[INFO] fetching crate strlen 1.0.0...
[INFO] testing strlen-1.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate strlen 1.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate strlen 1.0.0
[INFO] finished tweaking crates.io crate strlen 1.0.0
[INFO] tweaked toml for crates.io crate strlen 1.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate strlen 1.0.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9b97ed4abcc436d4dc6a1ceb9273524badfc6667d16c47f8a2acb6eab0f0a2be
[INFO] running `Command { std: "docker" "start" "-a" "9b97ed4abcc436d4dc6a1ceb9273524badfc6667d16c47f8a2acb6eab0f0a2be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b97ed4abcc436d4dc6a1ceb9273524badfc6667d16c47f8a2acb6eab0f0a2be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b97ed4abcc436d4dc6a1ceb9273524badfc6667d16c47f8a2acb6eab0f0a2be", kill_on_drop: false }`
[INFO] [stdout] 9b97ed4abcc436d4dc6a1ceb9273524badfc6667d16c47f8a2acb6eab0f0a2be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bd1d49698e75eb4db6f7af57d9caa8f3c55e9232301ff81d1200a1c1c1c79f13
[INFO] running `Command { std: "docker" "start" "-a" "bd1d49698e75eb4db6f7af57d9caa8f3c55e9232301ff81d1200a1c1c1c79f13", kill_on_drop: false }`
[INFO] [stderr]    Compiling strlen v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(const_eval_select)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(const_mut_refs)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `const_mut_refs` has been stable since `1.83.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(const_ptr_is_null)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(const_ptr_write)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0631]: type mismatch in function arguments
[INFO] [stdout]   --> src/lib.rs:71:39
[INFO] [stdout]    |
[INFO] [stdout] 52 |     const fn strcpy_ct(dst: *mut u8, src: *const u8) -> *mut u8 {
[INFO] [stdout]    |     ----------------------------------------------------------- found signature defined here
[INFO] [stdout] ...
[INFO] [stdout] 71 |     const_eval_select((dest,source,), strcpy_ct, strcpy_rt)
[INFO] [stdout]    |     -----------------                 ^^^^^^^^^ expected due to this
[INFO] [stdout]    |     |
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected function signature `fn(*mut i8, *const i8) -> _`
[INFO] [stdout]               found function signature `fn(*mut u8, *const u8) -> _`
[INFO] [stdout] note: required by a bound in `const_eval_select`
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/intrinsics/mod.rs:2364:1
[INFO] [stdout] help: consider wrapping the function in a closure
[INFO] [stdout]    |
[INFO] [stdout] 71 |     const_eval_select((dest,source,), |arg0: *mut i8, arg1: *const i8| strcpy_ct(/* *mut u8 */, /* *const u8 */), strcpy_rt)
[INFO] [stdout]    |                                       ++++++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0631.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `strlen` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "bd1d49698e75eb4db6f7af57d9caa8f3c55e9232301ff81d1200a1c1c1c79f13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd1d49698e75eb4db6f7af57d9caa8f3c55e9232301ff81d1200a1c1c1c79f13", kill_on_drop: false }`
[INFO] [stdout] bd1d49698e75eb4db6f7af57d9caa8f3c55e9232301ff81d1200a1c1c1c79f13