[INFO] cloning repository https://github.com/twjang/raspberry-pi-gpio-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twjang/raspberry-pi-gpio-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwjang%2Fraspberry-pi-gpio-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwjang%2Fraspberry-pi-gpio-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b074bb71013469426b7560bfb14666ca26435c3e
[INFO] checking twjang/raspberry-pi-gpio-tree against master#cccf075eba88363269e8589ebb8d40874cc542d8 for pr-142681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwjang%2Fraspberry-pi-gpio-tree" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/twjang/raspberry-pi-gpio-tree
[INFO] finished tweaking git repo https://github.com/twjang/raspberry-pi-gpio-tree
[INFO] tweaked toml for git repo https://github.com/twjang/raspberry-pi-gpio-tree written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/twjang/raspberry-pi-gpio-tree on toolchain cccf075eba88363269e8589ebb8d40874cc542d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/twjang/raspberry-pi-gpio-tree 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" "+cccf075eba88363269e8589ebb8d40874cc542d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-websockets v0.11.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a948ebb4b5947548e38566cfd74c7cc1af1c9985cf51ee1800078b099340eab0
[INFO] running `Command { std: "docker" "start" "-a" "a948ebb4b5947548e38566cfd74c7cc1af1c9985cf51ee1800078b099340eab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a948ebb4b5947548e38566cfd74c7cc1af1c9985cf51ee1800078b099340eab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a948ebb4b5947548e38566cfd74c7cc1af1c9985cf51ee1800078b099340eab0", kill_on_drop: false }`
[INFO] [stdout] a948ebb4b5947548e38566cfd74c7cc1af1c9985cf51ee1800078b099340eab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9911b67cf83c1ea9e355a7d7d9b922161a22216743c9a83922ba5d359dbb2f66
[INFO] running `Command { std: "docker" "start" "-a" "9911b67cf83c1ea9e355a7d7d9b922161a22216743c9a83922ba5d359dbb2f66", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking sha1_smol v1.0.1
[INFO] [stderr]     Checking spin_sleep v1.3.1
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking rppal v0.22.1
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tokio-util v0.7.14
[INFO] [stderr]     Checking tokio-websockets v0.11.3
[INFO] [stderr]     Checking gpio_lighttree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `resp` is never read
[INFO] [stdout]   --> src/main.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         resp = "halted\n".to_string();
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `resp` is never read
[INFO] [stdout]   --> src/main.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         resp = "halted\n".to_string();
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.93s
[INFO] running `Command { std: "docker" "inspect" "9911b67cf83c1ea9e355a7d7d9b922161a22216743c9a83922ba5d359dbb2f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9911b67cf83c1ea9e355a7d7d9b922161a22216743c9a83922ba5d359dbb2f66", kill_on_drop: false }`
[INFO] [stdout] 9911b67cf83c1ea9e355a7d7d9b922161a22216743c9a83922ba5d359dbb2f66