[INFO] cloning repository https://github.com/Joeyh021/rust-7seg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Joeyh021/rust-7seg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeyh021%2Frust-7seg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeyh021%2Frust-7seg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a2bbbcdd934feeeb3000b975003e3037fb5889d
[INFO] checking Joeyh021/rust-7seg against master#7bdae134cba57426d3c56b5de737a351762445e1 for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeyh021%2Frust-7seg" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Joeyh021/rust-7seg on toolchain 7bdae134cba57426d3c56b5de737a351762445e1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7bdae134cba57426d3c56b5de737a351762445e1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Joeyh021/rust-7seg
[INFO] finished tweaking git repo https://github.com/Joeyh021/rust-7seg
[INFO] tweaked toml for git repo https://github.com/Joeyh021/rust-7seg written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Joeyh021/rust-7seg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7bdae134cba57426d3c56b5de737a351762445e1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Joeyh021/rust-7seg against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeyh021%2Frust-7seg" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Joeyh021/rust-7seg on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Joeyh021/rust-7seg
[INFO] finished tweaking git repo https://github.com/Joeyh021/rust-7seg
[INFO] tweaked toml for git repo https://github.com/Joeyh021/rust-7seg written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Joeyh021/rust-7seg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded riscv v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a1795da31c1d4eded9e82a901996520eec0a049b8d222ee37fb9573eab61b14
[INFO] running `Command { std: "docker" "start" "-a" "1a1795da31c1d4eded9e82a901996520eec0a049b8d222ee37fb9573eab61b14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a1795da31c1d4eded9e82a901996520eec0a049b8d222ee37fb9573eab61b14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a1795da31c1d4eded9e82a901996520eec0a049b8d222ee37fb9573eab61b14", kill_on_drop: false }`
[INFO] [stdout] 1a1795da31c1d4eded9e82a901996520eec0a049b8d222ee37fb9573eab61b14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a38b03d518fa3fc3735b7abf45d0821154024f19956786ead8020931e84e6df7
[INFO] running `Command { std: "docker" "start" "-a" "a38b03d518fa3fc3735b7abf45d0821154024f19956786ead8020931e84e6df7", kill_on_drop: false }`
[INFO] [stderr]    Compiling riscv v0.8.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/lib.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | / fn panic(info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout] 44 | |     let mut serial = unsafe { Serial::new() };
[INFO] [stdout] 45 | |     if let Some(s) = info.payload().downcast_ref::<&str>() {
[INFO] [stdout] 46 | |         serial.print("panic occurred:");
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |     loop {}
[INFO] [stdout] 53 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/f0a46ffcb8bbd220fe569642e5e175207d8e3fea/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6183181fa671dc5b.rlib
[INFO] [stdout]    = note: second definition in the local crate (`rust`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/display.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Display {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 10 |     pub unsafe fn new() -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SR_RX_FIFO_VALID_DATA` is never used
[INFO] [stdout]  --> src/serial.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const SR_RX_FIFO_VALID_DATA: u32 = 1 << 0;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SR_RX_FIFO_FULL` is never used
[INFO] [stdout]  --> src/serial.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const SR_RX_FIFO_FULL: u32 = 1 << 1;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SR_TX_FIFO_EMPTY` is never used
[INFO] [stdout]  --> src/serial.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SR_TX_FIFO_EMPTY: u32 = 1 << 2;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a38b03d518fa3fc3735b7abf45d0821154024f19956786ead8020931e84e6df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a38b03d518fa3fc3735b7abf45d0821154024f19956786ead8020931e84e6df7", kill_on_drop: false }`
[INFO] [stdout] a38b03d518fa3fc3735b7abf45d0821154024f19956786ead8020931e84e6df7