[INFO] fetching crate metrics-facade 0.1.1...
[INFO] testing metrics-facade-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate metrics-facade 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate metrics-facade 0.1.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-facade 0.1.1
[INFO] finished tweaking crates.io crate metrics-facade 0.1.1
[INFO] tweaked toml for crates.io crate metrics-facade 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] f3a557ea2ed7e97e119e199346471fa043b90ab272eaa2635ec7cccd7f39249c
[INFO] running `Command { std: "docker" "start" "-a" "f3a557ea2ed7e97e119e199346471fa043b90ab272eaa2635ec7cccd7f39249c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3a557ea2ed7e97e119e199346471fa043b90ab272eaa2635ec7cccd7f39249c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a557ea2ed7e97e119e199346471fa043b90ab272eaa2635ec7cccd7f39249c", kill_on_drop: false }`
[INFO] [stdout] f3a557ea2ed7e97e119e199346471fa043b90ab272eaa2635ec7cccd7f39249c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a917028d734501be178e50952936e9db55f0185bbc7e1c83aa7086e32536e2d2
[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" "a917028d734501be178e50952936e9db55f0185bbc7e1c83aa7086e32536e2d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics-facade v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling metrics-core v0.4.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:157:31
[INFO] [stdout]     |
[INFO] [stdout] 157 | static mut RECORDER: &'static Recorder = &NoopRecorder;
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:216:40
[INFO] [stdout]     |
[INFO] [stdout] 216 | pub fn set_recorder(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stdout]     |                                        ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:239:29
[INFO] [stdout]     |
[INFO] [stdout] 239 |     F: FnOnce() -> &'static Recorder,
[INFO] [stdout]     |                             ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:274:52
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub unsafe fn set_recorder_racy(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stdout]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:310:31
[INFO] [stdout]     |
[INFO] [stdout] 310 | pub fn recorder() -> &'static Recorder {
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:242:21
[INFO] [stdout]     |
[INFO] [stdout] 242 |         match STATE.compare_and_swap(UNINITIALIZED, INITIALIZING, Ordering::SeqCst) {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "a917028d734501be178e50952936e9db55f0185bbc7e1c83aa7086e32536e2d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a917028d734501be178e50952936e9db55f0185bbc7e1c83aa7086e32536e2d2", kill_on_drop: false }`
[INFO] [stdout] a917028d734501be178e50952936e9db55f0185bbc7e1c83aa7086e32536e2d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db20fcc99e0f93dfbaee0b916005a93652d014932d6b38c7f16d9c16e666c819
[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" "db20fcc99e0f93dfbaee0b916005a93652d014932d6b38c7f16d9c16e666c819", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:157:31
[INFO] [stdout]     |
[INFO] [stdout] 157 | static mut RECORDER: &'static Recorder = &NoopRecorder;
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metrics-facade v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:216:40
[INFO] [stdout]     |
[INFO] [stdout] 216 | pub fn set_recorder(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stdout]     |                                        ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:239:29
[INFO] [stdout]     |
[INFO] [stdout] 239 |     F: FnOnce() -> &'static Recorder,
[INFO] [stdout]     |                             ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:274:52
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub unsafe fn set_recorder_racy(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stdout]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:310:31
[INFO] [stdout]     |
[INFO] [stdout] 310 | pub fn recorder() -> &'static Recorder {
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:242:21
[INFO] [stdout]     |
[INFO] [stdout] 242 |         match STATE.compare_and_swap(UNINITIALIZED, INITIALIZING, Ordering::SeqCst) {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:157:31
[INFO] [stdout]     |
[INFO] [stdout] 157 | static mut RECORDER: &'static Recorder = &NoopRecorder;
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:216:40
[INFO] [stdout]     |
[INFO] [stdout] 216 | pub fn set_recorder(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stdout]     |                                        ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:239:29
