[INFO] cloning repository https://github.com/0xN1nja/rusty-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xN1nja/rusty-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xN1nja%2Frusty-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xN1nja%2Frusty-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4148e9c66ef40bea70259d236760fbda1a47ed9c
[INFO] building 0xN1nja/rusty-os against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xN1nja%2Frusty-os" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xN1nja/rusty-os on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/0xN1nja/rusty-os
[INFO] finished tweaking git repo https://github.com/0xN1nja/rusty-os
[INFO] tweaked toml for git repo https://github.com/0xN1nja/rusty-os written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/0xN1nja/rusty-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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 520e43bbd6d11317b043046b7b2966de4b979cae17cbafeb069cf04a7ac02c6e
[INFO] running `Command { std: "docker" "start" "-a" "520e43bbd6d11317b043046b7b2966de4b979cae17cbafeb069cf04a7ac02c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "520e43bbd6d11317b043046b7b2966de4b979cae17cbafeb069cf04a7ac02c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "520e43bbd6d11317b043046b7b2966de4b979cae17cbafeb069cf04a7ac02c6e", kill_on_drop: false }`
[INFO] [stdout] 520e43bbd6d11317b043046b7b2966de4b979cae17cbafeb069cf04a7ac02c6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abaafd6ed53b3dd243f959e5e1f254801ef89530058c1d476fb7d888d6e1d8d6
[INFO] running `Command { std: "docker" "start" "-a" "abaafd6ed53b3dd243f959e5e1f254801ef89530058c1d476fb7d888d6e1d8d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.23
[INFO] [stderr]    Compiling rusty-os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/vga_buffer.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub enum Colors {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 4  |     Black = 0,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 5  |     Blue = 1,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 6  |     Green = 2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 7  |     Cyan = 3,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 8  |     Red = 4,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 9  |     Magenta = 5,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 10 |     Brown = 6,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     LightGray = 7,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     DarkGray = 8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 13 |     LightBlue = 9,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     LightGreen = 10,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 15 |     LightCyan = 11,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     LightRed = 12,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 17 |     Pink = 13,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Yellow = 14,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 19 |     White = 15,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Colors` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/334963c956d25708feab489a3816ae63f639355d/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/rustup-home/toolchains/334963c956d25708feab489a3816ae63f639355d/lib/rustlib/x86_64-unknown-linux-gnu/bin/self-contained:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcOTSCyT/symbols.o" "<1 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/334963c956d25708feab489a3816ae63f639355d/lib/rustlib/x86_64-unknown-linux-gnu/lib/{librustc_std_workspace_core-395a38b8e0851c9b.rlib,libcore-d453bab70303062c.rlib,libcompiler_builtins-dd545221bb4f4734.rlib}" "-Wl,-Bdynamic" "-B/opt/rustwide/rustup-home/toolchains/334963c956d25708feab489a3816ae63f639355d/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/334963c956d25708feab489a3816ae63f639355d/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rusty_os-48271fb3560db95c" "-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/11/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at main.rs:15 (src/main.rs:15)
[INFO] [stdout]           >>>            /opt/rustwide/target/debug/deps/rusty_os-48271fb3560db95c.rusty_os.3214c468062d7565-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 `rusty-os` (bin "rusty-os") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "abaafd6ed53b3dd243f959e5e1f254801ef89530058c1d476fb7d888d6e1d8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abaafd6ed53b3dd243f959e5e1f254801ef89530058c1d476fb7d888d6e1d8d6", kill_on_drop: false }`
[INFO] [stdout] abaafd6ed53b3dd243f959e5e1f254801ef89530058c1d476fb7d888d6e1d8d6
