[INFO] cloning repository https://github.com/tilersmyth/rust-serialport-watcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tilersmyth/rust-serialport-watcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftilersmyth%2Frust-serialport-watcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftilersmyth%2Frust-serialport-watcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2e1a541c55d74b03f131f077b0e780b3e1de6b6
[INFO] testing tilersmyth/rust-serialport-watcher against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftilersmyth%2Frust-serialport-watcher" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tilersmyth/rust-serialport-watcher on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tilersmyth/rust-serialport-watcher
[INFO] finished tweaking git repo https://github.com/tilersmyth/rust-serialport-watcher
[INFO] tweaked toml for git repo https://github.com/tilersmyth/rust-serialport-watcher written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tilersmyth/rust-serialport-watcher 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" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2f04abdbf9bff6b07de33610bdc260ee53718dba9a79a09e65ed05d7a61e93b
[INFO] running `Command { std: "docker" "start" "-a" "a2f04abdbf9bff6b07de33610bdc260ee53718dba9a79a09e65ed05d7a61e93b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2f04abdbf9bff6b07de33610bdc260ee53718dba9a79a09e65ed05d7a61e93b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f04abdbf9bff6b07de33610bdc260ee53718dba9a79a09e65ed05d7a61e93b", kill_on_drop: false }`
[INFO] [stdout] a2f04abdbf9bff6b07de33610bdc260ee53718dba9a79a09e65ed05d7a61e93b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b68abecd28515a0c7c40e1d20aa86cf19fa68af9d521b0bea6e147c554051ab8
[INFO] running `Command { std: "docker" "start" "-a" "b68abecd28515a0c7c40e1d20aa86cf19fa68af9d521b0bea6e147c554051ab8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling libudev v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling unescaper v0.1.4
[INFO] [stderr]    Compiling serialport v4.3.0
[INFO] [stderr]    Compiling rust-serial-detector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/reader.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct ScaleReader {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     port: Arc<Mutex<String>>,
[INFO] [stdout] 11 |     value: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.75s
[INFO] running `Command { std: "docker" "inspect" "b68abecd28515a0c7c40e1d20aa86cf19fa68af9d521b0bea6e147c554051ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b68abecd28515a0c7c40e1d20aa86cf19fa68af9d521b0bea6e147c554051ab8", kill_on_drop: false }`
[INFO] [stdout] b68abecd28515a0c7c40e1d20aa86cf19fa68af9d521b0bea6e147c554051ab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 194873b40855a18f7ebd789fdc794d3494efa74fbf6e9874577ffbab3400ba3d
[INFO] running `Command { std: "docker" "start" "-a" "194873b40855a18f7ebd789fdc794d3494efa74fbf6e9874577ffbab3400ba3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-serial-detector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/reader.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct ScaleReader {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     port: Arc<Mutex<String>>,
[INFO] [stdout] 11 |     value: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "194873b40855a18f7ebd789fdc794d3494efa74fbf6e9874577ffbab3400ba3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194873b40855a18f7ebd789fdc794d3494efa74fbf6e9874577ffbab3400ba3d", kill_on_drop: false }`
[INFO] [stdout] 194873b40855a18f7ebd789fdc794d3494efa74fbf6e9874577ffbab3400ba3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 413b2b3b30b75fc3a06995c3b606ffe6980b11f3196b9498250c868386993bca
[INFO] running `Command { std: "docker" "start" "-a" "413b2b3b30b75fc3a06995c3b606ffe6980b11f3196b9498250c868386993bca", kill_on_drop: false }`
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]   --> src/reader.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct ScaleReader {
[INFO] [stderr]    |            ----------- field in this struct
[INFO] [stderr] 10 |     port: Arc<Mutex<String>>,
[INFO] [stderr] 11 |     value: String,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-serial-detector` (bin "rust-serial-detector" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_serial_detector-58e7e50e3ea53dbd)
[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" "413b2b3b30b75fc3a06995c3b606ffe6980b11f3196b9498250c868386993bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413b2b3b30b75fc3a06995c3b606ffe6980b11f3196b9498250c868386993bca", kill_on_drop: false }`
[INFO] [stdout] 413b2b3b30b75fc3a06995c3b606ffe6980b11f3196b9498250c868386993bca