[INFO] fetching crate bl602-sdk 0.0.6...
[INFO] testing bl602-sdk-0.0.6 against 1.54.0 for beta-1.55-1
[INFO] extracting crate bl602-sdk 0.0.6 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate bl602-sdk 0.0.6 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bl602-sdk 0.0.6
[INFO] finished tweaking crates.io crate bl602-sdk 0.0.6
[INFO] tweaked toml for crates.io crate bl602-sdk 0.0.6 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f91e76483cea5c4847c8b1033bcb35f1f79f1e04b8553a520ab0eb2a71c9a67
[INFO] running `Command { std: "docker" "start" "-a" "1f91e76483cea5c4847c8b1033bcb35f1f79f1e04b8553a520ab0eb2a71c9a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f91e76483cea5c4847c8b1033bcb35f1f79f1e04b8553a520ab0eb2a71c9a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f91e76483cea5c4847c8b1033bcb35f1f79f1e04b8553a520ab0eb2a71c9a67", kill_on_drop: false }`
[INFO] [stdout] 1f91e76483cea5c4847c8b1033bcb35f1f79f1e04b8553a520ab0eb2a71c9a67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0118628cd3bb1b40ba69db701987ef479a7abc704ef93597d05cf46ed0d114e5
[INFO] running `Command { std: "docker" "start" "-a" "0118628cd3bb1b40ba69db701987ef479a7abc704ef93597d05cf46ed0d114e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling heapless v0.7.4
[INFO] [stderr]    Compiling cty v0.2.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling cstr_core v0.2.4
[INFO] [stderr]    Compiling bl602-macros v0.0.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bl602-macros-0.0.2/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | #![feature(proc_macro_span)]  //  Allow use of spans in Procedural Macros
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bl602-macros`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0118628cd3bb1b40ba69db701987ef479a7abc704ef93597d05cf46ed0d114e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0118628cd3bb1b40ba69db701987ef479a7abc704ef93597d05cf46ed0d114e5", kill_on_drop: false }`
[INFO] [stdout] 0118628cd3bb1b40ba69db701987ef479a7abc704ef93597d05cf46ed0d114e5
