[INFO] fetching crate ripple 0.2.1... [INFO] testing ripple-0.2.1 against 1.60.0 for beta-1.61-1 [INFO] extracting crate ripple 0.2.1 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate ripple 0.2.1 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate ripple 0.2.1 [INFO] finished tweaking crates.io crate ripple 0.2.1 [INFO] tweaked toml for crates.io crate ripple 0.2.1 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded nalgebra v0.28.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.60.0" "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] 5460ea6f7a4a608ba98bd3166852c8e14544d42cb00126f50f2534506aa56b0e [INFO] running `Command { std: "docker" "start" "-a" "5460ea6f7a4a608ba98bd3166852c8e14544d42cb00126f50f2534506aa56b0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5460ea6f7a4a608ba98bd3166852c8e14544d42cb00126f50f2534506aa56b0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5460ea6f7a4a608ba98bd3166852c8e14544d42cb00126f50f2534506aa56b0e", kill_on_drop: false }` [INFO] [stdout] 5460ea6f7a4a608ba98bd3166852c8e14544d42cb00126f50f2534506aa56b0e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6fbba5f7b478c70e589d90b83a6ec0c20aab4835c7b02f06d93c18ed2de0fad8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6fbba5f7b478c70e589d90b83a6ec0c20aab4835c7b02f06d93c18ed2de0fad8", kill_on_drop: false }` [INFO] [stderr] Compiling ripple v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Compiling matrixmultiply v0.3.2 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling approx v0.5.1 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling nalgebra-macros v0.1.0 [INFO] [stdout] warning: function is never used: `try_link_gsl` [INFO] [stdout] --> build.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn try_link_gsl() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling simba v0.5.1 [INFO] [stderr] Compiling nalgebra v0.28.0 [INFO] [stdout] warning: unused import: `simba::scalar::SupersetOf` [INFO] [stdout] --> src/signal/mod.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use simba::scalar::SupersetOf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryFrom` [INFO] [stdout] --> src/signal/mod.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Range` [INFO] [stdout] --> src/signal/mod.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use std::ops::Range; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sz_compl` [INFO] [stdout] --> src/signal/mod.rs:73:13 [INFO] [stdout] | [INFO] [stdout] 73 | let sz_compl = sz - n; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sz_compl` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `max` [INFO] [stdout] --> src/signal/mod.rs:611:13 [INFO] [stdout] | [INFO] [stdout] 611 | let max = T::from(n as f32); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_max` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/signal/mod.rs:60:18 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn delay(mut self, n : usize) -> Self { [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/signal/mod.rs:65:20 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn advance(mut self, n : usize) -> Self { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/signal/mod.rs:256:18 [INFO] [stdout] | [INFO] [stdout] 256 | fn into_iter(mut self) -> Self::IntoIter { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `panic_on_invalid_slices` [INFO] [stdout] --> src/lib.rs:16:15 [INFO] [stdout] | [INFO] [stdout] 16 | pub(crate) fn panic_on_invalid_slices(a : &[A], b : &[B]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `display_as_mat` [INFO] [stdout] --> src/lib.rs:162:15 [INFO] [stdout] | [INFO] [stdout] 162 | pub(crate) fn display_as_mat(s : &[f32], ncols : usize) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `len` [INFO] [stdout] --> src/dwt/mod.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 101 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `coefficients` [INFO] [stdout] --> src/dwt/mod.rs:108:8 [INFO] [stdout] | [INFO] [stdout] 108 | fn coefficients(&self) -> (&'static [f32; 4], &'static [f32; 4]) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dwt_level_index` [INFO] [stdout] --> src/dwt/mod.rs:160:4 [INFO] [stdout] | [INFO] [stdout] 160 | fn dwt_level_index(n : usize, lvl : usize) -> Range { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `verify_dwt_dimensions` [INFO] [stdout] --> src/dwt/mod.rs:165:4 [INFO] [stdout] | [INFO] [stdout] 165 | fn verify_dwt_dimensions(src_len : usize, coarse_len : usize, detail_len : usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `verify_dwt1d_dimensions` [INFO] [stdout] --> src/dwt/mod.rs:173:4 [INFO] [stdout] | [INFO] [stdout] 173 | fn verify_dwt1d_dimensions(src : &[f32], coarse : &[f32], detail : &[f32]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `verify_dwt2d_dimensions` [INFO] [stdout] --> src/dwt/mod.rs:177:4 [INFO] [stdout] | [INFO] [stdout] 177 | fn verify_dwt2d_dimensions(src : &[f32], coarse : &[f32], detail_x : &[f32], detail_y : &[f32], detail_xy : &[f32]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `index_and_prev_mut` [INFO] [stdout] --> src/dwt/mod.rs:192:4 [INFO] [stdout] | [INFO] [stdout] 192 | fn index_and_prev_mut(levels : &mut [T], last : usize) -> (&mut T, &mut T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 02s [INFO] running `Command { std: "docker" "inspect" "6fbba5f7b478c70e589d90b83a6ec0c20aab4835c7b02f06d93c18ed2de0fad8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6fbba5f7b478c70e589d90b83a6ec0c20aab4835c7b02f06d93c18ed2de0fad8", kill_on_drop: false }` [INFO] [stdout] 6fbba5f7b478c70e589d90b83a6ec0c20aab4835c7b02f06d93c18ed2de0fad8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.60.0" "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] 843e997aa28086f4d480f5ca99b0707b43dbdc21ac3aa37067103e6fdb1bc296 [INFO] running `Command { std: "docker" "start" "-a" "843e997aa28086f4d480f5ca99b0707b43dbdc21ac3aa37067103e6fdb1bc296", kill_on_drop: false }` [INFO] [stderr] Compiling ripple v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `try_link_gsl` [INFO] [stdout] --> build.