[INFO] fetching crate openmetrics 0.2.1...
[INFO] testing openmetrics-0.2.1 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate openmetrics 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate openmetrics 0.2.1 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate openmetrics 0.2.1
[INFO] finished tweaking crates.io crate openmetrics 0.2.1
[INFO] tweaked toml for crates.io crate openmetrics 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f26487536ef2b104e1ad08dfc5699fee7f4326077c6f62e9285d3a0d3e4348d
[INFO] running `Command { std: "docker" "start" "-a" "9f26487536ef2b104e1ad08dfc5699fee7f4326077c6f62e9285d3a0d3e4348d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f26487536ef2b104e1ad08dfc5699fee7f4326077c6f62e9285d3a0d3e4348d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f26487536ef2b104e1ad08dfc5699fee7f4326077c6f62e9285d3a0d3e4348d", kill_on_drop: false }`
[INFO] [stdout] 9f26487536ef2b104e1ad08dfc5699fee7f4326077c6f62e9285d3a0d3e4348d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8021bba7f9a84b2a1287d03815980409ce279a0205ded94823cc50b74cc3c62
[INFO] running `Command { std: "docker" "start" "-a" "e8021bba7f9a84b2a1287d03815980409ce279a0205ded94823cc50b74cc3c62", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling pest v2.7.10
[INFO] [stderr]    Compiling pest_meta v2.7.10
[INFO] [stderr]    Compiling pest_generator v2.7.10
[INFO] [stderr]    Compiling pest_derive v2.7.10
[INFO] [stderr]    Compiling openmetrics v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_text`
[INFO] [stdout]   --> src/metrics.rs:61:47
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "e8021bba7f9a84b2a1287d03815980409ce279a0205ded94823cc50b74cc3c62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8021bba7f9a84b2a1287d03815980409ce279a0205ded94823cc50b74cc3c62", kill_on_drop: false }`
[INFO] [stdout] e8021bba7f9a84b2a1287d03815980409ce279a0205ded94823cc50b74cc3c62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43fd0cde59c32bfb62e3e9f49c67ded89bcf8bd42c8622d770155040ef080a2c
[INFO] running `Command { std: "docker" "start" "-a" "43fd0cde59c32bfb62e3e9f49c67ded89bcf8bd42c8622d770155040ef080a2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling openmetrics v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_text`
[INFO] [stdout]   --> src/metrics.rs:61:47
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_text`
[INFO] [stdout]   --> src/metrics.rs:61:47
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "43fd0cde59c32bfb62e3e9f49c67ded89bcf8bd42c8622d770155040ef080a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43fd0cde59c32bfb62e3e9f49c67ded89bcf8bd42c8622d770155040ef080a2c", kill_on_drop: false }`
[INFO] [stdout] 43fd0cde59c32bfb62e3e9f49c67ded89bcf8bd42c8622d770155040ef080a2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2fe481ec63b3512ad08975def38bd009b57a4bfb8dbf968c40f794129a077a7f
[INFO] running `Command { std: "docker" "start" "-a" "2fe481ec63b3512ad08975def38bd009b57a4bfb8dbf968c40f794129a077a7f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `metric_name`
[INFO] [stderr]   --> src/metrics.rs:24:16
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stderr]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `metric_name`
[INFO] [stderr]   --> src/metrics.rs:61:28
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `metric_text`
[INFO] [stderr]   --> src/metrics.rs:61:47
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stderr]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `metric_name`
[INFO] [stderr]   --> src/metrics.rs:80:12
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stderr]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stderr] 
[INFO] [stderr] warning: `openmetrics` (lib) generated 4 warnings
[INFO] [stderr] warning: `openmetrics` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/openmetrics-a0ffd055b3204a01)
[INFO] [stdout] 
[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] [stderr]    Doc-tests openmetrics
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 14) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 14) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:13:53:
[INFO] [stdout] cannot read file!: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5571ea4a8c95 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x5571ea4a8c95 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5571ea4a8c95 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x5571ea4a8c95 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x5571ea4c66bb - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x5571ea4c66bb - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x5571ea4a6ecf - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x5571ea4a8a6e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5571ea4a8a6e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x5571ea4a9dd9 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x5571ea4a9b1d - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x5571ea4aa273 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x5571ea4aa154 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x5571ea4a9159 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x5571ea4a9e87 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x5571ea44ae83 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x5571ea44b3b6 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x5571ea44bf7a - core::result::Result<T,E>::expect::h6e047940fb6b3daf
