[INFO] cloning repository https://github.com/theKentoRico/Kentos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theKentoRico/Kentos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheKentoRico%2FKentos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheKentoRico%2FKentos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1af1133fa54b76fce0ac6ed8cef92ba6c8afa598
[INFO] checking theKentoRico/Kentos against try#0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef for pr-147859
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheKentoRico%2FKentos" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/theKentoRico/Kentos
[INFO] finished tweaking git repo https://github.com/theKentoRico/Kentos
[INFO] tweaked toml for git repo https://github.com/theKentoRico/Kentos written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/theKentoRico/Kentos on toolchain 0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/theKentoRico/Kentos 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" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr] warning: unused manifest key: target.x86_64-thekentorico-kentos.linker
[INFO] [stderr] warning: unused manifest key: unstable
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded pic8259 v0.10.4
[INFO] [stderr]   Downloaded bootloader v0.9.31
[INFO] [stderr]   Downloaded spinning_top v0.2.5
[INFO] [stderr]   Downloaded x86_64 v0.14.13
[INFO] [stderr]   Downloaded x86_64 v0.15.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a198a2a1f3d4b30bb1b908040c2759abf6fd66e417a9c611044b3486dceb976e
[INFO] running `Command { std: "docker" "start" "-a" "a198a2a1f3d4b30bb1b908040c2759abf6fd66e417a9c611044b3486dceb976e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a198a2a1f3d4b30bb1b908040c2759abf6fd66e417a9c611044b3486dceb976e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a198a2a1f3d4b30bb1b908040c2759abf6fd66e417a9c611044b3486dceb976e", kill_on_drop: false }`
[INFO] [stdout] a198a2a1f3d4b30bb1b908040c2759abf6fd66e417a9c611044b3486dceb976e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 751beb54c2a48076830ad1793707d403c625a89c5cf6170ea5f1db1654cac676
[INFO] running `Command { std: "docker" "start" "-a" "751beb54c2a48076830ad1793707d403c625a89c5cf6170ea5f1db1654cac676", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr] warning: unused manifest key: target.x86_64-thekentorico-kentos.linker
[INFO] [stderr] warning: unused manifest key: unstable
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling bootloader v0.9.31
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking spinning_top v0.2.5
[INFO] [stderr]     Checking spin v0.10.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking linked_list_allocator v0.10.5
[INFO] [stderr]     Checking lock_api v0.4.12
[INFO] [stderr]     Checking x86_64 v0.14.13
[INFO] [stderr]     Checking x86_64 v0.15.2
[INFO] [stderr]     Checking pic8259 v0.10.4
[INFO] [stderr]     Checking kentos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | / fn panic(info: &PanicInfo) -> ! 
[INFO] [stdout] 51 | | {
[INFO] [stdout] 52 | |     write!(ERROR_WRITER.lock(), "{:?}\nRestarting now...\r", info);
[INFO] [stdout] 53 | |     unsafe
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | | }
[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/0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-957b1fe07cf96b13.rmeta
[INFO] [stdout]    = note: second definition in the local crate (`kentos`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kentos` (bin "kentos" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/kentos_stdio.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |     let mut writer = Mutex::new(Writer 
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/kentos_interrupts.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 |         Some(x) => unsafe
[INFO] [stdout]     |                    ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     unsafe
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `char_no_idx` is never read
[INFO] [stdout]    --> src/main.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             char_no_idx += 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `char_no_idx` is never read
[INFO] [stdout]    --> src/main.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 char_no_idx = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `k_puts` is never used
[INFO] [stdout]    --> src/kentos_stdio.rs:151:19
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub extern "C" fn k_puts(s: &str, fg: Colour, bg: Colour) -> ()
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_usize` is never used
[INFO] [stdout]    --> src/kentos_interrupts.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl InterruptIndex
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn as_usize(self) -> usize
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DOUBLE_FLT_IDX` is never used
[INFO] [stdout]  --> src/kentos_gdt.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const DOUBLE_FLT_IDX: u16 = 0;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dummy` is never constructed
[INFO] [stdout]  --> src/kentos_alloc.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Dummy;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "751beb54c2a48076830ad1793707d403c625a89c5cf6170ea5f1db1654cac676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "751beb54c2a48076830ad1793707d403c625a89c5cf6170ea5f1db1654cac676", kill_on_drop: false }`
[INFO] [stdout] 751beb54c2a48076830ad1793707d403c625a89c5cf6170ea5f1db1654cac676
