[INFO] fetching crate command_attr 0.5.4...
[INFO] testing command_attr-0.5.4 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate command_attr 0.5.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate command_attr 0.5.4
[INFO] finished tweaking crates.io crate command_attr 0.5.4
[INFO] tweaked toml for crates.io crate command_attr 0.5.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate command_attr 0.5.4 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate command_attr 0.5.4 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 300e0bff29367c5fe83f7fc5ea185d6a48ed5609b8554a5879488a3042e8f579
[INFO] running `Command { std: "docker" "start" "-a" "300e0bff29367c5fe83f7fc5ea185d6a48ed5609b8554a5879488a3042e8f579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "300e0bff29367c5fe83f7fc5ea185d6a48ed5609b8554a5879488a3042e8f579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300e0bff29367c5fe83f7fc5ea185d6a48ed5609b8554a5879488a3042e8f579", kill_on_drop: false }`
[INFO] [stdout] 300e0bff29367c5fe83f7fc5ea185d6a48ed5609b8554a5879488a3042e8f579
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e48d1a7d8f7460b5130aeac0eaed77c037be5dd98d225cf1e33681149f272991
[INFO] running `Command { std: "docker" "start" "-a" "e48d1a7d8f7460b5130aeac0eaed77c037be5dd98d225cf1e33681149f272991", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling command_attr v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.06s
[INFO] running `Command { std: "docker" "inspect" "e48d1a7d8f7460b5130aeac0eaed77c037be5dd98d225cf1e33681149f272991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e48d1a7d8f7460b5130aeac0eaed77c037be5dd98d225cf1e33681149f272991", kill_on_drop: false }`
[INFO] [stdout] e48d1a7d8f7460b5130aeac0eaed77c037be5dd98d225cf1e33681149f272991
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d36fdb06ced5d81769029cf09f3eb9a34f7064006a9e4a0c80daa22fc7f5e21
[INFO] running `Command { std: "docker" "start" "-a" "6d36fdb06ced5d81769029cf09f3eb9a34f7064006a9e4a0c80daa22fc7f5e21", kill_on_drop: false }`
[INFO] [stderr]    Compiling command_attr v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "6d36fdb06ced5d81769029cf09f3eb9a34f7064006a9e4a0c80daa22fc7f5e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d36fdb06ced5d81769029cf09f3eb9a34f7064006a9e4a0c80daa22fc7f5e21", kill_on_drop: false }`
[INFO] [stdout] 6d36fdb06ced5d81769029cf09f3eb9a34f7064006a9e4a0c80daa22fc7f5e21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2a616e0ab3420cbdeace2230faa816853d2d7681b1a6b2bcf6f06d6b4fc8b621
[INFO] running `Command { std: "docker" "start" "-a" "2a616e0ab3420cbdeace2230faa816853d2d7681b1a6b2bcf6f06d6b4fc8b621", 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/command_attr-256debf02a6b9ab5)
[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 command_attr
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - command (line 91) ... ignored
[INFO] [stdout] test src/lib.rs - group (line 547) ... ignored
[INFO] [stdout] test src/lib.rs - hook (line 853) - compile ... ok
[INFO] [stdout] test src/lib.rs - hook (line 864) - compile ... ok
[INFO] [stdout] test src/lib.rs - hook (line 844) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - hook (line 824) - compile ... ok
[INFO] [stdout] test src/lib.rs - hook (line 832) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - hook (line 844) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:844:1
[INFO] [stdout]     |
[INFO] [stdout] 844 | #![feature(async_closure)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]     |
[INFO] [stdout]     = help: the feature `async_closure` has been stable since `1.85.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_closure` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:844:12
[INFO] [stdout]     |
[INFO] [stdout] 844 | #![feature(async_closure)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - hook (line 844)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 1 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2a616e0ab3420cbdeace2230faa816853d2d7681b1a6b2bcf6f06d6b4fc8b621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a616e0ab3420cbdeace2230faa816853d2d7681b1a6b2bcf6f06d6b4fc8b621", kill_on_drop: false }`
[INFO] [stdout] 2a616e0ab3420cbdeace2230faa816853d2d7681b1a6b2bcf6f06d6b4fc8b621
