[INFO] cloning repository https://github.com/zerocode/fix_engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zerocode/fix_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzerocode%2Ffix_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzerocode%2Ffix_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3de33a80fc6dad32c6399fb027ce6f5dc315d78d
[INFO] testing zerocode/fix_engine against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzerocode%2Ffix_engine" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zerocode/fix_engine
[INFO] finished tweaking git repo https://github.com/zerocode/fix_engine
[INFO] tweaked toml for git repo https://github.com/zerocode/fix_engine written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zerocode/fix_engine on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zerocode/fix_engine 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a905b30bea911008799ee161fd16511a48beff6d26c47c426ccb1aee88fd4a7e
[INFO] running `Command { std: "docker" "start" "-a" "a905b30bea911008799ee161fd16511a48beff6d26c47c426ccb1aee88fd4a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a905b30bea911008799ee161fd16511a48beff6d26c47c426ccb1aee88fd4a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a905b30bea911008799ee161fd16511a48beff6d26c47c426ccb1aee88fd4a7e", kill_on_drop: false }`
[INFO] [stdout] a905b30bea911008799ee161fd16511a48beff6d26c47c426ccb1aee88fd4a7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbb709128f24973c200dbf12a5ee49579184fc181295535bbdea5ba87ef519fa
[INFO] running `Command { std: "docker" "start" "-a" "fbb709128f24973c200dbf12a5ee49579184fc181295535bbdea5ba87ef519fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling ctor v0.2.8
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling fix_engine_2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::clock::Clock`
[INFO] [stdout]  --> src/message_optimised.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::clock::Clock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/message_optimised.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CompID` is more private than the item `tag::FixTag::SenderCompID::0`
[INFO] [stdout]    --> src/tag.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout] 168 |     SenderCompID(CompID),
[INFO] [stdout]     |                  ^^^^^^ field `tag::FixTag::SenderCompID::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `CompID` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/tag.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CompID` is more private than the item `tag::FixTag::TargetCompID::0`
[INFO] [stdout]    --> src/tag.rs:169:18
[INFO] [stdout]     |
[INFO] [stdout] 169 |     TargetCompID(CompID),
[INFO] [stdout]     |                  ^^^^^^ field `tag::FixTag::TargetCompID::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `CompID` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/tag.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `PossDupFlag` is more private than the item `tag::FixTag::PossDupFlag::0`
[INFO] [stdout]    --> src/tag.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     PossDupFlag(PossDupFlag),
[INFO] [stdout]     |                 ^^^^^^^^^^^ field `tag::FixTag::PossDupFlag::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `PossDupFlag` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/tag.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | enum PossDupFlag {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHECKSUM_TAG` is never used
[INFO] [stdout]  --> src/tag.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const CHECKSUM_TAG: &str = "10";
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REQUIRED_HEADER_FIELDS` is never used
[INFO] [stdout]  --> src/tag.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const REQUIRED_HEADER_FIELDS: [&str; 7] = ["8", "9", "35", "49", "56", "34", "52"];
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tag.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl CompID {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new(id: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Yes` and `No` are never constructed
[INFO] [stdout]   --> src/tag.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum PossDupFlag {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] 36 |     Yes,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 37 |     No,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PossDupFlag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]   --> src/tag.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl PossDupFlag {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 41 |     fn from_str(value: &str) -> Result<Self, &'static str> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FixMessage2` is never constructed
[INFO] [stdout]  --> src/message_optimised.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct FixMessage2 {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `encode` is never used
[INFO] [stdout]   --> src/message_optimised.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl FixMessage2 {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 12 |     pub(crate) fn encode(&mut self) -> String {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_body_length` is never used
[INFO] [stdout]   --> src/message_optimised.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn calculate_body_length(message: &FixMessage2) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_checksum` is never used
