[INFO] fetching crate bl602-sdk 0.0.6...
[INFO] testing bl602-sdk-0.0.6 against 1.75.0 for beta-1.76-1
[INFO] extracting crate bl602-sdk 0.0.6 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate bl602-sdk 0.0.6 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bl602-macros v0.0.2
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.3
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded heapless v0.7.17
[INFO] [stderr]   Downloaded cstr_core v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 070404e873f438084c6e8e929185cca59daca7e7653adba4a4e735876dbf7adf
[INFO] running `Command { std: "docker" "start" "-a" "070404e873f438084c6e8e929185cca59daca7e7653adba4a4e735876dbf7adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "070404e873f438084c6e8e929185cca59daca7e7653adba4a4e735876dbf7adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070404e873f438084c6e8e929185cca59daca7e7653adba4a4e735876dbf7adf", kill_on_drop: false }`
[INFO] [stdout] 070404e873f438084c6e8e929185cca59daca7e7653adba4a4e735876dbf7adf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 847bcb8a85d86938412e8a8d3212ec42f26f852a789055da9dfa2bdaee9f6dd0
[INFO] running `Command { std: "docker" "start" "-a" "847bcb8a85d86938412e8a8d3212ec42f26f852a789055da9dfa2bdaee9f6dd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling cstr_core v0.2.6
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling spin v0.9.8
[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/index.crates.io-6f17d22bba15001f/bl602-macros-0.0.2/src/lib.rs:21:12
[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` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "847bcb8a85d86938412e8a8d3212ec42f26f852a789055da9dfa2bdaee9f6dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "847bcb8a85d86938412e8a8d3212ec42f26f852a789055da9dfa2bdaee9f6dd0", kill_on_drop: false }`
[INFO] [stdout] 847bcb8a85d86938412e8a8d3212ec42f26f852a789055da9dfa2bdaee9f6dd0
