[INFO] cloning repository https://github.com/Kousay-Jebir/lb-rs-prototype
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kousay-Jebir/lb-rs-prototype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKousay-Jebir%2Flb-rs-prototype", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 127bb4a9691fa210efd4e266845b8f4a103a0764
[INFO] building Kousay-Jebir/lb-rs-prototype against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKousay-Jebir%2Flb-rs-prototype" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kousay-Jebir/lb-rs-prototype
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[INFO] crate git repo https://github.com/Kousay-Jebir/lb-rs-prototype 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unexpected `cfg` condition value: `no-network`
[INFO] [stdout]   --> src/io/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[cfg_attr(feature = "no-network", derive(Clone))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `no-network` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]  --> src/bin/enum_approach.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct LbErr {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 2 |     err: &'static str
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]  --> src/bin/enum_approach.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct LbInner {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     field: usize
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_other_stuff` is never used
[INFO] [stdout]   --> src/bin/enum_approach.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl LbInner {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_other_stuff` is never used
[INFO] [stdout]   --> src/bin/enum_approach.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl LbProxy {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_other_stuff` is never used
[INFO] [stdout]   --> src/bin/enum_approach.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl Lb {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/enum_approach.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     lb.do_stuff(); 
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let _ = lb.do_stuff(); 
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]  --> src/bin/trait_approach.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct LbErr {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 4 |     err: &'static str
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LbErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]   --> src/bin/trait_approach.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct RealLb {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 14 |     field: usize
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lb` and `rt` are never read
[INFO] [stdout]   --> src/bin/trait_approach.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct BlockingLb {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 69 |     lb: Box<dyn Lb>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 70 |     rt: Arc<Runtime>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `init`, `do_stuff`, and `do_other_stuff` are never used
[INFO] [stdout]   --> src/bin/trait_approach.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl BlockingLb {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 74 |     
[INFO] [stdout] 75 |     fn init(flag: bool) -> LbResult<Self> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     fn do_stuff(&self) -> LbResult<u32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/trait_approach.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     lb.do_stuff().await;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let _ = lb.do_stuff().await;
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/trait_approach.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     lb.do_other_stuff().await;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let _ = lb.do_other_stuff().await;
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 51s
[INFO] running `Command { std: "docker" "inspect" "1e6ab256c6d9c18423568306b180268b160a8dfd9f16e37df2b328fc0575f1e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e6ab256c6d9c18423568306b180268b160a8dfd9f16e37df2b328fc0575f1e6", kill_on_drop: false }`
[INFO] [stdout] 1e6ab256c6d9c18423568306b180268b160a8dfd9f16e37df2b328fc0575f1e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e07d3b07ec160d6a7ea0feb491e231fa6a58982409f62a3a40abb66b3c6293df
[INFO] running `Command { std: "docker" "start" "-a" "e07d3b07ec160d6a7ea0feb491e231fa6a58982409f62a3a40abb66b3c6293df", kill_on_drop: false }`
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling clap_builder v4.5.40
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling variant_count v1.1.0
[INFO] [stdout] warning: unexpected `cfg` condition value: `no-network`
[INFO] [stdout]   --> src/io/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[cfg_attr(feature = "no-network", derive(Clone))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `no-network` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling indicatif v0.17.0-rc.11
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling clap v4.5.40
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling lb-rs-prototype v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]  --> src/bin/enum_approach.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct LbErr {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 2 |     err: &'static str
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]  --> src/bin/enum_approach.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct LbInner {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     field: usize
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_other_stuff` is never used
[INFO] [stdout]   --> src/bin/enum_approach.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl LbInner {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_other_stuff` is never used
[INFO] [stdout]   --> src/bin/enum_approach.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl LbProxy {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_other_stuff` is never used
[INFO] [stdout]   --> src/bin/enum_approach.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl Lb {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/enum_approach.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     lb.do_stuff(); 
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let _ = lb.do_stuff(); 
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]  --> src/bin/trait_approach.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct LbErr {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 4 |     err: &'static str
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LbErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]   --> src/bin/trait_approach.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct RealLb {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 14 |     field: usize
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lb` and `rt` are never read
[INFO] [stdout]   --> src/bin/trait_approach.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct BlockingLb {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 69 |     lb: Box<dyn Lb>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 70 |     rt: Arc<Runtime>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `init`, `do_stuff`, and `do_other_stuff` are never used
[INFO] [stdout]   --> src/bin/trait_approach.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl BlockingLb {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 74 |     
[INFO] [stdout] 75 |     fn init(flag: bool) -> LbResult<Self> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     fn do_stuff(&self) -> LbResult<u32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |     fn do_other_stuff(&self) -> LbResult<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/trait_approach.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     lb.do_stuff().await;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let _ = lb.do_stuff().await;
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/trait_approach.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     lb.do_other_stuff().await;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let _ = lb.do_other_stuff().await;
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `no-network`
[INFO] [stdout]   --> src/io/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[cfg_attr(feature = "no-network", derive(Clone))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `no-network` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 25.06s
[INFO] running `Command { std: "docker" "inspect" "e07d3b07ec160d6a7ea0feb491e231fa6a58982409f62a3a40abb66b3c6293df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07d3b07ec160d6a7ea0feb491e231fa6a58982409f62a3a40abb66b3c6293df", kill_on_drop: false }`
[INFO] [stdout] e07d3b07ec160d6a7ea0feb491e231fa6a58982409f62a3a40abb66b3c6293df