[INFO] [stdout]   --> src/message_optimised.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_checksum(fix_str: String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `int_to_str_no_alloc` is never used
[INFO] [stdout]   --> src/message_optimised.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn int_to_str_no_alloc(n: usize, buffer: &mut [u8]) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/message_optimised.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl FixMessage2 {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 76 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine_factory.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         engine.start(stream, outgoing_receiver, incoming_sender);
[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] 27 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine_factory.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         engine.start(stream, outgoing_receiver, incoming_sender);
[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] 49 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.52s
[INFO] running `Command { std: "docker" "inspect" "fbb709128f24973c200dbf12a5ee49579184fc181295535bbdea5ba87ef519fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbb709128f24973c200dbf12a5ee49579184fc181295535bbdea5ba87ef519fa", kill_on_drop: false }`
[INFO] [stdout] fbb709128f24973c200dbf12a5ee49579184fc181295535bbdea5ba87ef519fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3ed6bf43eaf5be606e3fda4e798e951f239cea01fae596a04dd3bce65b63a69
[INFO] running `Command { std: "docker" "start" "-a" "d3ed6bf43eaf5be606e3fda4e798e951f239cea01fae596a04dd3bce65b63a69", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::clock::Clock`
[INFO] [stdout]  --> src/message_optimised.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::clock::Clock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/message_optimised.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CompID` is more private than the item `tag::FixTag::SenderCompID::0`
[INFO] [stdout]    --> src/tag.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout] 168 |     SenderCompID(CompID),
[INFO] [stdout]     |                  ^^^^^^ field `tag::FixTag::SenderCompID::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `CompID` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/tag.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CompID` is more private than the item `tag::FixTag::TargetCompID::0`
[INFO] [stdout]    --> src/tag.rs:169:18
[INFO] [stdout]     |
[INFO] [stdout] 169 |     TargetCompID(CompID),
[INFO] [stdout]     |                  ^^^^^^ field `tag::FixTag::TargetCompID::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `CompID` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/tag.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `PossDupFlag` is more private than the item `tag::FixTag::PossDupFlag::0`
[INFO] [stdout]    --> src/tag.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     PossDupFlag(PossDupFlag),
[INFO] [stdout]     |                 ^^^^^^^^^^^ field `tag::FixTag::PossDupFlag::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `PossDupFlag` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/tag.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | enum PossDupFlag {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHECKSUM_TAG` is never used
[INFO] [stdout]  --> src/tag.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const CHECKSUM_TAG: &str = "10";
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REQUIRED_HEADER_FIELDS` is never used
[INFO] [stdout]  --> src/tag.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const REQUIRED_HEADER_FIELDS: [&str; 7] = ["8", "9", "35", "49", "56", "34", "52"];
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tag.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl CompID {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new(id: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Yes` and `No` are never constructed
[INFO] [stdout]   --> src/tag.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum PossDupFlag {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] 36 |     Yes,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 37 |     No,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PossDupFlag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fix_engine_2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]   --> src/tag.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl PossDupFlag {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 41 |     fn from_str(value: &str) -> Result<Self, &'static str> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FixMessage2` is never constructed
[INFO] [stdout]  --> src/message_optimised.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct FixMessage2 {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `encode` is never used
[INFO] [stdout]   --> src/message_optimised.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl FixMessage2 {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 12 |     pub(crate) fn encode(&mut self) -> String {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_body_length` is never used
[INFO] [stdout]   --> src/message_optimised.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn calculate_body_length(message: &FixMessage2) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_checksum` is never used
[INFO] [stdout]   --> src/message_optimised.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_checksum(fix_str: String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `int_to_str_no_alloc` is never used
