[INFO] fetching crate rtl-sdr-rs 0.3.1...
[INFO] testing rtl-sdr-rs-0.3.1 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate rtl-sdr-rs 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rtl-sdr-rs 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rtl-sdr-rs 0.3.1
[INFO] tweaked toml for crates.io crate rtl-sdr-rs 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rtl-sdr-rs 0.3.1 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rtl-sdr-rs 0.3.1 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded normalize-line-endings v0.3.0
[INFO] [stderr]   Downloaded float-cmp v0.9.0
[INFO] [stderr]   Downloaded ctrlc v3.5.2
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] 83fecbfdd01f30977f639a579de76d42362b581b910b6cfe4693919770c0c15c
[INFO] running `Command { std: "docker" "start" "-a" "83fecbfdd01f30977f639a579de76d42362b581b910b6cfe4693919770c0c15c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.23
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[INFO] [stderr]    Compiling fragile v2.0.1
[INFO] [stderr]    Compiling libusb1-sys v0.7.0
[INFO] [stderr]    Compiling downcast v0.11.0
[INFO] [stderr]    Compiling float-cmp v0.9.0
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[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling predicates v2.1.5
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]    Compiling mockall v0.11.4
[INFO] [stderr]    Compiling rtl-sdr-rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `fir` is never read
[INFO] [stdout]   --> src/rtlsdr.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct RtlSdr {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fir: [i32; FIR_LEN],
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RtlSdr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/tuners/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct TunerInfo {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 15 |     pub id: &'static str,
[INFO] [stdout] 16 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TunerInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.25s
[INFO] running `Command { std: "docker" "inspect" "83fecbfdd01f30977f639a579de76d42362b581b910b6cfe4693919770c0c15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83fecbfdd01f30977f639a579de76d42362b581b910b6cfe4693919770c0c15c", kill_on_drop: false }`
[INFO] [stdout] 83fecbfdd01f30977f639a579de76d42362b581b910b6cfe4693919770c0c15c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d54e8d30a63c703563738c03b4d78aa55c5fdc802ed49a95c739b330a5aa7eb1
[INFO] running `Command { std: "docker" "start" "-a" "d54e8d30a63c703563738c03b4d78aa55c5fdc802ed49a95c739b330a5aa7eb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling zmij v1.0.20
[INFO] [stderr]    Compiling nix v0.31.1
[INFO] [stderr]    Compiling float-cmp v0.9.0
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[INFO] [stderr]    Compiling chrono v0.4.43
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling predicates v2.1.5
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling mockall v0.11.4
[INFO] [stderr]    Compiling clap v4.5.57
[INFO] [stderr]    Compiling libusb1-sys v0.7.0
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling stderrlog v0.5.4
[INFO] [stderr]    Compiling rusb v0.9.4
[INFO] [stderr]    Compiling rtl-sdr-rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `fir` is never read
[INFO] [stdout]   --> src/rtlsdr.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct RtlSdr {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fir: [i32; FIR_LEN],
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RtlSdr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/tuners/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct TunerInfo {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 15 |     pub id: &'static str,
[INFO] [stdout] 16 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TunerInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zerocopy-derive v0.8.39
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling ctrlc v3.5.2
[INFO] [stderr]    Compiling zerocopy v0.8.39
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> examples/simple_fm.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |             let n = f.read(&mut buf[..]).expect("failed to read");
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/simple_fm.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         tx.send(buf.to_vec());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let _ = tx.send(buf.to_vec());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/simple_fm.rs:436:5
[INFO] [stdout]     |
[INFO] [stdout] 436 |     out.write_all(slice_u8);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 436 |     let _ = out.write_all(slice_u8);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/simple_fm.rs:437:5
[INFO] [stdout]     |
[INFO] [stdout] 437 |     out.flush();
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 437 |     let _ = out.flush();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UsbSelector` is never used
[INFO] [stdout]   --> src/device/device_handle.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum UsbSelector<'a> {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeviceHandle` is never constructed
[INFO] [stdout]   --> src/device/device_handle.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct DeviceHandle {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/device/device_handle.rs:23:12
[INFO] [stdout]     |
[INFO] [stdout]  22 | impl DeviceHandle {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout]  23 |     pub fn open(device_id: DeviceId) -> Result<Self> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  37 |     fn open_from_usb(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |     pub fn open_device_with_fd<T: UsbContext>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn claim_interface(&mut self, iface: u8) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn reset(&mut self) -> Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn read_control(
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn write_control(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn read_bulk(&self, endpoint: u8, buf: &mut [u8], timeout: Duration) -> Result<usize> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn get_usb_strings(&self) -> Result<(Option<String>, Option<String>, Option<String>)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fir` is never read
