb2cfeb79b36eed6b1e50b27c3b173f756d19da6437556030509a04e4