[INFO] [stdout]   --> src/message_optimised.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn int_to_str_no_alloc(n: usize, buffer: &mut [u8]) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/message_optimised.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl FixMessage2 {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 76 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine_factory.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         engine.start(stream, outgoing_receiver, incoming_sender);
[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] 27 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine_factory.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         engine.start(stream, outgoing_receiver, incoming_sender);
[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] 49 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::clock::Clock`
[INFO] [stdout]  --> src/message_optimised.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::clock::Clock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/message_optimised.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `used_linker`
[INFO] [stdout]   --> tests/integration_tests.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[ctor::ctor]
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `ctor::ctor` crate for guidance on how handle this unexpected cfg
[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]    = note: this warning originates in the attribute macro `ctor::ctor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `tag::CompID` is more private than the item `tag::FixTag::SenderCompID::0`
[INFO] [stdout]    --> src/tag.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout] 168 |     SenderCompID(CompID),
[INFO] [stdout]     |                  ^^^^^^ field `tag::FixTag::SenderCompID::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `tag::CompID` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/tag.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `tag::CompID` is more private than the item `tag::FixTag::TargetCompID::0`
[INFO] [stdout]    --> src/tag.rs:169:18
[INFO] [stdout]     |
[INFO] [stdout] 169 |     TargetCompID(CompID),
[INFO] [stdout]     |                  ^^^^^^ field `tag::FixTag::TargetCompID::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `tag::CompID` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/tag.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `tag::PossDupFlag` is more private than the item `tag::FixTag::PossDupFlag::0`
[INFO] [stdout]    --> src/tag.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     PossDupFlag(PossDupFlag),
[INFO] [stdout]     |                 ^^^^^^^^^^^ field `tag::FixTag::PossDupFlag::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `tag::PossDupFlag` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/tag.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | enum PossDupFlag {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHECKSUM_TAG` is never used
[INFO] [stdout]  --> src/tag.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const CHECKSUM_TAG: &str = "10";
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REQUIRED_HEADER_FIELDS` is never used
[INFO] [stdout]  --> src/tag.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const REQUIRED_HEADER_FIELDS: [&str; 7] = ["8", "9", "35", "49", "56", "34", "52"];
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `No` is never constructed
[INFO] [stdout]   --> src/tag.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum PossDupFlag {
[INFO] [stdout]    |      ----------- variant in this enum
[INFO] [stdout] 36 |     Yes,
[INFO] [stdout] 37 |     No,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PossDupFlag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]   --> src/tag.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl PossDupFlag {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 41 |     fn from_str(value: &str) -> Result<Self, &'static str> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine_factory.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         engine.start(stream, outgoing_receiver, incoming_sender);
[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] 27 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine_factory.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         engine.start(stream, outgoing_receiver, incoming_sender);
[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] 49 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "d3ed6bf43eaf5be606e3fda4e798e951f239cea01fae596a04dd3bce65b63a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ed6bf43eaf5be606e3fda4e798e951f239cea01fae596a04dd3bce65b63a69", kill_on_drop: false }`
[INFO] [stdout] d3ed6bf43eaf5be606e3fda4e798e951f239cea01fae596a04dd3bce65b63a69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 201c6f7811d0580de9a977e271fb7752b7bbb7efe257c24db4439c7c46944cc9
[INFO] running `Command { std: "docker" "start" "-a" "201c6f7811d0580de9a977e271fb7752b7bbb7efe257c24db4439c7c46944cc9", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::clock::Clock`
[INFO] [stderr]  --> src/message_optimised.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::clock::Clock;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/message_optimised.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `CompID` is more private than the item `tag::FixTag::SenderCompID::0`
