[INFO] fetching crate mh-zx-driver 0.2.0...
[INFO] checking mh-zx-driver-0.2.0 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate mh-zx-driver 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mh-zx-driver 0.2.0 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mh-zx-driver 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mh-zx-driver 0.2.0
[INFO] tweaked toml for crates.io crate mh-zx-driver 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate mh-zx-driver 0.2.0 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" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linux-embedded-hal v0.3.0
[INFO] [stderr]   Downloaded sysfs_gpio v0.5.4
[INFO] [stderr]   Downloaded prometheus v0.8.0
[INFO] [stderr]   Downloaded embedded-hal-mock v0.7.2
[INFO] [stderr]   Downloaded embedded-hal v0.2.4
[INFO] [stderr]   Downloaded i2cdev v0.4.4
[INFO] [stderr]   Downloaded serial-core v0.4.0
[INFO] [stderr]   Downloaded prometheus v0.9.0
[INFO] [stderr]   Downloaded protobuf v2.14.0
[INFO] [stderr]   Downloaded spidev v0.4.0
[INFO] [stderr]   Downloaded nb v0.1.2
[INFO] [stderr]   Downloaded ioctl-rs v0.1.6
[INFO] [stderr]   Downloaded serial-unix v0.4.0
[INFO] [stderr]   Downloaded syn v1.0.34
[INFO] [stderr]   Downloaded prometheus_exporter v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7274799a3777155163ba06671663026cc49d92d972b98dddb52a93985e50868f
[INFO] running `Command { std: "docker" "start" "-a" "7274799a3777155163ba06671663026cc49d92d972b98dddb52a93985e50868f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7274799a3777155163ba06671663026cc49d92d972b98dddb52a93985e50868f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7274799a3777155163ba06671663026cc49d92d972b98dddb52a93985e50868f", kill_on_drop: false }`
[INFO] [stdout] 7274799a3777155163ba06671663026cc49d92d972b98dddb52a93985e50868f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74db101dc99e981210cf9d1526d3c4c5149ac4182dd0b28a695a5d762d171bc7
[INFO] running `Command { std: "docker" "start" "-a" "74db101dc99e981210cf9d1526d3c4c5149ac4182dd0b28a695a5d762d171bc7", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking embedded-hal-mock v0.7.2
[INFO] [stderr]     Checking mh-zx-driver v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct InvalidResponse(Packet);
[INFO] [stdout]     |            --------------- ^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `InvalidResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct InvalidResponse(Packet);
[INFO] [stdout]     |            --------------- ^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `InvalidResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 0.70s
[INFO] running `Command { std: "docker" "inspect" "74db101dc99e981210cf9d1526d3c4c5149ac4182dd0b28a695a5d762d171bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74db101dc99e981210cf9d1526d3c4c5149ac4182dd0b28a695a5d762d171bc7", kill_on_drop: false }`
[INFO] [stdout] 74db101dc99e981210cf9d1526d3c4c5149ac4182dd0b28a695a5d762d171bc7