[INFO] cloning repository https://github.com/lucdoebereiner/audiomesh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucdoebereiner/audiomesh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucdoebereiner%2Faudiomesh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucdoebereiner%2Faudiomesh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ac999eb1cb03f41674b39f28e8bc3eebca24a68
[INFO] documenting lucdoebereiner/audiomesh 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%2Flucdoebereiner%2Faudiomesh" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucdoebereiner/audiomesh 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] started tweaking git repo https://github.com/lucdoebereiner/audiomesh
[INFO] finished tweaking git repo https://github.com/lucdoebereiner/audiomesh
[INFO] tweaked toml for git repo https://github.com/lucdoebereiner/audiomesh written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/lucdoebereiner/audiomesh 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/lawliet89/rocket_cors`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] [stdout] c306b3f10b78e4ea1be149b7dc065afde4145335885e0aeb8a0cc47c207e53f9
[INFO] running `Command { std: "docker" "start" "-a" "c306b3f10b78e4ea1be149b7dc065afde4145335885e0aeb8a0cc47c207e53f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c306b3f10b78e4ea1be149b7dc065afde4145335885e0aeb8a0cc47c207e53f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c306b3f10b78e4ea1be149b7dc065afde4145335885e0aeb8a0cc47c207e53f9", kill_on_drop: false }`
[INFO] [stdout] c306b3f10b78e4ea1be149b7dc065afde4145335885e0aeb8a0cc47c207e53f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] [stdout] 09c976dca78deb98242de2670cb9ce311d948ea7fe4624e42f58a2f7e9a377ea
[INFO] running `Command { std: "docker" "start" "-a" "09c976dca78deb98242de2670cb9ce311d948ea7fe4624e42f58a2f7e9a377ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
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[INFO] [stderr]    Compiling libc v0.2.102
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[INFO] [stderr]     Checking futures-io v0.3.17
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[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling once_cell v1.8.0
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[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling inlinable_string v0.1.14
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling state v0.5.2
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking spin v0.9.2
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[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking strum v0.23.0
[INFO] [stderr]     Checking binascii v0.1.4
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling futures-macro v0.3.17
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[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling cookie v0.15.1
[INFO] [stderr]    Compiling tracing-core v0.1.20
[INFO] [stderr]    Compiling instant v0.1.11
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling atomic v0.5.0
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[INFO] [stderr]     Checking libloading v0.6.7
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[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
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[INFO] [stderr]     Checking tracing v0.1.28
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
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[INFO] [stderr]     Checking twoway v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
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[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking jack-sys v0.2.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking jack v0.7.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling http-body v0.4.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling devise_core v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling devise_codegen v0.3.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling strum_macros v0.23.1
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]    Compiling devise v0.3.1
[INFO] [stderr]     Checking pear v0.2.3
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]    Compiling h2 v0.3.4
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ubyte v0.10.1
[INFO] [stderr]     Checking unicase_serde v0.1.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking processgraph v0.1.0 (/opt/rustwide/workdir/processgraph)
[INFO] [stderr]  Documenting processgraph v0.1.0 (/opt/rustwide/workdir/processgraph)
[INFO] [stderr]     Checking hyper v0.14.13
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> processgraph/src/process.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         input: f64,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_level`
[INFO] [stdout]    --> processgraph/src/process.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         input_level: Vec<Process>,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> processgraph/src/process.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 299 |         input: f64,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> processgraph/src/process.rs:305:9
[INFO] [stdout]     |
[INFO] [stdout] 305 |         input: f64,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `freq_mod`
[INFO] [stdout]    --> processgraph/src/process.rs:307:9
[INFO] [stdout]     |
[INFO] [stdout] 307 |         freq_mod: f64,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_freq_mod`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> processgraph/src/process.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 339 |         input: f64,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `range` is never read
[INFO] [stdout]   --> processgraph/src/numerical.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let mut range = 0.;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `connection_default_lag`
[INFO] [stdout]    --> processgraph/src/lib.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn connection_default_lag() -> lag::Lag {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rocket_http v0.5.0-rc.1
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-rc.1
[INFO] [stderr]     Checking rocket_cors v0.5.2 (https://github.com/lawliet89/rocket_cors?branch=master#a062933c)
[INFO] [stderr]  Documenting audiomesh v0.4.0 (/opt/rustwide/workdir/audiomesh)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> audiomesh/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene, decl_macro)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `audiomesh`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name audiomesh audiomesh/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=71ad9e39fa68d96e -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-b6292e6892c9b5ca.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-e6e8f91f0d3cb5f5.rmeta --extern jack=/opt/rustwide/target/debug/deps/libjack-a5aa0e9b194fb32e.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-156e57f62171bafe.rmeta --extern processgraph=/opt/rustwide/target/debug/deps/libprocessgraph-ca6bf27c7ec2a11f.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b2d5b3d7c2ba7770.rmeta --extern rocket=/opt/rustwide/target/debug/deps/librocket-8710cdd510e9821b.rmeta --extern rocket_cors=/opt/rustwide/target/debug/deps/librocket_cors-57eb80b0b825976f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-33d590582d6e323d.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-b4dbad857be2cdb2.rmeta --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "09c976dca78deb98242de2670cb9ce311d948ea7fe4624e42f58a2f7e9a377ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09c976dca78deb98242de2670cb9ce311d948ea7fe4624e42f58a2f7e9a377ea", kill_on_drop: false }`
[INFO] [stdout] 09c976dca78deb98242de2670cb9ce311d948ea7fe4624e42f58a2f7e9a377ea