[INFO] fetching crate command_attr 0.3.7...
[INFO] testing command_attr-0.3.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate command_attr 0.3.7 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate command_attr 0.3.7 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate command_attr 0.3.7
[INFO] finished tweaking crates.io crate command_attr 0.3.7
[INFO] tweaked toml for crates.io crate command_attr 0.3.7 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0202ea87cb06bd6ff6c85728bc10e2d7c1e766a02e12a2494d8333e424b9bb7
[INFO] running `Command { std: "docker" "start" "-a" "f0202ea87cb06bd6ff6c85728bc10e2d7c1e766a02e12a2494d8333e424b9bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0202ea87cb06bd6ff6c85728bc10e2d7c1e766a02e12a2494d8333e424b9bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0202ea87cb06bd6ff6c85728bc10e2d7c1e766a02e12a2494d8333e424b9bb7", kill_on_drop: false }`
[INFO] [stdout] f0202ea87cb06bd6ff6c85728bc10e2d7c1e766a02e12a2494d8333e424b9bb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0800ca84dd0907b9c9a1d3320869c4de48ce9eaf35a92cba669a68334eda4ddf
[INFO] running `Command { std: "docker" "start" "-a" "0800ca84dd0907b9c9a1d3320869c4de48ce9eaf35a92cba669a68334eda4ddf", kill_on_drop: false }`
[INFO] [stderr]    Compiling command_attr v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.10s
[INFO] running `Command { std: "docker" "inspect" "0800ca84dd0907b9c9a1d3320869c4de48ce9eaf35a92cba669a68334eda4ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0800ca84dd0907b9c9a1d3320869c4de48ce9eaf35a92cba669a68334eda4ddf", kill_on_drop: false }`
[INFO] [stdout] 0800ca84dd0907b9c9a1d3320869c4de48ce9eaf35a92cba669a68334eda4ddf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56ef9070e2a57e76fb0620a4c6e84ee3156e28c9a55b3c7aefaa589ffc7a28ba
[INFO] running `Command { std: "docker" "start" "-a" "56ef9070e2a57e76fb0620a4c6e84ee3156e28c9a55b3c7aefaa589ffc7a28ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling command_attr v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "56ef9070e2a57e76fb0620a4c6e84ee3156e28c9a55b3c7aefaa589ffc7a28ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ef9070e2a57e76fb0620a4c6e84ee3156e28c9a55b3c7aefaa589ffc7a28ba", kill_on_drop: false }`
[INFO] [stdout] 56ef9070e2a57e76fb0620a4c6e84ee3156e28c9a55b3c7aefaa589ffc7a28ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d069c63f3cf7a29989640d9d103cc907fae291d184a11f926237d58d2b75cca6
[INFO] running `Command { std: "docker" "start" "-a" "d069c63f3cf7a29989640d9d103cc907fae291d184a11f926237d58d2b75cca6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/command_attr-02fb1b04193f1a5f)
[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] [stderr] warning: lint `broken_intra_doc_links` has been renamed to `rustdoc::broken_intra_doc_links`
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![deny(broken_intra_doc_links)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::broken_intra_doc_links`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - command (line 96) ... ignored
[INFO] [stdout] test src/lib.rs - group (line 551) ... ignored
[INFO] [stdout] test src/lib.rs - hook (line 844) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - hook (line 822) - compile ... ok
[INFO] [stdout] test src/lib.rs - hook (line 830) - compile ... ok
[INFO] [stdout] test src/lib.rs - hook (line 855) - compile ... ok
[INFO] [stdout] test src/lib.rs - hook (line 870) - 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 stable release channel
[INFO] [stdout]  --> src/lib.rs:844:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "d069c63f3cf7a29989640d9d103cc907fae291d184a11f926237d58d2b75cca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d069c63f3cf7a29989640d9d103cc907fae291d184a11f926237d58d2b75cca6", kill_on_drop: false }`
[INFO] [stdout] d069c63f3cf7a29989640d9d103cc907fae291d184a11f926237d58d2b75cca6