[INFO] fetching crate sound_flow 0.3.0...
[INFO] checking sound_flow-0.3.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate sound_flow 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate sound_flow 0.3.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.7)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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 enum_delegate_lib v0.2.0
[INFO] [stderr]   Downloaded enum_delegate v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6440a7af8b023389797b3c236d9db024b8602211299c41bf296fcec3dd263c0
[INFO] running `Command { std: "docker" "start" "-a" "d6440a7af8b023389797b3c236d9db024b8602211299c41bf296fcec3dd263c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6440a7af8b023389797b3c236d9db024b8602211299c41bf296fcec3dd263c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6440a7af8b023389797b3c236d9db024b8602211299c41bf296fcec3dd263c0", kill_on_drop: false }`
[INFO] [stdout] d6440a7af8b023389797b3c236d9db024b8602211299c41bf296fcec3dd263c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68700ea7739bc358a913b9edd53e1fc2d56338f90a73d6a88cabf1533a0eadc5
[INFO] running `Command { std: "docker" "start" "-a" "68700ea7739bc358a913b9edd53e1fc2d56338f90a73d6a88cabf1533a0eadc5", kill_on_drop: false }`
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking petgraph v0.6.5
[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_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)]` on by default
[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] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` 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_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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "68700ea7739bc358a913b9edd53e1fc2d56338f90a73d6a88cabf1533a0eadc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68700ea7739bc358a913b9edd53e1fc2d56338f90a73d6a88cabf1533a0eadc5", kill_on_drop: false }`
[INFO] [stdout] 68700ea7739bc358a913b9edd53e1fc2d56338f90a73d6a88cabf1533a0eadc5
[INFO] checking sound_flow-0.3.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate sound_flow 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate sound_flow 0.3.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.7)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 140ef329dd21e686ef2472f70c96d04edc3dfd14b3fe1287feeec6ff7094a75b
[INFO] running `Command { std: "docker" "start" "-a" "140ef329dd21e686ef2472f70c96d04edc3dfd14b3fe1287feeec6ff7094a75b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "140ef329dd21e686ef2472f70c96d04edc3dfd14b3fe1287feeec6ff7094a75b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140ef329dd21e686ef2472f70c96d04edc3dfd14b3fe1287feeec6ff7094a75b", kill_on_drop: false }`
[INFO] [stdout] 140ef329dd21e686ef2472f70c96d04edc3dfd14b3fe1287feeec6ff7094a75b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a4a830652a96928bbff96757f2888f95a73b6f0cb9a686107ab602f5cd54247
[INFO] running `Command { std: "docker" "start" "-a" "1a4a830652a96928bbff96757f2888f95a73b6f0cb9a686107ab602f5cd54247", kill_on_drop: false }`
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking petgraph v0.6.5
[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_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)]` on by default
[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] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` 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_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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "1a4a830652a96928bbff96757f2888f95a73b6f0cb9a686107ab602f5cd54247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a4a830652a96928bbff96757f2888f95a73b6f0cb9a686107ab602f5cd54247", kill_on_drop: false }`
[INFO] [stdout] 1a4a830652a96928bbff96757f2888f95a73b6f0cb9a686107ab602f5cd54247