[INFO] cloning repository https://github.com/liufuyang/usb-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liufuyang/usb-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliufuyang%2Fusb-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliufuyang%2Fusb-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea031790a5a96ef20211e4417dfe73eb3674edf3
[INFO] checking liufuyang/usb-1 against master#84e729a59f216cc64755788a470f165429a731f4 for pr-123737-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliufuyang%2Fusb-1" "/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/liufuyang/usb-1 on toolchain 84e729a59f216cc64755788a470f165429a731f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84e729a59f216cc64755788a470f165429a731f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/liufuyang/usb-1
[INFO] finished tweaking git repo https://github.com/liufuyang/usb-1
[INFO] tweaked toml for git repo https://github.com/liufuyang/usb-1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/liufuyang/usb-1 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" "+84e729a59f216cc64755788a470f165429a731f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v4.0.1
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded crc16 v0.4.0
[INFO] [stderr]   Downloaded egui_web v0.14.1
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded object v0.26.2
[INFO] [stderr]   Downloaded egui v0.14.2
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded libudev v0.2.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+84e729a59f216cc64755788a470f165429a731f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4b69907e3c53ab4873574e19f0fddc01e8a2a719995a2aba2e8f7c10ceb3597
[INFO] running `Command { std: "docker" "start" "-a" "c4b69907e3c53ab4873574e19f0fddc01e8a2a719995a2aba2e8f7c10ceb3597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4b69907e3c53ab4873574e19f0fddc01e8a2a719995a2aba2e8f7c10ceb3597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4b69907e3c53ab4873574e19f0fddc01e8a2a719995a2aba2e8f7c10ceb3597", kill_on_drop: false }`
[INFO] [stdout] c4b69907e3c53ab4873574e19f0fddc01e8a2a719995a2aba2e8f7c10ceb3597
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+84e729a59f216cc64755788a470f165429a731f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5af25cc7bbb66c55411931920b3165d04c49a6981c2cb299ad75fba129e141fd
[INFO] running `Command { std: "docker" "start" "-a" "5af25cc7bbb66c55411931920b3165d04c49a6981c2cb299ad75fba129e141fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling minimal-lexical v0.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling nom v7.0.0
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling winit v0.25.0
[INFO] [stderr]     Checking emath v0.14.0
[INFO] [stderr]     Checking atomic_refcell v0.1.7
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking takeable-option v0.5.0
[INFO] [stderr]     Checking ordered-float v2.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking webbrowser v0.5.5
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking owned_ttf_parser v0.12.1
[INFO] [stderr]     Checking ab_glyph v0.2.11
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glium v0.30.1
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking epaint v0.14.0
[INFO] [stderr]     Checking mio-misc v1.2.1
[INFO] [stderr]     Checking egui v0.14.2
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking wayland-commons v0.28.6
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking serialport v4.0.1
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking wayland-egl v0.28.6
[INFO] [stderr]     Checking epi v0.14.0
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking x11-clipboard v0.5.2
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking smithay-client-toolkit v0.14.0
[INFO] [stderr]     Checking smithay-clipboard v0.6.4
[INFO] [stderr]     Checking copypasta v0.7.1
[INFO] [stderr]     Checking glutin v0.27.0
[INFO] [stderr]     Checking egui_glium v0.14.0
[INFO] [stderr]     Checking eframe v0.14.0
[INFO] [stderr]     Checking usb-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/daly/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     port.write_all(decoded.as_slice());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let _ = port.write_all(decoded.as_slice());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/daly/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     port.write_all(decoded.as_slice());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let _ = port.write_all(decoded.as_slice());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.05s
[INFO] running `Command { std: "docker" "inspect" "5af25cc7bbb66c55411931920b3165d04c49a6981c2cb299ad75fba129e141fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5af25cc7bbb66c55411931920b3165d04c49a6981c2cb299ad75fba129e141fd", kill_on_drop: false }`
[INFO] [stdout] 5af25cc7bbb66c55411931920b3165d04c49a6981c2cb299ad75fba129e141fd