[INFO] fetching crate tower-memlim 0.3.0...
[INFO] testing tower-memlim-0.3.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate tower-memlim 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate tower-memlim 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tower-memlim 0.3.0
[INFO] tweaked toml for crates.io crate tower-memlim 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-memlim 0.3.0 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 23 packages to highest compatible versions
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cgroup-memory v0.1.0
[INFO] [stderr]   Downloaded tokio-test v0.4.6
[INFO] [stderr]   Downloaded tower-test v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87
[INFO] running `Command { std: "docker" "start" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87", 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" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87" "/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" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87", 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" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.34
[INFO] [stderr]    Compiling cgroup-memory v0.1.0
[INFO] [stderr]    Compiling tokio-macros v2.7.2
[INFO] [stderr]    Compiling tokio v1.53.3
[INFO] [stderr]    Compiling tower-memlim v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 8.13s
[INFO] running `Command { std: "docker" "inspect" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87", 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" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87" "/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 sync_wrapper v1.0.2
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling tokio-stream v0.1.19
[INFO] [stderr]    Compiling tokio-test v0.4.6
[INFO] [stderr]    Compiling tower v0.5.3
[INFO] [stderr]    Compiling pin-project-internal v1.1.13
[INFO] [stderr]    Compiling pin-project v1.1.13
[INFO] [stderr]    Compiling tower-test v0.4.0
[INFO] [stderr]    Compiling tower-memlim v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `assert_ready_err`
[INFO] [stdout]  --> tests/main.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio_test::{assert_pending, assert_ready_err, assert_ready_ok};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> tests/main.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 | use tower_test::mock::{self};
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> tests/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> tests/main.rs:56:28
[INFO] [stdout]    |
[INFO] [stdout] 56 |     av_memory.store(usize::MAX, Ordering::SeqCst);
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> tests/main.rs:88:28
[INFO] [stdout]    |
[INFO] [stdout] 88 |     av_memory.store(usize::MAX, Ordering::SeqCst);
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> tests/main.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 |     av_memory.store(usize::MIN, Ordering::SeqCst);
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 11.70s
[INFO] running `Command { std: "docker" "inspect" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87", 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" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `assert_ready_err`
[INFO] [stderr]  --> tests/main.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 | use tokio_test::{assert_pending, assert_ready_err, assert_ready_ok};
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> tests/main.rs:19:24
[INFO] [stderr]    |
[INFO] [stderr] 19 | use tower_test::mock::{self};
[INFO] [stderr]    |                        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> tests/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     usize,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> tests/main.rs:56:28
[INFO] [stderr]    |
[INFO] [stderr] 56 |     av_memory.store(usize::MAX, Ordering::SeqCst);
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> tests/main.rs:88:28
[INFO] [stderr]    |
[INFO] [stderr] 88 |     av_memory.store(usize::MAX, Ordering::SeqCst);
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::usize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stderr]   --> tests/main.rs:92:28
[INFO] [stderr]    |
[INFO] [stderr] 92 |     av_memory.store(usize::MIN, Ordering::SeqCst);
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tower-memlim` (test "main") generated 6 warnings (run `cargo fix --test "main" -p tower-memlim` to apply 2 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/tower_memlim-0e4e7ab3f036dfed)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/main.rs (/opt/rustwide/target/release/deps/main-1766a25033eb1296)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_with_load_shed_error ... ok
[INFO] [stdout] test test_basis_with_functional_mem_provider_stub ... ok
[INFO] [stdout] test test_with_load_shed_error_conversion ... ok
[INFO] [stdout] test test_waker ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tower_memlim
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 18) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (382) panicked at src/service.rs:43:29:
