[INFO] fetching crate tonic_prometheus_layer 0.3.0...
[INFO] testing tonic_prometheus_layer-0.3.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate tonic_prometheus_layer 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate tonic_prometheus_layer 0.3.0
[INFO] finished tweaking crates.io crate tonic_prometheus_layer 0.3.0
[INFO] tweaked toml for crates.io crate tonic_prometheus_layer 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tonic_prometheus_layer 0.3.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tonic_prometheus_layer 0.3.0 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protobuf-support v3.7.2
[INFO] [stderr]   Downloaded tonic-health v0.13.1
[INFO] [stderr]   Downloaded pin-project-internal v1.1.10
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[INFO] [stderr]   Downloaded prost-derive v0.13.5
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[INFO] [stderr]   Downloaded axum-core v0.5.6
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[INFO] [stderr]   Downloaded parking_lot v0.12.4
[INFO] [stderr]   Downloaded parking_lot_core v0.9.11
[INFO] [stderr]   Downloaded anyhow v1.0.98
[INFO] [stderr]   Downloaded prometheus v0.14.0
[INFO] [stderr]   Downloaded tokio-util v0.7.15
[INFO] [stderr]   Downloaded mio v1.0.4
[INFO] [stderr]   Downloaded backtrace v0.3.75
[INFO] [stderr]   Downloaded tonic v0.13.1
[INFO] [stderr]   Downloaded hyper-util v0.1.13
[INFO] [stderr]   Downloaded syn v2.0.101
[INFO] [stderr]   Downloaded hashbrown v0.15.3
[INFO] [stderr]   Downloaded h2 v0.4.10
[INFO] [stderr]   Downloaded axum v0.8.8
[INFO] [stderr]   Downloaded protobuf v3.7.2
[INFO] [stderr]   Downloaded tokio v1.45.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b4ded2f22a40326efe775754f7b12829edf7e3815f0e5dbdeb44c51d8d46795
[INFO] running `Command { std: "docker" "start" "-a" "6b4ded2f22a40326efe775754f7b12829edf7e3815f0e5dbdeb44c51d8d46795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b4ded2f22a40326efe775754f7b12829edf7e3815f0e5dbdeb44c51d8d46795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b4ded2f22a40326efe775754f7b12829edf7e3815f0e5dbdeb44c51d8d46795", kill_on_drop: false }`
[INFO] [stdout] 6b4ded2f22a40326efe775754f7b12829edf7e3815f0e5dbdeb44c51d8d46795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f76329b1b623eba27a5036a7e152b3581e15fe90e552500790b8dca7d70f8445
[INFO] running `Command { std: "docker" "start" "-a" "f76329b1b623eba27a5036a7e152b3581e15fe90e552500790b8dca7d70f8445", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tonic v0.13.1
[INFO] [stderr]    Compiling tonic_prometheus_layer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.26s
[INFO] running `Command { std: "docker" "inspect" "f76329b1b623eba27a5036a7e152b3581e15fe90e552500790b8dca7d70f8445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f76329b1b623eba27a5036a7e152b3581e15fe90e552500790b8dca7d70f8445", kill_on_drop: false }`
[INFO] [stdout] f76329b1b623eba27a5036a7e152b3581e15fe90e552500790b8dca7d70f8445
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8bd15bf3a802341b1bde79a72378e2b4f4cab60e6ec6be93dc847e9b2127730
[INFO] running `Command { std: "docker" "start" "-a" "b8bd15bf3a802341b1bde79a72378e2b4f4cab60e6ec6be93dc847e9b2127730", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling prost v0.13.5
[INFO] [stderr]    Compiling tokio-util v0.7.15
[INFO] [stderr]    Compiling h2 v0.4.10
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling axum v0.8.8
[INFO] [stderr]    Compiling hyper v1.6.0
[INFO] [stderr]    Compiling hyper-util v0.1.13
[INFO] [stderr]    Compiling hyper-timeout v0.5.2
[INFO] [stderr]    Compiling tonic v0.13.1
[INFO] [stderr]    Compiling tonic-health v0.13.1
[INFO] [stderr]    Compiling tonic_prometheus_layer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 21.53s
[INFO] running `Command { std: "docker" "inspect" "b8bd15bf3a802341b1bde79a72378e2b4f4cab60e6ec6be93dc847e9b2127730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8bd15bf3a802341b1bde79a72378e2b4f4cab60e6ec6be93dc847e9b2127730", kill_on_drop: false }`
[INFO] [stdout] b8bd15bf3a802341b1bde79a72378e2b4f4cab60e6ec6be93dc847e9b2127730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9ae112623a11bb066a5a5c4d3cae588775c916c267c65c4181e1f6bb249075c3
[INFO] running `Command { std: "docker" "start" "-a" "9ae112623a11bb066a5a5c4d3cae588775c916c267c65c4181e1f6bb249075c3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tonic_prometheus_layer-746f9dc2cef9e0a9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test client::tests::simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tonic_prometheus_layer
