[INFO] fetching crate rcommunity_core 0.0.3...
[INFO] testing rcommunity_core-0.0.3 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate rcommunity_core 0.0.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rcommunity_core 0.0.3
[INFO] finished tweaking crates.io crate rcommunity_core 0.0.3
[INFO] tweaked toml for crates.io crate rcommunity_core 0.0.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rcommunity_core 0.0.3 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to highest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.21)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6
[INFO] running `Command { std: "docker" "start" "322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling smallvec v1.16.3
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling uuid v1.28.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling async-trait v0.1.92
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling rcommunity_core v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `reactions::*`
[INFO] [stdout]  --> src/markers/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use reactions::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rcommunity_core` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6", kill_on_drop: false }`
[INFO] [stdout] 322fb88c8056a5eb95aa5349e2f56848c002e515afa818b8b8bce8f970aa25b6
