[INFO] cloning repository https://github.com/systemctl603/rust_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/systemctl603/rust_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystemctl603%2Frust_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystemctl603%2Frust_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] becd1dd7cc5930efa061291a629efb56caff5353
[INFO] checking systemctl603/rust_os against master#ba7e63b63871a429533c189adbfb1d9a6337e000 for pr-135331-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystemctl603%2Frust_os" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/systemctl603/rust_os
[INFO] finished tweaking git repo https://github.com/systemctl603/rust_os
[INFO] tweaked toml for git repo https://github.com/systemctl603/rust_os written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/systemctl603/rust_os on toolchain ba7e63b63871a429533c189adbfb1d9a6337e000
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba7e63b63871a429533c189adbfb1d9a6337e000" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/systemctl603/rust_os 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" "+ba7e63b63871a429533c189adbfb1d9a6337e000" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+ba7e63b63871a429533c189adbfb1d9a6337e000" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8713784cf2961d59edc3831719b525b4f3fdd7d0ba3539eb26d8796fa6be1033
[INFO] running `Command { std: "docker" "start" "-a" "8713784cf2961d59edc3831719b525b4f3fdd7d0ba3539eb26d8796fa6be1033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8713784cf2961d59edc3831719b525b4f3fdd7d0ba3539eb26d8796fa6be1033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8713784cf2961d59edc3831719b525b4f3fdd7d0ba3539eb26d8796fa6be1033", kill_on_drop: false }`
[INFO] [stdout] 8713784cf2961d59edc3831719b525b4f3fdd7d0ba3539eb26d8796fa6be1033
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+ba7e63b63871a429533c189adbfb1d9a6337e000" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8719547f753558ab894d05d4397c750b44289d4c541d95f6c892d12f640e7144
[INFO] running `Command { std: "docker" "start" "-a" "8719547f753558ab894d05d4397c750b44289d4c541d95f6c892d12f640e7144", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.22
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rust_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / fn panic(_inf: &PanicInfo) -> ! {
[INFO] [stdout] 16 | |     println!("{}", _inf);
[INFO] [stdout] 17 | |     loop {}
[INFO] [stdout] 18 | | }
[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/ba7e63b63871a429533c189adbfb1d9a6337e000/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6e76fd4000f66c66.rlib
[INFO] [stdout]    = note: second definition in the local crate (`rust_os`)
[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_os` (bin "rust_os" test) due to 1 previous error; 1 warning emitted
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     panic!("Panic message");
[INFO] [stdout]    |     ----------------------- any code following this expression is unreachable
[INFO] [stdout] 11 |     loop {}
[INFO] [stdout]    |     ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/vga_buffer.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt::{self, Write};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmeta68f9Zw"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_os` (bin "rust_os") due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8719547f753558ab894d05d4397c750b44289d4c541d95f6c892d12f640e7144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8719547f753558ab894d05d4397c750b44289d4c541d95f6c892d12f640e7144", kill_on_drop: false }`
[INFO] [stdout] 8719547f753558ab894d05d4397c750b44289d4c541d95f6c892d12f640e7144