[INFO] fetching crate ls013b7dh03 0.4.2... [INFO] checking ls013b7dh03-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate ls013b7dh03 0.4.2 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate ls013b7dh03 0.4.2 [INFO] finished tweaking crates.io crate ls013b7dh03 0.4.2 [INFO] tweaked toml for crates.io crate ls013b7dh03 0.4.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ls013b7dh03 0.4.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 9 packages to latest compatible versions [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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8f24ca0622deddcd276407e5282197d995a4da47415600159bcb5ccd8e0feca1 [INFO] running `Command { std: "docker" "start" "-a" "8f24ca0622deddcd276407e5282197d995a4da47415600159bcb5ccd8e0feca1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f24ca0622deddcd276407e5282197d995a4da47415600159bcb5ccd8e0feca1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f24ca0622deddcd276407e5282197d995a4da47415600159bcb5ccd8e0feca1", kill_on_drop: false }` [INFO] [stdout] 8f24ca0622deddcd276407e5282197d995a4da47415600159bcb5ccd8e0feca1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8df0a3ac5d73bdba32ff3a139e44290b82e51fa5d0b9b6e3007732a428b968ae [INFO] running `Command { std: "docker" "start" "-a" "8df0a3ac5d73bdba32ff3a139e44290b82e51fa5d0b9b6e3007732a428b968ae", kill_on_drop: false }` [INFO] [stderr] Checking embedded-hal v1.0.0 [INFO] [stderr] Checking ls013b7dh03 v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:877:60 [INFO] [stdout] | [INFO] [stdout] 877 | fn is_high(&mut self) -> Result { [INFO] [stdout] | ____________________________________________________________^ [INFO] [stdout] 878 | | Ok(self.state == PinState::High) [INFO] [stdout] 879 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:878:13 [INFO] [stdout] | [INFO] [stdout] 878 | Ok(self.state == PinState::High) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:881:59 [INFO] [stdout] | [INFO] [stdout] 881 | fn is_low(&mut self) -> Result { [INFO] [stdout] | ___________________________________________________________^ [INFO] [stdout] 882 | | Ok(!self.is_high().unwrap()) [INFO] [stdout] 883 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:882:13 [INFO] [stdout] | [INFO] [stdout] 882 | Ok(!self.is_high().unwrap()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:882:17 [INFO] [stdout] | [INFO] [stdout] 882 | Ok(!self.is_high().unwrap()) [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:935:17 [INFO] [stdout] | [INFO] [stdout] 935 | buffer: &mut [u8; BUF_SIZE], [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ the lifetime is elided here [INFO] [stdout] 936 | ) -> Ls013b7dh03 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 936 | ) -> Ls013b7dh03<'_, SpiFixture, PinFixture, PinFixture> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `ls013b7dh03` (lib test) due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "8df0a3ac5d73bdba32ff3a139e44290b82e51fa5d0b9b6e3007732a428b968ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8df0a3ac5d73bdba32ff3a139e44290b82e51fa5d0b9b6e3007732a428b968ae", kill_on_drop: false }` [INFO] [stdout] 8df0a3ac5d73bdba32ff3a139e44290b82e51fa5d0b9b6e3007732a428b968ae