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 27) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - (line 101) ... FAILED
[INFO] [stdout] test src/client.rs - client::MetricsChannel<T>::new (line 87) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 27) stdout ----
[INFO] [stdout] error[E0583]: file not found for module `api`
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | mod api;
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: to create the module `api`, create file "src/api.rs" or "src/api/mod.rs"
[INFO] [stdout]    = note: if there is a `mod api` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] error[E0583]: file not found for module `proto`
[INFO] [stdout]   --> src/lib.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | mod proto;
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: to create the module `proto`, create file "src/proto.rs" or "src/proto/mod.rs"
[INFO] [stdout]    = note: if there is a `mod proto` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rocket` in this scope
[INFO] [stdout]   --> src/lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use rocket::http::Status;
[INFO] [stdout]    |     ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rocket` in this scope
[INFO] [stdout]   --> src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use rocket::response::content::RawText;
[INFO] [stdout]    |     ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rocket` in this scope
[INFO] [stdout]   --> src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use rocket::config::Shutdown;
[INFO] [stdout]    |     ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rocket` in this scope
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | use rocket::response::status::Custom;
[INFO] [stdout]    |     ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rocket`
[INFO] [stdout]   --> src/lib.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use rocket::{get, routes};
[INFO] [stdout]    |     ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rocket` in this scope
[INFO] [stdout]   --> src/lib.rs:80:18
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let config = rocket::config::Config {
[INFO] [stdout]    |                  ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rocket` in this scope
[INFO] [stdout]   --> src/lib.rs:87:11
[INFO] [stdout]    |
[INFO] [stdout] 87 |         ..rocket::config::Config::release_default()
[INFO] [stdout]    |           ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rocket` in this scope
[INFO] [stdout]   --> src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     rocket::custom(config)
[INFO] [stdout]    |     ^^^^^^ use of unresolved module or unlinked crate `rocket`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rocket`, use `cargo add rocket` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0583.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 101) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (99) panicked at src/lib.rs:9:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: tonic::transport::Error(Transport, ConnectError(ConnectError("tcp connect error", 127.0.0.1:80, Os { code: 111, kind: ConnectionRefused, message: "Connection refused" })))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x561a116c081a - std[29689e6404d28ef9]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x561a116c081a - std[29689e6404d28ef9]::backtrace_rs::backtrace::trace_unsynchronized::<std[29689e6404d28ef9]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x561a116c081a - std[29689e6404d28ef9]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x561a116c081a - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x561a116d370a - <core[e929cb53b82a81ca]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x561a116d370a - core[e929cb53b82a81ca]::fmt::write
[INFO] [stdout]    6:     0x561a116c4f72 - std[29689e6404d28ef9]::io::default_write_fmt::<std[29689e6404d28ef9]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x561a116c4f72 - <std[29689e6404d28ef9]::sys::stdio::unix::Stderr as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x561a116a6bef - <std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x561a116a6bef - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x561a116b8df1 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x561a116b906b - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x561a116a6ca8 - std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x561a1169bfa9 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x561a116a7aed - __rustc[3aed6af316653e63]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x561a116d3ecc - core[e929cb53b82a81ca]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x561a116d3c42 - core[e929cb53b82a81ca]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x561a11470fa9 - rust_out[a0c036232cb4117b]::main::{closure#0}