[INFO] [stdout] there is no reactor running, must be called from the context of a Tokio 1.x runtime
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5856176db301 - 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:     0x5856176db301 - 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:     0x5856176db301 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5856176db301 - <<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:     0x5856176eb84a - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5856176eb84a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5856176de79c - 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:     0x5856176de79c - <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:     0x5856176c5486 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5856176c5486 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5856176d7dd1 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5856176d7f8b - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:815:13
[INFO] [stdout]   12:     0x5856176c5532 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   13:     0x5856176be759 - 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:     0x5856176c5cad - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   15:     0x5856176ebfac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5856176b42a1 - tokio[eddbb2a04e65f08a]::time::sleep::sleep
[INFO] [stdout]   17:     0x5856176b2080 - <tower_memlim[8ad101f609ce4683]::service::MemoryLimit<tower[10aa62da6dafedd3]::util::service_fn::ServiceFn<rust_out[fc2a76a7d39855e1]::main::_doctest_main_src_lib_rs_18_0::svc_handle>, tower_memlim[8ad101f609ce4683]::memory::LinuxCgroupMemory>>::new
[INFO] [stdout]   18:     0x5856176b262e - <tower_memlim[8ad101f609ce4683]::layer::MemoryLimitLayer<tower_memlim[8ad101f609ce4683]::memory::LinuxCgroupMemory> as tower_layer[ec54354bedf03836]::Layer<tower[10aa62da6dafedd3]::util::service_fn::ServiceFn<rust_out[fc2a76a7d39855e1]::main::_doctest_main_src_lib_rs_18_0::svc_handle>>>::layer
[INFO] [stdout]   19:     0x5856176b265d - <tower_layer[ec54354bedf03836]::stack::Stack<tower_memlim[8ad101f609ce4683]::layer::MemoryLimitLayer<tower_memlim[8ad101f609ce4683]::memory::LinuxCgroupMemory>, tower_layer[ec54354bedf03836]::stack::Stack<tower[10aa62da6dafedd3]::load_shed::layer::LoadShedLayer, tower_layer[ec54354bedf03836]::stack::Stack<tower[10aa62da6dafedd3]::util::map_result::MapResultLayer<rust_out[fc2a76a7d39855e1]::main::_doctest_main_src_lib_rs_18_0::{closure#0}>, tower_layer[ec54354bedf03836]::identity::Identity>>> as tower_layer[ec54354bedf03836]::Layer<tower[10aa62da6dafedd3]::util::service_fn::ServiceFn<rust_out[fc2a76a7d39855e1]::main::_doctest_main_src_lib_rs_18_0::svc_handle>>>::layer
[INFO] [stdout]   20:     0x5856176b1d4d - <tower[10aa62da6dafedd3]::builder::ServiceBuilder<tower_layer[ec54354bedf03836]::stack::Stack<tower_memlim[8ad101f609ce4683]::layer::MemoryLimitLayer<tower_memlim[8ad101f609ce4683]::memory::LinuxCgroupMemory>, tower_layer[ec54354bedf03836]::stack::Stack<tower[10aa62da6dafedd3]::load_shed::layer::LoadShedLayer, tower_layer[ec54354bedf03836]::stack::Stack<tower[10aa62da6dafedd3]::util::map_result::MapResultLayer<rust_out[fc2a76a7d39855e1]::main::_doctest_main_src_lib_rs_18_0::{closure#0}>, tower_layer[ec54354bedf03836]::identity::Identity>>>>>::service::<tower[10aa62da6dafedd3]::util::service_fn::ServiceFn<rust_out[fc2a76a7d39855e1]::main::_doctest_main_src_lib_rs_18_0::svc_handle>>
[INFO] [stdout]   21:     0x5856176b2355 - rust_out[fc2a76a7d39855e1]::main::_doctest_main_src_lib_rs_18_0
[INFO] [stdout]   22:     0x5856176b2016 - rust_out[fc2a76a7d39855e1]::main
[INFO] [stdout]   23:     0x5856176b275b - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   24:     0x5856176b1fd6 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   25:     0x5856176b1fe9 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   26:     0x5856176d7539 - <&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]   27:     0x5856176d7539 - 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]   28:     0x5856176d7539 - 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]   29:     0x5856176d7539 - 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]   30:     0x5856176d7539 - std[70759c8f55707aa4]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/rt.rs:175:24
[INFO] [stdout]   31:     0x5856176d7539 - 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]   32:     0x5856176d7539 - 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]   33:     0x5856176d7539 - 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]   34:     0x5856176d7539 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/rt.rs:171:5
[INFO] [stdout]   35:     0x5856176b1dc1 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stdout]   36:     0x5856176b27a5 - main
[INFO] [stdout]   37:     0x73fe47e4e601 - <unknown>
[INFO] [stdout]   38:     0x73fe47e4e718 - __libc_start_main
[INFO] [stdout]   39:     0x5856176b1c75 - _start
[INFO] [stdout]   40:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 18)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87", kill_on_drop: false }`
[INFO] [stdout] 84c285fdf5d34a4cf91fd84cc2a5ff37798d41147db8b9e2201c1eb61528ce87
