[INFO] fetching crate dasp-rs 0.2.0...
[INFO] checking dasp-rs-0.2.0 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate dasp-rs 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate dasp-rs 0.2.0
[INFO] finished tweaking crates.io crate dasp-rs 0.2.0
[INFO] tweaked toml for crates.io crate dasp-rs 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dasp-rs 0.2.0 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dasp-rs 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7ebf16647114cfff0bc89159709e4ace7794d2c093db456e8e3a12f8dcfa507
[INFO] running `Command { std: "docker" "start" "-a" "d7ebf16647114cfff0bc89159709e4ace7794d2c093db456e8e3a12f8dcfa507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7ebf16647114cfff0bc89159709e4ace7794d2c093db456e8e3a12f8dcfa507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ebf16647114cfff0bc89159709e4ace7794d2c093db456e8e3a12f8dcfa507", kill_on_drop: false }`
[INFO] [stdout] d7ebf16647114cfff0bc89159709e4ace7794d2c093db456e8e3a12f8dcfa507
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bc78dd9ebaaf946a7859a1cf8ad09aee1e8f7bd99c574942fb475c1f5f1791c
[INFO] running `Command { std: "docker" "start" "-a" "3bc78dd9ebaaf946a7859a1cf8ad09aee1e8f7bd99c574942fb475c1f5f1791c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.181
[INFO] [stderr]    Compiling unicode-ident v1.0.23
[INFO] [stderr]    Compiling zerocopy v0.8.39
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling cc v1.2.55
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling base64ct v1.8.3
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling rustls-pki-types v1.14.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling anyhow v1.0.101
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling der v0.7.10
[INFO] [stderr]    Compiling webpki-root-certs v1.0.6
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling ureq-proto v0.5.3
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]     Checking hound v3.5.1
[INFO] [stderr]    Compiling filetime v0.2.27
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking primal-check v0.3.4
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking lapack-sys v0.14.0
[INFO] [stderr]     Checking cblas-sys v0.1.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling xattr v1.6.1
[INFO] [stderr]     Checking tempfile v3.25.0
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling tar v0.4.44
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling katexit v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking rustfft v6.4.1
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]    Compiling ureq v3.2.0
[INFO] [stderr]    Compiling openblas-build v0.10.14
[INFO] [stderr]    Compiling openblas-src v0.10.14
[INFO] [stderr]     Checking lax v0.17.0
[INFO] [stderr]     Checking ndarray-linalg v0.17.0
[INFO] [stderr]     Checking realfft v3.5.0
[INFO] [stderr]     Checking rubato v0.16.2
[INFO] [stderr]     Checking dasp-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `MelSpectrogramBuilder` is never constructed
[INFO] [stdout]   --> src/features/spectral.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct MelSpectrogramBuilder<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `MelSpectrogramBuilder` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `SpectralBuilder` is never constructed
[INFO] [stdout]    --> src/features/spectral.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct SpectralBuilder<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `SpectralBuilder` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dasp-rs` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/utils/time.rs:320:13
[INFO] [stdout]     |
[INFO] [stdout] 320 |         let mut file = NamedTempFile::new().expect("temp wav");
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `MelSpectrogramBuilder` is never constructed
[INFO] [stdout]   --> src/features/spectral.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct MelSpectrogramBuilder<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `MelSpectrogramBuilder` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `SpectralBuilder` is never constructed
[INFO] [stdout]    --> src/features/spectral.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct SpectralBuilder<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `SpectralBuilder` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dasp-rs` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3bc78dd9ebaaf946a7859a1cf8ad09aee1e8f7bd99c574942fb475c1f5f1791c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc78dd9ebaaf946a7859a1cf8ad09aee1e8f7bd99c574942fb475c1f5f1791c", kill_on_drop: false }`
[INFO] [stdout] 3bc78dd9ebaaf946a7859a1cf8ad09aee1e8f7bd99c574942fb475c1f5f1791c
