[INFO] fetching crate surge-voice 0.2.0-alpha.0...
[INFO] testing surge-voice-0.2.0-alpha.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate surge-voice 0.2.0-alpha.0 into /workspace/builds/worker-58/source
[INFO] validating manifest of crates.io crate surge-voice 0.2.0-alpha.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate surge-voice 0.2.0-alpha.0
[INFO] finished tweaking crates.io crate surge-voice 0.2.0-alpha.0
[INFO] tweaked toml for crates.io crate surge-voice 0.2.0-alpha.0 written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protobuf v2.27.1
[INFO] [stderr]   Downloaded surgeosc-fm v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surgeosc-wavetable v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surgeosc-window v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surgeosc-snh v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surge-midi v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surgeosc-fm2 v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surgeosc-super v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surge-adsr v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surge-lfo v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surge-mpe v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surgeosc-audioin v0.2.0-alpha.0
[INFO] [stderr]   Downloaded surge-modulation v0.2.0-alpha.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64e3abaa8c9679cabf6593bdd3809686a1ed0932a67d189ca06690dc7332b740
[INFO] running `Command { std: "docker" "start" "-a" "64e3abaa8c9679cabf6593bdd3809686a1ed0932a67d189ca06690dc7332b740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64e3abaa8c9679cabf6593bdd3809686a1ed0932a67d189ca06690dc7332b740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e3abaa8c9679cabf6593bdd3809686a1ed0932a67d189ca06690dc7332b740", kill_on_drop: false }`
[INFO] [stdout] 64e3abaa8c9679cabf6593bdd3809686a1ed0932a67d189ca06690dc7332b740
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6230997ff2c6a3f93f8bf97b0dd5e5097ae1dfece4b3854aa9bddd51896b085c
[INFO] running `Command { std: "docker" "start" "-a" "6230997ff2c6a3f93f8bf97b0dd5e5097ae1dfece4b3854aa9bddd51896b085c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling unindent v0.1.8
[INFO] [stderr]    Compiling surge-quadrosc v0.2.0-alpha.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling protobuf v2.27.1
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling surge-hound v0.2.0-alpha.0
[INFO] [stderr]    Compiling prometheus v0.13.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling indoc v1.0.4
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]    Compiling enum_dispatch v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling auto_impl v0.4.1
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling surge-samplerate v0.2.0-alpha.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/surge-samplerate-0.2.0-alpha.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(in_band_lifetimes)]
[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 `surge-samplerate` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6230997ff2c6a3f93f8bf97b0dd5e5097ae1dfece4b3854aa9bddd51896b085c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6230997ff2c6a3f93f8bf97b0dd5e5097ae1dfece4b3854aa9bddd51896b085c", kill_on_drop: false }`
[INFO] [stdout] 6230997ff2c6a3f93f8bf97b0dd5e5097ae1dfece4b3854aa9bddd51896b085c