[INFO] cloning repository https://github.com/MOZGIII/netsound
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MOZGIII/netsound" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMOZGIII%2Fnetsound", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMOZGIII%2Fnetsound'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4be69407a2286d8c74aaf2e5e88127cee566325c
[INFO] documenting MOZGIII/netsound against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMOZGIII%2Fnetsound" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MOZGIII/netsound on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-11/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/MOZGIII/netsound
[INFO] finished tweaking git repo https://github.com/MOZGIII/netsound
[INFO] tweaked toml for git repo https://github.com/MOZGIII/netsound written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/MOZGIII/netsound already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog-scope-futures v0.1.1
[INFO] [stderr]   Downloaded dasp_window v0.11.0
[INFO] [stderr]   Downloaded slog-env-cfg v0.6.0
[INFO] [stderr]   Downloaded futures-test v0.3.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] cb5c9871a9913f4090b064fd45a9c63a8c4a96bd444359a9579901e73a001fdf
[INFO] running `Command { std: "docker" "start" "-a" "cb5c9871a9913f4090b064fd45a9c63a8c4a96bd444359a9579901e73a001fdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb5c9871a9913f4090b064fd45a9c63a8c4a96bd444359a9579901e73a001fdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5c9871a9913f4090b064fd45a9c63a8c4a96bd444359a9579901e73a001fdf", kill_on_drop: false }`
[INFO] [stdout] cb5c9871a9913f4090b064fd45a9c63a8c4a96bd444359a9579901e73a001fdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 9c3609d0dc4fa7b83282e65745207bce89a1d9bb95810e1064926ca8f06bc6fd
[INFO] running `Command { std: "docker" "start" "-a" "9c3609d0dc4fa7b83282e65745207bce89a1d9bb95810e1064926ca8f06bc6fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking arc-swap v1.2.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking dasp_ring_buffer v0.11.0
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling cpal v0.13.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking dasp_frame v0.11.0
[INFO] [stderr]     Checking dasp_window v0.11.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking anyhow v1.0.38
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling audiopus_sys v0.1.8
[INFO] [stderr]     Checking slog-scope v4.4.0
[INFO] [stderr]     Checking slog-stdlog v4.1.0
[INFO] [stderr]     Checking slog-scope-futures v0.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dasp_peak v0.11.0
[INFO] [stderr]     Checking dasp_rms v0.11.0
[INFO] [stderr]     Checking dasp_interpolate v0.11.0
[INFO] [stderr]     Checking audiopus v0.2.0
[INFO] [stderr]     Checking dasp_envelope v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking dasp_signal v0.11.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking slog-async v2.6.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking slog-term v2.8.0
[INFO] [stderr]     Checking slog-envlogger v2.2.0
[INFO] [stderr]     Checking alsa v0.4.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling slog_derive v0.2.0
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.63
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking slog-env-cfg v0.6.0
[INFO] [stderr]     Checking netsound-core v0.1.0 (/opt/rustwide/workdir/netsound-core)
[INFO] [stderr]  Documenting netsound-core v0.1.0 (/opt/rustwide/workdir/netsound-core)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> netsound-core/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> netsound-core/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> netsound-core/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `netsound-core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name netsound_core netsound-core/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=31f98496c6643c3f -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-4157d843ebbebce6.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-87ac888948c3d630.so --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-668f32590da73eff.rmeta --extern dasp_frame=/opt/rustwide/target/debug/deps/libdasp_frame-cf1d175273dd0f10.rmeta --extern dasp_interpolate=/opt/rustwide/target/debug/deps/libdasp_interpolate-37102b00b06f93c0.rmeta --extern dasp_sample=/opt/rustwide/target/debug/deps/libdasp_sample-953fe0560defe92e.rmeta --extern dasp_signal=/opt/rustwide/target/debug/deps/libdasp_signal-9b77991b2e3eee23.rmeta --extern derivative=/opt/rustwide/target/debug/deps/libderivative-8663a8c1f0b53cd7.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-06befe38bb04084e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-1c09844c56c35948.rmeta --extern slog=/opt/rustwide/target/debug/deps/libslog-940b331028295da8.rmeta --extern slog_env_cfg=/opt/rustwide/target/debug/deps/libslog_env_cfg-1080a8dff5438543.rmeta --extern slog_scope=/opt/rustwide/target/debug/deps/libslog_scope-9274988ceb83776c.rmeta --extern slog_scope_futures=/opt/rustwide/target/debug/deps/libslog_scope_futures-d5579301529cb2de.rmeta --extern slog_derive=/opt/rustwide/target/debug/deps/libslog_derive-0e164e5c464ca576.so --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-6479d82ef3446c55.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-76e961f0485a3772.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `netsound-core` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "9c3609d0dc4fa7b83282e65745207bce89a1d9bb95810e1064926ca8f06bc6fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3609d0dc4fa7b83282e65745207bce89a1d9bb95810e1064926ca8f06bc6fd", kill_on_drop: false }`
[INFO] [stdout] 9c3609d0dc4fa7b83282e65745207bce89a1d9bb95810e1064926ca8f06bc6fd