[INFO] [stderr]    --> src/tag.rs:168:18
[INFO] [stderr]     |
[INFO] [stderr] 168 |     SenderCompID(CompID),
[INFO] [stderr]     |                  ^^^^^^ field `tag::FixTag::SenderCompID::0` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `CompID` is only usable at visibility `pub(crate)`
[INFO] [stderr]    --> src/tag.rs:12:1
[INFO] [stderr]     |
[INFO] [stderr]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `CompID` is more private than the item `tag::FixTag::TargetCompID::0`
[INFO] [stderr]    --> src/tag.rs:169:18
[INFO] [stderr]     |
[INFO] [stderr] 169 |     TargetCompID(CompID),
[INFO] [stderr]     |                  ^^^^^^ field `tag::FixTag::TargetCompID::0` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `CompID` is only usable at visibility `pub(crate)`
[INFO] [stderr]    --> src/tag.rs:12:1
[INFO] [stderr]     |
[INFO] [stderr]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `PossDupFlag` is more private than the item `tag::FixTag::PossDupFlag::0`
[INFO] [stderr]    --> src/tag.rs:175:17
[INFO] [stderr]     |
[INFO] [stderr] 175 |     PossDupFlag(PossDupFlag),
[INFO] [stderr]     |                 ^^^^^^^^^^^ field `tag::FixTag::PossDupFlag::0` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `PossDupFlag` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/tag.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr]  35 | enum PossDupFlag {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `CHECKSUM_TAG` is never used
[INFO] [stderr]  --> src/tag.rs:2:7
[INFO] [stderr]   |
[INFO] [stderr] 2 | const CHECKSUM_TAG: &str = "10";
[INFO] [stderr]   |       ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `REQUIRED_HEADER_FIELDS` is never used
[INFO] [stderr]  --> src/tag.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | const REQUIRED_HEADER_FIELDS: [&str; 7] = ["8", "9", "35", "49", "56", "34", "52"];
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/tag.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl CompID {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 15 |     fn new(id: String) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Yes` and `No` are never constructed
[INFO] [stderr]   --> src/tag.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | enum PossDupFlag {
[INFO] [stderr]    |      ----------- variants in this enum
[INFO] [stderr] 36 |     Yes,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 37 |     No,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `PossDupFlag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_str` is never used
[INFO] [stderr]   --> src/tag.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl PossDupFlag {
[INFO] [stderr]    | ---------------- associated function in this implementation
[INFO] [stderr] 41 |     fn from_str(value: &str) -> Result<Self, &'static str> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FixMessage2` is never constructed
[INFO] [stderr]  --> src/message_optimised.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct FixMessage2 {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `encode` is never used
[INFO] [stderr]   --> src/message_optimised.rs:12:19
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl FixMessage2 {
[INFO] [stderr]    | ---------------- method in this implementation
[INFO] [stderr] 12 |     pub(crate) fn encode(&mut self) -> String {
[INFO] [stderr]    |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_body_length` is never used
[INFO] [stderr]   --> src/message_optimised.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn calculate_body_length(message: &FixMessage2) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_checksum` is never used
[INFO] [stderr]   --> src/message_optimised.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn calculate_checksum(fix_str: String) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `int_to_str_no_alloc` is never used
[INFO] [stderr]   --> src/message_optimised.rs:52:4
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn int_to_str_no_alloc(n: usize, buffer: &mut [u8]) -> &str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/message_optimised.rs:76:12
[INFO] [stderr]    |
[INFO] [stderr] 75 | impl FixMessage2 {
[INFO] [stderr]    | ---------------- associated function in this implementation
[INFO] [stderr] 76 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/engine_factory.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/engine_factory.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let _ = engine.start(stream, outgoing_receiver, incoming_sender);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fix_engine_2` (lib) generated 18 warnings (run `cargo fix --lib -p fix_engine_2` to apply 2 suggestions)
[INFO] [stderr] warning: unexpected `cfg` condition value: `used_linker`
[INFO] [stderr]   --> tests/integration_tests.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | #[ctor::ctor]
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: no expected values for `feature`
[INFO] [stderr]    = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]    = help: try referring to `ctor::ctor` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr]    = note: this warning originates in the attribute macro `ctor::ctor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: type `tag::CompID` is more private than the item `tag::FixTag::SenderCompID::0`
[INFO] [stderr]    --> src/tag.rs:168:18
[INFO] [stderr]     |
[INFO] [stderr] 168 |     SenderCompID(CompID),
