[INFO] fetching crate linear-sim 0.6.9...
[INFO] testing linear-sim-0.6.9 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate linear-sim 0.6.9 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate linear-sim 0.6.9
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate linear-sim 0.6.9
[INFO] tweaked toml for crates.io crate linear-sim 0.6.9 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate linear-sim 0.6.9 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate linear-sim 0.6.9 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5293d90678f066b7f507b5a6b88001614d36637e20a377a7bc3cf517c4fd528
[INFO] running `Command { std: "docker" "start" "-a" "c5293d90678f066b7f507b5a6b88001614d36637e20a377a7bc3cf517c4fd528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5293d90678f066b7f507b5a6b88001614d36637e20a377a7bc3cf517c4fd528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5293d90678f066b7f507b5a6b88001614d36637e20a377a7bc3cf517c4fd528", kill_on_drop: false }`
[INFO] [stdout] c5293d90678f066b7f507b5a6b88001614d36637e20a377a7bc3cf517c4fd528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 572bf8bbc2b1f0c7a9bed709f84fd07db48906279386b4a79d23ef72ecc49caa
[INFO] running `Command { std: "docker" "start" "-a" "572bf8bbc2b1f0c7a9bed709f84fd07db48906279386b4a79d23ef72ecc49caa", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling fixed v1.29.0
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bytemuck v1.23.1
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling sorted-vec v0.8.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling stdext v0.3.3
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling stash-derive-serdes v0.1.6
[INFO] [stderr]    Compiling nsys-rs-utils v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nsys-rs-utils-0.2.2/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(decl_macro)]
[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 `nsys-rs-utils` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "572bf8bbc2b1f0c7a9bed709f84fd07db48906279386b4a79d23ef72ecc49caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "572bf8bbc2b1f0c7a9bed709f84fd07db48906279386b4a79d23ef72ecc49caa", kill_on_drop: false }`
[INFO] [stdout] 572bf8bbc2b1f0c7a9bed709f84fd07db48906279386b4a79d23ef72ecc49caa