[INFO] fetching crate i2cdev 0.5.0...
[INFO] checking i2cdev-0.5.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate i2cdev 0.5.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate i2cdev 0.5.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate i2cdev 0.5.0
[INFO] finished tweaking crates.io crate i2cdev 0.5.0
[INFO] tweaked toml for crates.io crate i2cdev 0.5.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate i2cdev 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded docopt v1.1.1
[INFO] [stderr]   Downloaded nix v0.22.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2dc42235b99763515d2bc5baf8f95e96ddc658e03c48e4af125014201033b249
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2dc42235b99763515d2bc5baf8f95e96ddc658e03c48e4af125014201033b249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dc42235b99763515d2bc5baf8f95e96ddc658e03c48e4af125014201033b249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc42235b99763515d2bc5baf8f95e96ddc658e03c48e4af125014201033b249", kill_on_drop: false }`
[INFO] [stdout] 2dc42235b99763515d2bc5baf8f95e96ddc658e03c48e4af125014201033b249
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6190348895b31cf6dc0439a7b2c59e431176042d34f4c512b867e8cda8c1c749
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6190348895b31cf6dc0439a7b2c59e431176042d34f4c512b867e8cda8c1c749", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]     Checking i2cdev v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stdout] warning: field is never read: `joystick_x`
[INFO] [stdout]   --> examples/nunchuck.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         joystick_x: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `joystick_y`
[INFO] [stdout]   --> examples/nunchuck.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         joystick_y: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `accel_x`
[INFO] [stdout]   --> examples/nunchuck.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         accel_x: u16, // 10-bit
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `accel_y`
[INFO] [stdout]   --> examples/nunchuck.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         accel_y: u16, // 10-bit
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `accel_z`
[INFO] [stdout]   --> examples/nunchuck.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         accel_z: u16, // 10-bit
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `c_button_pressed`
[INFO] [stdout]   --> examples/nunchuck.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         c_button_pressed: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z_button_pressed`
[INFO] [stdout]   --> examples/nunchuck.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         z_button_pressed: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.49s
[INFO] running `Command { std: "docker" "inspect" "6190348895b31cf6dc0439a7b2c59e431176042d34f4c512b867e8cda8c1c749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6190348895b31cf6dc0439a7b2c59e431176042d34f4c512b867e8cda8c1c749", kill_on_drop: false }`
[INFO] [stdout] 6190348895b31cf6dc0439a7b2c59e431176042d34f4c512b867e8cda8c1c749