[INFO] [stdout]   18:     0x561a11472696 - <core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>> as core[e929cb53b82a81ca]::future::future::Future>::poll
[INFO] [stdout]   19:     0x561a1146e956 - <tokio[fdab22b19796fbd0]::runtime::park::CachedParkThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>::{closure#0}
[INFO] [stdout]   20:     0x561a1146a836 - <tokio[fdab22b19796fbd0]::runtime::park::CachedParkThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   21:     0x561a114683ab - <tokio[fdab22b19796fbd0]::runtime::context::blocking::BlockingRegionGuard>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   22:     0x561a1146da51 - <tokio[fdab22b19796fbd0]::runtime::scheduler::multi_thread::MultiThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>::{closure#0}
[INFO] [stdout]   23:     0x561a1146c6d3 - tokio[fdab22b19796fbd0]::runtime::context::runtime::enter_runtime::<<tokio[fdab22b19796fbd0]::runtime::scheduler::multi_thread::MultiThread>::block_on<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>::{closure#0}, ()>
[INFO] [stdout]   24:     0x561a1146858d - <tokio[fdab22b19796fbd0]::runtime::scheduler::multi_thread::MultiThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   25:     0x561a11467c7d - <tokio[fdab22b19796fbd0]::runtime::runtime::Runtime>::block_on_inner::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   26:     0x561a114680c9 - <tokio[fdab22b19796fbd0]::runtime::runtime::Runtime>::block_on::<rust_out[a0c036232cb4117b]::main::{closure#0}>
[INFO] [stdout]   27:     0x561a114717ce - rust_out[a0c036232cb4117b]::main
[INFO] [stdout]   28:     0x561a11473183 - <fn() as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   29:     0x561a1146c4a6 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   30:     0x561a1146fea9 - std[29689e6404d28ef9]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   31:     0x561a116b8347 - <&dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   32:     0x561a116b8347 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<&dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x561a116b8347 - std[29689e6404d28ef9]::panicking::catch_unwind::<i32, &dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x561a116b8347 - std[29689e6404d28ef9]::panic::catch_unwind::<&dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x561a116b8347 - std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/rt.rs:175:24
[INFO] [stdout]   36:     0x561a116b8347 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x561a116b8347 - std[29689e6404d28ef9]::panicking::catch_unwind::<isize, std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x561a116b8347 - std[29689e6404d28ef9]::panic::catch_unwind::<std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x561a116b8347 - std[29689e6404d28ef9]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/rt.rs:171:5
[INFO] [stdout]   40:     0x561a1146bd51 - std[29689e6404d28ef9]::rt::lang_start::<()>
[INFO] [stdout]   41:     0x561a11473275 - main
[INFO] [stdout]   42:     0x7905af0641ca - <unknown>
[INFO] [stdout]   43:     0x7905af06428b - __libc_start_main
[INFO] [stdout]   44:     0x561a11467a05 - _start
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/client.rs - client::MetricsChannel<T>::new (line 87) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (81) panicked at src/client.rs:9:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: tonic::transport::Error(Transport, ConnectError(ConnectError("tcp connect error", 127.0.0.1:80, Os { code: 111, kind: ConnectionRefused, message: "Connection refused" })))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56aba2d4381a - std[29689e6404d28ef9]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x56aba2d4381a - std[29689e6404d28ef9]::backtrace_rs::backtrace::trace_unsynchronized::<std[29689e6404d28ef9]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x56aba2d4381a - std[29689e6404d28ef9]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x56aba2d4381a - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x56aba2d5670a - <core[e929cb53b82a81ca]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x56aba2d5670a - core[e929cb53b82a81ca]::fmt::write
