[INFO] fetching crate hey_listen 0.4.0...
[INFO] testing hey_listen-0.4.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate hey_listen 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate hey_listen 0.4.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hey_listen 0.4.0
[INFO] finished tweaking crates.io crate hey_listen 0.4.0
[INFO] tweaked toml for crates.io crate hey_listen 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1ccc0dac95aaeb60e02ac024b86cd9b7ad9b987830b4820b7b32c997e2317695
[INFO] running `Command { std: "docker" "start" "-a" "1ccc0dac95aaeb60e02ac024b86cd9b7ad9b987830b4820b7b32c997e2317695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ccc0dac95aaeb60e02ac024b86cd9b7ad9b987830b4820b7b32c997e2317695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ccc0dac95aaeb60e02ac024b86cd9b7ad9b987830b4820b7b32c997e2317695", kill_on_drop: false }`
[INFO] [stdout] 1ccc0dac95aaeb60e02ac024b86cd9b7ad9b987830b4820b7b32c997e2317695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b349a71f320153df3bf702e39069b384707155af56d58a30a0a773d18a6e7840
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b349a71f320153df3bf702e39069b384707155af56d58a30a0a773d18a6e7840", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling hey_listen v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/sync/parallel_dispatcher.rs:220:60
[INFO] [stdout]     |
[INFO] [stdout] 220 |             Err(error) => Err(BuildError::NumThreads(error.description().to_string())),
[INFO] [stdout]     |                                                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused boxed `std::ops::Fn` trait object that must be used
[INFO] [stdout]    --> src/sync/parallel_dispatcher.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 listener_collection.fns.swap_remove(*index);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.14s
[INFO] running `Command { std: "docker" "inspect" "b349a71f320153df3bf702e39069b384707155af56d58a30a0a773d18a6e7840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b349a71f320153df3bf702e39069b384707155af56d58a30a0a773d18a6e7840", kill_on_drop: false }`
[INFO] [stdout] b349a71f320153df3bf702e39069b384707155af56d58a30a0a773d18a6e7840
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7652bc91f9e4533caec670a21ba215536a3b793243b5072d4a1d9729c9fb06fc
[INFO] running `Command { std: "docker" "start" "-a" "7652bc91f9e4533caec670a21ba215536a3b793243b5072d4a1d9729c9fb06fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling hey_listen v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/sync/parallel_dispatcher.rs:220:60
[INFO] [stdout]     |
[INFO] [stdout] 220 |             Err(error) => Err(BuildError::NumThreads(error.description().to_string())),
[INFO] [stdout]     |                                                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused boxed `std::ops::Fn` trait object that must be used
[INFO] [stdout]    --> src/sync/parallel_dispatcher.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 listener_collection.fns.swap_remove(*index);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/sync/parallel_dispatcher.rs:220:60
[INFO] [stdout]     |
[INFO] [stdout] 220 |             Err(error) => Err(BuildError::NumThreads(error.description().to_string())),
[INFO] [stdout]     |                                                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused boxed `std::ops::Fn` trait object that must be used
[INFO] [stdout]    --> src/sync/parallel_dispatcher.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 listener_collection.fns.swap_remove(*index);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.00s
[INFO] running `Command { std: "docker" "inspect" "7652bc91f9e4533caec670a21ba215536a3b793243b5072d4a1d9729c9fb06fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7652bc91f9e4533caec670a21ba215536a3b793243b5072d4a1d9729c9fb06fc", kill_on_drop: false }`
[INFO] [stdout] 7652bc91f9e4533caec670a21ba215536a3b793243b5072d4a1d9729c9fb06fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 232406c14ba3a5e846a3d380f1e26f31c505bfc3ef53342d269f645766fb703a
[INFO] running `Command { std: "docker" "start" "-a" "232406c14ba3a5e846a3d380f1e26f31c505bfc3ef53342d269f645766fb703a", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/sync/parallel_dispatcher.rs:220:60
[INFO] [stderr]     |
[INFO] [stderr] 220 |             Err(error) => Err(BuildError::NumThreads(error.description().to_string())),
[INFO] [stderr]     |                                                            ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused boxed `std::ops::Fn` trait object that must be used
[INFO] [stderr]    --> src/sync/parallel_dispatcher.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 259 |                 listener_collection.fns.swap_remove(*index);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/sync/parallel_dispatcher.rs:220:60
[INFO] [stderr]     |
[INFO] [stderr] 220 |             Err(error) => Err(BuildError::NumThreads(error.description().to_string())),
