[INFO] fetching crate sparreal-macros 0.9.3...
[INFO] testing sparreal-macros-0.9.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate sparreal-macros 0.9.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate sparreal-macros 0.9.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sparreal-macros 0.9.3
[INFO] tweaked toml for crates.io crate sparreal-macros 0.9.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sparreal-macros 0.9.3 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sparreal-macros 0.9.3 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded abi-singleton v0.3.0
[INFO] [stderr]   Downloaded rdrive-macro-utils v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a01d6a5ce65d1f9287bf40cc2827b09f257304d0d31305c9a12b9396aca3feab
[INFO] running `Command { std: "docker" "start" "-a" "a01d6a5ce65d1f9287bf40cc2827b09f257304d0d31305c9a12b9396aca3feab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a01d6a5ce65d1f9287bf40cc2827b09f257304d0d31305c9a12b9396aca3feab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01d6a5ce65d1f9287bf40cc2827b09f257304d0d31305c9a12b9396aca3feab", kill_on_drop: false }`
[INFO] [stdout] a01d6a5ce65d1f9287bf40cc2827b09f257304d0d31305c9a12b9396aca3feab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d37f7fac5b820814019b2587ecd1083caabfc6f8eb805977f876a11abd7947f0
[INFO] running `Command { std: "docker" "start" "-a" "d37f7fac5b820814019b2587ecd1083caabfc6f8eb805977f876a11abd7947f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling rdrive-macro-utils v0.2.1
[INFO] [stderr]    Compiling abi-singleton v0.3.0
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling sparreal-macros v0.9.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `Command { std: "docker" "inspect" "d37f7fac5b820814019b2587ecd1083caabfc6f8eb805977f876a11abd7947f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37f7fac5b820814019b2587ecd1083caabfc6f8eb805977f876a11abd7947f0", kill_on_drop: false }`
[INFO] [stdout] d37f7fac5b820814019b2587ecd1083caabfc6f8eb805977f876a11abd7947f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ff3886e88b7c16cf979a5d196e452ae3e0f52dfdf3d1179ac6752c1c0dbc44b
[INFO] running `Command { std: "docker" "start" "-a" "4ff3886e88b7c16cf979a5d196e452ae3e0f52dfdf3d1179ac6752c1c0dbc44b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling rdrive-macro-utils v0.2.1
[INFO] [stderr]    Compiling abi-singleton v0.3.0
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling sparreal-macros v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/test.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(used_with_arg)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sparreal-macros` (test "test") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4ff3886e88b7c16cf979a5d196e452ae3e0f52dfdf3d1179ac6752c1c0dbc44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff3886e88b7c16cf979a5d196e452ae3e0f52dfdf3d1179ac6752c1c0dbc44b", kill_on_drop: false }`
[INFO] [stdout] 4ff3886e88b7c16cf979a5d196e452ae3e0f52dfdf3d1179ac6752c1c0dbc44b