[INFO] [stdout]   --> src/rtlsdr.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct RtlSdr {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fir: [i32; FIR_LEN],
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RtlSdr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/tuners/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct TunerInfo {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 15 |     pub id: &'static str,
[INFO] [stdout] 16 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TunerInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 23.00s
[INFO] running `Command { std: "docker" "inspect" "d54e8d30a63c703563738c03b4d78aa55c5fdc802ed49a95c739b330a5aa7eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54e8d30a63c703563738c03b4d78aa55c5fdc802ed49a95c739b330a5aa7eb1", kill_on_drop: false }`
[INFO] [stdout] d54e8d30a63c703563738c03b4d78aa55c5fdc802ed49a95c739b330a5aa7eb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1865be1772760d1368998bc9af69c3cb56af8562e88b9a80cb4f5c49c072e979
[INFO] running `Command { std: "docker" "start" "-a" "1865be1772760d1368998bc9af69c3cb56af8562e88b9a80cb4f5c49c072e979", kill_on_drop: false }`
[INFO] [stderr] warning: field `fir` is never read
[INFO] [stderr]   --> src/rtlsdr.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct RtlSdr {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 43 |     fir: [i32; FIR_LEN],
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `RtlSdr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]   --> src/tuners/mod.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct TunerInfo {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] 15 |     pub id: &'static str,
[INFO] [stderr] 16 |     pub name: &'static str,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TunerInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `rtl-sdr-rs` (lib) generated 2 warnings
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> examples/simple_fm.rs:78:17
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let n = f.read(&mut buf[..]).expect("failed to read");
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/simple_fm.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         tx.send(buf.to_vec());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let _ = tx.send(buf.to_vec());
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/simple_fm.rs:436:5
[INFO] [stderr]     |
[INFO] [stderr] 436 |     out.write_all(slice_u8);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 436 |     let _ = out.write_all(slice_u8);
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/simple_fm.rs:437:5
[INFO] [stderr]     |
[INFO] [stderr] 437 |     out.flush();
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 437 |     let _ = out.flush();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: enum `UsbSelector` is never used
[INFO] [stderr]   --> src/device/device_handle.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 | enum UsbSelector<'a> {
[INFO] [stderr]    |      ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DeviceHandle` is never constructed
[INFO] [stderr]   --> src/device/device_handle.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub struct DeviceHandle {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/device/device_handle.rs:23:12
[INFO] [stderr]     |
[INFO] [stderr]  22 | impl DeviceHandle {
[INFO] [stderr]     | ----------------- associated items in this implementation
[INFO] [stderr]  23 |     pub fn open(device_id: DeviceId) -> Result<Self> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr]  37 |     fn open_from_usb(
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  97 |     pub fn open_device_with_fd<T: UsbContext>(
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 123 |     pub fn claim_interface(&mut self, iface: u8) -> Result<()> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 126 |     pub fn reset(&mut self) -> Result<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 130 |     pub fn read_control(
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 144 |     pub fn write_control(
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 158 |     pub fn read_bulk(&self, endpoint: u8, buf: &mut [u8], timeout: Duration) -> Result<usize> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 162 |     pub fn get_usb_strings(&self) -> Result<(Option<String>, Option<String>, Option<String>)> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `fir` is never read
[INFO] [stderr]   --> src/rtlsdr.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct RtlSdr {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 43 |     fir: [i32; FIR_LEN],
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `RtlSdr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `rtl-sdr-rs` (example "simple_fm") generated 4 warnings (run `cargo fix --example "simple_fm" -p rtl-sdr-rs` to apply 1 suggestion)
[INFO] [stderr] warning: `rtl-sdr-rs` (lib test) generated 5 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rtl_sdr_rs-0fca2f8e025a1719)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test device::device_test::test_device_id_enum_variants ... ok
[INFO] [stdout] test device::device_test::test_read_eeprom_larger_buffer ... ok
[INFO] [stdout] test device::device_test::test_read_reg_u8 ... ok
[INFO] [stdout] test device::device_test::test_read_eeprom_partial_read ... ok
[INFO] [stdout] test device::device_test::test_read_eeprom_reads_expected_data ... ok
[INFO] [stdout] test device::device_test::test_usb_strings_delegates_to_handle ... ok
[INFO] [stdout] test device::device_test::test_write_reg_u16 ... ok
[INFO] [stdout] test device::device_test::test_read_reg_u16 ... ok
[INFO] [stdout] test device::device_test::test_demod_read_reg ... ok
[INFO] [stdout] test device::device_test::test_write_reg_u8 ... ok
[INFO] [stdout] test device::device_test::test_read_eeprom_out_of_range - should panic ... ok
[INFO] [stdout] test device::device_test::test_read_eeprom_invalid_offset - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rtl_sdr_rs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1865be1772760d1368998bc9af69c3cb56af8562e88b9a80cb4f5c49c072e979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1865be1772760d1368998bc9af69c3cb56af8562e88b9a80cb4f5c49c072e979", kill_on_drop: false }`
[INFO] [stdout] 1865be1772760d1368998bc9af69c3cb56af8562e88b9a80cb4f5c49c072e979
