[INFO] fetching crate rb 0.4.0...
[INFO] testing rb-0.4.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rb 0.4.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate rb 0.4.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rb 0.4.0
[INFO] finished tweaking crates.io crate rb 0.4.0
[INFO] tweaked toml for crates.io crate rb 0.4.0 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate crates.io crate rb 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffd5e0ccaa246d78dd58bfaf22cc3c94e5ed2d9f4d77d2e692bab2057951eb7b
[INFO] running `Command { std: "docker" "start" "-a" "ffd5e0ccaa246d78dd58bfaf22cc3c94e5ed2d9f4d77d2e692bab2057951eb7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffd5e0ccaa246d78dd58bfaf22cc3c94e5ed2d9f4d77d2e692bab2057951eb7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffd5e0ccaa246d78dd58bfaf22cc3c94e5ed2d9f4d77d2e692bab2057951eb7b", kill_on_drop: false }`
[INFO] [stdout] ffd5e0ccaa246d78dd58bfaf22cc3c94e5ed2d9f4d77d2e692bab2057951eb7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6632646a50e0fb0cfbeb6d5d220651527780a1c3e69902d9ce1da3e240f0620
[INFO] running `Command { std: "docker" "start" "-a" "d6632646a50e0fb0cfbeb6d5d220651527780a1c3e69902d9ce1da3e240f0620", kill_on_drop: false }`
[INFO] [stderr]    Compiling rb v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "d6632646a50e0fb0cfbeb6d5d220651527780a1c3e69902d9ce1da3e240f0620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6632646a50e0fb0cfbeb6d5d220651527780a1c3e69902d9ce1da3e240f0620", kill_on_drop: false }`
[INFO] [stdout] d6632646a50e0fb0cfbeb6d5d220651527780a1c3e69902d9ce1da3e240f0620
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb4c14b762e8ca89ba084221d6d5ab94d81661f8e0f7c6feb1b83c1b53b2e6c7
[INFO] running `Command { std: "docker" "start" "-a" "eb4c14b762e8ca89ba084221d6d5ab94d81661f8e0f7c6feb1b83c1b53b2e6c7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rb v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rb-b82a094f723eb44f)
[INFO] [stderr]   Executable tests/test.rs (/opt/rustwide/target/debug/deps/test-19b7a31ae20b73ba)
[INFO] [stderr]   Executable tests/threads.rs (/opt/rustwide/target/debug/deps/threads-741ead64591e7966)
[INFO] running `Command { std: "docker" "inspect" "eb4c14b762e8ca89ba084221d6d5ab94d81661f8e0f7c6feb1b83c1b53b2e6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4c14b762e8ca89ba084221d6d5ab94d81661f8e0f7c6feb1b83c1b53b2e6c7", kill_on_drop: false }`
[INFO] [stdout] eb4c14b762e8ca89ba084221d6d5ab94d81661f8e0f7c6feb1b83c1b53b2e6c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae4077c501593f99de6049a2c2b34ecadd08cf2dfc667babcf080d66a93463ba
[INFO] running `Command { std: "docker" "start" "-a" "ae4077c501593f99de6049a2c2b34ecadd08cf2dfc667babcf080d66a93463ba", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rb-b82a094f723eb44f)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::get_from_empty_buffer_returns_error ... ok
[INFO] [stdout] test tests::get_to_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::get_with_wrapping_2 ... ok
[INFO] [stdout] test tests::get_with_wrapping ... ok
[INFO] [stdout] test tests::read_blocking_timeout_to_empty_buffer_returns_none ... ok
[INFO] [stdout] test tests::read_blocking_to_empty_buffer_returns_none ... ok
[INFO] [stdout] test tests::read_from_empty_buffer_returns_error ... ok
[INFO] [stdout] test tests::read_to_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_blocking_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_blocking_timeout_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_to_full_queue_returns_error ... ok
[INFO] [stdout] test tests::read_blocking_timeout_times_out ... ok
[INFO] [stdout] test tests::write_blocking_timeout_times_out ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-19b7a31ae20b73ba)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] test test_get ... ok
[INFO] [stdout] test test_read ... ok
[INFO] [stdout] test test_read_write_timeout_wrap_blocking ... ok
[INFO] [stdout] test test_read_write_wrap ... ok
[INFO] [stdout] test test_read_write_wrap_blocking ... ok
[INFO] [stdout] test test_skip ... ok
[INFO] [stdout] test test_wrap_around ... ok
[INFO] [stdout] test test_write ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/threads.rs (/opt/rustwide/target/debug/deps/threads-741ead64591e7966)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_threads ... ok
[INFO] [stdout] test test_threads_blocking ... ok
[INFO] [stdout] test test_threads_blocking_timeout ... ok
[INFO] [stdout] test test_threads_count_underflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - SpscRb (line 153) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ae4077c501593f99de6049a2c2b34ecadd08cf2dfc667babcf080d66a93463ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4077c501593f99de6049a2c2b34ecadd08cf2dfc667babcf080d66a93463ba", kill_on_drop: false }`
[INFO] [stdout] ae4077c501593f99de6049a2c2b34ecadd08cf2dfc667babcf080d66a93463ba