[INFO] fetching crate nclosure 0.1.0...
[INFO] testing nclosure-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate nclosure 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate nclosure 0.1.0
[INFO] finished tweaking crates.io crate nclosure 0.1.0
[INFO] tweaked toml for crates.io crate nclosure 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nclosure 0.1.0 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-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] 02bf18649bf51ea4660d1d4f56739cd8a67bd0a783552e7d6ed9146410666a59
[INFO] running `Command { std: "docker" "start" "-a" "02bf18649bf51ea4660d1d4f56739cd8a67bd0a783552e7d6ed9146410666a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02bf18649bf51ea4660d1d4f56739cd8a67bd0a783552e7d6ed9146410666a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02bf18649bf51ea4660d1d4f56739cd8a67bd0a783552e7d6ed9146410666a59", kill_on_drop: false }`
[INFO] [stdout] 02bf18649bf51ea4660d1d4f56739cd8a67bd0a783552e7d6ed9146410666a59
[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] e68e4218f888b92d8edba8eecabcaea459ad463c16ab50748350494c6cfaa45d
[INFO] running `Command { std: "docker" "start" "-a" "e68e4218f888b92d8edba8eecabcaea459ad463c16ab50748350494c6cfaa45d", kill_on_drop: false }`
[INFO] [stderr]    Compiling chain-trans v1.0.0
[INFO] [stderr]    Compiling nclosure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "e68e4218f888b92d8edba8eecabcaea459ad463c16ab50748350494c6cfaa45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e68e4218f888b92d8edba8eecabcaea459ad463c16ab50748350494c6cfaa45d", kill_on_drop: false }`
[INFO] [stdout] e68e4218f888b92d8edba8eecabcaea459ad463c16ab50748350494c6cfaa45d
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d4bebbaa802ebd6d093c389f558783393ae65705fd373754b75d55c8352768c
[INFO] running `Command { std: "docker" "start" "-a" "7d4bebbaa802ebd6d093c389f558783393ae65705fd373754b75d55c8352768c", kill_on_drop: false }`
[INFO] [stderr]    Compiling nclosure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "7d4bebbaa802ebd6d093c389f558783393ae65705fd373754b75d55c8352768c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4bebbaa802ebd6d093c389f558783393ae65705fd373754b75d55c8352768c", kill_on_drop: false }`
[INFO] [stdout] 7d4bebbaa802ebd6d093c389f558783393ae65705fd373754b75d55c8352768c
[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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5122fcaed3f4c61ec5370d533aa41561531110a97dadfe03193f349a3ff309d5
[INFO] running `Command { std: "docker" "start" "-a" "5122fcaed3f4c61ec5370d533aa41561531110a97dadfe03193f349a3ff309d5", 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/nclosure-25e3c3ad71028da6)
[INFO] [stderr]    Doc-tests nclosure
[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] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![cfg_attr(doc, feature(doc_auto_cfg))]
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 1 previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --color auto --crate-name nclosure --test src/lib.rs --test-run-directory /opt/rustwide/workdir -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern chain_trans=/opt/rustwide/target/debug/deps/libchain_trans-f55f5bc6048369a0.rlib --extern nclosure=/opt/rustwide/target/debug/deps/libnclosure-253894cb08f987fd.rlib -C embed-bitcode=no --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "std"))' --cap-lints=warn --error-format human` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --no-capture to the harness.
[INFO] running `Command { std: "docker" "inspect" "5122fcaed3f4c61ec5370d533aa41561531110a97dadfe03193f349a3ff309d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5122fcaed3f4c61ec5370d533aa41561531110a97dadfe03193f349a3ff309d5", kill_on_drop: false }`
[INFO] [stdout] 5122fcaed3f4c61ec5370d533aa41561531110a97dadfe03193f349a3ff309d5
