[INFO] fetching crate picoborgrev 0.1.1...
[INFO] checking picoborgrev-0.1.1 against master#c0b64d97beebb09325b5587abed39f4f1621026f for pr-80763
[INFO] extracting crate picoborgrev 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate picoborgrev 0.1.1 on toolchain c0b64d97beebb09325b5587abed39f4f1621026f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate picoborgrev 0.1.1
[INFO] finished tweaking crates.io crate picoborgrev 0.1.1
[INFO] tweaked toml for crates.io crate picoborgrev 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "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] 729fbc27a93118099492c035dd3a903b5522f79ae93a8625d3009de13678e752
[INFO] running `Command { std: "docker" "start" "-a" "729fbc27a93118099492c035dd3a903b5522f79ae93a8625d3009de13678e752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "729fbc27a93118099492c035dd3a903b5522f79ae93a8625d3009de13678e752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "729fbc27a93118099492c035dd3a903b5522f79ae93a8625d3009de13678e752", kill_on_drop: false }`
[INFO] [stdout] 729fbc27a93118099492c035dd3a903b5522f79ae93a8625d3009de13678e752
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0c9811e95423cb8286e9bb54c9914b6afb9626b17afbaa68931c02ef1919103
[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" "f0c9811e95423cb8286e9bb54c9914b6afb9626b17afbaa68931c02ef1919103", kill_on_drop: false }`
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking picoborgrev v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking i2cdev v0.4.4
[INFO] [stderr]     Checking linux-embedded-hal v0.2.2
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> examples/toggle_led.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     for i in 0..10 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 6.43s
[INFO] running `Command { std: "docker" "inspect" "f0c9811e95423cb8286e9bb54c9914b6afb9626b17afbaa68931c02ef1919103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0c9811e95423cb8286e9bb54c9914b6afb9626b17afbaa68931c02ef1919103", kill_on_drop: false }`
[INFO] [stdout] f0c9811e95423cb8286e9bb54c9914b6afb9626b17afbaa68931c02ef1919103