[INFO] fetching crate radix-colors-derive 0.1.2...
[INFO] testing radix-colors-derive-0.1.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate radix-colors-derive 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate radix-colors-derive 0.1.2
[INFO] finished tweaking crates.io crate radix-colors-derive 0.1.2
[INFO] tweaked toml for crates.io crate radix-colors-derive 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate radix-colors-derive 0.1.2 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate radix-colors-derive 0.1.2 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.38
[INFO] [stderr]   Downloaded itoa v1.0.14
[INFO] [stderr]   Downloaded ryu v1.0.18
[INFO] [stderr]   Downloaded serde_derive v1.0.216
[INFO] [stderr]   Downloaded memchr v2.7.4
[INFO] [stderr]   Downloaded serde v1.0.216
[INFO] [stderr]   Downloaded serde_json v1.0.134
[INFO] [stderr]   Downloaded proc-macro2 v1.0.92
[INFO] [stderr]   Downloaded unicode-ident v1.0.14
[INFO] [stderr]   Downloaded syn v2.0.91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6ea65c07d89efdb7a168debe67d8819546756541b57b56b7ccdc7d8760bc31a
[INFO] running `Command { std: "docker" "start" "-a" "e6ea65c07d89efdb7a168debe67d8819546756541b57b56b7ccdc7d8760bc31a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6ea65c07d89efdb7a168debe67d8819546756541b57b56b7ccdc7d8760bc31a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6ea65c07d89efdb7a168debe67d8819546756541b57b56b7ccdc7d8760bc31a", kill_on_drop: false }`
[INFO] [stdout] e6ea65c07d89efdb7a168debe67d8819546756541b57b56b7ccdc7d8760bc31a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1613c31bafcebe4a43d1169d30905c930e46262ce1ed5d50ad8fb0c0d05b551
[INFO] running `Command { std: "docker" "start" "-a" "f1613c31bafcebe4a43d1169d30905c930e46262ce1ed5d50ad8fb0c0d05b551", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling serde_json v1.0.134
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling radix-colors-derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_expand)]
[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 `radix-colors-derive` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f1613c31bafcebe4a43d1169d30905c930e46262ce1ed5d50ad8fb0c0d05b551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1613c31bafcebe4a43d1169d30905c930e46262ce1ed5d50ad8fb0c0d05b551", kill_on_drop: false }`
[INFO] [stdout] f1613c31bafcebe4a43d1169d30905c930e46262ce1ed5d50ad8fb0c0d05b551