[INFO] fetching crate credent_cli_model 0.4.1...
[INFO] testing credent_cli_model-0.4.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate credent_cli_model 0.4.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate credent_cli_model 0.4.1
[INFO] finished tweaking crates.io crate credent_cli_model 0.4.1
[INFO] tweaked toml for crates.io crate credent_cli_model 0.4.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate credent_cli_model 0.4.1 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 89 packages to latest compatible versions
[INFO] [stderr]       Adding smol v1.3.0 (available: v2.0.2)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3381dbb29f10737b052d120ccf5f70f83c9667f3184d2e3b97a97e222c711fb1
[INFO] running `Command { std: "docker" "start" "-a" "3381dbb29f10737b052d120ccf5f70f83c9667f3184d2e3b97a97e222c711fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3381dbb29f10737b052d120ccf5f70f83c9667f3184d2e3b97a97e222c711fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3381dbb29f10737b052d120ccf5f70f83c9667f3184d2e3b97a97e222c711fb1", kill_on_drop: false }`
[INFO] [stdout] 3381dbb29f10737b052d120ccf5f70f83c9667f3184d2e3b97a97e222c711fb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 23599204e48a5af7c645baeb2d06514e7af462cf07594c64b15e0e727dd34601
[INFO] running `Command { std: "docker" "start" "-a" "23599204e48a5af7c645baeb2d06514e7af462cf07594c64b15e0e727dd34601", kill_on_drop: false }`
[INFO] [stderr]    Compiling credent_cli_model v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: `credent` needs either the "backend-smol" or "backend-tokio" feature to be enabled.
[INFO] [stdout]   --> src/error.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / compile_error!(
[INFO] [stdout] 11 | |     r#"`credent` needs either the "backend-smol" or "backend-tokio" feature to be enabled."#
[INFO] [stdout] 12 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IoError` in this scope
[INFO] [stdout]   --> src/error.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 |         error: IoError,
[INFO] [stdout]    |                ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IoError` in this scope
[INFO] [stdout]   --> src/error.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |     StdErrFlush(IoError),
[INFO] [stdout]    |                 ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `credent_cli_model` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "23599204e48a5af7c645baeb2d06514e7af462cf07594c64b15e0e727dd34601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23599204e48a5af7c645baeb2d06514e7af462cf07594c64b15e0e727dd34601", kill_on_drop: false }`
[INFO] [stdout] 23599204e48a5af7c645baeb2d06514e7af462cf07594c64b15e0e727dd34601