[INFO] fetching crate notation_midi 0.5.0...
[INFO] testing notation_midi-0.5.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate notation_midi 0.5.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate notation_midi 0.5.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate notation_midi 0.5.0
[INFO] finished tweaking crates.io crate notation_midi 0.5.0
[INFO] tweaked toml for crates.io crate notation_midi 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 954582ddae7085bc236d803928b67454271f72ec4a9509a84a9760781aff3775
[INFO] running `Command { std: "docker" "start" "-a" "954582ddae7085bc236d803928b67454271f72ec4a9509a84a9760781aff3775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "954582ddae7085bc236d803928b67454271f72ec4a9509a84a9760781aff3775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954582ddae7085bc236d803928b67454271f72ec4a9509a84a9760781aff3775", kill_on_drop: false }`
[INFO] [stdout] 954582ddae7085bc236d803928b67454271f72ec4a9509a84a9760781aff3775
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1aef661750a43466466ea6f91b22f1e52ac62d4747ff803a1f46c55d46838616
[INFO] running `Command { std: "docker" "start" "-a" "1aef661750a43466466ea6f91b22f1e52ac62d4747ff803a1f46c55d46838616", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling erased-serde v0.3.20
[INFO] [stderr]    Compiling async-task v4.2.0
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling basedrop v0.1.2
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling memalloc v0.1.0
[INFO] [stderr]    Compiling dmsort v1.0.1
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling tracing-core v0.1.25
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling core-error v0.0.0
[INFO] [stderr]    Compiling ogg v0.8.0
[INFO] [stderr]    Compiling ringbuf v0.2.8
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling midi-msg v0.3.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling lewton v0.10.2
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling fluidlite-sys v0.2.1
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling bevy_tasks v0.6.0
[INFO] [stderr]    Compiling fluidlite v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling alsa v0.4.3
[INFO] [stderr]    Compiling alsa v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.7
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling midir v0.7.0
[INFO] [stderr]    Compiling num_enum v0.5.7
[INFO] [stderr]    Compiling tracing v0.1.33
[INFO] [stderr]    Compiling fehler v1.0.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling helgoboss-midi v0.2.0
[INFO] [stderr]    Compiling cargo-manifest v0.2.6
[INFO] [stderr]    Compiling bevy_macro_utils v0.6.0
[INFO] [stderr]    Compiling bevy_derive v0.6.0
[INFO] [stderr]    Compiling bevy_reflect_derive v0.6.0
[INFO] [stderr]    Compiling bevy_ecs_macros v0.6.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling glam v0.20.5
[INFO] [stderr]    Compiling ron v0.7.0
[INFO] [stderr]    Compiling notation_core v0.5.0
[INFO] [stderr]    Compiling serde_arrays v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling tracing-subscriber v0.3.11
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling notation_fretted v0.5.0
[INFO] [stderr]    Compiling bevy_utils v0.6.0
[INFO] [stderr]    Compiling kira v0.5.3
[INFO] [stderr]    Compiling notation_guitar v0.5.0
[INFO] [stderr]    Compiling notation_proto v0.5.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/notation_proto-0.5.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(arc_new_cyclic)]
[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 `notation_proto` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1aef661750a43466466ea6f91b22f1e52ac62d4747ff803a1f46c55d46838616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aef661750a43466466ea6f91b22f1e52ac62d4747ff803a1f46c55d46838616", kill_on_drop: false }`
[INFO] [stdout] 1aef661750a43466466ea6f91b22f1e52ac62d4747ff803a1f46c55d46838616