[INFO] fetching crate custom-labels 0.4.4...
[INFO] testing custom-labels-0.4.4 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate custom-labels 0.4.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate custom-labels 0.4.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate custom-labels 0.4.4
[INFO] tweaked toml for crates.io crate custom-labels 0.4.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate custom-labels 0.4.4 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 custom-labels 0.4.4 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2c09a83b7de192712b7c9f2ccc58d179730b2f76082f1effa2161c58b3ae89bf
[INFO] running `Command { std: "docker" "start" "-a" "2c09a83b7de192712b7c9f2ccc58d179730b2f76082f1effa2161c58b3ae89bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c09a83b7de192712b7c9f2ccc58d179730b2f76082f1effa2161c58b3ae89bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c09a83b7de192712b7c9f2ccc58d179730b2f76082f1effa2161c58b3ae89bf", kill_on_drop: false }`
[INFO] [stdout] 2c09a83b7de192712b7c9f2ccc58d179730b2f76082f1effa2161c58b3ae89bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f12dbe9f5ab7aa6e8147c6e1a671eaf344aaeb9185fe14e2d0003fc6ce51db4e
[INFO] running `Command { std: "docker" "start" "-a" "f12dbe9f5ab7aa6e8147c6e1a671eaf344aaeb9185fe14e2d0003fc6ce51db4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling bindgen v0.70.1
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]    Compiling libloading v0.8.8
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling custom-labels v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.07s
[INFO] running `Command { std: "docker" "inspect" "f12dbe9f5ab7aa6e8147c6e1a671eaf344aaeb9185fe14e2d0003fc6ce51db4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12dbe9f5ab7aa6e8147c6e1a671eaf344aaeb9185fe14e2d0003fc6ce51db4e", kill_on_drop: false }`
[INFO] [stdout] f12dbe9f5ab7aa6e8147c6e1a671eaf344aaeb9185fe14e2d0003fc6ce51db4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e32ce17c578f26e629c8e4432e0e2b9cd861f3ee3a7b6922a22cd0e82f029acb
[INFO] running `Command { std: "docker" "start" "-a" "e32ce17c578f26e629c8e4432e0e2b9cd861f3ee3a7b6922a22cd0e82f029acb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.8.8
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling bindgen v0.70.1
[INFO] [stderr]    Compiling custom-labels v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 15.10s
[INFO] running `Command { std: "docker" "inspect" "e32ce17c578f26e629c8e4432e0e2b9cd861f3ee3a7b6922a22cd0e82f029acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32ce17c578f26e629c8e4432e0e2b9cd861f3ee3a7b6922a22cd0e82f029acb", kill_on_drop: false }`
[INFO] [stdout] e32ce17c578f26e629c8e4432e0e2b9cd861f3ee3a7b6922a22cd0e82f029acb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f8496b6e4d58fdff2b2cb04d831809e13a9b40c9a7c6f8d375b9bd656424c135
[INFO] running `Command { std: "docker" "start" "-a" "f8496b6e4d58fdff2b2cb04d831809e13a9b40c9a7c6f8d375b9bd656424c135", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/custom_labels-064abd568bcb9668)
[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 custom_labels
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - asynchronous::Label::with_labels (line 496) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - asynchronous::Label::with_labels (line 496) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `i` in this scope
[INFO] [stdout]  --> src/lib.rs:500:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | labelset.extend(i);
[INFO] [stdout]   |                 ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - asynchronous::Label::with_labels (line 496)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f8496b6e4d58fdff2b2cb04d831809e13a9b40c9a7c6f8d375b9bd656424c135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8496b6e4d58fdff2b2cb04d831809e13a9b40c9a7c6f8d375b9bd656424c135", kill_on_drop: false }`
[INFO] [stdout] f8496b6e4d58fdff2b2cb04d831809e13a9b40c9a7c6f8d375b9bd656424c135