[INFO] fetching crate testbench 0.8.0...
[INFO] testing testbench-0.8.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate testbench 0.8.0 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate testbench 0.8.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate testbench 0.8.0
[INFO] finished tweaking crates.io crate testbench 0.8.0
[INFO] tweaked toml for crates.io crate testbench 0.8.0 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec204904ecd1af6f112d2430aafc73151f8c69707a5e452312b086e0b45f1f9f
[INFO] running `Command { std: "docker" "start" "-a" "ec204904ecd1af6f112d2430aafc73151f8c69707a5e452312b086e0b45f1f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec204904ecd1af6f112d2430aafc73151f8c69707a5e452312b086e0b45f1f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec204904ecd1af6f112d2430aafc73151f8c69707a5e452312b086e0b45f1f9f", kill_on_drop: false }`
[INFO] [stdout] ec204904ecd1af6f112d2430aafc73151f8c69707a5e452312b086e0b45f1f9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f954c4222c43959606fd7b6da96ef726227cf6f9e15eb923a2a323b5523db7a
[INFO] running `Command { std: "docker" "start" "-a" "6f954c4222c43959606fd7b6da96ef726227cf6f9e15eb923a2a323b5523db7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling testbench v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "6f954c4222c43959606fd7b6da96ef726227cf6f9e15eb923a2a323b5523db7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f954c4222c43959606fd7b6da96ef726227cf6f9e15eb923a2a323b5523db7a", kill_on_drop: false }`
[INFO] [stdout] 6f954c4222c43959606fd7b6da96ef726227cf6f9e15eb923a2a323b5523db7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] beaa4da93e23ca806c64af33abd4b58857b231d010bb2774af2463f90b6d8e6d
[INFO] running `Command { std: "docker" "start" "-a" "beaa4da93e23ca806c64af33abd4b58857b231d010bb2774af2463f90b6d8e6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling testbench v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "beaa4da93e23ca806c64af33abd4b58857b231d010bb2774af2463f90b6d8e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beaa4da93e23ca806c64af33abd4b58857b231d010bb2774af2463f90b6d8e6d", kill_on_drop: false }`
[INFO] [stdout] beaa4da93e23ca806c64af33abd4b58857b231d010bb2774af2463f90b6d8e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75dc030f170e2c3922c327a078b6e4ca6c671631ec2d657b9b0163956da8cda7
[INFO] running `Command { std: "docker" "start" "-a" "75dc030f170e2c3922c327a078b6e4ca6c671631ec2d657b9b0163956da8cda7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/testbench-4f0c6792edc60f9b)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test race_cell::tests::clone ... ok
[INFO] [stdout] test race_cell::tests::consistent_read ... ok
[INFO] [stdout] test race_cell::tests::inconsistent_read ... ok
[INFO] [stdout] test race_cell::tests::protected_transaction ... ignored
[INFO] [stdout] test race_cell::tests::unprotected_race ... ignored
[INFO] [stdout] test race_cell::tests::initial_state ... ok
[INFO] [stdout] test tests::antagonist_showcase ... ok
[INFO] [stdout] test tests::fetch_and_or_xor ... ok
[INFO] [stdout] test tests::swap_and_fetch_add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 17.34s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests testbench
[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" "75dc030f170e2c3922c327a078b6e4ca6c671631ec2d657b9b0163956da8cda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75dc030f170e2c3922c327a078b6e4ca6c671631ec2d657b9b0163956da8cda7", kill_on_drop: false }`
[INFO] [stdout] 75dc030f170e2c3922c327a078b6e4ca6c671631ec2d657b9b0163956da8cda7