[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 master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrzifus%2Fmodbus" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frzifus/modbus on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-10/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54f442cda47b3af0b3d5093c927ccb43d15045d5afccdf5911f93cfc9d585885
[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" "54f442cda47b3af0b3d5093c927ccb43d15045d5afccdf5911f93cfc9d585885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54f442cda47b3af0b3d5093c927ccb43d15045d5afccdf5911f93cfc9d585885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f442cda47b3af0b3d5093c927ccb43d15045d5afccdf5911f93cfc9d585885", kill_on_drop: false }`
[INFO] [stdout] 54f442cda47b3af0b3d5093c927ccb43d15045d5afccdf5911f93cfc9d585885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa80109afdf0faf7396c8f8d2511ca93c1b5f8dbe11312a3c1fbc927a8db53a9
[INFO] running `Command { std: "docker" "start" "-a" "fa80109afdf0faf7396c8f8d2511ca93c1b5f8dbe11312a3c1fbc927a8db53a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.2
[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 3.56s
[INFO] running `Command { std: "docker" "inspect" "fa80109afdf0faf7396c8f8d2511ca93c1b5f8dbe11312a3c1fbc927a8db53a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa80109afdf0faf7396c8f8d2511ca93c1b5f8dbe11312a3c1fbc927a8db53a9", kill_on_drop: false }`
[INFO] [stdout] fa80109afdf0faf7396c8f8d2511ca93c1b5f8dbe11312a3c1fbc927a8db53a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88c80c632ff0dd30835c559f86c1326ef3195f22f250d2708918b2a55e176e34
[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" "88c80c632ff0dd30835c559f86c1326ef3195f22f250d2708918b2a55e176e34", 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "88c80c632ff0dd30835c559f86c1326ef3195f22f250d2708918b2a55e176e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c80c632ff0dd30835c559f86c1326ef3195f22f250d2708918b2a55e176e34", kill_on_drop: false }`
[INFO] [stdout] 88c80c632ff0dd30835c559f86c1326ef3195f22f250d2708918b2a55e176e34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 762c57c81ff83e22cfa4b16af7da9d6b4eaabb65c12e9143c6693e365dda88b6
[INFO] running `Command { std: "docker" "start" "-a" "762c57c81ff83e22cfa4b16af7da9d6b4eaabb65c12e9143c6693e365dda88b6", 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 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/modbus_tcp-f1fc97baa93f2815)
[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" "762c57c81ff83e22cfa4b16af7da9d6b4eaabb65c12e9143c6693e365dda88b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762c57c81ff83e22cfa4b16af7da9d6b4eaabb65c12e9143c6693e365dda88b6", kill_on_drop: false }`
[INFO] [stdout] 762c57c81ff83e22cfa4b16af7da9d6b4eaabb65c12e9143c6693e365dda88b6