[INFO] cloning repository https://github.com/cherish-ltt/lynn_tcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cherish-ltt/lynn_tcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcherish-ltt%2Flynn_tcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcherish-ltt%2Flynn_tcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce7128508f0d992fe2ad43f9ab99eed1d70a8296
[INFO] testing cherish-ltt/lynn_tcp/ce7128508f0d992fe2ad43f9ab99eed1d70a8296 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcherish-ltt%2Flynn_tcp" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cherish-ltt/lynn_tcp
[INFO] finished tweaking git repo https://github.com/cherish-ltt/lynn_tcp
[INFO] tweaked toml for git repo https://github.com/cherish-ltt/lynn_tcp written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cherish-ltt/lynn_tcp on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cherish-ltt/lynn_tcp 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniz_oxide v0.8.3
[INFO] [stderr]   Downloaded prometheus v0.13.4
[INFO] [stderr]   Downloaded log v0.4.25
[INFO] [stderr]   Downloaded protobuf v2.28.0
[INFO] [stderr]   Downloaded syn v2.0.96
[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_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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d1c12ecdbdc374c6d7604ef28009cba660c49a8cd8e8954a4f12c035582888d
[INFO] running `Command { std: "docker" "start" "-a" "8d1c12ecdbdc374c6d7604ef28009cba660c49a8cd8e8954a4f12c035582888d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d1c12ecdbdc374c6d7604ef28009cba660c49a8cd8e8954a4f12c035582888d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d1c12ecdbdc374c6d7604ef28009cba660c49a8cd8e8954a4f12c035582888d", kill_on_drop: false }`
[INFO] [stdout] 8d1c12ecdbdc374c6d7604ef28009cba660c49a8cd8e8954a4f12c035582888d
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18c7ee07cd1c84e534884e7d2aece95df42a6f4e0ca0f76b21a60202f226717c
[INFO] running `Command { std: "docker" "start" "-a" "18c7ee07cd1c84e534884e7d2aece95df42a6f4e0ca0f76b21a60202f226717c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling prometheus v0.13.4
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling lynn_tcp v1.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.01s
[INFO] running `Command { std: "docker" "inspect" "18c7ee07cd1c84e534884e7d2aece95df42a6f4e0ca0f76b21a60202f226717c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c7ee07cd1c84e534884e7d2aece95df42a6f4e0ca0f76b21a60202f226717c", kill_on_drop: false }`
[INFO] [stdout] 18c7ee07cd1c84e534884e7d2aece95df42a6f4e0ca0f76b21a60202f226717c
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23c00fadd16c0c301bdf94c3382f312a3750deb235a070647f6384b4dc93cd88
[INFO] running `Command { std: "docker" "start" "-a" "23c00fadd16c0c301bdf94c3382f312a3750deb235a070647f6384b4dc93cd88", kill_on_drop: false }`
[INFO] [stderr]    Compiling lynn_tcp v1.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         METRICS.system.memory_used_bytes.set(128 * 1024 * 1024); // 128MB
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         METRICS.system.active_threads.set(4);
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         METRICS.connections.total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         METRICS.messages.received_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let _timer = METRICS.messages.processing_duration_seconds.start_timer();
[INFO] [stdout]    |                      ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             METRICS.messages.size_bytes.observe(data as f64);
[INFO] [stdout]    |             ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         METRICS.messages.received_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         METRICS.connections.total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         METRICS.connections.active.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         METRICS.connections.closed_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         METRICS.connections.failed_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         METRICS.messages.received_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         METRICS.messages.sent_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         METRICS.messages.invalid_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         METRICS.messages.dropped_total.inc();
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         METRICS.network.bytes_received_total.inc_by(1024);
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         METRICS.network.bytes_sent_total.inc_by(2048);
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]   --> examples/metrics_example.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         METRICS.system.memory_used_bytes.set(256 * 1024 * 1024);
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         METRICS.system.active_threads.set(8);
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         METRICS.system.queue_size.set(100);
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         METRICS.errors.total
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         METRICS.errors.rate_limit_rejected.inc();
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         METRICS.errors.validation_errors.inc();
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         METRICS.messages.size_bytes.observe(512.0);
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         METRICS.messages.processing_duration_seconds.observe(0.025);
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |         METRICS.messages.processing_duration_seconds.observe(duration);
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `METRICS` in this scope
[INFO] [stdout]    --> examples/metrics_example.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         METRICS.messages.processing_duration_seconds.observe_duration(|| {
[INFO] [stdout]     |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `metrics` is private
[INFO] [stdout]    --> examples/metrics_example.rs:129:23
[INFO] [stdout]     |
[INFO] [stdout] 129 |         use lynn_tcp::metrics::Timer;
[INFO] [stdout]     |                       ^^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `metrics` is defined here
[INFO] [stdout]    --> src/lib.rs:137:1
[INFO] [stdout]     |
[INFO] [stdout] 137 | mod metrics;
[INFO] [stdout]     | ^^^^^^^^^^^
[INFO] [stdout] help: consider importing one of these traits instead
[INFO] [stdout]     |
[INFO] [stdout] 129 -         use lynn_tcp::metrics::Timer;
[INFO] [stdout] 129 +         use crate::Timer;
[INFO] [stdout]     |
[INFO] [stdout] 129 |         use lynn_tcp::lynn_metrics::Timer;
[INFO] [stdout]     |                       +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/metrics_example.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |         if let Some(data) = input_buf_vo.get_all_bytes().len() {
[INFO] [stdout]    |                ^^^^^^^^^^   ---------------------------------- this expression has type `usize`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                expected `usize`, found `Option<_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type `usize`
[INFO] [stdout]               found enum `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lynn_tcp` (example "metrics_example") due to 29 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "23c00fadd16c0c301bdf94c3382f312a3750deb235a070647f6384b4dc93cd88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c00fadd16c0c301bdf94c3382f312a3750deb235a070647f6384b4dc93cd88", kill_on_drop: false }`
[INFO] [stdout] 23c00fadd16c0c301bdf94c3382f312a3750deb235a070647f6384b4dc93cd88