[INFO] fetching crate waveform 0.3.2... [INFO] testing waveform-0.3.2 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate waveform 0.3.2 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate waveform 0.3.2 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate waveform 0.3.2 [INFO] finished tweaking crates.io crate waveform 0.3.2 [INFO] tweaked toml for crates.io crate waveform 0.3.2 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 49669232bc3636ed01f8e34fe34b89f15f1e3621ff0e5cb4575531e3b61274e0 [INFO] running `Command { std: "docker" "start" "-a" "49669232bc3636ed01f8e34fe34b89f15f1e3621ff0e5cb4575531e3b61274e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "49669232bc3636ed01f8e34fe34b89f15f1e3621ff0e5cb4575531e3b61274e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49669232bc3636ed01f8e34fe34b89f15f1e3621ff0e5cb4575531e3b61274e0", kill_on_drop: false }` [INFO] [stdout] 49669232bc3636ed01f8e34fe34b89f15f1e3621ff0e5cb4575531e3b61274e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e6e00a685149e45185ad21feae92a087ec1096f0a1188842afe13d19be9b1599 [INFO] running `Command { std: "docker" "start" "-a" "e6e00a685149e45185ad21feae92a087ec1096f0a1188842afe13d19be9b1599", kill_on_drop: false }` [INFO] [stderr] Compiling rlibc v1.0.0 [INFO] [stderr] Compiling waveform v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/multi.rs:46:30 [INFO] [stdout] | [INFO] [stdout] 46 | .insert(*bs, try!(BinnedWaveformRenderer::new(samples, *bs, config))); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/misc.rs:66:102 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 - pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] 66 + pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/misc.rs:92:90 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 92 - pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] 92 + pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/binned.rs:36:127 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 36 - pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] 36 + pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/binned.rs:125:160 [INFO] [stdout] | [INFO] [stdout] 125 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 125 - pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] 125 + pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/multi.rs:30:110 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 30 - pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] 30 + pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/multi.rs:123:164 [INFO] [stdout] | [INFO] [stdout] 123 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 123 - pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] 123 + pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1_is_scalar` [INFO] [stdout] --> src/misc.rs:32:17 [INFO] [stdout] | [INFO] [stdout] 32 | let mut c1_is_scalar = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c1_is_scalar` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2_is_scalar` [INFO] [stdout] --> src/misc.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | let mut c2_is_scalar = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c2_is_scalar` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/misc.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut c1_is_scalar = false; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/misc.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | let mut c2_is_scalar = false; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.62s [INFO] running `Command { std: "docker" "inspect" "e6e00a685149e45185ad21feae92a087ec1096f0a1188842afe13d19be9b1599", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6e00a685149e45185ad21feae92a087ec1096f0a1188842afe13d19be9b1599", kill_on_drop: false }` [INFO] [stdout] e6e00a685149e45185ad21feae92a087ec1096f0a1188842afe13d19be9b1599 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9991b7d4d00ec69ce3d9d3b5a3c906a91d4abe2ad8344b9750a67744d41d1797 [INFO] running `Command { std: "docker" "start" "-a" "9991b7d4d00ec69ce3d9d3b5a3c906a91d4abe2ad8344b9750a67744d41d1797", kill_on_drop: false }` [INFO] [stderr] Compiling waveform v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/multi.rs:46:30 [INFO] [stdout] | [INFO] [stdout] 46 | .insert(*bs, try!(BinnedWaveformRenderer::new(samples, *bs, config))); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/misc.rs:66:102 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 - pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] 66 + pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/misc.rs:92:90 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 92 - pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] 92 + pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/binned.rs:36:127 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 36 - pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] 36 + pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/binned.rs:125:160 [INFO] [stdout] | [INFO] [stdout] 125 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 125 - pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] 125 + pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/multi.rs:30:110 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 30 - pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] 30 + pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/multi.rs:123:164 [INFO] [stdout] | [INFO] [stdout] 123 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 123 - pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] 123 + pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1_is_scalar` [INFO] [stdout] --> src/misc.rs:32:17 [INFO] [stdout] | [INFO] [stdout] 32 | let mut c1_is_scalar = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c1_is_scalar` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2_is_scalar` [INFO] [stdout] --> src/misc.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | let mut c2_is_scalar = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c2_is_scalar` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/misc.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut c1_is_scalar = false; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/misc.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | let mut c2_is_scalar = false; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/multi.rs:46:30 [INFO] [stdout] | [INFO] [stdout] 46 | .insert(*bs, try!(BinnedWaveformRenderer::new(samples, *bs, config))); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/misc.rs:66:102 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 - pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] 66 + pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/misc.rs:92:90 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 92 - pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] 92 + pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/binned.rs:36:127 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 36 - pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] 36 + pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/binned.rs:125:160 [INFO] [stdout] | [INFO] [stdout] 125 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 125 - pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] 125 + pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/multi.rs:30:110 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 30 - pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] 30 + pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/multi.rs:123:164 [INFO] [stdout] | [INFO] [stdout] 123 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 123 - pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] 123 + pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/binned.rs:412:22 [INFO] [stdout] | [INFO] [stdout] 412 | let _test: &(Sync+Send) = 𝔴 [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 412 - let _test: &(Sync+Send) = 𝔴 [INFO] [stdout] 412 + let _test: &(dyn Sync+Send) = 𝔴 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec` [INFO] [stdout] --> examples/multi.rs:85:13 [INFO] [stdout] | [INFO] [stdout] 85 | let mut vec: Vec = [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_vec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/multi.