[INFO] fetching crate display-99bugs-driver 0.1.0-a...
[INFO] testing display-99bugs-driver-0.1.0-a against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate display-99bugs-driver 0.1.0-a into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate display-99bugs-driver 0.1.0-a on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.6.0
[INFO] [stderr]   Downloaded spidev v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef6782f305b94a17cf6c86c012b2ca45a5ef8d1349583f8c29df99ea7e6a6a0d
[INFO] running `Command { std: "docker" "start" "-a" "ef6782f305b94a17cf6c86c012b2ca45a5ef8d1349583f8c29df99ea7e6a6a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef6782f305b94a17cf6c86c012b2ca45a5ef8d1349583f8c29df99ea7e6a6a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6782f305b94a17cf6c86c012b2ca45a5ef8d1349583f8c29df99ea7e6a6a0d", kill_on_drop: false }`
[INFO] [stdout] ef6782f305b94a17cf6c86c012b2ca45a5ef8d1349583f8c29df99ea7e6a6a0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 328653681f9a3ca15a6d6ce706dd206d875c72c81a5c79b15791634e18212c11
[INFO] running `Command { std: "docker" "start" "-a" "328653681f9a3ca15a6d6ce706dd206d875c72c81a5c79b15791634e18212c11", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling spidev v0.3.0
[INFO] [stderr]    Compiling display-99bugs-driver v0.1.0-a (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `PANEL_LINE_COUNT` is never used
[INFO] [stdout]  --> src/display.rs:7:11
[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 `PANEL_COUNT` is never used
[INFO] [stdout]  --> src/display.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const PANEL_COUNT: usize = 6;
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PANEL_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/display.rs:12:11
[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 `FRAME_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/display.rs:13:11
[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 `PANEL_MODE` is never used
[INFO] [stdout]   --> src/display.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const PANEL_MODE: u8 = 0x02;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_MODE` is never used
[INFO] [stdout]   --> src/display.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const FRAME_MODE: u8 = 0x03;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_frame` is never used
[INFO] [stdout]   --> src/display.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Display {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn write_frame(&mut self, data: &[u8]) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "328653681f9a3ca15a6d6ce706dd206d875c72c81a5c79b15791634e18212c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "328653681f9a3ca15a6d6ce706dd206d875c72c81a5c79b15791634e18212c11", kill_on_drop: false }`
[INFO] [stdout] 328653681f9a3ca15a6d6ce706dd206d875c72c81a5c79b15791634e18212c11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ce53057bb6b674dd84c033ba50f6354d8b3e332e7b204c303cf5b4552b6639d
[INFO] running `Command { std: "docker" "start" "-a" "3ce53057bb6b674dd84c033ba50f6354d8b3e332e7b204c303cf5b4552b6639d", kill_on_drop: false }`
[INFO] [stderr]    Compiling display-99bugs-driver v0.1.0-a (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `PANEL_LINE_COUNT` is never used
[INFO] [stdout]  --> src/display.rs:7:11
[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 `PANEL_COUNT` is never used
[INFO] [stdout]  --> src/display.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const PANEL_COUNT: usize = 6;
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PANEL_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/display.rs:12:11
[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 `FRAME_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/display.rs:13:11
[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 `PANEL_MODE` is never used
[INFO] [stdout]   --> src/display.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const PANEL_MODE: u8 = 0x02;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_MODE` is never used
[INFO] [stdout]   --> src/display.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const FRAME_MODE: u8 = 0x03;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_frame` is never used
[INFO] [stdout]   --> src/display.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Display {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn write_frame(&mut self, data: &[u8]) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "3ce53057bb6b674dd84c033ba50f6354d8b3e332e7b204c303cf5b4552b6639d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ce53057bb6b674dd84c033ba50f6354d8b3e332e7b204c303cf5b4552b6639d", kill_on_drop: false }`
[INFO] [stdout] 3ce53057bb6b674dd84c033ba50f6354d8b3e332e7b204c303cf5b4552b6639d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 14f768ce888c2aaf285990cac4c8686f383ea0a99bf95587ebc877ad484f521b
[INFO] running `Command { std: "docker" "start" "-a" "14f768ce888c2aaf285990cac4c8686f383ea0a99bf95587ebc877ad484f521b", kill_on_drop: false }`
[INFO] [stderr] warning: constant `PANEL_LINE_COUNT` is never used
[INFO] [stderr]  --> src/display.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub const PANEL_LINE_COUNT: usize = 32;
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PANEL_COUNT` is never used
[INFO] [stderr]  --> src/display.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const PANEL_COUNT: usize = 6;
[INFO] [stderr]   |           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PANEL_BUFFER_SIZE` is never used
[INFO] [stderr]   --> src/display.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub const PANEL_BUFFER_SIZE: usize = LINE_BUFFER_SIZE * PANEL_LINE_COUNT;
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FRAME_BUFFER_SIZE` is never used
[INFO] [stderr]   --> src/display.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const FRAME_BUFFER_SIZE: usize = PANEL_BUFFER_SIZE * PANEL_COUNT;
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PANEL_MODE` is never used
[INFO] [stderr]   --> src/display.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 | const PANEL_MODE: u8 = 0x02;
[INFO] [stderr]    |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FRAME_MODE` is never used
[INFO] [stderr]   --> src/display.rs:23:7
[INFO] [stderr]    |
[INFO] [stderr] 23 | const FRAME_MODE: u8 = 0x03;
[INFO] [stderr]    |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `write_frame` is never used
[INFO] [stderr]   --> src/display.rs:55:12
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl Display {
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 55 |     pub fn write_frame(&mut self, data: &[u8]) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `display-99bugs-driver` (bin "display-99bugs-driver" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/display_99bugs_driver-11a9ceda1c9c226d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "14f768ce888c2aaf285990cac4c8686f383ea0a99bf95587ebc877ad484f521b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f768ce888c2aaf285990cac4c8686f383ea0a99bf95587ebc877ad484f521b", kill_on_drop: false }`
[INFO] [stdout] 14f768ce888c2aaf285990cac4c8686f383ea0a99bf95587ebc877ad484f521b
