[INFO] cloning repository https://github.com/DDRDmakar/relay-modbus-controller
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DDRDmakar/relay-modbus-controller" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDDRDmakar%2Frelay-modbus-controller", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDDRDmakar%2Frelay-modbus-controller'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4f5cc2a49fb0a71840a00907711ff8899a5168f
[INFO] checking DDRDmakar/relay-modbus-controller against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDDRDmakar%2Frelay-modbus-controller" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DDRDmakar/relay-modbus-controller on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DDRDmakar/relay-modbus-controller
[INFO] finished tweaking git repo https://github.com/DDRDmakar/relay-modbus-controller
[INFO] tweaked toml for git repo https://github.com/DDRDmakar/relay-modbus-controller written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 92 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding memoffset v0.7.1 (latest: v0.9.1)
[INFO] [stderr]       Adding nix v0.26.4 (latest: v0.28.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding tokio-modbus v0.5.4 (latest: v0.11.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v4.3.0
[INFO] [stderr]   Downloaded unescaper v0.1.4
[INFO] [stderr]   Downloaded mio-serial v5.0.5
[INFO] [stderr]   Downloaded tokio-serial v5.4.4
[INFO] [stderr]   Downloaded tokio-modbus v0.5.4
[INFO] [stderr]   Downloaded fltk v1.4.28
[INFO] [stderr]   Downloaded fltk-sys v1.4.28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 459bea5c5c94f43c4a2b897896798c2a3ff2e0f33bdf16670479a88205b45381
[INFO] running `Command { std: "docker" "start" "-a" "459bea5c5c94f43c4a2b897896798c2a3ff2e0f33bdf16670479a88205b45381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "459bea5c5c94f43c4a2b897896798c2a3ff2e0f33bdf16670479a88205b45381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "459bea5c5c94f43c4a2b897896798c2a3ff2e0f33bdf16670479a88205b45381", kill_on_drop: false }`
[INFO] [stdout] 459bea5c5c94f43c4a2b897896798c2a3ff2e0f33bdf16670479a88205b45381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff46657c919485a0c8ac5011b101750b22c740cac7332131203c070db2539125
[INFO] running `Command { std: "docker" "start" "-a" "ff46657c919485a0c8ac5011b101750b22c740cac7332131203c070db2539125", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking ttf-parser v0.20.0
[INFO] [stderr]    Compiling fltk-sys v1.4.28
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling futures-macro v0.3.30
[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 unescaper v0.1.4
[INFO] [stderr]     Checking serialport v4.3.0
[INFO] [stderr]     Checking mio-serial v5.0.5
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-serial v5.4.4
[INFO] [stderr]     Checking tokio-modbus v0.5.4
[INFO] [stderr]     Checking fltk v1.4.28
[INFO] [stderr]     Checking relay-modbus-controller v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]   --> src/gui.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::path::PathBuf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 | use super::*; // variables and functions from main.rs
[INFO] [stdout]    |     -------- the item `PathBuf` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]   --> src/gui.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::path::PathBuf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 | use super::*; // variables and functions from main.rs
[INFO] [stdout]    |     -------- the item `PathBuf` is already imported here
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 21s
[INFO] running `Command { std: "docker" "inspect" "ff46657c919485a0c8ac5011b101750b22c740cac7332131203c070db2539125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff46657c919485a0c8ac5011b101750b22c740cac7332131203c070db2539125", kill_on_drop: false }`
[INFO] [stdout] ff46657c919485a0c8ac5011b101750b22c740cac7332131203c070db2539125