[INFO] fetching crate watto 0.2.0...
[INFO] testing watto-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate watto 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate watto 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate watto 0.2.0
[INFO] tweaked toml for crates.io crate watto 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate watto 0.2.0 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 11 packages to latest compatible versions
[INFO] [stderr]       Adding hashbrown v0.15.5 (available: v0.16.0)
[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-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] 9db380a6f486fd7f5f0d92a09b443c13f5640351bcff383a37149f6dd696d000
[INFO] running `Command { std: "docker" "start" "-a" "9db380a6f486fd7f5f0d92a09b443c13f5640351bcff383a37149f6dd696d000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9db380a6f486fd7f5f0d92a09b443c13f5640351bcff383a37149f6dd696d000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db380a6f486fd7f5f0d92a09b443c13f5640351bcff383a37149f6dd696d000", kill_on_drop: false }`
[INFO] [stdout] 9db380a6f486fd7f5f0d92a09b443c13f5640351bcff383a37149f6dd696d000
[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] d74680bc0751a8e18feadc45b92d24e8cb6fe875ac6a4b05e0e347a69e218b9c
[INFO] running `Command { std: "docker" "start" "-a" "d74680bc0751a8e18feadc45b92d24e8cb6fe875ac6a4b05e0e347a69e218b9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling watto v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "d74680bc0751a8e18feadc45b92d24e8cb6fe875ac6a4b05e0e347a69e218b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d74680bc0751a8e18feadc45b92d24e8cb6fe875ac6a4b05e0e347a69e218b9c", kill_on_drop: false }`
[INFO] [stdout] d74680bc0751a8e18feadc45b92d24e8cb6fe875ac6a4b05e0e347a69e218b9c
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58cf08e7fdac6470de75ec4a2b73c62d81cf41cf8436082152eb7b2bb43dbb0d
[INFO] running `Command { std: "docker" "start" "-a" "58cf08e7fdac6470de75ec4a2b73c62d81cf41cf8436082152eb7b2bb43dbb0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling watto v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "58cf08e7fdac6470de75ec4a2b73c62d81cf41cf8436082152eb7b2bb43dbb0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58cf08e7fdac6470de75ec4a2b73c62d81cf41cf8436082152eb7b2bb43dbb0d", kill_on_drop: false }`
[INFO] [stdout] 58cf08e7fdac6470de75ec4a2b73c62d81cf41cf8436082152eb7b2bb43dbb0d
[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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 78a5f82eba2236fa1ff6ee18a26e665ee6bdea1946a7fc74589052775c7fbc4d
[INFO] running `Command { std: "docker" "start" "-a" "78a5f82eba2236fa1ff6ee18a26e665ee6bdea1946a7fc74589052775c7fbc4d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/watto-84b1f9cde70b90ac)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-63b440f0cbcde6ff)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_align_to ... ok
[INFO] [stdout] test test_ref ... ok
[INFO] [stdout] test test_slice ... ok
[INFO] [stdout] test test_slice_from_prefix ... ok
[INFO] [stdout] test test_ref_from_prefix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests watto
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 27) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 27) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Writer` in `watto`
[INFO] [stdout]   --> src/lib.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 32 | let mut writer = watto::Writer::new(vec![]);
[INFO] [stdout]    |                         ^^^^^^ could not find `Writer` in `watto`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 27)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "78a5f82eba2236fa1ff6ee18a26e665ee6bdea1946a7fc74589052775c7fbc4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a5f82eba2236fa1ff6ee18a26e665ee6bdea1946a7fc74589052775c7fbc4d", kill_on_drop: false }`
[INFO] [stdout] 78a5f82eba2236fa1ff6ee18a26e665ee6bdea1946a7fc74589052775c7fbc4d