[INFO] cloning repository https://github.com/besselfunct/mcp9600
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/besselfunct/mcp9600" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbesselfunct%2Fmcp9600", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbesselfunct%2Fmcp9600'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3782bc203f881f10e88ab3f0ba5d4f4191b7337
[INFO] checking besselfunct/mcp9600/a3782bc203f881f10e88ab3f0ba5d4f4191b7337 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbesselfunct%2Fmcp9600" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/besselfunct/mcp9600 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/besselfunct/mcp9600
[INFO] finished tweaking git repo https://github.com/besselfunct/mcp9600
[INFO] tweaked toml for git repo https://github.com/besselfunct/mcp9600 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/besselfunct/mcp9600 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33cd1daa35c5798343268c0128785e05b4c45425d9a90164e63e1f6ab5f5f50c
[INFO] running `Command { std: "docker" "start" "-a" "33cd1daa35c5798343268c0128785e05b4c45425d9a90164e63e1f6ab5f5f50c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33cd1daa35c5798343268c0128785e05b4c45425d9a90164e63e1f6ab5f5f50c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33cd1daa35c5798343268c0128785e05b4c45425d9a90164e63e1f6ab5f5f50c", kill_on_drop: false }`
[INFO] [stdout] 33cd1daa35c5798343268c0128785e05b4c45425d9a90164e63e1f6ab5f5f50c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b47103384c9bfe7a7294ba91d5cc863ce81a67b6768d300725e753dfdf6e4feb
[INFO] running `Command { std: "docker" "start" "-a" "b47103384c9bfe7a7294ba91d5cc863ce81a67b6768d300725e753dfdf6e4feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking mcp9600 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `read_register` is never used
[INFO] [stdout]   --> src/lib.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | / impl<I2C, E> MCP9600<I2C>
[INFO] [stdout] 21 | | where
[INFO] [stdout] 22 | |     I2C: i2c::WriteRead<Error = E> + i2c::Write<Error = E>,
[INFO] [stdout]    | |___________________________________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |       fn read_register(&mut self, register: Register) -> Result<u8, E> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[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: method `read_register` is never used
[INFO] [stdout]   --> src/lib.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | / impl<I2C, E> MCP9600<I2C>
[INFO] [stdout] 21 | | where
[INFO] [stdout] 22 | |     I2C: i2c::WriteRead<Error = E> + i2c::Write<Error = E>,
[INFO] [stdout]    | |___________________________________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |       fn read_register(&mut self, register: Register) -> Result<u8, E> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 3.87s
[INFO] running `Command { std: "docker" "inspect" "b47103384c9bfe7a7294ba91d5cc863ce81a67b6768d300725e753dfdf6e4feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b47103384c9bfe7a7294ba91d5cc863ce81a67b6768d300725e753dfdf6e4feb", kill_on_drop: false }`
[INFO] [stdout] b47103384c9bfe7a7294ba91d5cc863ce81a67b6768d300725e753dfdf6e4feb