[INFO] [stderr]     |                                                            ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused boxed `std::ops::Fn` trait object that must be used
[INFO] [stderr]    --> src/sync/parallel_dispatcher.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 259 |                 listener_collection.fns.swap_remove(*index);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hey_listen-0e93ad9ff119f4c7
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::empty_vec ... ok
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::stop_listening ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::empty_vec ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::remove_one_element_and_stop ... ok
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::remove_one_element_and_stop ... ok
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::removing_all ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::removing_all ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::stop_listening ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parallel_dispatcher_test-2b62063bd467140c
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test is_send_and_sync ... ok
[INFO] [stdout] test stop_listening_parallel_for_fns ... ok
[INFO] [stdout] test stop_listening_parallel_for_dyn_traits ... ok
[INFO] [stdout] test dispatch_parallel_to_dyn_traits ... ok
[INFO] [stdout] test dispatch_parallel_to_functions ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/priority_listener_test-3ec452c0e6c0584e
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test listeners_dispatch_in_correct_order ... ok
[INFO] [stdout] test stop_propagation_of_fns ... ok
[INFO] [stdout] test stop_listening ... ok
[INFO] [stdout] test stop_listening_of_fns ... ok
[INFO] [stdout] test stop_propagation ... ok
[INFO] [stdout] test stop_listening_and_propagation ... ok
[INFO] [stdout] test stop_listening_and_propagation_of_fns ... ok
[INFO] [stdout] test is_send_and_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/skeptic-c43f9e7ec2c29a5c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `hey_listen`
[INFO] [stderr]  --> /tmp/rust-skeptic.KJCpQOEM28Tp/test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use hey_listen::{RwLock, sync::{Dispatcher,
[INFO] [stderr]   |     ^^^^^^^^^^ use of undeclared type or module `hey_listen`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `hey_listen`
[INFO] [stderr]  --> /tmp/rust-skeptic.KJCpQOEM28Tp/test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use hey_listen::{RwLock, sync::{Dispatcher,
[INFO] [stderr]   |     ^^^^^^^^^^ use of undeclared type or module `hey_listen`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Dispatcher`
[INFO] [stderr]   --> /tmp/rust-skeptic.KJCpQOEM28Tp/test.rs:24:26
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut dispatcher = Dispatcher::<Event>::default();
[INFO] [stderr]    |                          ^^^^^^^^^^ use of undeclared type or module `Dispatcher`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Listener` in this scope
[INFO] [stderr]   --> /tmp/rust-skeptic.KJCpQOEM28Tp/test.rs:14:6
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Listener<Event> for ListenerStruct {
[INFO] [stderr]    |      ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `SyncDispatcherRequest` in this scope
[INFO] [stderr]   --> /tmp/rust-skeptic.KJCpQOEM28Tp/test.rs:15:54
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Listener<Event> for ListenerStruct {
[INFO] [stderr]    |     - help: you might be missing a type parameter: `<SyncDispatcherRequest>`
[INFO] [stderr] 15 |     fn on_event(&mut self, _event: &Event) -> Option<SyncDispatcherRequest> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0412, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: test failed, to rerun pass '--test skeptic'
[INFO] [stdout] test readme_sect_example_line_21 ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- readme_sect_example_line_21 stdout ----
[INFO] [stdout] thread 'readme_sect_example_line_21' panicked at 'Command failed:
[INFO] [stdout] "rustc" "/tmp/rust-skeptic.KJCpQOEM28Tp/test.rs" "--verbose" "--crate-type=bin" "--edition=2018" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/target/debug/deps" "--target" "x86_64-unknown-linux-gnu" "-o" "/tmp/rust-skeptic.KJCpQOEM28Tp/out.exe"', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.13.4/lib.rs:855:13
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5587fb1b1a40 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5587fb1b1a40 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5587fb1b1a40 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5587fb1b1a40 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5587fb1d5fec - core::fmt::write::h9ddafa4860d8adff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stdout]    5:     0x5587faf98af5 - std::io::Write::write_fmt::h50a71e2460ce07da
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stdout]    6:     0x5587fb1abe21 - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h9bbd3fed8160d0d2
