[INFO] cloning repository https://github.com/Jojograndjojo/rustythingy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jojograndjojo/rustythingy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJojograndjojo%2Frustythingy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJojograndjojo%2Frustythingy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1969d40a49da8c7531825e97daf052a3d9062cf
[INFO] testing Jojograndjojo/rustythingy against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJojograndjojo%2Frustythingy" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jojograndjojo/rustythingy on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jojograndjojo/rustythingy
[INFO] finished tweaking git repo https://github.com/Jojograndjojo/rustythingy
[INFO] tweaked toml for git repo https://github.com/Jojograndjojo/rustythingy written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Jojograndjojo/rustythingy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55e7ce03d4b47740f9bba55bd1cb936aa3fdac89003c68b225fe84b7afce72c3
[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" "55e7ce03d4b47740f9bba55bd1cb936aa3fdac89003c68b225fe84b7afce72c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55e7ce03d4b47740f9bba55bd1cb936aa3fdac89003c68b225fe84b7afce72c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55e7ce03d4b47740f9bba55bd1cb936aa3fdac89003c68b225fe84b7afce72c3", kill_on_drop: false }`
[INFO] [stdout] 55e7ce03d4b47740f9bba55bd1cb936aa3fdac89003c68b225fe84b7afce72c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 375416548a9809558a6f93ccb8ad343a0ba038fc93d7d13f186d1de338c5d573
[INFO] running `Command { std: "docker" "start" "-a" "375416548a9809558a6f93ccb8ad343a0ba038fc93d7d13f186d1de338c5d573", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling itoa v0.4.3
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[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling httparse v1.3.3
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[INFO] [stderr]    Compiling tokio-current-thread v0.1.4
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[INFO] [stderr]    Compiling parking_lot_core v0.4.0
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[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]    Compiling tokio-fs v0.1.5
[INFO] [stderr]    Compiling tokio v0.1.15
[INFO] [stderr]    Compiling sysfs_gpio v0.5.3
[INFO] [stderr]    Compiling serde_plain v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling hyper v0.12.24
[INFO] [stderr]    Compiling tower-web-macros v0.2.1
[INFO] [stderr]    Compiling tower-web v0.2.2
[INFO] [stderr]    Compiling rustythingy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::pin_mock::PinMockGenerator`
[INFO] [stdout]  --> src/transceiver/transceiver.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::pin_mock::PinMockGenerator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/transceiver/transceiver.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::pin_mock::PinMockGenerator`
[INFO] [stdout]  --> src/sonar/sonar.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::pin_mock::PinMockGenerator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::transceiver_mock::TransceiverMockGenerator`
[INFO] [stdout]  --> src/sonar/sonar.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::transceiver_mock::TransceiverMockGenerator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/sonar/sonar.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `green_light_pin`
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let green_light_pin = Pin::new(GREEN_LIGHT_PIN);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_green_light_pin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `green_light_pin_value` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut green_light_pin_value;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_green_light_pin_value` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `green_light_pin_value` is never read
[INFO] [stdout]   --> src/main.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 green_light_pin_value = 0;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `green_light_pin_value` is never read
[INFO] [stdout]   --> src/main.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 green_light_pin_value = 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trigger_pin`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         trigger_pin: &impl PinInterface,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trigger_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo_pin`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         echo_pin: &impl PinInterface,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_echo_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transceiver`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         transceiver: &impl TransceiverInterface,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transceiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/transceiver/transceiver_mock.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new() -> TransceiverSpy {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TransceiverMockGenerator`
[INFO] [stdout]   --> src/transceiver/transceiver_mock.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct TransceiverMockGenerator {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_mock`
[INFO] [stdout]   --> src/transceiver/transceiver_mock.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn generate_mock(&mut self) -> TransceiverMock {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `when_trigger_called_return`
[INFO] [stdout]   --> src/transceiver/transceiver_mock.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn when_trigger_called_return(&self, result: Result<(),Error>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_trigger_has_been_called`
[INFO] [stdout]   --> src/transceiver/transceiver_mock.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn verify_trigger_has_been_called(&self, calls: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `when_echo_called_return`
[INFO] [stdout]   --> src/transceiver/transceiver_mock.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn when_echo_called_return(&self, result: Result<u8, Error>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_echo_has_been_called`
