[INFO] cloning repository https://github.com/CmPunkLP/OS2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CmPunkLP/OS2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCmPunkLP%2FOS2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCmPunkLP%2FOS2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39ad79fbe5a7ec00fbc0eafa27b8c3f43db3489f
[INFO] testing CmPunkLP/OS2 against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCmPunkLP%2FOS2" "/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/CmPunkLP/OS2
[INFO] finished tweaking git repo https://github.com/CmPunkLP/OS2
[INFO] tweaked toml for git repo https://github.com/CmPunkLP/OS2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CmPunkLP/OS2 on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CmPunkLP/OS2 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.9.23
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e952de33cc190254c9ab44aa4710449207f58e0a0a396047829f8ee000033fad
[INFO] running `Command { std: "docker" "start" "-a" "e952de33cc190254c9ab44aa4710449207f58e0a0a396047829f8ee000033fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e952de33cc190254c9ab44aa4710449207f58e0a0a396047829f8ee000033fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e952de33cc190254c9ab44aa4710449207f58e0a0a396047829f8ee000033fad", kill_on_drop: false }`
[INFO] [stdout] e952de33cc190254c9ab44aa4710449207f58e0a0a396047829f8ee000033fad
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa9cb6f1168f5293af8cf5501b56cc7808ea59be074b66c671567a214c08a604
[INFO] running `Command { std: "docker" "start" "-a" "aa9cb6f1168f5293af8cf5501b56cc7808ea59be074b66c671567a214c08a604", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.23
[INFO] [stderr]    Compiling unios v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `White`
[INFO] [stdout]   --> src/main.rs:10:48
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::vga_buf::Color::{Black, LightGreen, White};
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Left` is never constructed
[INFO] [stdout]   --> src/vga_buf.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Alignment {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] 13 |     Left, 
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/vga_buf.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 19 |     Black,      
[INFO] [stdout] 20 |     DarkBlue,   
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 21 |     Green,      
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 22 |     Blue,       
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     Red,        
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 24 |     Purple,     
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 25 |     Brown,      
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 26 |     LightGrey,  
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 27 |     DarkGrey,   
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     BrightBlue, 
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 29 |     LightGreen, 
[INFO] [stdout] 30 |     LightBlue,  
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 31 |     LightRed,   
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     Pink,      
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     Yellow,     
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     White       
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_hello_world` is never used
[INFO] [stdout]    --> src/vga_buf.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout]  56 | impl Screen {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn print_hello_world(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcz5SbuS/symbols.o" "<1 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libcore-*,libcompiler_builtins-*}.rlib" "-L" "/tmp/rustcz5SbuS/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/unios-e36c6b759ea3b1bf" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at main.rs:19 (src/main.rs:19)
[INFO] [stdout]           >>>            /opt/rustwide/target/debug/deps/unios-e36c6b759ea3b1bf.unios.f8076f9443522870-cgu.0.rcgu.o:(.text._start+0x0)
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unios` (bin "unios") due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "aa9cb6f1168f5293af8cf5501b56cc7808ea59be074b66c671567a214c08a604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa9cb6f1168f5293af8cf5501b56cc7808ea59be074b66c671567a214c08a604", kill_on_drop: false }`
[INFO] [stdout] aa9cb6f1168f5293af8cf5501b56cc7808ea59be074b66c671567a214c08a604
