[INFO] cloning repository https://github.com/bosterptr/modbus_scanner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bosterptr/modbus_scanner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbosterptr%2Fmodbus_scanner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbosterptr%2Fmodbus_scanner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c12aa8c2b56ffaa9d052b9928fb60b27d9334d0
[INFO] checking bosterptr/modbus_scanner/9c12aa8c2b56ffaa9d052b9928fb60b27d9334d0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbosterptr%2Fmodbus_scanner" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bosterptr/modbus_scanner on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bosterptr/modbus_scanner
[INFO] finished tweaking git repo https://github.com/bosterptr/modbus_scanner
[INFO] tweaked toml for git repo https://github.com/bosterptr/modbus_scanner written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bosterptr/modbus_scanner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb83b1e17e35398a0508335d68e87d3d521d1c4cf95efc0746e8819ee0657c85
[INFO] running `Command { std: "docker" "start" "-a" "eb83b1e17e35398a0508335d68e87d3d521d1c4cf95efc0746e8819ee0657c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb83b1e17e35398a0508335d68e87d3d521d1c4cf95efc0746e8819ee0657c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb83b1e17e35398a0508335d68e87d3d521d1c4cf95efc0746e8819ee0657c85", kill_on_drop: false }`
[INFO] [stdout] eb83b1e17e35398a0508335d68e87d3d521d1c4cf95efc0746e8819ee0657c85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49f7585d5bdd1ab4c6c971e335aac0ac0fa17c76d66e3336590f95cca105ee41
[INFO] running `Command { std: "docker" "start" "-a" "49f7585d5bdd1ab4c6c971e335aac0ac0fa17c76d66e3336590f95cca105ee41", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]    Compiling syn v2.0.64
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking modbus_scanner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tracing_subscriber::util::SubscriberInitExt`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tracing_subscriber::util::SubscriberInitExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::util::SubscriberInitExt`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tracing_subscriber::util::SubscriberInitExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.43s
[INFO] running `Command { std: "docker" "inspect" "49f7585d5bdd1ab4c6c971e335aac0ac0fa17c76d66e3336590f95cca105ee41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f7585d5bdd1ab4c6c971e335aac0ac0fa17c76d66e3336590f95cca105ee41", kill_on_drop: false }`
[INFO] [stdout] 49f7585d5bdd1ab4c6c971e335aac0ac0fa17c76d66e3336590f95cca105ee41