[INFO] fetching crate embedded-sensors 0.1.1...
[INFO] checking embedded-sensors-0.1.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate embedded-sensors 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate embedded-sensors 0.1.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate embedded-sensors 0.1.1
[INFO] finished tweaking crates.io crate embedded-sensors 0.1.1
[INFO] tweaked toml for crates.io crate embedded-sensors 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 80d742f868a6beb0f93c238990f0724d121169bb1250cbb9ba0f2417a7a88364
[INFO] running `Command { std: "docker" "start" "-a" "80d742f868a6beb0f93c238990f0724d121169bb1250cbb9ba0f2417a7a88364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80d742f868a6beb0f93c238990f0724d121169bb1250cbb9ba0f2417a7a88364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80d742f868a6beb0f93c238990f0724d121169bb1250cbb9ba0f2417a7a88364", kill_on_drop: false }`
[INFO] [stdout] 80d742f868a6beb0f93c238990f0724d121169bb1250cbb9ba0f2417a7a88364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c5c152c2beca3b272b4ccfabbff53730462909e36a6a91b11294f95fffacde5
[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" "8c5c152c2beca3b272b4ccfabbff53730462909e36a6a91b11294f95fffacde5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking nmea0183 v0.2.3
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking simba v0.1.5
[INFO] [stderr]     Checking nalgebra v0.21.1
[INFO] [stderr]     Checking ahrs v0.3.0
[INFO] [stderr]     Checking embedded-sensors v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `temperature`
[INFO] [stdout]   --> src/mpu6500/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub(crate) temperature: f32,
[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: field is never read: `temperature`
[INFO] [stdout]   --> src/mpu6500/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub(crate) temperature: f32,
[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 [unoptimized + debuginfo] target(s) in 26.18s
[INFO] running `Command { std: "docker" "inspect" "8c5c152c2beca3b272b4ccfabbff53730462909e36a6a91b11294f95fffacde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c5c152c2beca3b272b4ccfabbff53730462909e36a6a91b11294f95fffacde5", kill_on_drop: false }`
[INFO] [stdout] 8c5c152c2beca3b272b4ccfabbff53730462909e36a6a91b11294f95fffacde5