[INFO] fetching crate ufo_rs 0.1.1...
[INFO] checking ufo_rs-0.1.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate ufo_rs 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ufo_rs 0.1.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ufo_rs 0.1.1
[INFO] finished tweaking crates.io crate ufo_rs 0.1.1
[INFO] tweaked toml for crates.io crate ufo_rs 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c33bfdb7d4c789e23fe492f078ec9c325ef90a83e575a83335b4b412c412a533
[INFO] running `Command { std: "docker" "start" "-a" "c33bfdb7d4c789e23fe492f078ec9c325ef90a83e575a83335b4b412c412a533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c33bfdb7d4c789e23fe492f078ec9c325ef90a83e575a83335b4b412c412a533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c33bfdb7d4c789e23fe492f078ec9c325ef90a83e575a83335b4b412c412a533", kill_on_drop: false }`
[INFO] [stdout] c33bfdb7d4c789e23fe492f078ec9c325ef90a83e575a83335b4b412c412a533
[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=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aca973077651209e15d1e94f9945fc4c3a3dbb2733c973a97574e3c94b7d98ac
[INFO] running `Command { std: "docker" "start" "-a" "aca973077651209e15d1e94f9945fc4c3a3dbb2733c973a97574e3c94b7d98ac", kill_on_drop: false }`
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking ufo_rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:182:24
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn left(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:186:25
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn right(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:190:22
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn up(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:194:24
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn down(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:200:28
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn forwards(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:204:29
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn backwards(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:211:28
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn rot_left(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:215:29
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn rot_right(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:182:24
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn left(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:186:25
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn right(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:190:22
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn up(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:194:24
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn down(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:200:28
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn forwards(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:204:29
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn backwards(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:211:28
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn rot_left(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:215:29
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn rot_right(&mut self, time: usize) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_ip`
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     bind_ip: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_port`
[INFO] [stdout]   --> src/lib.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     bind_port: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bat_charge`
[INFO] [stdout]    --> src/lib.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 |     bat_charge: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bat_cap`
[INFO] [stdout]    --> src/lib.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     bat_cap: usize
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_ip`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     bind_ip: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_port`
[INFO] [stdout]    --> src/lib.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     bind_port: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connect_ip`
[INFO] [stdout]    --> src/lib.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     connect_ip: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connect_port`
[INFO] [stdout]    --> src/lib.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     connect_port: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_ip`
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     bind_ip: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_port`
[INFO] [stdout]   --> src/lib.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     bind_port: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bat_charge`
[INFO] [stdout]    --> src/lib.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 |     bat_charge: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bat_cap`
[INFO] [stdout]    --> src/lib.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     bat_cap: usize
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_ip`
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     bind_ip: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bind_port`
[INFO] [stdout]    --> src/lib.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     bind_port: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connect_ip`
[INFO] [stdout]    --> src/lib.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     connect_ip: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connect_port`
[INFO] [stdout]    --> src/lib.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     connect_port: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/drones/jjrc/h61.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.connection.send_command(UdpHex::Land.value());
[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/drones/jjrc/h61.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.connection.send_command(UdpHex::Land.value());
[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: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ufo_rs::traits::drone::*`
[INFO] [stdout]  --> examples/h61-forward-march.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use ufo_rs::traits::drone::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ufo_rs::traits::drone::*`
[INFO] [stdout]  --> examples/h61-takeoff-landing.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ufo_rs::traits::drone::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> examples/h61-forward-march.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         Err(e) => panic!("Connection Error, check connection to drone"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> examples/h61-takeoff-landing.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         Err(e) => panic!("Connection Error, check connection to drone"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> examples/h61-rotate90.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         Err(e) => panic!("Connection Error, check connection to drone"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> examples/h61-hover.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         Err(e) => panic!("Connection Error, check connection to drone"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "aca973077651209e15d1e94f9945fc4c3a3dbb2733c973a97574e3c94b7d98ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aca973077651209e15d1e94f9945fc4c3a3dbb2733c973a97574e3c94b7d98ac", kill_on_drop: false }`
[INFO] [stdout] aca973077651209e15d1e94f9945fc4c3a3dbb2733c973a97574e3c94b7d98ac