[INFO] [stdout]   18:     0x5571ea44c67f - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   19:     0x5571ea44bcc3 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   20:     0x5571ea44b7b6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   21:     0x5571ea44b879 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   22:     0x5571ea4a3dfd - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x5571ea4a3dfd - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x5571ea4a3dfd - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x5571ea4a3dfd - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x5571ea4a3dfd - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x5571ea4a3dfd - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x5571ea4a3dfd - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x5571ea4a3dfd - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x5571ea4a3dfd - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x5571ea44b857 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   32:     0x5571ea44c855 - main
[INFO] [stdout]   33:     0x7fb44fa95d90 - <unknown>
[INFO] [stdout]   34:     0x7fb44fa95e40 - __libc_start_main
[INFO] [stdout]   35:     0x5571ea44b695 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 14)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2fe481ec63b3512ad08975def38bd009b57a4bfb8dbf968c40f794129a077a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe481ec63b3512ad08975def38bd009b57a4bfb8dbf968c40f794129a077a7f", kill_on_drop: false }`
[INFO] [stdout] 2fe481ec63b3512ad08975def38bd009b57a4bfb8dbf968c40f794129a077a7f
[INFO] testing openmetrics-0.2.1 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate openmetrics 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate openmetrics 0.2.1 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate openmetrics 0.2.1
[INFO] finished tweaking crates.io crate openmetrics 0.2.1
[INFO] tweaked toml for crates.io crate openmetrics 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5631b43256064f5d7d8d0584c73b11b5725f21fbdf2643fdf400bbfc4efaa47
[INFO] running `Command { std: "docker" "start" "-a" "c5631b43256064f5d7d8d0584c73b11b5725f21fbdf2643fdf400bbfc4efaa47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5631b43256064f5d7d8d0584c73b11b5725f21fbdf2643fdf400bbfc4efaa47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5631b43256064f5d7d8d0584c73b11b5725f21fbdf2643fdf400bbfc4efaa47", kill_on_drop: false }`
[INFO] [stdout] c5631b43256064f5d7d8d0584c73b11b5725f21fbdf2643fdf400bbfc4efaa47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f919904dd0feeec1c90080a0b0c8cfd2dc409c85466a9554e6bd08f3c365baf
[INFO] running `Command { std: "docker" "start" "-a" "1f919904dd0feeec1c90080a0b0c8cfd2dc409c85466a9554e6bd08f3c365baf", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling pest v2.7.10
[INFO] [stderr]    Compiling pest_meta v2.7.10
[INFO] [stderr]    Compiling pest_generator v2.7.10
[INFO] [stderr]    Compiling pest_derive v2.7.10
[INFO] [stderr]    Compiling openmetrics v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_text`
[INFO] [stdout]   --> src/metrics.rs:61:47
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.93s
[INFO] running `Command { std: "docker" "inspect" "1f919904dd0feeec1c90080a0b0c8cfd2dc409c85466a9554e6bd08f3c365baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f919904dd0feeec1c90080a0b0c8cfd2dc409c85466a9554e6bd08f3c365baf", kill_on_drop: false }`
[INFO] [stdout] 1f919904dd0feeec1c90080a0b0c8cfd2dc409c85466a9554e6bd08f3c365baf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5a8a8005cdd3a99a8dd6f28782fe60b3a503860f4ed250592f75257226792ba
[INFO] running `Command { std: "docker" "start" "-a" "b5a8a8005cdd3a99a8dd6f28782fe60b3a503860f4ed250592f75257226792ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling openmetrics v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_text`
[INFO] [stdout]   --> src/metrics.rs:61:47
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_text`
[INFO] [stdout]   --> src/metrics.rs:61:47
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metric_name`
[INFO] [stdout]   --> src/metrics.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "b5a8a8005cdd3a99a8dd6f28782fe60b3a503860f4ed250592f75257226792ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a8a8005cdd3a99a8dd6f28782fe60b3a503860f4ed250592f75257226792ba", kill_on_drop: false }`
[INFO] [stdout] b5a8a8005cdd3a99a8dd6f28782fe60b3a503860f4ed250592f75257226792ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9a24064ef0632ed2a22f28f3039026dbbb954efb070e99c1a64b26f834d836b6
