[INFO] fetching crate sparreal-macros 0.10.1...
[INFO] checking sparreal-macros-0.10.1 against 1.95.0 for pr-155915
[INFO] extracting crate sparreal-macros 0.10.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate sparreal-macros 0.10.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sparreal-macros 0.10.1
[INFO] tweaked toml for crates.io crate sparreal-macros 0.10.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sparreal-macros 0.10.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sparreal-macros 0.10.1 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" "+1.95.0" "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 v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce36322b340aa3d55663dad1594613e1b84a22852ded6b62102a71c7d14bd834
[INFO] running `Command { std: "docker" "start" "-a" "ce36322b340aa3d55663dad1594613e1b84a22852ded6b62102a71c7d14bd834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce36322b340aa3d55663dad1594613e1b84a22852ded6b62102a71c7d14bd834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce36322b340aa3d55663dad1594613e1b84a22852ded6b62102a71c7d14bd834", kill_on_drop: false }`
[INFO] [stdout] ce36322b340aa3d55663dad1594613e1b84a22852ded6b62102a71c7d14bd834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5c20e956fc502f9bdb1dfdc752f42bb40d83cd65a1396867bcf2b9c54e10d6e
[INFO] running `Command { std: "docker" "start" "-a" "d5c20e956fc502f9bdb1dfdc752f42bb40d83cd65a1396867bcf2b9c54e10d6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking darling_core v0.21.3
[INFO] [stderr]     Checking abi-singleton v0.3.0
[INFO] [stderr]     Checking rdrive-macro-utils v0.3.3
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]     Checking darling v0.21.3
[INFO] [stderr]    Compiling sparreal-macros v0.10.1 (/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] running `Command { std: "docker" "inspect" "d5c20e956fc502f9bdb1dfdc752f42bb40d83cd65a1396867bcf2b9c54e10d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c20e956fc502f9bdb1dfdc752f42bb40d83cd65a1396867bcf2b9c54e10d6e", kill_on_drop: false }`
[INFO] [stdout] d5c20e956fc502f9bdb1dfdc752f42bb40d83cd65a1396867bcf2b9c54e10d6e
