[INFO] fetching crate rmodbus 0.5.3...
[INFO] testing rmodbus-0.5.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rmodbus 0.5.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rmodbus 0.5.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmodbus 0.5.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rmodbus 0.5.3
[INFO] tweaked toml for crates.io crate rmodbus 0.5.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate rmodbus 0.5.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixedvec v0.2.4
[INFO] [stderr]   Downloaded libc v0.2.77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5df856ca391c8e8e9c576c1b91a480ecb36c40152c4820d81510e555d3f95bd6
[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" "5df856ca391c8e8e9c576c1b91a480ecb36c40152c4820d81510e555d3f95bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5df856ca391c8e8e9c576c1b91a480ecb36c40152c4820d81510e555d3f95bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5df856ca391c8e8e9c576c1b91a480ecb36c40152c4820d81510e555d3f95bd6", kill_on_drop: false }`
[INFO] [stdout] 5df856ca391c8e8e9c576c1b91a480ecb36c40152c4820d81510e555d3f95bd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 425a48140e8782fe7b809fa88eac809834369d985bc7e01a0f41793ccaf591f3
[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" "425a48140e8782fe7b809fa88eac809834369d985bc7e01a0f41793ccaf591f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling ieee754 v0.2.6
[INFO] [stderr]    Compiling fixedvec v0.2.4
[INFO] [stderr]    Compiling rmodbus v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "425a48140e8782fe7b809fa88eac809834369d985bc7e01a0f41793ccaf591f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425a48140e8782fe7b809fa88eac809834369d985bc7e01a0f41793ccaf591f3", kill_on_drop: false }`
[INFO] [stdout] 425a48140e8782fe7b809fa88eac809834369d985bc7e01a0f41793ccaf591f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1a32c5d1ea462898b88845d7648ce8c54bd7bacfed83f2646ca760179b5043a
[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" "c1a32c5d1ea462898b88845d7648ce8c54bd7bacfed83f2646ca760179b5043a", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rmodbus v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "c1a32c5d1ea462898b88845d7648ce8c54bd7bacfed83f2646ca760179b5043a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a32c5d1ea462898b88845d7648ce8c54bd7bacfed83f2646ca760179b5043a", kill_on_drop: false }`
[INFO] [stdout] c1a32c5d1ea462898b88845d7648ce8c54bd7bacfed83f2646ca760179b5043a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fd9d5ee622cf3da575f1482138d9f35e537caf91b984446ce8b1d1dcb070f58c
[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" "fd9d5ee622cf3da575f1482138d9f35e537caf91b984446ce8b1d1dcb070f58c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rmodbus-ede98dc418c283c5)
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::test_modbus_ascii ... ok
[INFO] [stdout] test tests::test_std_discrete_get_set_bulk ... ok
[INFO] [stdout] test tests::test_std_read_discretes_as_bytes_oob ... ok
[INFO] [stdout] test tests::test_std_coil_get_set_bulk ... ok
[INFO] [stdout] test tests::test_std_frame_fc05_fc06 ... ok
[INFO] [stdout] test tests::test_std_read_inputs_as_bytes_oob ... ok
[INFO] [stdout] test tests::test_std_frame_fc15 ... ok
[INFO] [stdout] test tests::test_std_frame_fc16 ... ok
[INFO] [stdout] test tests::test_std_get_bools_as_u8 ... ok
[INFO] [stdout] test tests::test_std_read_holdings_as_bytes_oob ... ok
[INFO] [stdout] test tests::test_std_frame_fc01_fc02_fc03_fc04_unknown_function ... ok
[INFO] [stdout] test tests::test_std_read_coils_as_bytes_oob ... ok
[INFO] [stdout] test tests::test_std_get_set_inputs ... ok
[INFO] [stdout] test tests::test_std_get_set_bools_as_u8 ... ok
[INFO] [stdout] test tests::test_std_get_set_holdings ... ok
[INFO] [stdout] test tests::test_std_client ... ok
[INFO] [stdout] test tests::test_std_get_set_regs_as_u8 ... ok
[INFO] [stderr]    Doc-tests rmodbus
[INFO] [stdout] test tests::test_std_dump_restore ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 122) ... ignored
[INFO] [stdout] test src/lib.rs - (line 221) ... ignored
[INFO] [stdout] test src/lib.rs - (line 36) ... ignored
[INFO] [stdout] test src/server.rs - server::ModbusFrame (line 22) - compile ... ok
[INFO] [stdout] test src/context.rs - server::context::ModbusContext::iter (line 260) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fd9d5ee622cf3da575f1482138d9f35e537caf91b984446ce8b1d1dcb070f58c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd9d5ee622cf3da575f1482138d9f35e537caf91b984446ce8b1d1dcb070f58c", kill_on_drop: false }`
[INFO] [stdout] fd9d5ee622cf3da575f1482138d9f35e537caf91b984446ce8b1d1dcb070f58c