[INFO] cloning repository https://github.com/khammersmith17/rust-concurrency-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khammersmith17/rust-concurrency-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhammersmith17%2Frust-concurrency-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhammersmith17%2Frust-concurrency-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d93afc017773e8a80a224844b66e727b727aec7f
[INFO] testing khammersmith17/rust-concurrency-exercise against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhammersmith17%2Frust-concurrency-exercise" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/khammersmith17/rust-concurrency-exercise
[INFO] finished tweaking git repo https://github.com/khammersmith17/rust-concurrency-exercise
[INFO] tweaked toml for git repo https://github.com/khammersmith17/rust-concurrency-exercise written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/khammersmith17/rust-concurrency-exercise on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/khammersmith17/rust-concurrency-exercise 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50
[INFO] running `Command { std: "docker" "start" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50", 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" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50", 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" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrency-primitives v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn lock(&self) -> SpinLockGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn lock(&self) -> SpinLockGuard<'_, T> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:343:22
[INFO] [stdout]     |
[INFO] [stdout] 343 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |              |
[INFO] [stdout]     |                      |              the same lifetime is hidden here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stdout]     |                                            +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:446:22
[INFO] [stdout]     |
[INFO] [stdout] 446 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |              |
[INFO] [stdout]     |                      |              the same lifetime is hidden here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 446 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stdout]     |                                            +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50", 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" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn lock(&self) -> SpinLockGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn lock(&self) -> SpinLockGuard<'_, T> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:343:22
[INFO] [stdout]     |
[INFO] [stdout] 343 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |              |
[INFO] [stdout]     |                      |              the same lifetime is hidden here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stdout]     |                                            +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:446:22
[INFO] [stdout]     |
[INFO] [stdout] 446 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |              |
[INFO] [stdout]     |                      |              the same lifetime is hidden here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 446 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stdout]     |                                            +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling concurrency-primitives v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn lock(&self) -> SpinLockGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn lock(&self) -> SpinLockGuard<'_, T> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:343:22
[INFO] [stdout]     |
[INFO] [stdout] 343 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |              |
[INFO] [stdout]     |                      |              the same lifetime is hidden here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stdout]     |                                            +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:446:22
[INFO] [stdout]     |
[INFO] [stdout] 446 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |              |
[INFO] [stdout]     |                      |              the same lifetime is hidden here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 446 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stdout]     |                                            +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50", 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" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn lock(&self) -> SpinLockGuard<T> {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn lock(&self) -> SpinLockGuard<'_, T> {
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:343:22
[INFO] [stderr]     |
[INFO] [stderr] 343 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stderr]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |              |
[INFO] [stderr]     |                      |              the same lifetime is hidden here
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 343 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stderr]     |                                            +++              +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:446:22
[INFO] [stderr]     |
[INFO] [stderr] 446 |         pub fn split(&mut self) -> (Sender<T>, Receiver<T>) {
[INFO] [stderr]     |                      ^^^^^^^^^      ^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |              |
[INFO] [stderr]     |                      |              the same lifetime is hidden here
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 446 |         pub fn split(&mut self) -> (Sender<'_, T>, Receiver<'_, T>) {
[INFO] [stderr]     |                                            +++              +++
[INFO] [stderr] 
[INFO] [stderr] warning: `concurrency-primitives` (lib) generated 3 warnings (run `cargo fix --lib -p concurrency-primitives` to apply 3 suggestions)
[INFO] [stderr] warning: `concurrency-primitives` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/concurrency_primitives-0d12fc5f45263363)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test::basic_channel_test ... ok
[INFO] [stdout] test test::blocking_oneshot_sender ... ok
[INFO] [stdout] test test::test_ref_oneshot_channel ... ok
[INFO] [stdout] test test::test_arc_weak_ref ... ok
[INFO] [stdout] test test::test_guard ... ok
[INFO] [stdout] test test::arc_oneshot_channel ... ok
[INFO] [stdout] test test::test_basic_arc ... ok
[INFO] [stdout] test test::test_optimized_arc_weak_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests concurrency_primitives
[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" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50", kill_on_drop: false }`
[INFO] [stdout] c1dd8279e0be52fc7381ced946aaaf92f1f1816455c2bb164c010a4e20133c50
