[INFO] cloning repository https://github.com/Grsaiago/kfc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Grsaiago/kfc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrsaiago%2Fkfc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrsaiago%2Fkfc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec87eadfb53896569e6fd4e54441a1c2aee81c9f
[INFO] fixing Grsaiago/kfc against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrsaiago%2Fkfc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Grsaiago/kfc
[INFO] finished tweaking git repo https://github.com/Grsaiago/kfc
[INFO] tweaked toml for git repo https://github.com/Grsaiago/kfc written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Grsaiago/kfc on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Grsaiago/kfc 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd
[INFO] running `Command { std: "docker" "start" "aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd", 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" "aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking rustcore_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `PortRead`
[INFO] [stdout]  --> src/vga/cursor.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::x86::{PortRead, PortWrite};
[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 import: `core::ptr::NonNull`
[INFO] [stdout]  --> src/vga/cursor.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::ptr::NonNull;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]    --> src/lib.rs:128:1
[INFO] [stdout]     |
[INFO] [stdout] 128 | / fn panic(_info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout] 129 | |     loop {}
[INFO] [stdout] 130 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]     = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/622891a4e29178280638a6b63a8908bde2c0c854/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-ebc3593764c44f83.rmeta
[INFO] [stdout]     = note: second definition in the local crate (`rust_kernel`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PortRead`
[INFO] [stdout]  --> src/vga/cursor.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::x86::{PortRead, PortWrite};
[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 import: `core::ptr::NonNull`
[INFO] [stdout]  --> src/vga/cursor.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::ptr::NonNull;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustcore_test` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Char` is never constructed
[INFO] [stdout]  --> src/vga/char.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Char {
[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 associated items are never used
[INFO] [stdout]   --> src/vga/char.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Char {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 15 |     pub const fn new(chr: u8, color: CharColor) -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub const fn with_colors(chr: u8, foreground: VgaColor, background: VgaColor) -> Self {
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub const fn with_foreground(chr: u8, foreground: VgaColor) -> Self {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub const fn ascii(&self) -> u8 {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub const fn color(&self) -> CharColor {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn set_ascii(&mut self, chr: u8) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn set_color(&mut self, color: CharColor) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn foreground_color(&self) -> VgaColor {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn background_color(&self) -> VgaColor {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn set_foreground_color(&mut self, foreground: VgaColor) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn set_background_color(&mut self, background: VgaColor) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn set_bg_fg_colors(&mut self, foreground: VgaColor, background: VgaColor) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CharSliceExt` is never used
[INFO] [stdout]   --> src/vga/char.rs:69:11
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub trait CharSliceExt {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `MIN_ROW`, `MAX_ROW`, and `MIN_COLUMN` are never used
[INFO] [stdout]   --> src/vga/cursor.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Cursor {
[INFO] [stdout]    | ----------- associated constants in this implementation
[INFO] [stdout] 22 |     pub const MIN_ROW: u8 = Row::MIN;
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 23 |     pub const MAX_ROW: u8 = Row::MAX;
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 24 |     pub const MIN_COLUMN: u8 = Column::MIN;
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/vga/cursor.rs:36:12
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl Cursor {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  36 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  40 |     pub fn at(row: Row, column: Column) -> Result<Self, ()> {
[INFO] [stdout]     |            ^^
[INFO] [stdout] ...
[INFO] [stdout]  63 |     pub fn set_position(&mut self, row: u8, column: u8) -> Result<(), ()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  82 |     pub fn newline(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub fn backspace(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn move_up(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 138 |     pub fn reset(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     pub fn is_at_line_start(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `color`, `write_byte_character`, and `clear` are never used
[INFO] [stdout]   --> src/vga/frame_buffer.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl FrameBuffer {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn color(&self) -> CharColor {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn write_byte_character(chr: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PortRead` is never used
[INFO] [stdout]  --> src/x86/port_io.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait PortRead {
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd", kill_on_drop: false }`
[INFO] [stdout] aecee3817abe3490e4fbd2e42f41e40682299aefb19deb8b2a99b3832e6e01dd
