[INFO] fetching crate scroll_phat_hd 0.3.2... [INFO] building scroll_phat_hd-0.3.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1 [INFO] extracting crate scroll_phat_hd 0.3.2 into /workspace/builds/worker-2-tc2/source [INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config [INFO] started tweaking crates.io crate scroll_phat_hd 0.3.2 [INFO] finished tweaking crates.io crate scroll_phat_hd 0.3.2 [INFO] tweaked toml for crates.io crate scroll_phat_hd 0.3.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate scroll_phat_hd 0.3.2 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 54 packages to latest compatible versions [INFO] [stderr] Adding i2cdev v0.3.2 (available: v0.6.1) [INFO] [stderr] Adding termion v1.5.6 (available: v4.0.5) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1ada561defd7b7680ecc4a496676e2e6c3e3d23ff6824207f2575d5efcadc6d7 [INFO] running `Command { std: "docker" "start" "-a" "1ada561defd7b7680ecc4a496676e2e6c3e3d23ff6824207f2575d5efcadc6d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ada561defd7b7680ecc4a496676e2e6c3e3d23ff6824207f2575d5efcadc6d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ada561defd7b7680ecc4a496676e2e6c3e3d23ff6824207f2575d5efcadc6d7", kill_on_drop: false }` [INFO] [stdout] 1ada561defd7b7680ecc4a496676e2e6c3e3d23ff6824207f2575d5efcadc6d7 [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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 58b933f4170fdb4860483408fe962247713e9990c29bebdcc6b01c2b5eeb7ffe [INFO] running `Command { std: "docker" "start" "-a" "58b933f4170fdb4860483408fe962247713e9990c29bebdcc6b01c2b5eeb7ffe", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling camino v1.2.0 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling bitflags v2.9.4 [INFO] [stderr] Compiling rustix v1.1.2 [INFO] [stderr] Compiling linux-raw-sys v0.11.0 [INFO] [stderr] Compiling pulldown-cmark v0.9.6 [INFO] [stderr] Compiling getrandom v0.3.3 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Compiling cfg-if v1.0.3 [INFO] [stderr] Compiling unicase v2.8.1 [INFO] [stderr] Compiling once_cell v1.21.3 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling fastrand v2.3.0 [INFO] [stderr] Compiling bytecount v0.6.9 [INFO] [stderr] Compiling glob v0.3.3 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Compiling nix v0.10.0 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling numtoa v0.1.0 [INFO] [stderr] Compiling termion v1.5.6 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling semver v1.0.27 [INFO] [stderr] Compiling tempfile v3.23.0 [INFO] [stderr] Compiling cargo-platform v0.1.9 [INFO] [stderr] Compiling cargo_metadata v0.14.2 [INFO] [stderr] Compiling skeptic v0.13.7 [INFO] [stderr] Compiling i2cdev v0.3.2 [INFO] [stderr] Compiling scroll_phat_hd v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/scroller.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | display: &'a mut Display, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 21 | display: &'a mut dyn Display, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/scroller.rs:26:33 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn new(display: &'a mut Display) -> Scroller<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | pub fn new(display: &'a mut dyn Display) -> Scroller<'a> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | display.register(CONFIG_BANK, MODE_REGISTER, PICTURE_MODE); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 63 | let _ = display.register(CONFIG_BANK, MODE_REGISTER, PICTURE_MODE); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | self.bank(bank); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 77 | let _ = self.bank(bank); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | self.sleep(true); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 86 | let _ = self.sleep(true); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | self.sleep(false); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 88 | let _ = self.sleep(false); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 102 | self.bank(new_frame); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 102 | let _ = self.bank(new_frame); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:114:17 [INFO] [stdout] | [INFO] [stdout] 114 | / self.device [INFO] [stdout] 115 | | .smbus_write_byte_data(COLOR_OFFSET + offset as u8, value); [INFO] [stdout] | |______________________________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 114 | let _ = self.device [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | self.frame(new_frame); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 118 | let _ = self.frame(new_frame); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.14s [INFO] running `Command { std: "docker" "inspect" "58b933f4170fdb4860483408fe962247713e9990c29bebdcc6b01c2b5eeb7ffe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58b933f4170fdb4860483408fe962247713e9990c29bebdcc6b01c2b5eeb7ffe", kill_on_drop: false }` [INFO] [stdout] 58b933f4170fdb4860483408fe962247713e9990c29bebdcc6b01c2b5eeb7ffe [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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0231a627259517eb1ce0bab81e080470f93939c9431a3af03bf0c4ebfbbfb8c3 [INFO] running `Command { std: "docker" "start" "-a" "0231a627259517eb1ce0bab81e080470f93939c9431a3af03bf0c4ebfbbfb8c3", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/scroller.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | display: &'a mut Display, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 21 | display: &'a mut dyn Display, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/scroller.rs:26:33 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn new(display: &'a mut Display) -> Scroller<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | pub fn new(display: &'a mut dyn Display) -> Scroller<'a> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | display.register(CONFIG_BANK, MODE_REGISTER, PICTURE_MODE); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 63 | let _ = display.register(CONFIG_BANK, MODE_REGISTER, PICTURE_MODE); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | self.bank(bank); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 77 | let _ = self.bank(bank); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | self.sleep(true); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 86 | let _ = self.sleep(true); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | self.sleep(false); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 88 | let _ = self.sleep(false); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 102 | self.bank(new_frame); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 102 | let _ = self.bank(new_frame); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling scroll_phat_hd v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:114:17 [INFO] [stdout] | [INFO] [stdout] 114 | / self.device [INFO] [stdout] 115 | | .smbus_write_byte_data(COLOR_OFFSET + offset as u8, value); [INFO] [stdout] | |______________________________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 114 | let _ = self.device [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | self.frame(new_frame); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 118 | let _ = self.frame(new_frame); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/scroller.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | display: &'a mut Display, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 21 | display: &'a mut dyn Display, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/scroller.rs:26:33 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn new(display: &'a mut Display) -> Scroller<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | pub fn new(display: &'a mut dyn Display) -> Scroller<'a> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | display.register(CONFIG_BANK, MODE_REGISTER, PICTURE_MODE); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 63 | let _ = display.register(CONFIG_BANK, MODE_REGISTER, PICTURE_MODE); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | self.bank(bank); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 77 | let _ = self.bank(bank); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | self.sleep(true); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 86 | let _ = self.sleep(true); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | self.sleep(false); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 88 | let _ = self.sleep(false); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 102 | self.bank(new_frame); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 102 | let _ = self.bank(new_frame); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:114:17 [INFO] [stdout] | [INFO] [stdout] 114 | / self.device [INFO] [stdout] 115 | | .smbus_write_byte_data(COLOR_OFFSET + offset as u8, value); [INFO] [stdout] | |______________________________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 114 | let _ = self.device [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/display.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | self.frame(new_frame); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 118 | let _ = self.frame(new_frame); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "0231a627259517eb1ce0bab81e080470f93939c9431a3af03bf0c4ebfbbfb8c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0231a627259517eb1ce0bab81e080470f93939c9431a3af03bf0c4ebfbbfb8c3", kill_on_drop: false }` [INFO] [stdout] 0231a627259517eb1ce0bab81e080470f93939c9431a3af03bf0c4ebfbbfb8c3