[INFO] fetching crate rb 0.4.0...
[INFO] testing rb-0.4.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate rb 0.4.0 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate rb 0.4.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-93/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 781d34a069173d4885bfa5b6836d3c37ac90a26e2ecb77a65b9328cc2c6eb8b0
[INFO] running `Command { std: "docker" "start" "-a" "781d34a069173d4885bfa5b6836d3c37ac90a26e2ecb77a65b9328cc2c6eb8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "781d34a069173d4885bfa5b6836d3c37ac90a26e2ecb77a65b9328cc2c6eb8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "781d34a069173d4885bfa5b6836d3c37ac90a26e2ecb77a65b9328cc2c6eb8b0", kill_on_drop: false }`
[INFO] [stdout] 781d34a069173d4885bfa5b6836d3c37ac90a26e2ecb77a65b9328cc2c6eb8b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6092906373e964eeefa3af773abc4527cf59d869ceb136af40eeaa53854a9e1
[INFO] running `Command { std: "docker" "start" "-a" "f6092906373e964eeefa3af773abc4527cf59d869ceb136af40eeaa53854a9e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rb v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "f6092906373e964eeefa3af773abc4527cf59d869ceb136af40eeaa53854a9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6092906373e964eeefa3af773abc4527cf59d869ceb136af40eeaa53854a9e1", kill_on_drop: false }`
[INFO] [stdout] f6092906373e964eeefa3af773abc4527cf59d869ceb136af40eeaa53854a9e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dda8f077a8ff6dc83e902fa2efbf6be854c719fe8fcdb4c635f5b29c50924e49
[INFO] running `Command { std: "docker" "start" "-a" "dda8f077a8ff6dc83e902fa2efbf6be854c719fe8fcdb4c635f5b29c50924e49", 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 1.43s
[INFO] running `Command { std: "docker" "inspect" "dda8f077a8ff6dc83e902fa2efbf6be854c719fe8fcdb4c635f5b29c50924e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dda8f077a8ff6dc83e902fa2efbf6be854c719fe8fcdb4c635f5b29c50924e49", kill_on_drop: false }`
[INFO] [stdout] dda8f077a8ff6dc83e902fa2efbf6be854c719fe8fcdb4c635f5b29c50924e49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4362da947e7d96e3bb1ab1f36e2f6eba199bc2669a3daa5ce3552fe151c4e373
[INFO] running `Command { std: "docker" "start" "-a" "4362da947e7d96e3bb1ab1f36e2f6eba199bc2669a3daa5ce3552fe151c4e373", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rb-135f10d103eba0ba)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::get_from_empty_buffer_returns_error ... ok
[INFO] [stdout] test tests::get_with_wrapping ... 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::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-548fb0e70faff5d3)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_read ... ok
[INFO] [stdout] test test_get ... ok
[INFO] [stdout] test test_read_write_timeout_wrap_blocking ... ok
[INFO] [stdout] test test_clear ... 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-5da64abc4bff924c)
[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 1.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4362da947e7d96e3bb1ab1f36e2f6eba199bc2669a3daa5ce3552fe151c4e373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4362da947e7d96e3bb1ab1f36e2f6eba199bc2669a3daa5ce3552fe151c4e373", kill_on_drop: false }`
[INFO] [stdout] 4362da947e7d96e3bb1ab1f36e2f6eba199bc2669a3daa5ce3552fe151c4e373