[INFO] fetching crate futuresdr 0.9.0...
[INFO] testing futuresdr-0.9.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate futuresdr 0.9.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate futuresdr 0.9.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate futuresdr 0.9.0
[INFO] tweaked toml for crates.io crate futuresdr 0.9.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate futuresdr 0.9.0 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] crate crates.io crate futuresdr 0.9.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zmq-sys v0.12.0
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[INFO] [stderr]   Downloaded uhd-rs v0.1.2
[INFO] [stderr]   Downloaded soapysdr v0.5.1
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[INFO] [stderr]   Downloaded rtlsdr-nusb v0.3.0
[INFO] [stderr]   Downloaded libbladerf-rs v0.6.1
[INFO] [stderr]   Downloaded plutosdr-rs v0.3.0
[INFO] [stderr]   Downloaded hydrasdr-rs v0.5.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca
[INFO] running `Command { std: "docker" "start" "8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca", 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" "8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca" "/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" "8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca", 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" "8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling unicode-ident v1.0.26
[INFO] [stderr]    Compiling futures-core v0.3.34
[INFO] [stderr]    Compiling futures-io v0.3.34
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling cfg-if v1.0.5
[INFO] [stderr]    Compiling libc v0.2.190
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling parking v2.2.1
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.23
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling log v0.4.34
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling fastrand v2.5.0
[INFO] [stderr]    Compiling futures-sink v0.3.34
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling typenum v1.20.1
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling futures-channel v0.3.34
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[INFO] [stderr]    Compiling serde v1.0.229
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[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling atomic-waker v1.1.2
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[INFO] [stderr]    Compiling sha1 v0.11.0
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[INFO] [stderr]    Compiling async-executor v1.14.0
[INFO] [stderr]    Compiling kanal v0.1.1
[INFO] [stderr]    Compiling web-time v1.1.0
[INFO] [stderr]    Compiling toml_parser v1.1.3+spec-1.1.0
[INFO] [stderr]    Compiling hyper v1.11.1
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling toml v1.1.6+spec-1.1.0
[INFO] [stderr]    Compiling config v0.15.27
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling thiserror-impl v2.0.21
[INFO] [stderr]    Compiling async-trait v0.1.92
[INFO] [stderr]    Compiling futuresdr-macros v0.9.0
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling tungstenite v0.30.0
[INFO] [stderr]    Compiling vmcircbuffer v0.0.15
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.23
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling futuredsp v0.9.0
[INFO] [stderr]    Compiling rustfft v6.4.1
[INFO] [stderr]    Compiling futuresdr-types v0.9.0
[INFO] [stderr]    Compiling async-net v2.0.0
[INFO] [stderr]    Compiling tower v0.5.3
[INFO] [stderr]    Compiling futures v0.3.34
[INFO] [stderr]    Compiling async-tungstenite v0.35.0
[INFO] [stderr]    Compiling axum v0.8.9
[INFO] [stderr]    Compiling futuresdr v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(return_type_notation)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futuresdr` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca", kill_on_drop: false }`
[INFO] [stdout] 8af62659b19ba105cc39b3c3adf35592ebf4fd98a70a28a49e7cf7202e9af6ca