[INFO] [stdout]    --> src/transceiver/transceiver_mock.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn verify_echo_has_been_called(&self, calls: usize) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `store_spy`
[INFO] [stdout]    --> src/transceiver/transceiver_mock.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn store_spy(spy_id: String, spy: TransceiverSpy) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_spy_id`
[INFO] [stdout]    --> src/transceiver/transceiver_mock.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn generate_spy_id() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pin/pin_mock.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new() -> PinSpy {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PinMockGenerator`
[INFO] [stdout]   --> src/pin/pin_mock.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct PinMockGenerator {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_mock`
[INFO] [stdout]   --> src/pin/pin_mock.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn generate_mock(&mut self) -> PinMock {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `when_transmit_called_return`
[INFO] [stdout]   --> src/pin/pin_mock.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn when_transmit_called_return(&self, result: Result<(),Error>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `when_read_called_return`
[INFO] [stdout]   --> src/pin/pin_mock.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn when_read_called_return(&self, result: Option<u8>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_transmit_calls_has_been_called`
[INFO] [stdout]   --> src/pin/pin_mock.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn verify_transmit_calls_has_been_called(&self, calls: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_read_calls_has_been_called`
[INFO] [stdout]    --> src/pin/pin_mock.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn verify_read_calls_has_been_called(&self, calls: usize) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `store_spy`
[INFO] [stdout]    --> src/pin/pin_mock.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn store_spy(spy_id: String, spy: PinSpy) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_spy_id`
[INFO] [stdout]    --> src/pin/pin_mock.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn generate_spy_id() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new() -> SonarSpy {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SonarMockGenerator`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct SonarMockGenerator {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_mock`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn generate_mock(&mut self) -> SonarMock {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `when_distance_to_obstacle_cm_called_return`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn when_distance_to_obstacle_cm_called_return(&self, result: Result<u64,Error>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_distance_to_obstacle_cm_has_been_called`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn verify_distance_to_obstacle_cm_has_been_called(&self, calls: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `store_spy`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn store_spy(spy_id: String, spy: SonarSpy) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_spy_id`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn generate_spy_id() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         transceiver.trigger(&red_light_pin, red_light_pin_value, 500);
[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 `std::result::Result` that must be used
[INFO] [stdout]   --> src/pin/pin.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | /         self.with_exported( || {
[INFO] [stdout] 11 | |             self.set_direction(Direction::Low)?;
[INFO] [stdout] 12 | |             self.set_value(value)?;
[INFO] [stdout] 13 | |             sleep(Duration::from_millis(duration_ms));
[INFO] [stdout] 14 | |             Ok(())
[INFO] [stdout] 15 | |         });
[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: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 07s
[INFO] running `Command { std: "docker" "inspect" "375416548a9809558a6f93ccb8ad343a0ba038fc93d7d13f186d1de338c5d573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375416548a9809558a6f93ccb8ad343a0ba038fc93d7d13f186d1de338c5d573", kill_on_drop: false }`
[INFO] [stdout] 375416548a9809558a6f93ccb8ad343a0ba038fc93d7d13f186d1de338c5d573
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 988721cb40f98e738d0bc434c26942fda9434f258e61318b6bdd5b3a0b39c284
[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" "988721cb40f98e738d0bc434c26942fda9434f258e61318b6bdd5b3a0b39c284", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustythingy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `green_light_pin`
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let green_light_pin = Pin::new(GREEN_LIGHT_PIN);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_green_light_pin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `green_light_pin_value` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut green_light_pin_value;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_green_light_pin_value` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `green_light_pin_value` is never read
[INFO] [stdout]   --> src/main.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 green_light_pin_value = 0;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `green_light_pin_value` is never read
