[INFO] cloning repository https://github.com/granadierfc/RustOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/granadierfc/RustOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgranadierfc%2FRustOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgranadierfc%2FRustOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8ce91bf010893db3e0aa4811847dbf06fddc0ca
[INFO] testing granadierfc/RustOS against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgranadierfc%2FRustOS" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/granadierfc/RustOS
[INFO] finished tweaking git repo https://github.com/granadierfc/RustOS
[INFO] tweaked toml for git repo https://github.com/granadierfc/RustOS written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/granadierfc/RustOS on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/granadierfc/RustOS 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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] 20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5
[INFO] running `Command { std: "docker" "start" "20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5", 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" "20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `SECTSIZE` is never used
[INFO] [stdout]   --> src/main.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | const SECTSIZE: usize = 512;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inb` is never used
[INFO] [stdout]   --> src/main.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 | unsafe fn inb(port: u16) -> u8 {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `insl` is never used
[INFO] [stdout]   --> src/main.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 | unsafe fn insl(port: u16, addr: *mut u8, count: usize) {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `outb` is never used
[INFO] [stdout]   --> src/main.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | unsafe fn outb(port: u16, data: u8) {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `outsl` is never used
[INFO] [stdout]   --> src/main.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | unsafe fn outsl(port: u16, addr: *const u8, count: usize) {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stosb` is never used
[INFO] [stdout]   --> src/main.rs:54:11
[INFO] [stdout]    |
[INFO] [stdout] 54 | unsafe fn stosb(addr: *mut u8, data: i8, count: usize) {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `waitdisk` is never used
[INFO] [stdout]   --> src/main.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 | unsafe fn waitdisk() {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readsect` is never used
[INFO] [stdout]   --> src/main.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 | unsafe fn readsect(dst: *mut u8, offset: u32) {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readseg` is never used
[INFO] [stdout]   --> src/main.rs:77:11
[INFO] [stdout]    |
[INFO] [stdout] 77 | unsafe fn readseg(pa: *mut u8, count: u32, mut offset: u32) {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COM1` is never used
[INFO] [stdout]   --> src/main.rs:92:7
[INFO] [stdout]    |
[INFO] [stdout] 92 | const COM1: u16 = 0x3f8;
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `UART` is never used
[INFO] [stdout]   --> src/main.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 | static mut UART: bool = true;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `uartputc` is never used
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn uartputc(c: u8) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `uartinit` is never used
[INFO] [stdout]    --> src/main.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn uartinit() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `consputc` is never used
[INFO] [stdout]    --> src/main.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn consputc(c: i32) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printint` is never used
[INFO] [stdout]    --> src/main.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn printint(xx: i32, base: i32, sign: bool) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/release/build/hello/0498ad80a4438f80/out/rustcg4Ufn4/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" "/opt/rustwide/target/release/build/hello/0498ad80a4438f80/out/rustcg4Ufn4/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/release/build/hello/0498ad80a4438f80/out/hello" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-Wl,-O1" "-Wl,--strip-debug" "-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/15/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at hello.8904ad54a677b728-cgu.0
[INFO] [stdout]           >>>            /opt/rustwide/target/release/build/hello/0498ad80a4438f80/out/hello.hello.8904ad54a677b728-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 `hello` (bin "hello") due to 1 previous error; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5", kill_on_drop: false }`
[INFO] [stdout] 20382c8758d3aa832d2389ae8bca8e5132bfee61b2631fdf041df21a7c4904a5