[INFO] [stderr]     |                  ^^^^^^ field `tag::FixTag::SenderCompID::0` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `tag::CompID` is only usable at visibility `pub(crate)`
[INFO] [stderr]    --> src/tag.rs:12:1
[INFO] [stderr]     |
[INFO] [stderr]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `tag::CompID` is more private than the item `tag::FixTag::TargetCompID::0`
[INFO] [stderr]    --> src/tag.rs:169:18
[INFO] [stderr]     |
[INFO] [stderr] 169 |     TargetCompID(CompID),
[INFO] [stderr]     |                  ^^^^^^ field `tag::FixTag::TargetCompID::0` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `tag::CompID` is only usable at visibility `pub(crate)`
[INFO] [stderr]    --> src/tag.rs:12:1
[INFO] [stderr]     |
[INFO] [stderr]  12 | pub(crate) struct CompID(pub String); // Use &'static str instead of String.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `tag::PossDupFlag` is more private than the item `tag::FixTag::PossDupFlag::0`
[INFO] [stderr]    --> src/tag.rs:175:17
[INFO] [stderr]     |
[INFO] [stderr] 175 |     PossDupFlag(PossDupFlag),
[INFO] [stderr]     |                 ^^^^^^^^^^^ field `tag::FixTag::PossDupFlag::0` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `tag::PossDupFlag` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/tag.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr]  35 | enum PossDupFlag {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `No` is never constructed
[INFO] [stderr]   --> src/tag.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | enum PossDupFlag {
[INFO] [stderr]    |      ----------- variant in this enum
[INFO] [stderr] 36 |     Yes,
[INFO] [stderr] 37 |     No,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `PossDupFlag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `fix_engine_2` (test "integration_tests") generated 1 warning
[INFO] [stderr] warning: `fix_engine_2` (lib test) generated 11 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fix_engine_2-b8d03256c5fa7278)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test message::tests::test_fix_message_encode_correct_order ... ok
[INFO] [stdout] test message::tests::test_invalid_checksum_throws_err ... ok
[INFO] [stdout] test message::tests::test_fix_message_encode_decode ... ok
[INFO] [stdout] test message_optimised::tests::test_calculate_body_length_correctly ... ok
[INFO] [stdout] test message::tests::test_fix_message_encode_with_correct_body_length ... ok
[INFO] [stdout] test message::tests::test_checksum_is_calculated_correctly ... ok
[INFO] [stdout] test message_optimised::tests::test_encode_decode_a_fix_message ... ok
[INFO] [stdout] test message_optimised::tests::test_calculate_checksum_correctly ... ok
[INFO] [stdout] test tag::tests::test_fix_tags ... ok
[INFO] [stdout] test message::tests::test_message_without_soh_fails ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/fixed_clock.rs (/opt/rustwide/target/debug/deps/fixed_clock-437510e4e44490a0)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-ca32de83b3fe5595)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] [2m2026-06-13T17:51:03.364071Z[0m [32m INFO[0m [2mfix_engine_2::engine_factory[0m[2m:[0m Creating Acceptor.
[INFO] [stdout] [2m2026-06-13T17:51:03.364157Z[0m [32m INFO[0m [2mfix_engine_2::engine_factory[0m[2m:[0m Acceptor listening on 127.0.0.1:12345
[INFO] [stdout] [2m2026-06-13T17:51:03.465642Z[0m [32m INFO[0m [2mfix_engine_2::engine_factory[0m[2m:[0m Creating Initiator.
[INFO] [stdout] [2m2026-06-13T17:51:03.466054Z[0m [32m INFO[0m [2mfix_engine_2::engine_factory[0m[2m:[0m Initiator connected to acceptor at 127.0.0.1:12345
[INFO] [stdout] [2m2026-06-13T17:51:03.466866Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Initiator: Ready to send messages.
[INFO] [stdout] [2m2026-06-13T17:51:03.466906Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Initiator: Sending message FixMessage { header: {"8": "FIX.4.4", "35": "A", "49": "INITIATOR", "56": "ACCEPTOR", "34": "1", "52": "20231016-12:30:00.123"}, body: {}, trailer: {} }
[INFO] [stdout] [2m2026-06-13T17:51:03.467706Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Acceptor: Ready to receive messages.
[INFO] [stdout] [2m2026-06-13T17:51:03.467827Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Acceptor: Received message FixMessage { header: {"49": "INITIATOR", "9": "60", "8": "FIX.4.4", "56": "ACCEPTOR", "52": "20231016-12:30:00.123", "35": "A", "34": "1"}, body: {"9": "60"}, trailer: {"10": "210"} }
[INFO] [stdout] [2m2026-06-13T17:51:03.467933Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Acceptor: Shutting down.
[INFO] [stdout] [2m2026-06-13T17:51:03.468666Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Initiator: Ready to receive messages.
[INFO] [stdout] [2m2026-06-13T17:51:03.472686Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Acceptor: Ready to send messages.
[INFO] [stdout] [2m2026-06-13T17:51:04.493644Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Acceptor: Shutdown signal received, exiting receive thread.
[INFO] [stdout] [2m2026-06-13T17:51:04.493865Z[0m [32m INFO[0m [2mfix_engine_2::engine[0m[2m:[0m Acceptor: Fully shut down.
[INFO] [stdout] test test_initiator_acceptor_can_exchange_messages has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "201c6f7811d0580de9a977e271fb7752b7bbb7efe257c24db4439c7c46944cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201c6f7811d0580de9a977e271fb7752b7bbb7efe257c24db4439c7c46944cc9", kill_on_drop: false }`
[INFO] [stdout] 201c6f7811d0580de9a977e271fb7752b7bbb7efe257c24db4439c7c46944cc9
