[INFO] fetching crate crescent 0.0.1-alpha1...
[INFO] documenting crescent-0.0.1-alpha1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate crescent 0.0.1-alpha1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate crescent 0.0.1-alpha1 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 crescent 0.0.1-alpha1
[INFO] finished tweaking crates.io crate crescent 0.0.1-alpha1
[INFO] tweaked toml for crates.io crate crescent 0.0.1-alpha1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate crescent 0.0.1-alpha1 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30634c6d7586fb336327f27be35cf66dcd98db7d8e6fe9c3c8541c9dea7f3c60
[INFO] running `Command { std: "docker" "start" "-a" "30634c6d7586fb336327f27be35cf66dcd98db7d8e6fe9c3c8541c9dea7f3c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30634c6d7586fb336327f27be35cf66dcd98db7d8e6fe9c3c8541c9dea7f3c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30634c6d7586fb336327f27be35cf66dcd98db7d8e6fe9c3c8541c9dea7f3c60", kill_on_drop: false }`
[INFO] [stdout] 30634c6d7586fb336327f27be35cf66dcd98db7d8e6fe9c3c8541c9dea7f3c60
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/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] da158b963fdd03dca95baa306dedfa3b413a3b91f2d407618d2f4870dba392d3
[INFO] running `Command { std: "docker" "start" "-a" "da158b963fdd03dca95baa306dedfa3b413a3b91f2d407618d2f4870dba392d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling nom8 v0.2.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling fixed v1.23.0
[INFO] [stderr]    Compiling toml_datetime v0.5.1
[INFO] [stderr]     Checking concurrent-queue v2.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking async-lock v2.6.0
[INFO] [stderr]    Compiling quick-xml v0.28.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rust-format v0.3.4
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling linkify v0.9.0
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]     Checking unicode-ident v1.0.6
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling toml_edit v0.18.1
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling bytemuck v1.13.0
[INFO] [stderr]     Checking async-task v4.3.0
[INFO] [stderr]    Compiling half v2.2.1
[INFO] [stderr]    Compiling clang-sys v1.6.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.0
[INFO] [stderr]     Checking async-channel v1.8.0
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]     Checking atomic-waker v1.1.0
[INFO] [stderr]    Compiling runa-io-traits v0.0.1-alpha1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/runa-io-traits-0.0.1-alpha1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `runa-io-traits` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "da158b963fdd03dca95baa306dedfa3b413a3b91f2d407618d2f4870dba392d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da158b963fdd03dca95baa306dedfa3b413a3b91f2d407618d2f4870dba392d3", kill_on_drop: false }`
[INFO] [stdout] da158b963fdd03dca95baa306dedfa3b413a3b91f2d407618d2f4870dba392d3