[INFO] [stdout]   --> src/main.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 green_light_pin_value = 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trigger_pin`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         trigger_pin: &impl PinInterface,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trigger_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo_pin`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         echo_pin: &impl PinInterface,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_echo_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transceiver`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         transceiver: &impl TransceiverInterface,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transceiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new() -> SonarSpy {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SonarMockGenerator`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct SonarMockGenerator {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_mock`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn generate_mock(&mut self) -> SonarMock {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `when_distance_to_obstacle_cm_called_return`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn when_distance_to_obstacle_cm_called_return(&self, result: Result<u64,Error>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_distance_to_obstacle_cm_has_been_called`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn verify_distance_to_obstacle_cm_has_been_called(&self, calls: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `store_spy`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn store_spy(spy_id: String, spy: SonarSpy) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_spy_id`
[INFO] [stdout]   --> src/sonar/sonar_mock.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn generate_spy_id() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         transceiver.trigger(&red_light_pin, red_light_pin_value, 500);
[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 `std::result::Result` that must be used
[INFO] [stdout]   --> src/pin/pin.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | /         self.with_exported( || {
[INFO] [stdout] 11 | |             self.set_direction(Direction::Low)?;
[INFO] [stdout] 12 | |             self.set_value(value)?;
[INFO] [stdout] 13 | |             sleep(Duration::from_millis(duration_ms));
[INFO] [stdout] 14 | |             Ok(())
[INFO] [stdout] 15 | |         });
[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: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "988721cb40f98e738d0bc434c26942fda9434f258e61318b6bdd5b3a0b39c284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988721cb40f98e738d0bc434c26942fda9434f258e61318b6bdd5b3a0b39c284", kill_on_drop: false }`
[INFO] [stdout] 988721cb40f98e738d0bc434c26942fda9434f258e61318b6bdd5b3a0b39c284
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] dc24d83d46b00f8c1f2b13056ea4ee7d899088034261fc6dc40437e6d1a26297
[INFO] running `Command { std: "docker" "start" "-a" "dc24d83d46b00f8c1f2b13056ea4ee7d899088034261fc6dc40437e6d1a26297", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `green_light_pin`
[INFO] [stderr]   --> src/main.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let green_light_pin = Pin::new(GREEN_LIGHT_PIN);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_green_light_pin`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `green_light_pin_value` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut green_light_pin_value;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_green_light_pin_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `green_light_pin_value` is never read
[INFO] [stderr]   --> src/main.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 green_light_pin_value = 0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `green_light_pin_value` is never read
[INFO] [stderr]   --> src/main.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 green_light_pin_value = 1;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `trigger_pin`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         trigger_pin: &impl PinInterface,
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trigger_pin`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `echo_pin`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         echo_pin: &impl PinInterface,
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_echo_pin`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transceiver`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         transceiver: &impl TransceiverInterface,
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transceiver`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn new() -> SonarSpy {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SonarMockGenerator`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub struct SonarMockGenerator {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `generate_mock`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn generate_mock(&mut self) -> SonarMock {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `when_distance_to_obstacle_cm_called_return`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn when_distance_to_obstacle_cm_called_return(&self, result: Result<u64,Error>) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `verify_distance_to_obstacle_cm_has_been_called`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn verify_distance_to_obstacle_cm_has_been_called(&self, calls: usize) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `store_spy`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:86:4
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn store_spy(spy_id: String, spy: SonarSpy) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_spy_id`
[INFO] [stderr]   --> src/sonar/sonar_mock.rs:91:4
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn generate_spy_id() -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         transceiver.trigger(&red_light_pin, red_light_pin_value, 500);
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/pin/pin.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | /         self.with_exported( || {
[INFO] [stderr] 11 | |             self.set_direction(Direction::Low)?;
[INFO] [stderr] 12 | |             self.set_value(value)?;
[INFO] [stderr] 13 | |             sleep(Duration::from_millis(duration_ms));
[INFO] [stderr] 14 | |             Ok(())
[INFO] [stderr] 15 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustythingy-35afd8b3c78b218c
[INFO] [stdout] running 3 tests
[INFO] [stdout] test sonar::sonar::test::should_calculate_distance_to_obstacle ... ok
[INFO] [stdout] test transceiver::transceiver::test::should_transmit_message ... ok
[INFO] [stdout] test transceiver::transceiver::test::should_poll_message ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc24d83d46b00f8c1f2b13056ea4ee7d899088034261fc6dc40437e6d1a26297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc24d83d46b00f8c1f2b13056ea4ee7d899088034261fc6dc40437e6d1a26297", kill_on_drop: false }`
[INFO] [stdout] dc24d83d46b00f8c1f2b13056ea4ee7d899088034261fc6dc40437e6d1a26297