[INFO] [stdout]     |
[INFO] [stdout] 239 |     F: FnOnce() -> &'static Recorder,
[INFO] [stdout]     |                             ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:274:52
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub unsafe fn set_recorder_racy(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stdout]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:310:31
[INFO] [stdout]     |
[INFO] [stdout] 310 | pub fn recorder() -> &'static Recorder {
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:242:21
[INFO] [stdout]     |
[INFO] [stdout] 242 |         match STATE.compare_and_swap(UNINITIALIZED, INITIALIZING, Ordering::SeqCst) {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "db20fcc99e0f93dfbaee0b916005a93652d014932d6b38c7f16d9c16e666c819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db20fcc99e0f93dfbaee0b916005a93652d014932d6b38c7f16d9c16e666c819", kill_on_drop: false }`
[INFO] [stdout] db20fcc99e0f93dfbaee0b916005a93652d014932d6b38c7f16d9c16e666c819
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 808d42e63a8c67e3a07462f24ddb1bf58feb89ed88da432298368d35bf6db9c3
[INFO] running `Command { std: "docker" "start" "-a" "808d42e63a8c67e3a07462f24ddb1bf58feb89ed88da432298368d35bf6db9c3", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:157:31
[INFO] [stderr]     |
[INFO] [stderr] 157 | static mut RECORDER: &'static Recorder = &NoopRecorder;
[INFO] [stderr]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:216:40
[INFO] [stderr]     |
[INFO] [stderr] 216 | pub fn set_recorder(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stderr]     |                                        ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:239:29
[INFO] [stderr]     |
[INFO] [stderr] 239 |     F: FnOnce() -> &'static Recorder,
[INFO] [stderr]     |                             ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:274:52
[INFO] [stderr]     |
[INFO] [stderr] 274 | pub unsafe fn set_recorder_racy(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:310:31
[INFO] [stderr]     |
[INFO] [stderr] 310 | pub fn recorder() -> &'static Recorder {
[INFO] [stderr]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/lib.rs:242:21
[INFO] [stderr]     |
[INFO] [stderr] 242 |         match STATE.compare_and_swap(UNINITIALIZED, INITIALIZING, Ordering::SeqCst) {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:157:31
[INFO] [stderr]     |
[INFO] [stderr] 157 | static mut RECORDER: &'static Recorder = &NoopRecorder;
[INFO] [stderr]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:216:40
[INFO] [stderr]     |
[INFO] [stderr] 216 | pub fn set_recorder(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stderr]     |                                        ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/lib.rs:239:29
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 239 |     F: FnOnce() -> &'static Recorder,
[INFO] [stdout] 
[INFO] [stderr]     |                             ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:274:52
[INFO] [stderr]     |
[INFO] [stderr] 274 | pub unsafe fn set_recorder_racy(recorder: &'static Recorder) -> Result<(), SetRecorderError> {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:310:31
[INFO] [stderr]     |
[INFO] [stderr] 310 | pub fn recorder() -> &'static Recorder {
[INFO] [stderr]     |                               ^^^^^^^^ help: use `dyn`: `dyn Recorder`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/lib.rs:242:21
[INFO] [stderr]     |
[INFO] [stderr] 242 |         match STATE.compare_and_swap(UNINITIALIZED, INITIALIZING, Ordering::SeqCst) {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/metrics_facade-9e53647ad5be0b05
[INFO] [stderr]    Doc-tests metrics-facade
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - (line 98) ... ok
[INFO] [stdout] test src/macros.rs - timing (line 51) ... ok
[INFO] [stdout] test src/lib.rs - (line 126) ... ok
[INFO] [stdout] test src/macros.rs - gauge (line 29) ... ok
[INFO] [stdout] test src/macros.rs - value (line 96) ... ok
[INFO] [stdout] test src/macros.rs - counter (line 7) ... ok
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/lib.rs - (line 68) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "808d42e63a8c67e3a07462f24ddb1bf58feb89ed88da432298368d35bf6db9c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "808d42e63a8c67e3a07462f24ddb1bf58feb89ed88da432298368d35bf6db9c3", kill_on_drop: false }`
[INFO] [stdout] 808d42e63a8c67e3a07462f24ddb1bf58feb89ed88da432298368d35bf6db9c3