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let mut vec: Vec = [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/multi.rs:178:22 [INFO] [stdout] | [INFO] [stdout] 178 | let _test: &(Sync+Send) = 𝔴 [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 178 - let _test: &(Sync+Send) = 𝔴 [INFO] [stdout] 178 + let _test: &(dyn Sync+Send) = 𝔴 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1_is_scalar` [INFO] [stdout] --> src/misc.rs:32:17 [INFO] [stdout] | [INFO] [stdout] 32 | let mut c1_is_scalar = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c1_is_scalar` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2_is_scalar` [INFO] [stdout] --> src/misc.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | let mut c2_is_scalar = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c2_is_scalar` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec` [INFO] [stdout] --> examples/binned.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | let vec: Vec = [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_vec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/misc.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut c1_is_scalar = false; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/misc.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | let mut c2_is_scalar = false; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.62s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/waveform-317f64b34e68045f) [INFO] running `Command { std: "docker" "inspect" "9991b7d4d00ec69ce3d9d3b5a3c906a91d4abe2ad8344b9750a67744d41d1797", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9991b7d4d00ec69ce3d9d3b5a3c906a91d4abe2ad8344b9750a67744d41d1797", kill_on_drop: false }` [INFO] [stdout] 9991b7d4d00ec69ce3d9d3b5a3c906a91d4abe2ad8344b9750a67744d41d1797 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 82a10cd700c2320e0cb24fb4d861e6f8bd20124db3e91b8d4bbc63f028fd4e9e [INFO] running `Command { std: "docker" "start" "-a" "82a10cd700c2320e0cb24fb4d861e6f8bd20124db3e91b8d4bbc63f028fd4e9e", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] running 4 tests [INFO] [stderr] --> src/multi.rs:46:30 [INFO] [stderr] | [INFO] [stderr] 46 | .insert(*bs, try!(BinnedWaveformRenderer::new(samples, *bs, config))); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/misc.rs:66:102 [INFO] [stderr] | [INFO] [stderr] 66 | pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 66 - pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stderr] 66 + pub fn new(amp_min: f64, amp_max: f64, foreground: Color, background: Color) -> Result> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/misc.rs:92:90 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 92 - pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stderr] 92 + pub fn set_colors(&mut self, background: Color, foreground: Color) -> Result<(), Box> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/binned.rs:36:127 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 36 - pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stderr] 36 + pub fn new(samples: &SampleSequence, bin_size: usize, config: WaveformConfig) -> Result, Box> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/binned.rs:125:160 [INFO] [stderr] | [INFO] [stderr] 125 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 125 - pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stderr] 125 + pub fn render_write(&self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/multi.rs:30:110 [INFO] [stderr] | [INFO] [stderr] 30 | pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 30 - pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stderr] 30 + pub fn new(samples: &SampleSequence, bin_sizes: &[usize], config: WaveformConfig) -> Result> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/multi.rs:123:164 [INFO] [stderr] | [INFO] [stderr] 123 | ..., img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 123 - pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stderr] 123 + pub fn render_write(&mut self, range: TimeRange, offsets: (usize, usize), shape: (usize, usize), img: &mut [u8], full_shape: (usize, usize)) -> Result<(), Box> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c1_is_scalar` [INFO] [stderr] --> src/misc.rs:32:17 [INFO] [stderr] | [INFO] [stderr] 32 | let mut c1_is_scalar = false; [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c1_is_scalar` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c2_is_scalar` [INFO] [stderr] --> src/misc.rs:33:17 [INFO] [stderr] | [INFO] [stderr] 33 | let mut c2_is_scalar = false; [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c2_is_scalar` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/misc.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | let mut c1_is_scalar = false; [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/misc.rs:33:13 [INFO] [stderr] | [INFO] [stderr] 33 | let mut c2_is_scalar = false; [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `waveform` (lib) generated 11 warnings [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/binned.rs:412:22 [INFO] [stderr] | [INFO] [stderr] 412 | let _test: &(Sync+Send) = 𝔴 [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 412 - let _test: &(Sync+Send) = 𝔴 [INFO] [stderr] 412 + let _test: &(dyn Sync+Send) = 𝔴 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/multi.rs:178:22 [INFO] [stderr] | [INFO] [stderr] 178 | let _test: &(Sync+Send) = 𝔴 [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 178 - let _test: &(Sync+Send) = 𝔴 [INFO] [stderr] 178 + let _test: &(dyn Sync+Send) = 𝔴 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `waveform` (lib test) generated 13 warnings (11 duplicates) [INFO] [stderr] warning: unused variable: `vec` [INFO] [stderr] --> examples/multi.rs:85:13 [INFO] [stderr] | [INFO] [stderr] 85 | let mut vec: Vec = [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_vec` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/multi.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | let mut vec: Vec = [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `vec` [INFO] [stderr] --> examples/binned.rs:86:9 [INFO] [stderr] | [INFO] [stderr] 86 | let vec: Vec = [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_vec` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `waveform` (example "multi") generated 2 warnings [INFO] [stderr] warning: `waveform` (example "binned") generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/waveform-317f64b34e68045f) [INFO] [stdout] test multi::tests::markers ... ok [INFO] [stdout] test binned::tests::markers ... ok [INFO] [stdout] test multi::tests::multi ... ok [INFO] [stdout] test binned::tests::render_vec_and_write_eq ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s [INFO] [stdout] [INFO] [stderr] Doc-tests waveform [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" "82a10cd700c2320e0cb24fb4d861e6f8bd20124db3e91b8d4bbc63f028fd4e9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "82a10cd700c2320e0cb24fb4d861e6f8bd20124db3e91b8d4bbc63f028fd4e9e", kill_on_drop: false }` [INFO] [stdout] 82a10cd700c2320e0cb24fb4d861e6f8bd20124db3e91b8d4bbc63f028fd4e9e