[INFO] fetching crate sound_flow 0.3.0...
[INFO] checking sound_flow-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate sound_flow 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate sound_flow 0.3.0
[INFO] finished tweaking crates.io crate sound_flow 0.3.0
[INFO] tweaked toml for crates.io crate sound_flow 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sound_flow 0.3.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding petgraph v0.6.5 (available: v0.8.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b84dd51de3ecf5a1ce66723723ec3ee78dc185701ac343c356b10ebfd030fa73
[INFO] running `Command { std: "docker" "start" "-a" "b84dd51de3ecf5a1ce66723723ec3ee78dc185701ac343c356b10ebfd030fa73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b84dd51de3ecf5a1ce66723723ec3ee78dc185701ac343c356b10ebfd030fa73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b84dd51de3ecf5a1ce66723723ec3ee78dc185701ac343c356b10ebfd030fa73", kill_on_drop: false }`
[INFO] [stdout] b84dd51de3ecf5a1ce66723723ec3ee78dc185701ac343c356b10ebfd030fa73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa40d2a842d818ef1284aa58669ed1660bb27c4ef902496d62617920c4ebe645
[INFO] running `Command { std: "docker" "start" "-a" "fa40d2a842d818ef1284aa58669ed1660bb27c4ef902496d62617920c4ebe645", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]     Checking petgraph v0.6.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling enum_delegate_lib v0.2.0
[INFO] [stderr]    Compiling enum_delegate v0.2.0
[INFO] [stderr]     Checking sound_flow v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> tests/graph_validation.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn sockets(&self, config: &Self::Config) -> SocketDescription<Self::Data> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> tests/graph_validation.rs:39:23
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn sockets(&self, config: &Self::Config) -> SocketDescription<Self::Data> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> tests/graph_execution.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn sockets(&self, config: &Self::Config) -> SocketDescription<Self::Data> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> tests/graph_validation.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn sockets(&self, config: &Self::Config) -> SocketDescription<Self::Data> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> tests/graph_execution.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn sockets(&self, config: &Self::Config) -> SocketDescription<Self::Data> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> tests/graph_execution.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn sockets(&self, config: &Self::Config) -> SocketDescription<Self::Data> {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&(), Infallible>
[INFO] [stdout]   --> tests/graph_execution.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[enum_delegate::implement(Node)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `Node` which comes from the expansion of the attribute macro `enum_delegate::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&(), Infallible>
[INFO] [stdout]   --> tests/graph_validation.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[enum_delegate::implement(Node)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `Node` which comes from the expansion of the attribute macro `enum_delegate::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&(), Infallible>
[INFO] [stdout]   --> tests/graph_validation.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[enum_delegate::implement(Node)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `Node` which comes from the expansion of the attribute macro `enum_delegate::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&(), Infallible>
[INFO] [stdout]   --> tests/graph_execution.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[enum_delegate::implement(Node)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `Node` which comes from the expansion of the attribute macro `enum_delegate::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Sockets<'_, Data>, Infallible>
[INFO] [stdout]   --> tests/graph_execution.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[enum_delegate::implement(Node)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `Node` which comes from the expansion of the attribute macro `enum_delegate::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Sockets<'_, Data>, Infallible>
[INFO] [stdout]   --> tests/graph_validation.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[enum_delegate::implement(Node)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `Node` which comes from the expansion of the attribute macro `enum_delegate::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sound_flow` (test "graph_execution") due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `sound_flow` (test "graph_validation") due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "fa40d2a842d818ef1284aa58669ed1660bb27c4ef902496d62617920c4ebe645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa40d2a842d818ef1284aa58669ed1660bb27c4ef902496d62617920c4ebe645", kill_on_drop: false }`
[INFO] [stdout] fa40d2a842d818ef1284aa58669ed1660bb27c4ef902496d62617920c4ebe645