[INFO] cloning repository https://github.com/hedon-rust-road/conutils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hedon-rust-road/conutils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhedon-rust-road%2Fconutils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhedon-rust-road%2Fconutils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57ad3e99c8392a6b712f590c73174cbb908848e3
[INFO] testing hedon-rust-road/conutils against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhedon-rust-road%2Fconutils" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hedon-rust-road/conutils
[INFO] finished tweaking git repo https://github.com/hedon-rust-road/conutils
[INFO] tweaked toml for git repo https://github.com/hedon-rust-road/conutils written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hedon-rust-road/conutils on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hedon-rust-road/conutils already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0be0b2e4d186e1c0d19abbf616722bff95b1bd8939920d7399313ea6ca6969fc
[INFO] running `Command { std: "docker" "start" "-a" "0be0b2e4d186e1c0d19abbf616722bff95b1bd8939920d7399313ea6ca6969fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0be0b2e4d186e1c0d19abbf616722bff95b1bd8939920d7399313ea6ca6969fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be0b2e4d186e1c0d19abbf616722bff95b1bd8939920d7399313ea6ca6969fc", kill_on_drop: false }`
[INFO] [stdout] 0be0b2e4d186e1c0d19abbf616722bff95b1bd8939920d7399313ea6ca6969fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fd6979908b76bdecfd4c745c2db6625e3cc51675a95b0654b202f5ed0fdb49e
[INFO] running `Command { std: "docker" "start" "-a" "2fd6979908b76bdecfd4c745c2db6625e3cc51675a95b0654b202f5ed0fdb49e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]    Compiling atomic-wait v1.1.0
[INFO] [stderr]    Compiling conutils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/mutex.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn lock(&self) -> MutexGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rwlock.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn read(&self) -> ReadGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rwlock.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&self) -> WriteGuard<T> {
[INFO] [stdout]    |                  ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/spinlock.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |                 ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "2fd6979908b76bdecfd4c745c2db6625e3cc51675a95b0654b202f5ed0fdb49e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fd6979908b76bdecfd4c745c2db6625e3cc51675a95b0654b202f5ed0fdb49e", kill_on_drop: false }`
[INFO] [stdout] 2fd6979908b76bdecfd4c745c2db6625e3cc51675a95b0654b202f5ed0fdb49e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4999fb9dfa2c5938d5906e12f3176909c78a51b3e735794129bdb2c3926d46d3
[INFO] running `Command { std: "docker" "start" "-a" "4999fb9dfa2c5938d5906e12f3176909c78a51b3e735794129bdb2c3926d46d3", kill_on_drop: false }`
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/mutex.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn lock(&self) -> MutexGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rwlock.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn read(&self) -> ReadGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rwlock.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&self) -> WriteGuard<T> {
[INFO] [stdout]    |                  ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling conutils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/spinlock.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |                 ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/mutex.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn lock(&self) -> MutexGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rwlock.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn read(&self) -> ReadGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/rwlock.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&self) -> WriteGuard<T> {
[INFO] [stdout]    |                  ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/spinlock.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |                 ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.76s
[INFO] running `Command { std: "docker" "inspect" "4999fb9dfa2c5938d5906e12f3176909c78a51b3e735794129bdb2c3926d46d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4999fb9dfa2c5938d5906e12f3176909c78a51b3e735794129bdb2c3926d46d3", kill_on_drop: false }`
[INFO] [stdout] 4999fb9dfa2c5938d5906e12f3176909c78a51b3e735794129bdb2c3926d46d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4e056d68a5e31be1b880efee49c9abbc1da6e301d42e3689e9c4918fa69cab37
[INFO] running `Command { std: "docker" "start" "-a" "4e056d68a5e31be1b880efee49c9abbc1da6e301d42e3689e9c4918fa69cab37", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/mutex.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn lock(&self) -> MutexGuard<T> {
[INFO] [stderr]    |                 ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stderr]    |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/rwlock.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn read(&self) -> ReadGuard<T> {
[INFO] [stderr]    |                 ^^^^^     ------------ the lifetime gets resolved as `'_`
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stderr]    |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/rwlock.rs:63:18
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn write(&self) -> WriteGuard<T> {
[INFO] [stderr]    |                  ^^^^^     ------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stderr]    |                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/spinlock.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stderr]    |                 ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `conutils` (lib) generated 4 warnings
[INFO] [stderr] warning: `conutils` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/conutils-4af1c7ea2cf60a02)
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test arc::tests::cycle_reference_no_weak_should_not_free_resource ... ok
[INFO] [stdout] test arc::tests::cycle_reference_use_weak_should_free_resource ... ok
[INFO] [stdout] test arc::tests::test_weak_reference ... ok
[INFO] [stdout] test arc::tests::arc_should_work ... ok
[INFO] [stdout] test arc::tests::test_multiple_threads ... ok
[INFO] [stdout] test mpsc::tests::channel_should_work ... ok
[INFO] [stdout] test mpsc::tests::channel_fast_path_should_work ... ok
[INFO] [stdout] test mpsc::tests::receiver_drop_should_error_when_send ... ok
[INFO] [stdout] test arc::tests::test_basic_arc ... ok
[INFO] [stdout] test mpsc::tests::last_sender_drop_should_error_when_receive ... ok
[INFO] [stdout] test mpsc::tests::receiver_shall_be_notified_when_all_senders_exit ... ok
[INFO] [stdout] test arc::tests::test_get_mut ... ok
[INFO] [stdout] test mpsc::tests::multi_producer_should_work ... ok
[INFO] [stdout] test oneshot::tests::one_thread_should_work ... ok
[INFO] [stdout] test rwlock::tests::remutex_should_work ... ok
[INFO] [stdout] test mutex::tests::one_thread_should_work ... ok
[INFO] [stdout] test rwlock::tests::one_thread_should_work ... ok
[INFO] [stdout] test spinlock::tests::one_thread_should_work ... ok
[INFO] [stdout] test spinlock::tests::multi_threads_should_work ... ok
[INFO] [stdout] test mutex::tests::high_concurrency_test ... ok
[INFO] [stdout] test oneshot::tests::multi_threads_should_work ... ok
[INFO] [stdout] test mpsc::tests::receiver_should_be_blocked_when_no_message_is_available ... ok
[INFO] [stdout] test condvar::tests::condvar_usage ... ok
[INFO] [stdout] test mutex::tests::cross_thread_should_work ... ok
[INFO] [stdout] test rwlock::tests::writer_starvation_should_resolved ... ok
[INFO] [stdout] test condvar::tests::condvar_should_work ... ok
[INFO] [stdout] test rwlock::tests::cross_thread_should_work ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.12s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests conutils
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4e056d68a5e31be1b880efee49c9abbc1da6e301d42e3689e9c4918fa69cab37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e056d68a5e31be1b880efee49c9abbc1da6e301d42e3689e9c4918fa69cab37", kill_on_drop: false }`
[INFO] [stdout] 4e056d68a5e31be1b880efee49c9abbc1da6e301d42e3689e9c4918fa69cab37
