[INFO] cloning repository https://github.com/nk4dev/my-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nk4dev/my-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnk4dev%2Fmy-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnk4dev%2Fmy-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 985d53b9f5678f72465d495d73882da65f380717
[INFO] testing nk4dev/my-os against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnk4dev%2Fmy-os" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/nk4dev/my-os
[INFO] finished tweaking git repo https://github.com/nk4dev/my-os
[INFO] tweaked toml for git repo https://github.com/nk4dev/my-os written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nk4dev/my-os on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nk4dev/my-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d9f9c04dfbafa991c37f5e44366894a01e990f454a9cc3df97cb830999c6ad0
[INFO] running `Command { std: "docker" "start" "-a" "0d9f9c04dfbafa991c37f5e44366894a01e990f454a9cc3df97cb830999c6ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d9f9c04dfbafa991c37f5e44366894a01e990f454a9cc3df97cb830999c6ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9f9c04dfbafa991c37f5e44366894a01e990f454a9cc3df97cb830999c6ad0", kill_on_drop: false }`
[INFO] [stdout] 0d9f9c04dfbafa991c37f5e44366894a01e990f454a9cc3df97cb830999c6ad0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1de62d21da3924a0668016aa317c994ff71cb3c175dd403cd2094a12b2b6fa8f
[INFO] running `Command { std: "docker" "start" "-a" "1de62d21da3924a0668016aa317c994ff71cb3c175dd403cd2094a12b2b6fa8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.33
[INFO] [stderr]    Compiling nknighta_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `VirtAddr` is never constructed
[INFO] [stdout]   --> src/page_table.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct VirtAddr(pub usize);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PhysAddr` is never constructed
[INFO] [stdout]   --> src/page_table.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct PhysAddr(pub usize);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Page` is never constructed
[INFO] [stdout]   --> src/page_table.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Page(pub VirtAddr);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]   --> src/page_table.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Frame(pub PhysAddr);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Mapper` is never used
[INFO] [stdout]   --> src/page_table.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Mapper {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FrameAllocator` is never used
[INFO] [stdout]   --> src/page_table.rs:33:11
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub trait FrameAllocator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapError` is never constructed
[INFO] [stdout]   --> src/page_table.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct MapError;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Flush` is never constructed
[INFO] [stdout]   --> src/page_table.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Flush(pub PhantomData<u8>);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `flush` is never used
[INFO] [stdout]   --> src/page_table.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Flush {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 42 |     pub fn flush(self) {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OnExisting` is never used
[INFO] [stdout]   --> src/page_table.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub enum OnExisting {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map_page_checked` is never used
[INFO] [stdout]   --> src/page_table.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn map_page_checked<M: Mapper, A: FrameAllocator>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/vga_buffer.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct ColorCode(u8);
[INFO] [stdout]    |        --------- ^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `ColorCode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ascii_character` and `color_code` are never read
[INFO] [stdout]   --> src/vga_buffer.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct ScreenChar {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 33 |     ascii_character: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     color_code: ColorCode,
[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/debug/deps/rustchHhcVy/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/debug/deps/rustchHhcVy/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/nknighta_os-f1503fa52f93db44" "-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:59 (src/main.rs:59)
[INFO] [stdout]           >>>            /opt/rustwide/target/debug/deps/nknighta_os-f1503fa52f93db44.nknighta_os.53ad7d7fe00ad95b-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 `nknighta_os` (bin "nknighta_os") due to 1 previous error; 13 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1de62d21da3924a0668016aa317c994ff71cb3c175dd403cd2094a12b2b6fa8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1de62d21da3924a0668016aa317c994ff71cb3c175dd403cd2094a12b2b6fa8f", kill_on_drop: false }`
[INFO] [stdout] 1de62d21da3924a0668016aa317c994ff71cb3c175dd403cd2094a12b2b6fa8f
