[INFO] fetching crate ring_buffer 2.0.2...
[INFO] testing ring_buffer-2.0.2 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate ring_buffer 2.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ring_buffer 2.0.2 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ring_buffer 2.0.2
[INFO] finished tweaking crates.io crate ring_buffer 2.0.2
[INFO] tweaked toml for crates.io crate ring_buffer 2.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] 2411de1f36fedc2590166c9c9f47eb0db990607dd3965633d18a5fc454ed3fad
[INFO] running `Command { std: "docker" "start" "-a" "2411de1f36fedc2590166c9c9f47eb0db990607dd3965633d18a5fc454ed3fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2411de1f36fedc2590166c9c9f47eb0db990607dd3965633d18a5fc454ed3fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2411de1f36fedc2590166c9c9f47eb0db990607dd3965633d18a5fc454ed3fad", kill_on_drop: false }`
[INFO] [stdout] 2411de1f36fedc2590166c9c9f47eb0db990607dd3965633d18a5fc454ed3fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4efe91b2fbdd685ff109c786b1d2a8e38efd424b48be5244ecaf108b62666ffe
[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" "4efe91b2fbdd685ff109c786b1d2a8e38efd424b48be5244ecaf108b62666ffe", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring_buffer v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "4efe91b2fbdd685ff109c786b1d2a8e38efd424b48be5244ecaf108b62666ffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4efe91b2fbdd685ff109c786b1d2a8e38efd424b48be5244ecaf108b62666ffe", kill_on_drop: false }`
[INFO] [stdout] 4efe91b2fbdd685ff109c786b1d2a8e38efd424b48be5244ecaf108b62666ffe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0343a5aff69670577b701551d29b2f43ddf7e4454ec3346f56676c4f19876271
[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" "0343a5aff69670577b701551d29b2f43ddf7e4454ec3346f56676c4f19876271", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring_buffer v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "0343a5aff69670577b701551d29b2f43ddf7e4454ec3346f56676c4f19876271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0343a5aff69670577b701551d29b2f43ddf7e4454ec3346f56676c4f19876271", kill_on_drop: false }`
[INFO] [stdout] 0343a5aff69670577b701551d29b2f43ddf7e4454ec3346f56676c4f19876271
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dffa28ce13e8be0ae06bd2a19121a0fd3705b54debd8332de6fe4257b18e6246
[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" "dffa28ce13e8be0ae06bd2a19121a0fd3705b54debd8332de6fe4257b18e6246", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ring_buffer-2a69cbe9bc1d1fce)
[INFO] [stdout] test tests::access_and_reallocations ... ok
[INFO] [stderr]    Doc-tests ring_buffer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::get_relative (line 544) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::get_absolute (line 408) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::back_mut (line 209) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::get_absolute_unchecked (line 481) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::back_absolute_index (line 232) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::get_absolute_mut_unchecked (line 516) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::front (line 328) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::front_absolute_index (line 371) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::contains (line 303) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::capacity (line 262) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::back (line 189) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::clear (line 277) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::front_mut (line 348) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::as_slices (line 133) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::get_relative_mut (line 568) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::get_absolute_mut (line 440) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::is_full (line 611) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::is_empty (line 594) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::iter (line 630) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::new (line 74) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::shrink_to_fit (line 874) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::shrink_to (line 804) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::truncate (line 987) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::pop_front (line 699) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::push_back (line 727) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::with_capacity (line 87) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::len (line 681) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::reserve (line 773) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::swap_absolute (line 945) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::swap_relative (line 899) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::iter_mut (line 655) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dffa28ce13e8be0ae06bd2a19121a0fd3705b54debd8332de6fe4257b18e6246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dffa28ce13e8be0ae06bd2a19121a0fd3705b54debd8332de6fe4257b18e6246", kill_on_drop: false }`
[INFO] [stdout] dffa28ce13e8be0ae06bd2a19121a0fd3705b54debd8332de6fe4257b18e6246