[INFO] [stdout]    6:     0x56aba2d47f72 - std[29689e6404d28ef9]::io::default_write_fmt::<std[29689e6404d28ef9]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x56aba2d47f72 - <std[29689e6404d28ef9]::sys::stdio::unix::Stderr as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x56aba2d29bef - <std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x56aba2d29bef - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x56aba2d3bdf1 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x56aba2d3c06b - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x56aba2d29ca8 - std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x56aba2d1efa9 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x56aba2d2aaed - __rustc[3aed6af316653e63]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x56aba2d56ecc - core[e929cb53b82a81ca]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x56aba2d56c42 - core[e929cb53b82a81ca]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x56aba2af3fa9 - rust_out[a0c036232cb4117b]::main::{closure#0}
[INFO] [stdout]   18:     0x56aba2af5696 - <core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>> as core[e929cb53b82a81ca]::future::future::Future>::poll
[INFO] [stdout]   19:     0x56aba2af1956 - <tokio[fdab22b19796fbd0]::runtime::park::CachedParkThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>::{closure#0}
[INFO] [stdout]   20:     0x56aba2aed836 - <tokio[fdab22b19796fbd0]::runtime::park::CachedParkThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   21:     0x56aba2aeb3ab - <tokio[fdab22b19796fbd0]::runtime::context::blocking::BlockingRegionGuard>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   22:     0x56aba2af0a51 - <tokio[fdab22b19796fbd0]::runtime::scheduler::multi_thread::MultiThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>::{closure#0}
[INFO] [stdout]   23:     0x56aba2aef6d3 - tokio[fdab22b19796fbd0]::runtime::context::runtime::enter_runtime::<<tokio[fdab22b19796fbd0]::runtime::scheduler::multi_thread::MultiThread>::block_on<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>::{closure#0}, ()>
[INFO] [stdout]   24:     0x56aba2aeb58d - <tokio[fdab22b19796fbd0]::runtime::scheduler::multi_thread::MultiThread>::block_on::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   25:     0x56aba2aeac7d - <tokio[fdab22b19796fbd0]::runtime::runtime::Runtime>::block_on_inner::<core[e929cb53b82a81ca]::pin::Pin<alloc[9d7caffeb3b5d2c6]::boxed::Box<rust_out[a0c036232cb4117b]::main::{closure#0}>>>
[INFO] [stdout]   26:     0x56aba2aeb0c9 - <tokio[fdab22b19796fbd0]::runtime::runtime::Runtime>::block_on::<rust_out[a0c036232cb4117b]::main::{closure#0}>
[INFO] [stdout]   27:     0x56aba2af47ce - rust_out[a0c036232cb4117b]::main
[INFO] [stdout]   28:     0x56aba2af6183 - <fn() as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   29:     0x56aba2aef4a6 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   30:     0x56aba2af2ea9 - std[29689e6404d28ef9]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   31:     0x56aba2d3b347 - <&dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   32:     0x56aba2d3b347 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<&dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x56aba2d3b347 - std[29689e6404d28ef9]::panicking::catch_unwind::<i32, &dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x56aba2d3b347 - std[29689e6404d28ef9]::panic::catch_unwind::<&dyn core[e929cb53b82a81ca]::ops::function::Fn<(), Output = i32> + core[e929cb53b82a81ca]::panic::unwind_safe::RefUnwindSafe + core[e929cb53b82a81ca]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x56aba2d3b347 - std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/rt.rs:175:24
[INFO] [stdout]   36:     0x56aba2d3b347 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x56aba2d3b347 - std[29689e6404d28ef9]::panicking::catch_unwind::<isize, std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x56aba2d3b347 - std[29689e6404d28ef9]::panic::catch_unwind::<std[29689e6404d28ef9]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x56aba2d3b347 - std[29689e6404d28ef9]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/rt.rs:171:5
[INFO] [stdout]   40:     0x56aba2aeed51 - std[29689e6404d28ef9]::rt::lang_start::<()>
[INFO] [stdout]   41:     0x56aba2af6275 - main
[INFO] [stdout]   42:     0x731452b5a1ca - <unknown>
[INFO] [stdout]   43:     0x731452b5a28b - __libc_start_main
[INFO] [stdout]   44:     0x56aba2aeaa05 - _start
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/client.rs - client::MetricsChannel<T>::new (line 87)
[INFO] [stdout]     src/lib.rs - (line 101)
[INFO] [stdout]     src/lib.rs - (line 27)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9ae112623a11bb066a5a5c4d3cae588775c916c267c65c4181e1f6bb249075c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ae112623a11bb066a5a5c4d3cae588775c916c267c65c4181e1f6bb249075c3", kill_on_drop: false }`
[INFO] [stdout] 9ae112623a11bb066a5a5c4d3cae588775c916c267c65c4181e1f6bb249075c3
