[INFO] fetching crate libyaml 0.2.0...
[INFO] testing libyaml-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate libyaml 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate libyaml 0.2.0
[INFO] finished tweaking crates.io crate libyaml 0.2.0
[INFO] tweaked toml for crates.io crate libyaml 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libyaml 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] crate crates.io crate libyaml 0.2.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1793f9a8180eac102b9f047ff0a89ffc1ccd9a1fd04b273a7a34c1a411fe6539
[INFO] running `Command { std: "docker" "start" "-a" "1793f9a8180eac102b9f047ff0a89ffc1ccd9a1fd04b273a7a34c1a411fe6539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1793f9a8180eac102b9f047ff0a89ffc1ccd9a1fd04b273a7a34c1a411fe6539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1793f9a8180eac102b9f047ff0a89ffc1ccd9a1fd04b273a7a34c1a411fe6539", kill_on_drop: false }`
[INFO] [stdout] 1793f9a8180eac102b9f047ff0a89ffc1ccd9a1fd04b273a7a34c1a411fe6539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9d52b1ba8b48671befc9fc001cfef3537024002a1850e8ac6375a3df00f4de54
[INFO] running `Command { std: "docker" "start" "-a" "9d52b1ba8b48671befc9fc001cfef3537024002a1850e8ac6375a3df00f4de54", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.2
[INFO] [stderr]    Compiling libyaml v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "9d52b1ba8b48671befc9fc001cfef3537024002a1850e8ac6375a3df00f4de54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d52b1ba8b48671befc9fc001cfef3537024002a1850e8ac6375a3df00f4de54", kill_on_drop: false }`
[INFO] [stdout] 9d52b1ba8b48671befc9fc001cfef3537024002a1850e8ac6375a3df00f4de54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6f6f101d8c6b9029a5dc54eb854efcac1bfba62bd375509a73ceb9ecede548d1
[INFO] running `Command { std: "docker" "start" "-a" "6f6f101d8c6b9029a5dc54eb854efcac1bfba62bd375509a73ceb9ecede548d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libyaml v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "6f6f101d8c6b9029a5dc54eb854efcac1bfba62bd375509a73ceb9ecede548d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f6f101d8c6b9029a5dc54eb854efcac1bfba62bd375509a73ceb9ecede548d1", kill_on_drop: false }`
[INFO] [stdout] 6f6f101d8c6b9029a5dc54eb854efcac1bfba62bd375509a73ceb9ecede548d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6c52bd0af76fc719a5ffa39d2e8fcb6fd0929dd36defcdef0bffbf3b725eed78
[INFO] running `Command { std: "docker" "start" "-a" "6c52bd0af76fc719a5ffa39d2e8fcb6fd0929dd36defcdef0bffbf3b725eed78", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libyaml-b8fa5ea52f3f2bcb)
[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]    Doc-tests libyaml
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 29) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 29) stdout ----
[INFO] [stdout] error[E0063]: missing fields `tags` and `version` in initializer of `libyaml::Event`
[INFO] [stdout]   --> src/lib.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 12 | emitter.emit(Event::DocumentStart { implicit: true })?;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^ missing `tags` and `version`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0063`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 29)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6c52bd0af76fc719a5ffa39d2e8fcb6fd0929dd36defcdef0bffbf3b725eed78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c52bd0af76fc719a5ffa39d2e8fcb6fd0929dd36defcdef0bffbf3b725eed78", kill_on_drop: false }`
[INFO] [stdout] 6c52bd0af76fc719a5ffa39d2e8fcb6fd0929dd36defcdef0bffbf3b725eed78