[INFO] cloning repository https://github.com/hexqnt/argmin-lbfgs-autodiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hexqnt/argmin-lbfgs-autodiff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhexqnt%2Fargmin-lbfgs-autodiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhexqnt%2Fargmin-lbfgs-autodiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9831e50e62767770e9e898e2d476e1cc99fc09b
[INFO] testing hexqnt/argmin-lbfgs-autodiff against 1.98.0-beta.1 for beta-1.98-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhexqnt%2Fargmin-lbfgs-autodiff" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/hexqnt/argmin-lbfgs-autodiff
[INFO] finished tweaking git repo https://github.com/hexqnt/argmin-lbfgs-autodiff
[INFO] tweaked toml for git repo https://github.com/hexqnt/argmin-lbfgs-autodiff written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hexqnt/argmin-lbfgs-autodiff on toolchain 1.98.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hexqnt/argmin-lbfgs-autodiff 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" "+1.98.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7
[INFO] running `Command { std: "docker" "start" "df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7", 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" "df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7", 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" "df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling web-time v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling rand_xoshiro v0.7.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling argmin-math v0.5.1
[INFO] [stderr]    Compiling argmin v0.11.0
[INFO] [stderr]    Compiling regression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(autodiff)]
[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 `regression` (bin "regression") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7", kill_on_drop: false }`
[INFO] [stdout] df6413fa56c1a9b255bb5da797ed3734d7b1f50f2b9ac726cedb4e40985e9fa7
