[INFO] fetching crate spsc-ringbuf-core 0.1.0...
[INFO] testing spsc-ringbuf-core-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate spsc-ringbuf-core 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate spsc-ringbuf-core 0.1.0
[INFO] finished tweaking crates.io crate spsc-ringbuf-core 0.1.0
[INFO] tweaked toml for crates.io crate spsc-ringbuf-core 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate spsc-ringbuf-core 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74263f7284851a113358efc26160238960fc9c6ee7e1a4e9b9ccb298256059cf
[INFO] running `Command { std: "docker" "start" "-a" "74263f7284851a113358efc26160238960fc9c6ee7e1a4e9b9ccb298256059cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74263f7284851a113358efc26160238960fc9c6ee7e1a4e9b9ccb298256059cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74263f7284851a113358efc26160238960fc9c6ee7e1a4e9b9ccb298256059cf", kill_on_drop: false }`
[INFO] [stdout] 74263f7284851a113358efc26160238960fc9c6ee7e1a4e9b9ccb298256059cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 132b8fbbf6e51556ca12950e240e1a2e5f02685b6e94675ffcbce4b6e02195d7
[INFO] running `Command { std: "docker" "start" "-a" "132b8fbbf6e51556ca12950e240e1a2e5f02685b6e94675ffcbce4b6e02195d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling spsc-ringbuf-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "132b8fbbf6e51556ca12950e240e1a2e5f02685b6e94675ffcbce4b6e02195d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "132b8fbbf6e51556ca12950e240e1a2e5f02685b6e94675ffcbce4b6e02195d7", kill_on_drop: false }`
[INFO] [stdout] 132b8fbbf6e51556ca12950e240e1a2e5f02685b6e94675ffcbce4b6e02195d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b05531684c4c4bfacabc2a0ae71eba25ad3b3339582471e929f38eb4585ff63
[INFO] running `Command { std: "docker" "start" "-a" "8b05531684c4c4bfacabc2a0ae71eba25ad3b3339582471e929f38eb4585ff63", kill_on_drop: false }`
[INFO] [stderr]    Compiling spsc-ringbuf-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "8b05531684c4c4bfacabc2a0ae71eba25ad3b3339582471e929f38eb4585ff63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b05531684c4c4bfacabc2a0ae71eba25ad3b3339582471e929f38eb4585ff63", kill_on_drop: false }`
[INFO] [stdout] 8b05531684c4c4bfacabc2a0ae71eba25ad3b3339582471e929f38eb4585ff63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bdd0117aaec4c70d25052df4bd73d9b90ccddecfc230170ad08514456413b1dc
[INFO] running `Command { std: "docker" "start" "-a" "bdd0117aaec4c70d25052df4bd73d9b90ccddecfc230170ad08514456413b1dc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/spsc_ringbuf_core-736db688dc3816c0)
[INFO] [stdout] running 10 tests
[INFO] [stdout] test ringbuf::tests::test_mut_split ... ok
[INFO] [stdout] test ringbuf_ref::tests::non_power_of_two_len ... ok
[INFO] [stdout] test ringbuf_ref::tests::power_of_two_len ... ok
[INFO] [stdout] test ringbuf_ref::tests::ping_pong ... ok
[INFO] [stdout] test shared_pool::tests::test_basic ... ok
[INFO] [stdout] test ringbuf_ref::tests::validate_size ... ok
[INFO] [stdout] test shared_singleton::tests::ownership_changes ... ok
[INFO] [stdout] test ringbuf_ref::tests::static_instance_example ... ok
[INFO] [stdout] test ringbuf_ref::tests::power_of_two_len_wrap ... ok
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-415dd1c0e3aa1f76)
[INFO] [stdout] test ringbuf_ref::tests::single ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_errors ... ok
[INFO] [stdout] test test_threads ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.98s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests spsc_ringbuf_core
[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" "bdd0117aaec4c70d25052df4bd73d9b90ccddecfc230170ad08514456413b1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdd0117aaec4c70d25052df4bd73d9b90ccddecfc230170ad08514456413b1dc", kill_on_drop: false }`
[INFO] [stdout] bdd0117aaec4c70d25052df4bd73d9b90ccddecfc230170ad08514456413b1dc