[INFO] fetching crate ambiq-hal 0.2.0...
[INFO] testing ambiq-hal-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate ambiq-hal 0.2.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate ambiq-hal 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-19/source/.cargo/config.toml
[INFO] started tweaking crates.io crate ambiq-hal 0.2.0
[INFO] finished tweaking crates.io crate ambiq-hal 0.2.0
[INFO] tweaked toml for crates.io crate ambiq-hal 0.2.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate ambiq-hal 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-time v0.12.1
[INFO] [stderr]   Downloaded env_logger v0.8.4
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.6
[INFO] [stderr]   Downloaded defmt v0.3.0
[INFO] [stderr]   Downloaded num v0.3.1
[INFO] [stderr]   Downloaded num-complex v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.103
[INFO] [stderr]   Downloaded clang-sys v1.2.2
[INFO] [stderr]   Downloaded libloading v0.7.0
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.0
[INFO] [stderr]   Downloaded cortex-m v0.7.3
[INFO] [stderr]   Downloaded cexpr v0.5.0
[INFO] [stderr]   Downloaded defmt-parser v0.3.0
[INFO] [stderr]   Downloaded paste v1.0.5
[INFO] [stderr]   Downloaded bindgen v0.59.1
[INFO] [stderr]   Downloaded ufmt-macros v0.1.1
[INFO] [stderr]   Downloaded cc v1.0.70
[INFO] [stderr]   Downloaded ufmt v0.1.0
[INFO] [stderr]   Downloaded defmt-macros v0.3.0
[INFO] [stderr]   Downloaded ambiq-hal-sys v0.1.0
[INFO] [stderr]   Downloaded ambiq-apollo3-pac2 v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd4235283265a0ebac9c41dad18aafb6618dcca9b4e7681b53ff520729a9f506
[INFO] running `Command { std: "docker" "start" "-a" "fd4235283265a0ebac9c41dad18aafb6618dcca9b4e7681b53ff520729a9f506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd4235283265a0ebac9c41dad18aafb6618dcca9b4e7681b53ff520729a9f506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd4235283265a0ebac9c41dad18aafb6618dcca9b4e7681b53ff520729a9f506", kill_on_drop: false }`
[INFO] [stdout] fd4235283265a0ebac9c41dad18aafb6618dcca9b4e7681b53ff520729a9f506
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1940de3b1ba78cc6e7e4802405d472275c0273da7383913ba0eaec1765823ec6
[INFO] running `Command { std: "docker" "start" "-a" "1940de3b1ba78cc6e7e4802405d472275c0273da7383913ba0eaec1765823ec6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling defmt-macros v0.3.0
[INFO] [stderr]    Compiling defmt-parser v0.3.0
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling defmt v0.3.0
[INFO] [stderr]    Compiling ambiq-apollo3-pac2 v0.2.0
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling embedded-time v0.12.1
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]    Compiling ufmt v0.1.0
[INFO] [stderr]    Compiling ambiq-hal v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(adt_const_params)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_fn_trait_bound)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ambiq-hal` due to 4 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1940de3b1ba78cc6e7e4802405d472275c0273da7383913ba0eaec1765823ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1940de3b1ba78cc6e7e4802405d472275c0273da7383913ba0eaec1765823ec6", kill_on_drop: false }`
[INFO] [stdout] 1940de3b1ba78cc6e7e4802405d472275c0273da7383913ba0eaec1765823ec6