[INFO] fetching crate quiche-tokio 0.1.0...
[INFO] testing quiche-tokio-0.1.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate quiche-tokio 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate quiche-tokio 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quiche-tokio 0.1.0
[INFO] finished tweaking crates.io crate quiche-tokio 0.1.0
[INFO] tweaked toml for crates.io crate quiche-tokio 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded octets v0.2.0
[INFO] [stderr]   Downloaded quiche v0.18.0
[INFO] [stderr]   Downloaded qlog v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caaff8bd74b3ccbb3ffb71f006ef8bfa91f9ff9e74ac839cce2a0fa828ef1d58
[INFO] running `Command { std: "docker" "start" "-a" "caaff8bd74b3ccbb3ffb71f006ef8bfa91f9ff9e74ac839cce2a0fa828ef1d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caaff8bd74b3ccbb3ffb71f006ef8bfa91f9ff9e74ac839cce2a0fa828ef1d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caaff8bd74b3ccbb3ffb71f006ef8bfa91f9ff9e74ac839cce2a0fa828ef1d58", kill_on_drop: false }`
[INFO] [stdout] caaff8bd74b3ccbb3ffb71f006ef8bfa91f9ff9e74ac839cce2a0fa828ef1d58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8d79c50309a847d44c68df479df16174c27e09348833da601d44918c0cc8412
[INFO] running `Command { std: "docker" "start" "-a" "e8d79c50309a847d44c68df479df16174c27e09348833da601d44918c0cc8412", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling cc v1.0.85
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling octets v0.2.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling intrusive-collections v0.9.6
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling indexmap v2.2.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling quiche v0.18.0
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling serde_with v1.14.0
[INFO] [stderr]    Compiling smallvec v1.13.1
[INFO] [stderr]    Compiling qlog v0.9.0
[INFO] [stderr]    Compiling quiche-tokio 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(extract_if)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `quiche-tokio` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e8d79c50309a847d44c68df479df16174c27e09348833da601d44918c0cc8412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8d79c50309a847d44c68df479df16174c27e09348833da601d44918c0cc8412", kill_on_drop: false }`
[INFO] [stdout] e8d79c50309a847d44c68df479df16174c27e09348833da601d44918c0cc8412
