[INFO] fetching crate pcd8544 0.2.0...
[INFO] checking pcd8544-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pcd8544 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pcd8544 0.2.0
[INFO] finished tweaking crates.io crate pcd8544 0.2.0
[INFO] tweaked toml for crates.io crate pcd8544 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pcd8544 0.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pcd8544 0.2.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79c4327b8244ad56ca3d9355ec4f540d30838d5f2150abade38d43d87f28bf00
[INFO] running `Command { std: "docker" "start" "-a" "79c4327b8244ad56ca3d9355ec4f540d30838d5f2150abade38d43d87f28bf00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79c4327b8244ad56ca3d9355ec4f540d30838d5f2150abade38d43d87f28bf00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79c4327b8244ad56ca3d9355ec4f540d30838d5f2150abade38d43d87f28bf00", kill_on_drop: false }`
[INFO] [stdout] 79c4327b8244ad56ca3d9355ec4f540d30838d5f2150abade38d43d87f28bf00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e232097bb16883283098aa363ff64be26d1a9be70552c8be2b0e3ac08d88295
[INFO] running `Command { std: "docker" "start" "-a" "7e232097bb16883283098aa363ff64be26d1a9be70552c8be2b0e3ac08d88295", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v0.1.1
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking pcd8544 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PCD8544<DummyOutputPin, DummyOutputPin, DummyOutputPin, DummyOutputPin, DummyOutputPin, DummyOutputPin>, Infallible>
[INFO] [stdout]   --> examples/write.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut display = PCD8544::new(pcd_clk, pcd_din, pcd_dc, pcd_ce, pcd_rst, pcd_light)
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pcd8544` (example "write") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7e232097bb16883283098aa363ff64be26d1a9be70552c8be2b0e3ac08d88295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e232097bb16883283098aa363ff64be26d1a9be70552c8be2b0e3ac08d88295", kill_on_drop: false }`
[INFO] [stdout] 7e232097bb16883283098aa363ff64be26d1a9be70552c8be2b0e3ac08d88295