[INFO] cloning repository https://github.com/AahzBrut/concurrent_cache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AahzBrut/concurrent_cache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAahzBrut%2Fconcurrent_cache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAahzBrut%2Fconcurrent_cache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad7a0e8e71a456b71ad29d42a4c875a24d90322c
[INFO] testing AahzBrut/concurrent_cache 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%2FAahzBrut%2Fconcurrent_cache" "/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/AahzBrut/concurrent_cache
[INFO] finished tweaking git repo https://github.com/AahzBrut/concurrent_cache
[INFO] tweaked toml for git repo https://github.com/AahzBrut/concurrent_cache written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AahzBrut/concurrent_cache 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/AahzBrut/concurrent_cache 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b94bfc1f3f7effa7030605b77366c362546c0ba6188e4b113ad8f8991ed0d797
[INFO] running `Command { std: "docker" "start" "-a" "b94bfc1f3f7effa7030605b77366c362546c0ba6188e4b113ad8f8991ed0d797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b94bfc1f3f7effa7030605b77366c362546c0ba6188e4b113ad8f8991ed0d797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94bfc1f3f7effa7030605b77366c362546c0ba6188e4b113ad8f8991ed0d797", kill_on_drop: false }`
[INFO] [stdout] b94bfc1f3f7effa7030605b77366c362546c0ba6188e4b113ad8f8991ed0d797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 604fe5d25092b087bc4cdffbae15cd533d2b264abbf0d803fffb0d178e77c58d
[INFO] running `Command { std: "docker" "start" "-a" "604fe5d25092b087bc4cdffbae15cd533d2b264abbf0d803fffb0d178e77c58d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling concurrent_cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/sync.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn acquire(&self) -> SemaphoreGuard {
[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] 22 |     pub fn acquire(&self) -> SemaphoreGuard<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `Command { std: "docker" "inspect" "604fe5d25092b087bc4cdffbae15cd533d2b264abbf0d803fffb0d178e77c58d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "604fe5d25092b087bc4cdffbae15cd533d2b264abbf0d803fffb0d178e77c58d", kill_on_drop: false }`
[INFO] [stdout] 604fe5d25092b087bc4cdffbae15cd533d2b264abbf0d803fffb0d178e77c58d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 28034645de2d451d78cdf7d724cc74a54898a5e6c224dcdf87216072213e72a6
[INFO] running `Command { std: "docker" "start" "-a" "28034645de2d451d78cdf7d724cc74a54898a5e6c224dcdf87216072213e72a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrent_cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/sync.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn acquire(&self) -> SemaphoreGuard {
[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] 22 |     pub fn acquire(&self) -> SemaphoreGuard<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "28034645de2d451d78cdf7d724cc74a54898a5e6c224dcdf87216072213e72a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28034645de2d451d78cdf7d724cc74a54898a5e6c224dcdf87216072213e72a6", kill_on_drop: false }`
[INFO] [stdout] 28034645de2d451d78cdf7d724cc74a54898a5e6c224dcdf87216072213e72a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fa323ef9441eaf8686d05e410a20ef40474254a902967e0a867e43a6879494cb
[INFO] running `Command { std: "docker" "start" "-a" "fa323ef9441eaf8686d05e410a20ef40474254a902967e0a867e43a6879494cb", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/sync.rs:22:20
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn acquire(&self) -> SemaphoreGuard {
[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] 22 |     pub fn acquire(&self) -> SemaphoreGuard<'_> {
[INFO] [stderr]    |                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `concurrent_cache` (bin "concurrent_cache" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/concurrent_cache-ac7a27604b35e6d4)
[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" "fa323ef9441eaf8686d05e410a20ef40474254a902967e0a867e43a6879494cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa323ef9441eaf8686d05e410a20ef40474254a902967e0a867e43a6879494cb", kill_on_drop: false }`
[INFO] [stdout] fa323ef9441eaf8686d05e410a20ef40474254a902967e0a867e43a6879494cb
