[INFO] fetching crate ws2818-rgb-led-spi-driver 2.0.0...
[INFO] testing ws2818-rgb-led-spi-driver-2.0.0 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take3
[INFO] extracting crate ws2818-rgb-led-spi-driver 2.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ws2818-rgb-led-spi-driver 2.0.0 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ws2818-rgb-led-spi-driver 2.0.0
[INFO] finished tweaking crates.io crate ws2818-rgb-led-spi-driver 2.0.0
[INFO] tweaked toml for crates.io crate ws2818-rgb-led-spi-driver 2.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0f93323cfd6c31da251e7057d5f0e169aa5d5809a81389ab09b70c0ef7dd6ba
[INFO] running `Command { std: "docker" "start" "-a" "d0f93323cfd6c31da251e7057d5f0e169aa5d5809a81389ab09b70c0ef7dd6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0f93323cfd6c31da251e7057d5f0e169aa5d5809a81389ab09b70c0ef7dd6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0f93323cfd6c31da251e7057d5f0e169aa5d5809a81389ab09b70c0ef7dd6ba", kill_on_drop: false }`
[INFO] [stdout] d0f93323cfd6c31da251e7057d5f0e169aa5d5809a81389ab09b70c0ef7dd6ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 2739e0b298475e52f8709e9c33b3ae4903426b5638893a9ae133f21bcf978bb6
[INFO] running `Command { std: "docker" "start" "-a" "2739e0b298475e52f8709e9c33b3ae4903426b5638893a9ae133f21bcf978bb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling spidev v0.4.1
[INFO] [stderr]    Compiling ws2818-rgb-led-spi-driver v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::encoding::encode_rgb_slice`
[INFO] [stdout]  --> src/adapter_spi.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::encoding::encode_rgb_slice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::fmt::format`
[INFO] [stdout]  --> src/adapter_spi.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use alloc::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
[INFO] running `Command { std: "docker" "inspect" "2739e0b298475e52f8709e9c33b3ae4903426b5638893a9ae133f21bcf978bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2739e0b298475e52f8709e9c33b3ae4903426b5638893a9ae133f21bcf978bb6", kill_on_drop: false }`
[INFO] [stdout] 2739e0b298475e52f8709e9c33b3ae4903426b5638893a9ae133f21bcf978bb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] c49120741277ceaf2e91bb6f45cb3d8303858470f15934a92ed55d826299f467
[INFO] running `Command { std: "docker" "start" "-a" "c49120741277ceaf2e91bb6f45cb3d8303858470f15934a92ed55d826299f467", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::encoding::encode_rgb_slice`
[INFO] [stdout]  --> src/adapter_spi.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::encoding::encode_rgb_slice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::fmt::format`
[INFO] [stdout]  --> src/adapter_spi.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use alloc::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ws2818-rgb-led-spi-driver v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::encoding::encode_rgb_slice`
[INFO] [stdout]  --> src/adapter_spi.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::encoding::encode_rgb_slice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::fmt::format`
[INFO] [stdout]  --> src/adapter_spi.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use alloc::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "c49120741277ceaf2e91bb6f45cb3d8303858470f15934a92ed55d826299f467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c49120741277ceaf2e91bb6f45cb3d8303858470f15934a92ed55d826299f467", kill_on_drop: false }`
[INFO] [stdout] c49120741277ceaf2e91bb6f45cb3d8303858470f15934a92ed55d826299f467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 89d55b64e0db5043763f0792f238132e38cffb5a013219e5db70ea7c117269aa
[INFO] running `Command { std: "docker" "start" "-a" "89d55b64e0db5043763f0792f238132e38cffb5a013219e5db70ea7c117269aa", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::encoding::encode_rgb_slice`
[INFO] [stderr]  --> src/adapter_spi.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::encoding::encode_rgb_slice;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `alloc::fmt::format`
[INFO] [stderr]  --> src/adapter_spi.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use alloc::fmt::format;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ws2818-rgb-led-spi-driver` (lib) generated 2 warnings
[INFO] [stderr] warning: `ws2818-rgb-led-spi-driver` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/ws2818_rgb_led_spi_driver-e92aed80a081299a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "89d55b64e0db5043763f0792f238132e38cffb5a013219e5db70ea7c117269aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89d55b64e0db5043763f0792f238132e38cffb5a013219e5db70ea7c117269aa", kill_on_drop: false }`
[INFO] [stdout] 89d55b64e0db5043763f0792f238132e38cffb5a013219e5db70ea7c117269aa