[INFO] fetching crate leptrino-force-torque-sensor 0.1.0...
[INFO] checking leptrino-force-torque-sensor-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate leptrino-force-torque-sensor 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate leptrino-force-torque-sensor 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate leptrino-force-torque-sensor 0.1.0
[INFO] finished tweaking crates.io crate leptrino-force-torque-sensor 0.1.0
[INFO] tweaked toml for crates.io crate leptrino-force-torque-sensor 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate leptrino-force-torque-sensor 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v4.0.0
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded pair_macro v0.1.4
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded thread_local v1.1.2
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded cc v1.0.66
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded libc v0.2.84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06db93d4d03f6f7da86128a5f0d12e0fe0e1ca4f33560a78097d1a9d12f3eba8
[INFO] running `Command { std: "docker" "start" "-a" "06db93d4d03f6f7da86128a5f0d12e0fe0e1ca4f33560a78097d1a9d12f3eba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06db93d4d03f6f7da86128a5f0d12e0fe0e1ca4f33560a78097d1a9d12f3eba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06db93d4d03f6f7da86128a5f0d12e0fe0e1ca4f33560a78097d1a9d12f3eba8", kill_on_drop: false }`
[INFO] [stdout] 06db93d4d03f6f7da86128a5f0d12e0fe0e1ca4f33560a78097d1a9d12f3eba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9bc36d734ee5b0ccc2ee5669f068b9955cd0c451fc2dcb3af62dce8b203a6aa
[INFO] running `Command { std: "docker" "start" "-a" "b9bc36d734ee5b0ccc2ee5669f068b9955cd0c451fc2dcb3af62dce8b203a6aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking pair_macro v0.1.4
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serialport v4.0.0
[INFO] [stderr]     Checking leptrino-force-torque-sensor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serialport` is imported redundantly
[INFO] [stdout]  --> examples/demo.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use leptrino_force_torque_sensor::serialport;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `serialport` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 4.37s
[INFO] running `Command { std: "docker" "inspect" "b9bc36d734ee5b0ccc2ee5669f068b9955cd0c451fc2dcb3af62dce8b203a6aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9bc36d734ee5b0ccc2ee5669f068b9955cd0c451fc2dcb3af62dce8b203a6aa", kill_on_drop: false }`
[INFO] [stdout] b9bc36d734ee5b0ccc2ee5669f068b9955cd0c451fc2dcb3af62dce8b203a6aa
[INFO] checking leptrino-force-torque-sensor-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate leptrino-force-torque-sensor 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate leptrino-force-torque-sensor 0.1.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate leptrino-force-torque-sensor 0.1.0
[INFO] finished tweaking crates.io crate leptrino-force-torque-sensor 0.1.0
[INFO] tweaked toml for crates.io crate leptrino-force-torque-sensor 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate leptrino-force-torque-sensor 0.1.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46e9da749b47c20a857cd5b6431d4826a64ef3279bd1b6bdb1691b6a51db95f5
[INFO] running `Command { std: "docker" "start" "-a" "46e9da749b47c20a857cd5b6431d4826a64ef3279bd1b6bdb1691b6a51db95f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46e9da749b47c20a857cd5b6431d4826a64ef3279bd1b6bdb1691b6a51db95f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46e9da749b47c20a857cd5b6431d4826a64ef3279bd1b6bdb1691b6a51db95f5", kill_on_drop: false }`
[INFO] [stdout] 46e9da749b47c20a857cd5b6431d4826a64ef3279bd1b6bdb1691b6a51db95f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ccb697335de50ea02b88c47946ee224e8e615f45d7867dd8887ab95800bbe45
[INFO] running `Command { std: "docker" "start" "-a" "6ccb697335de50ea02b88c47946ee224e8e615f45d7867dd8887ab95800bbe45", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking pair_macro v0.1.4
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serialport v4.0.0
[INFO] [stderr]     Checking leptrino-force-torque-sensor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serialport` is imported redundantly
[INFO] [stdout]  --> examples/demo.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use leptrino_force_torque_sensor::serialport;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `serialport` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.64s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6ccb697335de50ea02b88c47946ee224e8e615f45d7867dd8887ab95800bbe45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ccb697335de50ea02b88c47946ee224e8e615f45d7867dd8887ab95800bbe45", kill_on_drop: false }`
[INFO] [stdout] 6ccb697335de50ea02b88c47946ee224e8e615f45d7867dd8887ab95800bbe45