[INFO] cloning repository https://github.com/frzifus/modbus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frzifus/modbus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrzifus%2Fmodbus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrzifus%2Fmodbus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c910451065de9f262cabc1a26edc1d0f6362b0b8
[INFO] testing frzifus/modbus against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrzifus%2Fmodbus" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frzifus/modbus 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 git repo https://github.com/frzifus/modbus
[INFO] finished tweaking git repo https://github.com/frzifus/modbus
[INFO] tweaked toml for git repo https://github.com/frzifus/modbus written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/frzifus/modbus 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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] e96212a71f91f1f66b2b93e881caeecccffa00bb281c192b50c4770bec78afd1
[INFO] running `Command { std: "docker" "start" "-a" "e96212a71f91f1f66b2b93e881caeecccffa00bb281c192b50c4770bec78afd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e96212a71f91f1f66b2b93e881caeecccffa00bb281c192b50c4770bec78afd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96212a71f91f1f66b2b93e881caeecccffa00bb281c192b50c4770bec78afd1", kill_on_drop: false }`
[INFO] [stdout] e96212a71f91f1f66b2b93e881caeecccffa00bb281c192b50c4770bec78afd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] e7669964e312d8d819e39cc3f32e20fdf9910b6b0ca6419afcec066c8b5cb2b6
[INFO] running `Command { std: "docker" "start" "-a" "e7669964e312d8d819e39cc3f32e20fdf9910b6b0ca6419afcec066c8b5cb2b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling modbus-tcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static is never used: `HEADER_LENGTH`
[INFO] [stdout]   --> src/server.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | static HEADER_LENGTH: u8 = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `MIN_DATA_LENGTH`
[INFO] [stdout]   --> src/server.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | static MIN_DATA_LENGTH: u8 = 4;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "e7669964e312d8d819e39cc3f32e20fdf9910b6b0ca6419afcec066c8b5cb2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7669964e312d8d819e39cc3f32e20fdf9910b6b0ca6419afcec066c8b5cb2b6", kill_on_drop: false }`
[INFO] [stdout] e7669964e312d8d819e39cc3f32e20fdf9910b6b0ca6419afcec066c8b5cb2b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] fa97ca86a002ae440635ee1b305cb2830ae01cd4c75bac2d191f0a94ebb98d47
[INFO] running `Command { std: "docker" "start" "-a" "fa97ca86a002ae440635ee1b305cb2830ae01cd4c75bac2d191f0a94ebb98d47", kill_on_drop: false }`
[INFO] [stderr]    Compiling modbus-tcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static is never used: `HEADER_LENGTH`
[INFO] [stdout]   --> src/server.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | static HEADER_LENGTH: u8 = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `MIN_DATA_LENGTH`
[INFO] [stdout]   --> src/server.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | static MIN_DATA_LENGTH: u8 = 4;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/modbus_tcp-7e563f2e9d5f165c)
[INFO] running `Command { std: "docker" "inspect" "fa97ca86a002ae440635ee1b305cb2830ae01cd4c75bac2d191f0a94ebb98d47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa97ca86a002ae440635ee1b305cb2830ae01cd4c75bac2d191f0a94ebb98d47", kill_on_drop: false }`
[INFO] [stdout] fa97ca86a002ae440635ee1b305cb2830ae01cd4c75bac2d191f0a94ebb98d47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] e2f9ef36f9c1425524a783ddd2bc94127b057f1df6dd71b69b9dd5cb3030a897
[INFO] running `Command { std: "docker" "start" "-a" "e2f9ef36f9c1425524a783ddd2bc94127b057f1df6dd71b69b9dd5cb3030a897", kill_on_drop: false }`
[INFO] [stderr] warning: static is never used: `HEADER_LENGTH`
[INFO] [stderr]   --> src/server.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | static HEADER_LENGTH: u8 = 7;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `MIN_DATA_LENGTH`
[INFO] [stderr]   --> src/server.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | static MIN_DATA_LENGTH: u8 = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `modbus-tcp` (bin "modbus-tcp" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/modbus_tcp-7e563f2e9d5f165c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test server::tests::test_header ... ok
[INFO] [stdout] test server::tests::test_request ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e2f9ef36f9c1425524a783ddd2bc94127b057f1df6dd71b69b9dd5cb3030a897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f9ef36f9c1425524a783ddd2bc94127b057f1df6dd71b69b9dd5cb3030a897", kill_on_drop: false }`
[INFO] [stdout] e2f9ef36f9c1425524a783ddd2bc94127b057f1df6dd71b69b9dd5cb3030a897