[INFO] fetching crate asankov-rust-fundamentals 0.1.1...
[INFO] checking asankov-rust-fundamentals-0.1.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate asankov-rust-fundamentals 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate asankov-rust-fundamentals 0.1.1 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate asankov-rust-fundamentals 0.1.1
[INFO] finished tweaking crates.io crate asankov-rust-fundamentals 0.1.1
[INFO] tweaked toml for crates.io crate asankov-rust-fundamentals 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate asankov-rust-fundamentals 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7bb74ffe90f0767c23a2ac45241f97e5e68e9eda4aad0d1a0f1182ba44a8cf4
[INFO] running `Command { std: "docker" "start" "-a" "e7bb74ffe90f0767c23a2ac45241f97e5e68e9eda4aad0d1a0f1182ba44a8cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7bb74ffe90f0767c23a2ac45241f97e5e68e9eda4aad0d1a0f1182ba44a8cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7bb74ffe90f0767c23a2ac45241f97e5e68e9eda4aad0d1a0f1182ba44a8cf4", kill_on_drop: false }`
[INFO] [stdout] e7bb74ffe90f0767c23a2ac45241f97e5e68e9eda4aad0d1a0f1182ba44a8cf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99097f2189ec84430c89e7ad16600631087bf50637eee9d1cfc5c74f44531682
[INFO] running `Command { std: "docker" "start" "-a" "99097f2189ec84430c89e7ad16600631087bf50637eee9d1cfc5c74f44531682", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking asankov-rust-fundamentals v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Segment` is never constructed
[INFO] [stdout]   --> main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Segment {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `distance` are never used
[INFO] [stdout]   --> main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Segment {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 27 |     fn new(start: Waypoint, end: Waypoint) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn distance(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Segment` is never constructed
[INFO] [stdout]   --> main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Segment {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `distance` are never used
[INFO] [stdout]   --> main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Segment {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 27 |     fn new(start: Waypoint, end: Waypoint) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn distance(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:63:66
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 63 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 63 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:75:66
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 75 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 75 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:63:66
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 63 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 63 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:75:66
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 75 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 75 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "99097f2189ec84430c89e7ad16600631087bf50637eee9d1cfc5c74f44531682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99097f2189ec84430c89e7ad16600631087bf50637eee9d1cfc5c74f44531682", kill_on_drop: false }`
[INFO] [stdout] 99097f2189ec84430c89e7ad16600631087bf50637eee9d1cfc5c74f44531682
[INFO] checking asankov-rust-fundamentals-0.1.1 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate asankov-rust-fundamentals 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate asankov-rust-fundamentals 0.1.1 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate asankov-rust-fundamentals 0.1.1
[INFO] finished tweaking crates.io crate asankov-rust-fundamentals 0.1.1
[INFO] tweaked toml for crates.io crate asankov-rust-fundamentals 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate asankov-rust-fundamentals 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c978425dd056acf7ea154c76991b8ac5b799bf1e2ed65793b59f40731a0ac51
[INFO] running `Command { std: "docker" "start" "-a" "0c978425dd056acf7ea154c76991b8ac5b799bf1e2ed65793b59f40731a0ac51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c978425dd056acf7ea154c76991b8ac5b799bf1e2ed65793b59f40731a0ac51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c978425dd056acf7ea154c76991b8ac5b799bf1e2ed65793b59f40731a0ac51", kill_on_drop: false }`
[INFO] [stdout] 0c978425dd056acf7ea154c76991b8ac5b799bf1e2ed65793b59f40731a0ac51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fd7811acaf1b0d4d179574f8f53d58e1c2c8d0cd92432721f67d49208ca003a
[INFO] running `Command { std: "docker" "start" "-a" "6fd7811acaf1b0d4d179574f8f53d58e1c2c8d0cd92432721f67d49208ca003a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking asankov-rust-fundamentals v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Segment` is never constructed
[INFO] [stdout]   --> main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Segment {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Segment` is never constructed
[INFO] [stdout]   --> main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Segment {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `distance` are never used
[INFO] [stdout]   --> main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Segment {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 27 |     fn new(start: Waypoint, end: Waypoint) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn distance(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `distance` are never used
[INFO] [stdout]   --> main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Segment {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 27 |     fn new(start: Waypoint, end: Waypoint) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn distance(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:63:66
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 63 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 63 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:63:66
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 63 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 63 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:75:66
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 75 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 75 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> main.rs:75:66
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout]    |                                                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Waypoint` does not implement `Clone`, so calling `clone` on `&Waypoint` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 75 -                 previous_waypoint = Option::from(current_waypoint.clone());
[INFO] [stdout] 75 +                 previous_waypoint = Option::from(current_waypoint);
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Waypoint`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 5  + #[derive(Clone)]
[INFO] [stdout] 6  | struct Waypoint {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "6fd7811acaf1b0d4d179574f8f53d58e1c2c8d0cd92432721f67d49208ca003a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd7811acaf1b0d4d179574f8f53d58e1c2c8d0cd92432721f67d49208ca003a", kill_on_drop: false }`
[INFO] [stdout] 6fd7811acaf1b0d4d179574f8f53d58e1c2c8d0cd92432721f67d49208ca003a