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/impls.rs:176
[INFO] [stdout]    7:     0x5587fb1b4300 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5587fb1b4300 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5587fb1b4300 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stdout]   10:     0x5587fb1b3ff6 - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:216
[INFO] [stdout]   11:     0x5587fb1b4963 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stdout]   12:     0x5587fb1b4539 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stdout]   13:     0x5587fb1b1ecc - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5587fb1b44f9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stdout]   15:     0x5587fb1b44ab - std::panicking::begin_panic_fmt::hc1b1320af38b7e12
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:429
[INFO] [stdout]   16:     0x5587fafdcbf8 - skeptic::rt::interpret_output::h8aa4e9e8dc7e2d27
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.13.4/lib.rs:855
[INFO] [stdout]   17:     0x5587fafdc4c2 - skeptic::rt::compile_test_case::hc6707c3aa5240766
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.13.4/lib.rs:833
[INFO] [stdout]   18:     0x5587fafdb5d1 - skeptic::rt::run_test::h19f22ceef3885397
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.13.4/lib.rs:749
[INFO] [stdout]   19:     0x5587faf972d8 - skeptic::readme_sect_example_line_21::h894e3177b231e570
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/hey_listen-f89ec6e050532675/out/skeptic-tests.rs:33
[INFO] [stdout]   20:     0x5587faf9719a - skeptic::readme_sect_example_line_21::{{closure}}::hfaae107a4fef463c
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/hey_listen-f89ec6e050532675/out/skeptic-tests.rs:2
[INFO] [stdout]   21:     0x5587faf973de - core::ops::function::FnOnce::call_once::hf492f681d9a469e6
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   22:     0x5587fafc13d3 - core::ops::function::FnOnce::call_once::hd04d57b5cf16f85a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   23:     0x5587fafc13d3 - test::__rust_begin_short_backtrace::hd8e9a8c5a2e43388
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:517
[INFO] [stdout]   24:     0x5587fafbf8a3 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h3c3db8a500c1a19a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   25:     0x5587fafbf8a3 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h043e9ebcbe360c80
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   26:     0x5587fafbf8a3 - std::panicking::try::do_call::h47c2fb275506c2e8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   27:     0x5587fafbf8a3 - std::panicking::try::h569c20f0e99453b4
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   28:     0x5587fafbf8a3 - std::panic::catch_unwind::hb33c6d0f01540d23
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   29:     0x5587fafbf8a3 - test::run_test_in_process::hc0ce562d167e51cf
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:544
[INFO] [stdout]   30:     0x5587fafbf8a3 - test::run_test::run_test_inner::{{closure}}::hd3120982fcd71544
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:450
[INFO] [stdout]   31:     0x5587faf97f26 - std::sys_common::backtrace::__rust_begin_short_backtrace::h84f8bc12cc4cdac6
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   32:     0x5587faf9d155 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hb8b5fa0ba425d4db
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stdout]   33:     0x5587faf9d155 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc4b84b244cf55f75
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   34:     0x5587faf9d155 - std::panicking::try::do_call::ha31922ad8fa17753
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   35:     0x5587faf9d155 - std::panicking::try::h38a6da203722ae6e
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   36:     0x5587faf9d155 - std::panic::catch_unwind::h83afce167c9062b9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   37:     0x5587faf9d155 - std::thread::Builder::spawn_unchecked::{{closure}}::h160689155590a70c
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stdout]   38:     0x5587faf9d155 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7dbf17a455132a46
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   39:     0x5587fb1bc0ba - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   40:     0x5587fb1bc0ba - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   41:     0x5587fb1bc0ba - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   42:     0x7f091a150609 - start_thread
[INFO] [stdout]   43:     0x7f091a05c103 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     readme_sect_example_line_21
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "232406c14ba3a5e846a3d380f1e26f31c505bfc3ef53342d269f645766fb703a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232406c14ba3a5e846a3d380f1e26f31c505bfc3ef53342d269f645766fb703a", kill_on_drop: false }`
[INFO] [stdout] 232406c14ba3a5e846a3d380f1e26f31c505bfc3ef53342d269f645766fb703a
