[INFO] fetching crate openmetrics 0.2.1...
[INFO] testing openmetrics-0.2.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate openmetrics 0.2.1 into /workspace/builds/worker-5-tc1/source
[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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate openmetrics 0.2.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to highest compatible versions
[INFO] [stderr]       Adding psm v0.1.24 (available: v0.1.32)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3
[INFO] running `Command { std: "docker" "start" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling psm v0.1.24
[INFO] [stderr]    Compiling stacker v0.1.25
[INFO] [stderr]    Compiling libc v0.2.191
[INFO] [stderr]    Compiling pest v2.9.4
[INFO] [stderr]    Compiling pest_meta v2.9.4
[INFO] [stderr]    Compiling pest_generator v2.9.4
[INFO] [stderr]    Compiling pest_derive v2.9.4
[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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `release` profile [optimized] target(s) in 6.27s
[INFO] running `Command { std: "docker" "inspect" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", 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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `release` profile [optimized] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `metric_name`
[INFO] [stdout] 
[INFO] [stderr]   --> src/metrics.rs:24:16
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 24 |     pub fn add(metric_name: &str, metric_text: &str) -> Label {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metric_name`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) 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 (run `cargo fix --lib -p openmetrics` to apply 4 suggestions)
[INFO] [stderr] warning: `openmetrics` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/openmetrics-d9419a58b55090fd)
[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] 
[INFO] [stdout] thread 'main' (382) panicked at src/lib.rs:12:53:
[INFO] [stdout] cannot read file!: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c691c9da511 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5c691c9da511 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5c691c9da511 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5c691c9da511 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5c691c9ebbea - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5c691c9ebbea - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5c691c9ddeac - core[df12db4294e9bfd3]::io::write::default_write_fmt::<std[70759c8f55707aa4]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5c691c9ddeac - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5c691c9c3ae6 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5c691c9c3ae6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5c691c9d62b1 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5c691c9d646b - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:815:13
[INFO] [stdout]   12:     0x5c691c9c3b92 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   13:     0x5c691c9bca89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x5c691c9c43ad - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   15:     0x5c691c9ec31c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5c691c9ec0f2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   17:     0x5c691c99da09 - <core[df12db4294e9bfd3]::result::Result<alloc[2182bb758b4b3781]::string::String, core[df12db4294e9bfd3]::io::error::Error>>::expect
[INFO] [stdout]   18:     0x5c691c99d8c4 - rust_out[fc2a76a7d39855e1]::main
[INFO] [stdout]   19:     0x5c691c99e943 - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   20:     0x5c691c99d6d6 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   21:     0x5c691c99d7f9 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   22:     0x5c691c9d5a19 - <&dyn core[df12db4294e9bfd3]::ops::function::Fn<(), Output = i32> + core[df12db4294e9bfd3]::panic::unwind_safe::RefUnwindSafe + core[df12db4294e9bfd3]::marker::Sync as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x5c691c9d5a19 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<&dyn core[df12db4294e9bfd3]::ops::function::Fn<(), Output = i32> + core[df12db4294e9bfd3]::panic::unwind_safe::RefUnwindSafe + core[df12db4294e9bfd3]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   24:     0x5c691c9d5a19 - std[70759c8f55707aa4]::panicking::catch_unwind::<i32, &dyn core[df12db4294e9bfd3]::ops::function::Fn<(), Output = i32> + core[df12db4294e9bfd3]::panic::unwind_safe::RefUnwindSafe + core[df12db4294e9bfd3]::marker::Sync>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   25:     0x5c691c9d5a19 - std[70759c8f55707aa4]::panic::catch_unwind::<&dyn core[df12db4294e9bfd3]::ops::function::Fn<(), Output = i32> + core[df12db4294e9bfd3]::panic::unwind_safe::RefUnwindSafe + core[df12db4294e9bfd3]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x5c691c9d5a19 - std[70759c8f55707aa4]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x5c691c9d5a19 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<std[70759c8f55707aa4]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   28:     0x5c691c9d5a19 - std[70759c8f55707aa4]::panicking::catch_unwind::<isize, std[70759c8f55707aa4]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x5c691c9d5a19 - std[70759c8f55707aa4]::panic::catch_unwind::<std[70759c8f55707aa4]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5c691c9d5a19 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x5c691c99d3e1 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stdout]   32:     0x5c691c99e985 - main
[INFO] [stdout]   33:     0x7ddd99a42601 - <unknown>
[INFO] [stdout]   34:     0x7ddd99a42718 - __libc_start_main
[INFO] [stdout]   35:     0x5c691c99ca65 - _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 0.33s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3", kill_on_drop: false }`
[INFO] [stdout] 8faaf89db5de1d02a13cf2eaffa3767eb9e899240afab91c9d1d28c9e7df28a3
