[INFO] fetching crate display-99bugs-driver 0.1.0-a...
[INFO] checking display-99bugs-driver-0.1.0-a against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate display-99bugs-driver 0.1.0-a into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate display-99bugs-driver 0.1.0-a on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate display-99bugs-driver 0.1.0-a
[INFO] finished tweaking crates.io crate display-99bugs-driver 0.1.0-a
[INFO] tweaked toml for crates.io crate display-99bugs-driver 0.1.0-a written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7fd29918913946cbfb93cca3f2c2bfabbdb51b7abc69c90f08d8b365a0efa30
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7fd29918913946cbfb93cca3f2c2bfabbdb51b7abc69c90f08d8b365a0efa30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7fd29918913946cbfb93cca3f2c2bfabbdb51b7abc69c90f08d8b365a0efa30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7fd29918913946cbfb93cca3f2c2bfabbdb51b7abc69c90f08d8b365a0efa30", kill_on_drop: false }`
[INFO] [stdout] d7fd29918913946cbfb93cca3f2c2bfabbdb51b7abc69c90f08d8b365a0efa30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82ec1a99092ad4f4899c419c3286399bb11cb56fd903f1460e8e1f00e2685ba7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "82ec1a99092ad4f4899c419c3286399bb11cb56fd903f1460e8e1f00e2685ba7", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking libc v0.2.77
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking display-99bugs-driver v0.1.0-a (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `PANEL_LINE_COUNT`
[INFO] [stdout]  --> src/display.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const PANEL_LINE_COUNT: usize = 32;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PANEL_COUNT`
[INFO] [stdout]  --> src/display.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const PANEL_COUNT: usize = 6;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PANEL_BUFFER_SIZE`
[INFO] [stdout]   --> src/display.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const PANEL_BUFFER_SIZE: usize = LINE_BUFFER_SIZE * PANEL_LINE_COUNT;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FRAME_BUFFER_SIZE`
[INFO] [stdout]   --> src/display.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const FRAME_BUFFER_SIZE: usize = PANEL_BUFFER_SIZE * PANEL_COUNT;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PANEL_MODE`
[INFO] [stdout]   --> src/display.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | const PANEL_MODE: u8 = 0x02;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FRAME_MODE`
[INFO] [stdout]   --> src/display.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | const FRAME_MODE: u8 = 0x03;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_frame`
[INFO] [stdout]   --> src/display.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_frame(&mut self, data: &[u8]) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEADER_SIZE`
[INFO] [stdout]   --> src/display.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         const HEADER_SIZE: usize = 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PANEL_LINE_COUNT`
[INFO] [stdout]  --> src/display.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const PANEL_LINE_COUNT: usize = 32;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PANEL_COUNT`
[INFO] [stdout]  --> src/display.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const PANEL_COUNT: usize = 6;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PANEL_BUFFER_SIZE`
[INFO] [stdout]   --> src/display.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const PANEL_BUFFER_SIZE: usize = LINE_BUFFER_SIZE * PANEL_LINE_COUNT;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FRAME_BUFFER_SIZE`
[INFO] [stdout]   --> src/display.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const FRAME_BUFFER_SIZE: usize = PANEL_BUFFER_SIZE * PANEL_COUNT;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PANEL_MODE`
[INFO] [stdout]   --> src/display.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | const PANEL_MODE: u8 = 0x02;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FRAME_MODE`
[INFO] [stdout]   --> src/display.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | const FRAME_MODE: u8 = 0x03;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_frame`
[INFO] [stdout]   --> src/display.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_frame(&mut self, data: &[u8]) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEADER_SIZE`
[INFO] [stdout]   --> src/display.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         const HEADER_SIZE: usize = 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.06s
[INFO] running `Command { std: "docker" "inspect" "82ec1a99092ad4f4899c419c3286399bb11cb56fd903f1460e8e1f00e2685ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ec1a99092ad4f4899c419c3286399bb11cb56fd903f1460e8e1f00e2685ba7", kill_on_drop: false }`
[INFO] [stdout] 82ec1a99092ad4f4899c419c3286399bb11cb56fd903f1460e8e1f00e2685ba7
