[INFO] cloning repository https://github.com/not-matthias/probable-computing-machine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/not-matthias/probable-computing-machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-matthias%2Fprobable-computing-machine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-matthias%2Fprobable-computing-machine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b9c2dd13360dc8adbcc50800521006eb12e5147
[INFO] testing not-matthias/probable-computing-machine against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-matthias%2Fprobable-computing-machine" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/not-matthias/probable-computing-machine
[INFO] finished tweaking git repo https://github.com/not-matthias/probable-computing-machine
[INFO] tweaked toml for git repo https://github.com/not-matthias/probable-computing-machine written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/not-matthias/probable-computing-machine 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 git repo https://github.com/not-matthias/probable-computing-machine 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] [stderr] warning: `crate_type` is deprecated in favor of `crate-type` and will not work in the 2024 edition
[INFO] [stderr] (in the `rust` library target)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a8e06e1cbe8e4770f92ff62f1e3a2f99fa7b607947a1016b5c2de8ca29c3b406
[INFO] running `Command { std: "docker" "start" "-a" "a8e06e1cbe8e4770f92ff62f1e3a2f99fa7b607947a1016b5c2de8ca29c3b406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8e06e1cbe8e4770f92ff62f1e3a2f99fa7b607947a1016b5c2de8ca29c3b406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e06e1cbe8e4770f92ff62f1e3a2f99fa7b607947a1016b5c2de8ca29c3b406", kill_on_drop: false }`
[INFO] [stdout] a8e06e1cbe8e4770f92ff62f1e3a2f99fa7b607947a1016b5c2de8ca29c3b406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a4092fdadb27f0d3426190ee69a96e4a768c01fbc86430b2cb0385655728b957
[INFO] running `Command { std: "docker" "start" "-a" "a4092fdadb27f0d3426190ee69a96e4a768c01fbc86430b2cb0385655728b957", kill_on_drop: false }`
[INFO] [stderr] warning: `crate_type` is deprecated in favor of `crate-type` and will not work in the 2024 edition
[INFO] [stderr] (in the `rust` library target)
[INFO] [stderr]    Compiling probable-computing-machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[no_mangle]` cannot be used on internal language items
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[no_mangle]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 8 | pub extern "C" fn eh_personality() {}
[INFO] [stdout]   | ---------------------------------- should be the internal language item
[INFO] [stdout]   |
[INFO] [stdout]   = note: Rustc requires this item to have a specific mangled name.
[INFO] [stdout]   = note: If you are trying to prevent mangling to ease debugging, many
[INFO] [stdout]   = note: debuggers support a command such as `rbreak rust_eh_personality` to
[INFO] [stdout]   = note: match `.*rust_eh_personality.*` instead of `break rust_eh_personality` on a specific name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `probable-computing-machine` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a4092fdadb27f0d3426190ee69a96e4a768c01fbc86430b2cb0385655728b957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4092fdadb27f0d3426190ee69a96e4a768c01fbc86430b2cb0385655728b957", kill_on_drop: false }`
[INFO] [stdout] a4092fdadb27f0d3426190ee69a96e4a768c01fbc86430b2cb0385655728b957