[INFO] running `Command { std: "docker" "start" "-a" "9a24064ef0632ed2a22f28f3039026dbbb954efb070e99c1a64b26f834d836b6", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr] warning: unused variable: `metric_name`
[INFO] [stdout] 
[INFO] [stderr]   --> src/metrics.rs:24:16
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stderr]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `metric_name`
[INFO] [stderr]   --> src/metrics.rs:61:28
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `metric_text`
[INFO] [stderr]   --> src/metrics.rs:61:47
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn new_with_metric(metric_name: &str, metric_text: &str) -> Self {
[INFO] [stderr]    |                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `metric_name`
[INFO] [stderr]   --> src/metrics.rs:80:12
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stderr]    |            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stderr] 
[INFO] [stderr] warning: `openmetrics` (lib) generated 4 warnings
[INFO] [stderr] warning: `openmetrics` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/openmetrics-a0ffd055b3204a01)
[INFO] [stderr]    Doc-tests openmetrics
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 14) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 14) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:13:53:
[INFO] [stdout] cannot read file!: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x562b30dc9d85 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x562b30dc9d85 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x562b30dc9d85 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x562b30dc9d85 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x562b30de775b - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x562b30de775b - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x562b30dc7f0f - std::io::Write::write_fmt::h456b7988df61daf3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x562b30dc9b5e - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x562b30dc9b5e - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x562b30dcae09 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x562b30dcabd8 - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x562b30dcb2a3 - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x562b30dcb184 - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x562b30dca249 - std::sys_common::backtrace::__rust_end_short_backtrace::h19508a8f8ae71dc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x562b30dcaeb7 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x562b30d6be63 - core::panicking::panic_fmt::h2ba8af99174d83ea
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x562b30d6c396 - core::result::unwrap_failed::h52f3bbb78b59f71d
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x562b30d6cf5a - core::result::Result<T,E>::expect::hab6e3eedb540abff
[INFO] [stdout]   18:     0x562b30d6d65f - rust_out::main::h90fc46ea9798ded1
[INFO] [stdout]   19:     0x562b30d6cca3 - core::ops::function::FnOnce::call_once::h48eb9b1eb2de063c
[INFO] [stdout]   20:     0x562b30d6c796 - std::sys_common::backtrace::__rust_begin_short_backtrace::h747a6d1e1b11dda9
[INFO] [stdout]   21:     0x562b30d6c859 - std::rt::lang_start::{{closure}}::hc32502aff423e72f
[INFO] [stdout]   22:     0x562b30dc4eed - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hac8b4a62b6f52371
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x562b30dc4eed - std::panicking::try::do_call::h6fc24bc97db29d34
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x562b30dc4eed - std::panicking::try::hc544b64aa2eea933
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x562b30dc4eed - std::panic::catch_unwind::hefb17e81fb559b9c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x562b30dc4eed - std::rt::lang_start_internal::{{closure}}::h834103e2d23d958b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x562b30dc4eed - std::panicking::try::do_call::he39c25d597788515
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x562b30dc4eed - std::panicking::try::hf4ef8dd97697f2c7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x562b30dc4eed - std::panic::catch_unwind::haa22d191a5c8abfb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x562b30dc4eed - std::rt::lang_start_internal::h8104aca277c551bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x562b30d6c837 - std::rt::lang_start::h363611def46ee6df
[INFO] [stdout]   32:     0x562b30d6d835 - main
[INFO] [stdout]   33:     0x7f3f7d94cd90 - <unknown>
[INFO] [stdout]   34:     0x7f3f7d94ce40 - __libc_start_main
[INFO] [stdout]   35:     0x562b30d6c675 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 14)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9a24064ef0632ed2a22f28f3039026dbbb954efb070e99c1a64b26f834d836b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a24064ef0632ed2a22f28f3039026dbbb954efb070e99c1a64b26f834d836b6", kill_on_drop: false }`
[INFO] [stdout] 9a24064ef0632ed2a22f28f3039026dbbb954efb070e99c1a64b26f834d836b6
