[INFO] cloning repository https://github.com/GustavoWidman/rust-kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GustavoWidman/rust-kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoWidman%2Frust-kernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoWidman%2Frust-kernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94a18c17f950572b80cee9611223ef7ab68e397a
[INFO] checking GustavoWidman/rust-kernel against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoWidman%2Frust-kernel" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/GustavoWidman/rust-kernel
[INFO] finished tweaking git repo https://github.com/GustavoWidman/rust-kernel
[INFO] tweaked toml for git repo https://github.com/GustavoWidman/rust-kernel written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GustavoWidman/rust-kernel on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GustavoWidman/rust-kernel 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: toolchain
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98c1691c107f517b18b199f348fba6d8414e5c78f211634cef8ff37f8d63f277
[INFO] running `Command { std: "docker" "start" "-a" "98c1691c107f517b18b199f348fba6d8414e5c78f211634cef8ff37f8d63f277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98c1691c107f517b18b199f348fba6d8414e5c78f211634cef8ff37f8d63f277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98c1691c107f517b18b199f348fba6d8414e5c78f211634cef8ff37f8d63f277", kill_on_drop: false }`
[INFO] [stdout] 98c1691c107f517b18b199f348fba6d8414e5c78f211634cef8ff37f8d63f277
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 240c55022ee77218707e1fca76c39a694e38c655327cde6390b282439cf56b40
[INFO] running `Command { std: "docker" "start" "-a" "240c55022ee77218707e1fca76c39a694e38c655327cde6390b282439cf56b40", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: toolchain
[INFO] [stderr]    Compiling rustversion v1.0.18
[INFO] [stderr]    Compiling bootloader v0.9.29
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking format_no_std v1.2.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking pc-keyboard v0.5.1
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking x86_64 v0.14.13
[INFO] [stderr]     Checking pic8259 v0.10.4
[INFO] [stderr]     Checking rust-kernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use core::panic::{self, PanicInfo};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]  --> src/utils/vga.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VGA {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     height: u16,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BOX_WIDE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let BOX_WIDE = 20;
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `box_wide`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BOX_TALL` should have a snake case name
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let BOX_TALL = 5;
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `box_tall`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use core::panic::{self, PanicInfo};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-kernel` (bin "rust-kernel" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "240c55022ee77218707e1fca76c39a694e38c655327cde6390b282439cf56b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240c55022ee77218707e1fca76c39a694e38c655327cde6390b282439cf56b40", kill_on_drop: false }`
[INFO] [stdout] 240c55022ee77218707e1fca76c39a694e38c655327cde6390b282439cf56b40
