[INFO] fetching crate microspectrogram 0.1.0...
[INFO] testing microspectrogram-0.1.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate microspectrogram 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate microspectrogram 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate microspectrogram 0.1.0
[INFO] finished tweaking crates.io crate microspectrogram 0.1.0
[INFO] tweaked toml for crates.io crate microspectrogram 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate microspectrogram 0.1.0 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded microfft v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e94ed89c180265e7126201e0e7bd5cfa12c33c86d78665c183776526566a0a9
[INFO] running `Command { std: "docker" "start" "-a" "6e94ed89c180265e7126201e0e7bd5cfa12c33c86d78665c183776526566a0a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e94ed89c180265e7126201e0e7bd5cfa12c33c86d78665c183776526566a0a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e94ed89c180265e7126201e0e7bd5cfa12c33c86d78665c183776526566a0a9", kill_on_drop: false }`
[INFO] [stdout] 6e94ed89c180265e7126201e0e7bd5cfa12c33c86d78665c183776526566a0a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 897a73de704b7951845dddfd87ed799c28222c82aee5c770d484d21e1367667a
[INFO] running `Command { std: "docker" "start" "-a" "897a73de704b7951845dddfd87ed799c28222c82aee5c770d484d21e1367667a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling microfft v0.5.1
[INFO] [stderr]    Compiling microspectrogram v0.1.0 (/opt/rustwide/workdir)
[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(generic_const_exprs)]
[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 `microspectrogram` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "897a73de704b7951845dddfd87ed799c28222c82aee5c770d484d21e1367667a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "897a73de704b7951845dddfd87ed799c28222c82aee5c770d484d21e1367667a", kill_on_drop: false }`
[INFO] [stdout] 897a73de704b7951845dddfd87ed799c28222c82aee5c770d484d21e1367667a
[INFO] testing microspectrogram-0.1.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate microspectrogram 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate microspectrogram 0.1.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate microspectrogram 0.1.0
[INFO] finished tweaking crates.io crate microspectrogram 0.1.0
[INFO] tweaked toml for crates.io crate microspectrogram 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate microspectrogram 0.1.0 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" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05fc93330b8d5d9e6f3262745ff2c69b08fca1b0b2faab6197a1d653b59b72bd
[INFO] running `Command { std: "docker" "start" "-a" "05fc93330b8d5d9e6f3262745ff2c69b08fca1b0b2faab6197a1d653b59b72bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05fc93330b8d5d9e6f3262745ff2c69b08fca1b0b2faab6197a1d653b59b72bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05fc93330b8d5d9e6f3262745ff2c69b08fca1b0b2faab6197a1d653b59b72bd", kill_on_drop: false }`
[INFO] [stdout] 05fc93330b8d5d9e6f3262745ff2c69b08fca1b0b2faab6197a1d653b59b72bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6756516f9c93122cc881ebcf4a233a8a16c15ffdf843c5b64a2b8420cd6d8418
[INFO] running `Command { std: "docker" "start" "-a" "6756516f9c93122cc881ebcf4a233a8a16c15ffdf843c5b64a2b8420cd6d8418", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling microfft v0.5.1
[INFO] [stderr]    Compiling microspectrogram v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generic_const_exprs)]
[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 `microspectrogram` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6756516f9c93122cc881ebcf4a233a8a16c15ffdf843c5b64a2b8420cd6d8418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6756516f9c93122cc881ebcf4a233a8a16c15ffdf843c5b64a2b8420cd6d8418", kill_on_drop: false }`
[INFO] [stdout] 6756516f9c93122cc881ebcf4a233a8a16c15ffdf843c5b64a2b8420cd6d8418
