[INFO] cloning repository https://github.com/iEatTheFood/os_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iEatTheFood/os_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiEatTheFood%2Fos_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiEatTheFood%2Fos_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 837755afe66f2a3761e0bab10257a6d4ad251a60
[INFO] checking iEatTheFood/os_rust against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6+rustflags=-Znext-solver=coherence for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiEatTheFood%2Fos_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/iEatTheFood/os_rust
[INFO] finished tweaking git repo https://github.com/iEatTheFood/os_rust
[INFO] tweaked toml for git repo https://github.com/iEatTheFood/os_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iEatTheFood/os_rust on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iEatTheFood/os_rust 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.9.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522
[INFO] running `Command { std: "docker" "start" "4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Znext-solver=coherence" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.35
[INFO] [stderr]     Checking os_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected item, found keyword `let`
[INFO] [stdout]   --> src/vga_buffer.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | let vga_buffer = 0xb8000 as *mut u8;
[INFO] [stdout]    | ^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `let` cannot be used for global variables
[INFO] [stdout]    | help: consider using `static` or `const` instead of `let`
[INFO] [stdout]    |
[INFO] [stdout]    = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os_rust` (bin "os_rust") due to 1 previous error
[INFO] [stderr] warning: unused dependency `bootloader`
[INFO] [stderr]  --> Cargo.toml:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | bootloader = "0.9"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `bootloader`
[INFO] [stderr] warning: `os_rust` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522", kill_on_drop: false }`
[INFO] [stdout] 4c36dc6c41d1931a00ec66bf1735ec24d55be0398725df1cbe301805b019e522
