[INFO] cloning repository https://github.com/abgeana/vroom-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abgeana/vroom-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabgeana%2Fvroom-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabgeana%2Fvroom-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fe20a0f1d81bc7945c07488dfe2f97acf2a36b0e [INFO] testing abgeana/vroom-rs against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabgeana%2Fvroom-rs" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/abgeana/vroom-rs 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 git repo https://github.com/abgeana/vroom-rs [INFO] finished tweaking git repo https://github.com/abgeana/vroom-rs [INFO] tweaked toml for git repo https://github.com/abgeana/vroom-rs written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/abgeana/vroom-rs already has a lockfile, it will not be regenerated [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 cast v0.2.6 [INFO] [stderr] Downloaded spidev v0.4.1 [INFO] [stderr] Downloaded i2cdev v0.4.4 [INFO] [stderr] Downloaded embedded-hal v0.2.5 [INFO] [stderr] Downloaded linux-embedded-hal v0.3.0 [INFO] [stderr] Downloaded pwm-pca9685 v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 237a0a5120a51a71bb9e484aa71fc42a8047f7cfc2ede28cda1e83181cbea47f [INFO] running `Command { std: "docker" "start" "-a" "237a0a5120a51a71bb9e484aa71fc42a8047f7cfc2ede28cda1e83181cbea47f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "237a0a5120a51a71bb9e484aa71fc42a8047f7cfc2ede28cda1e83181cbea47f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "237a0a5120a51a71bb9e484aa71fc42a8047f7cfc2ede28cda1e83181cbea47f", kill_on_drop: false }` [INFO] [stdout] 237a0a5120a51a71bb9e484aa71fc42a8047f7cfc2ede28cda1e83181cbea47f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b34fc29a85e3ad9ee761d63bdc5fe2d0573112664282a310247710722fec1c25 [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" "b34fc29a85e3ad9ee761d63bdc5fe2d0573112664282a310247710722fec1c25", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling cc v1.0.68 [INFO] [stderr] Compiling signal-hook v0.3.9 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling array-macro v1.0.5 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling ahash v0.6.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling embedded-hal v0.2.5 [INFO] [stderr] Compiling cast v0.2.6 [INFO] [stderr] Compiling pwm-pca9685 v0.3.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling ncurses v5.101.0 [INFO] [stderr] Compiling num-complex v0.3.1 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling termios v0.2.2 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling ioctl-rs v0.1.6 [INFO] [stderr] Compiling serial-core v0.4.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling term_size v0.3.2 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling serial-unix v0.4.0 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling num v0.3.1 [INFO] [stderr] Compiling simplelog v0.10.0 [INFO] [stderr] Compiling i2cdev v0.4.4 [INFO] [stderr] Compiling spidev v0.4.1 [INFO] [stderr] Compiling sysfs_gpio v0.5.4 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling linux-embedded-hal v0.3.0 [INFO] [stderr] Compiling enum-map-derive v0.4.6 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Compiling enum-map v0.6.4 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling wasmer_enumset_derive v0.5.0 [INFO] [stderr] Compiling wasmer_enumset v1.0.1 [INFO] [stderr] Compiling cursive_core v0.2.2 [INFO] [stderr] Compiling cursive v0.16.3 [INFO] [stderr] Compiling vroom-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `thread`, `time` [INFO] [stdout] --> src/control.rs:9:11 [INFO] [stdout] | [INFO] [stdout] 9 | use std::{thread, time}; [INFO] [stdout] | ^^^^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/servo/mod.rs:25:30 [INFO] [stdout] | [INFO] [stdout] 25 | fn turn_angle(&mut self, mut angle: f64) -> Result<(), Error> { [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: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | pwm0.set_frequency(60); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | pwm1.set_frequency(60); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | servo0.turn_neutral(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | servo1.turn_neutral(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | servo0.turn_angle(angle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | servo1.turn_angle(angle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 27s [INFO] running `Command { std: "docker" "inspect" "b34fc29a85e3ad9ee761d63bdc5fe2d0573112664282a310247710722fec1c25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b34fc29a85e3ad9ee761d63bdc5fe2d0573112664282a310247710722fec1c25", kill_on_drop: false }` [INFO] [stdout] b34fc29a85e3ad9ee761d63bdc5fe2d0573112664282a310247710722fec1c25 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] a3a7d950ed2901e8b2c49e4a9c3f95181888bee31abeb32f4282b8ecbf9c5be0 [INFO] running `Command { std: "docker" "start" "-a" "a3a7d950ed2901e8b2c49e4a9c3f95181888bee31abeb32f4282b8ecbf9c5be0", kill_on_drop: false }` [INFO] [stderr] Compiling vroom-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `thread`, `time` [INFO] [stdout] --> src/control.rs:9:11 [INFO] [stdout] | [INFO] [stdout] 9 | use std::{thread, time}; [INFO] [stdout] | ^^^^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/servo/mod.rs:25:30 [INFO] [stdout] | [INFO] [stdout] 25 | fn turn_angle(&mut self, mut angle: f64) -> Result<(), Error> { [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: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | pwm0.set_frequency(60); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | pwm1.set_frequency(60); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | servo0.turn_neutral(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | servo1.turn_neutral(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | servo0.turn_angle(angle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/control.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | servo1.turn_angle(angle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.21s [INFO] running `Command { std: "docker" "inspect" "a3a7d950ed2901e8b2c49e4a9c3f95181888bee31abeb32f4282b8ecbf9c5be0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3a7d950ed2901e8b2c49e4a9c3f95181888bee31abeb32f4282b8ecbf9c5be0", kill_on_drop: false }` [INFO] [stdout] a3a7d950ed2901e8b2c49e4a9c3f95181888bee31abeb32f4282b8ecbf9c5be0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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", kill_on_drop: false }` [INFO] [stdout] 25b32d1cec916e54698ab27fe93e69cb6191a394a5f7357c023377ffdd59efc2 [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" "25b32d1cec916e54698ab27fe93e69cb6191a394a5f7357c023377ffdd59efc2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/control.rs:9:11 [INFO] [stderr] | [INFO] [stderr] 9 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/servo/mod.rs:25:30 [INFO] [stderr] | [INFO] [stderr] 25 | fn turn_angle(&mut self, mut angle: f64) -> Result<(), Error> { [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 `Result` that must be used [INFO] [stderr] --> src/control.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | pwm0.set_frequency(60); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/control.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | pwm1.set_frequency(60); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/control.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | servo0.turn_neutral(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/control.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | servo1.turn_neutral(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/control.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | servo0.turn_angle(angle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/control.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | servo1.turn_angle(angle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `vroom-rs` (bin "vroom-rs" test) generated 8 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.17s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/vroom_rs-62b424190cf0e2ba) [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" "25b32d1cec916e54698ab27fe93e69cb6191a394a5f7357c023377ffdd59efc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25b32d1cec916e54698ab27fe93e69cb6191a394a5f7357c023377ffdd59efc2", kill_on_drop: false }` [INFO] [stdout] 25b32d1cec916e54698ab27fe93e69cb6191a394a5f7357c023377ffdd59efc2