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn try_link_gsl() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `simba::scalar::SupersetOf` [INFO] [stdout] --> src/signal/mod.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use simba::scalar::SupersetOf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryFrom` [INFO] [stdout] --> src/signal/mod.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Range` [INFO] [stdout] --> src/signal/mod.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use std::ops::Range; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sz_compl` [INFO] [stdout] --> src/signal/mod.rs:73:13 [INFO] [stdout] | [INFO] [stdout] 73 | let sz_compl = sz - n; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sz_compl` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `max` [INFO] [stdout] --> src/signal/mod.rs:611:13 [INFO] [stdout] | [INFO] [stdout] 611 | let max = T::from(n as f32); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_max` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/signal/mod.rs:60:18 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn delay(mut self, n : usize) -> Self { [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/signal/mod.rs:65:20 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn advance(mut self, n : usize) -> Self { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/signal/mod.rs:256:18 [INFO] [stdout] | [INFO] [stdout] 256 | fn into_iter(mut self) -> Self::IntoIter { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `panic_on_invalid_slices` [INFO] [stdout] --> src/lib.rs:16:15 [INFO] [stdout] | [INFO] [stdout] 16 | pub(crate) fn panic_on_invalid_slices(a : &[A], b : &[B]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `display_as_mat` [INFO] [stdout] --> src/lib.rs:162:15 [INFO] [stdout] | [INFO] [stdout] 162 | pub(crate) fn display_as_mat(s : &[f32], ncols : usize) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `len` [INFO] [stdout] --> src/dwt/mod.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 101 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `coefficients` [INFO] [stdout] --> src/dwt/mod.rs:108:8 [INFO] [stdout] | [INFO] [stdout] 108 | fn coefficients(&self) -> (&'static [f32; 4], &'static [f32; 4]) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dwt_level_index` [INFO] [stdout] --> src/dwt/mod.rs:160:4 [INFO] [stdout] | [INFO] [stdout] 160 | fn dwt_level_index(n : usize, lvl : usize) -> Range { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `verify_dwt_dimensions` [INFO] [stdout] --> src/dwt/mod.rs:165:4 [INFO] [stdout] | [INFO] [stdout] 165 | fn verify_dwt_dimensions(src_len : usize, coarse_len : usize, detail_len : usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `verify_dwt1d_dimensions` [INFO] [stdout] --> src/dwt/mod.rs:173:4 [INFO] [stdout] | [INFO] [stdout] 173 | fn verify_dwt1d_dimensions(src : &[f32], coarse : &[f32], detail : &[f32]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `verify_dwt2d_dimensions` [INFO] [stdout] --> src/dwt/mod.rs:177:4 [INFO] [stdout] | [INFO] [stdout] 177 | fn verify_dwt2d_dimensions(src : &[f32], coarse : &[f32], detail_x : &[f32], detail_y : &[f32], detail_xy : &[f32]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `index_and_prev_mut` [INFO] [stdout] --> src/dwt/mod.rs:192:4 [INFO] [stdout] | [INFO] [stdout] 192 | fn index_and_prev_mut(levels : &mut [T], last : usize) -> (&mut T, &mut T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `DAUBECHIES` in this scope [INFO] [stdout] --> src/dwt/mod.rs:77:40 [INFO] [stdout] | [INFO] [stdout] 77 | println!("{:?} {:?}", derive_diff(&DAUBECHIES), DAUB4_HIGH); [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `simba::scalar::SupersetOf` [INFO] [stdout] --> src/signal/mod.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use simba::scalar::SupersetOf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryFrom` [INFO] [stdout] --> src/signal/mod.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Range` [INFO] [stdout] --> src/signal/mod.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use std::ops::Range; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stderr] error: could not compile `ripple` due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "843e997aa28086f4d480f5ca99b0707b43dbdc21ac3aa37067103e6fdb1bc296", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "843e997aa28086f4d480f5ca99b0707b43dbdc21ac3aa37067103e6fdb1bc296", kill_on_drop: false }` [INFO] [stdout] 843e997aa28086f4d480f5ca99b0707b43dbdc21ac3aa37067103e6fdb1bc296