[INFO] cloning repository https://github.com/taufiksoleh/os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taufiksoleh/os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaufiksoleh%2Fos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaufiksoleh%2Fos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ae08557731d274e0686a728c41c299bfeba9ff0
[INFO] testing taufiksoleh/os against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaufiksoleh%2Fos" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/taufiksoleh/os
[INFO] finished tweaking git repo https://github.com/taufiksoleh/os
[INFO] tweaked toml for git repo https://github.com/taufiksoleh/os written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/taufiksoleh/os on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/taufiksoleh/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded bootloader v0.9.31
[INFO] [stderr]   Downloaded uart_16550 v0.2.19
[INFO] [stderr]   Downloaded x86_64 v0.14.13
[INFO] [stderr]   Downloaded volatile v0.4.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 102891d07f30e2081d0f9d7ccb822b85062b989f6e2bc7ebd2e165659b724bcf
[INFO] running `Command { std: "docker" "start" "-a" "102891d07f30e2081d0f9d7ccb822b85062b989f6e2bc7ebd2e165659b724bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "102891d07f30e2081d0f9d7ccb822b85062b989f6e2bc7ebd2e165659b724bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "102891d07f30e2081d0f9d7ccb822b85062b989f6e2bc7ebd2e165659b724bcf", kill_on_drop: false }`
[INFO] [stdout] 102891d07f30e2081d0f9d7ccb822b85062b989f6e2bc7ebd2e165659b724bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdd3af5089494c52bcd3d37ffd8c3be8ddce93f12e0dbabdd094036a3bab01b4
[INFO] running `Command { std: "docker" "start" "-a" "cdd3af5089494c52bcd3d37ffd8c3be8ddce93f12e0dbabdd094036a3bab01b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling bootloader v0.9.31
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling volatile v0.4.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling x86_64 v0.14.13
[INFO] [stderr]    Compiling uart_16550 v0.2.19
[INFO] [stderr]    Compiling os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::x86_64::*`
[INFO] [stdout]  --> src/arch/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::x86_64::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/memory/heap.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn allocate(&mut self, size: usize, align: usize) -> Option<*mut u8> {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `align`
[INFO] [stdout]   --> src/memory/heap.rs:14:45
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn allocate(&mut self, size: usize, align: usize) -> Option<*mut u8> {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_align`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/memory/heap.rs:20:34
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn deallocate(&mut self, ptr: *mut u8, size: usize, align: usize) {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/memory/heap.rs:20:48
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn deallocate(&mut self, ptr: *mut u8, size: usize, align: usize) {
[INFO] [stdout]    |                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `align`
[INFO] [stdout]   --> src/memory/heap.rs:20:61
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn deallocate(&mut self, ptr: *mut u8, size: usize, align: usize) {
[INFO] [stdout]    |                                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_align`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcw4YuLS/symbols.o" "<1 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libos-7b44d092edc75a97,libspin-9807f654e4818911,libvolatile-926b17ead2a07695,liblazy_static-69181a648937a2a4,libspin-7ba7aebe17adef4b,libx86_64-876c3c4b85466435,libvolatile-b912d1a5128efae1,libbitflags-8b93536732b4a862,libbit_field-8c5ed7f77c16b5b4}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libcore-*,libcompiler_builtins-*}.rlib" "-L" "/tmp/rustcw4YuLS/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/os-dafe6c4f8bf41d59" "-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:18 (src/main.rs:18)
[INFO] [stdout]           >>>            /opt/rustwide/target/debug/deps/os-dafe6c4f8bf41d59.os.674e2cac0d1ce8b8-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 `os` (bin "os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cdd3af5089494c52bcd3d37ffd8c3be8ddce93f12e0dbabdd094036a3bab01b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdd3af5089494c52bcd3d37ffd8c3be8ddce93f12e0dbabdd094036a3bab01b4", kill_on_drop: false }`
[INFO] [stdout] cdd3af5089494c52bcd3d37ffd8c3be8ddce93f12e0dbabdd094036a3bab01b4
