[INFO] fetching crate rmk 0.0.5...
[INFO] testing rmk-0.0.5 against 1.75.0 for beta-1.76-1
[INFO] extracting crate rmk 0.0.5 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rmk 0.0.5 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 rmk 0.0.5
[INFO] finished tweaking crates.io crate rmk 0.0.5
[INFO] tweaked toml for crates.io crate rmk 0.0.5 written to /workspace/builds/worker-5-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 usbd-hid-descriptors v0.1.2
[INFO] [stderr]   Downloaded usbd-hid-macros v0.6.0
[INFO] [stderr]   Downloaded linked_list_allocator v0.10.5
[INFO] [stderr]   Downloaded embedded-storage v0.3.1
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded usbd-hid v0.6.1
[INFO] [stderr]   Downloaded embedded-alloc v0.5.1
[INFO] [stderr]   Downloaded rtic-common v1.0.0
[INFO] [stderr]   Downloaded ssmarshal v1.0.0
[INFO] [stderr]   Downloaded rtic-time v1.2.0
[INFO] [stderr]   Downloaded rtic-monotonics v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 075d0d14a2e14d274838f71c9fe5af17d56490528afba8f2e244a314f62c659d
[INFO] running `Command { std: "docker" "start" "-a" "075d0d14a2e14d274838f71c9fe5af17d56490528afba8f2e244a314f62c659d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "075d0d14a2e14d274838f71c9fe5af17d56490528afba8f2e244a314f62c659d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "075d0d14a2e14d274838f71c9fe5af17d56490528afba8f2e244a314f62c659d", kill_on_drop: false }`
[INFO] [stdout] 075d0d14a2e14d274838f71c9fe5af17d56490528afba8f2e244a314f62c659d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 274bf63784e859084bc3a9d1e99a9351928230f6fec6dfdd2bf1e7add91b2206
[INFO] running `Command { std: "docker" "start" "-a" "274bf63784e859084bc3a9d1e99a9351928230f6fec6dfdd2bf1e7add91b2206", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling atomic-polyfill v1.0.3
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling rtic-common v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling rtic-monotonics v1.4.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling usbd-hid-descriptors v0.1.2
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling packed_struct v0.10.1
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stderr]    Compiling usb-device v0.2.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling embedded-hal v1.0.0-rc.3
[INFO] [stderr]    Compiling fugit v0.3.7
[INFO] [stderr]    Compiling linked_list_allocator v0.10.5
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling embedded-alloc v0.5.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling rtic-time v1.2.0
[INFO] [stderr]    Compiling ssmarshal v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.1
[INFO] [stderr]    Compiling num_enum v0.7.1
[INFO] [stderr]    Compiling usbd-hid-macros v0.6.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling packed_struct_codegen v0.10.1
[INFO] [stderr]    Compiling usbd-hid v0.6.1
[INFO] [stderr]    Compiling rmk v0.0.5 (/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(type_alias_impl_trait)]
[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 `rmk` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "274bf63784e859084bc3a9d1e99a9351928230f6fec6dfdd2bf1e7add91b2206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274bf63784e859084bc3a9d1e99a9351928230f6fec6dfdd2bf1e7add91b2206", kill_on_drop: false }`
[INFO] [stdout] 274bf63784e859084bc3a9d1e99a9351928230f6fec6dfdd2bf1e7add91b2206
[INFO] testing rmk-0.0.5 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate rmk 0.0.5 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate rmk 0.0.5 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmk 0.0.5
[INFO] finished tweaking crates.io crate rmk 0.0.5
[INFO] tweaked toml for crates.io crate rmk 0.0.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58cebed5f5579aefdd470fa6f510f4184f5e111de171ce4ea71a002acc22b757
[INFO] running `Command { std: "docker" "start" "-a" "58cebed5f5579aefdd470fa6f510f4184f5e111de171ce4ea71a002acc22b757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58cebed5f5579aefdd470fa6f510f4184f5e111de171ce4ea71a002acc22b757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58cebed5f5579aefdd470fa6f510f4184f5e111de171ce4ea71a002acc22b757", kill_on_drop: false }`
[INFO] [stdout] 58cebed5f5579aefdd470fa6f510f4184f5e111de171ce4ea71a002acc22b757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cdc3afef4d06170582a8ee43d328e7ef94952b3b363bc26b6a92a1295723da9
[INFO] running `Command { std: "docker" "start" "-a" "5cdc3afef4d06170582a8ee43d328e7ef94952b3b363bc26b6a92a1295723da9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling atomic-polyfill v1.0.3
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling rtic-common v1.0.0
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling packed_struct v0.10.1
[INFO] [stderr]    Compiling rtic-monotonics v1.4.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling usbd-hid-descriptors v0.1.2
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling fugit v0.3.7
[INFO] [stderr]    Compiling embedded-hal v1.0.0-rc.3
[INFO] [stderr]    Compiling usb-device v0.2.9
[INFO] [stderr]    Compiling linked_list_allocator v0.10.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling embedded-alloc v0.5.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling rtic-time v1.2.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.1
[INFO] [stderr]    Compiling ssmarshal v1.0.0
[INFO] [stderr]    Compiling num_enum v0.7.1
[INFO] [stderr]    Compiling packed_struct_codegen v0.10.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling usbd-hid-macros v0.6.0
[INFO] [stderr]    Compiling usbd-hid v0.6.1
[INFO] [stderr]    Compiling rmk v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `rmk` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5cdc3afef4d06170582a8ee43d328e7ef94952b3b363bc26b6a92a1295723da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cdc3afef4d06170582a8ee43d328e7ef94952b3b363bc26b6a92a1295723da9", kill_on_drop: false }`
[INFO] [stdout] 5cdc3afef4d06170582a8ee43d328e7ef94952b3b363bc26b6a92a1295723da9
