[INFO] fetching crate iqengine-plugin 0.0.1...
[INFO] documenting iqengine-plugin-0.0.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate iqengine-plugin 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate iqengine-plugin 0.0.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iqengine-plugin 0.0.1
[INFO] finished tweaking crates.io crate iqengine-plugin 0.0.1
[INFO] tweaked toml for crates.io crate iqengine-plugin 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a639c342c0ddf79f75aea2312657ab7a0aeedd0b611755197256cdba5ced59b
[INFO] running `Command { std: "docker" "start" "-a" "6a639c342c0ddf79f75aea2312657ab7a0aeedd0b611755197256cdba5ced59b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a639c342c0ddf79f75aea2312657ab7a0aeedd0b611755197256cdba5ced59b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a639c342c0ddf79f75aea2312657ab7a0aeedd0b611755197256cdba5ced59b", kill_on_drop: false }`
[INFO] [stdout] 6a639c342c0ddf79f75aea2312657ab7a0aeedd0b611755197256cdba5ced59b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cedf3700784934ec55f95bdac8932b17d3a1fc0da492c476d13d068830fbbaf
[INFO] running `Command { std: "docker" "start" "-a" "8cedf3700784934ec55f95bdac8932b17d3a1fc0da492c476d13d068830fbbaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking hound v3.5.1
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.23
[INFO] [stderr]  Documenting iqengine-plugin 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_chunks)]
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_array_chunks)]
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_fn_in_trait` has been stable since `1.75.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `iqengine-plugin`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name iqengine_plugin src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4b2c8e99fa1f2895 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-fd85f3ee78419db7.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-e6ced7469e438575.rmeta --extern hound=/opt/rustwide/target/debug/deps/libhound-0fdf48ce1de27189.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-0d0ff51b1164b515.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-b478297b2adc2ac3.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d959715fe86d3f0d.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e265033116a60165.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a16063b3c14f67da.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-7c462916088bc680.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-51e81bbd4892d5a9.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-f299371efe687ac0.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8cedf3700784934ec55f95bdac8932b17d3a1fc0da492c476d13d068830fbbaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cedf3700784934ec55f95bdac8932b17d3a1fc0da492c476d13d068830fbbaf", kill_on_drop: false }`
[INFO] [stdout] 8cedf3700784934ec55f95bdac8932b17d3a1fc0da492c476d13d068830fbbaf
