[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<bool, Infallible>
[INFO] [stdout]    --> src/lib.rs:877:60
[INFO] [stdout]     |
[INFO] [stdout] 877 |           fn is_high(&mut self) -> Result<bool, Self::Error> {
[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<bool, Infallible>
[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<bool, Infallible>
[INFO] [stdout]    --> src/lib.rs:881:59
[INFO] [stdout]     |
[INFO] [stdout] 881 |           fn is_low(&mut self) -> Result<bool, Self::Error> {
[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<bool, Infallible>
[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<bool, Infallible>
[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<SpiFixture, PinFixture, PinFixture> {
[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
