[INFO] cloning repository https://github.com/pitiK3U/rust-kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pitiK3U/rust-kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FpitiK3U%2Frust-kernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FpitiK3U%2Frust-kernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c40e82cdb9e42aae51eab2ccc7cfedfa521a1d4
[INFO] checking pitiK3U/rust-kernel against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FpitiK3U%2Frust-kernel" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pitiK3U/rust-kernel on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/pitiK3U/rust-kernel
[INFO] finished tweaking git repo https://github.com/pitiK3U/rust-kernel
[INFO] tweaked toml for git repo https://github.com/pitiK3U/rust-kernel written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/pitiK3U/rust-kernel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4230c2cba15087f8425f03d500e11176f3500743921bf69c61e52fd986ff12fe
[INFO] running `Command { std: "docker" "start" "-a" "4230c2cba15087f8425f03d500e11176f3500743921bf69c61e52fd986ff12fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4230c2cba15087f8425f03d500e11176f3500743921bf69c61e52fd986ff12fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4230c2cba15087f8425f03d500e11176f3500743921bf69c61e52fd986ff12fe", kill_on_drop: false }`
[INFO] [stdout] 4230c2cba15087f8425f03d500e11176f3500743921bf69c61e52fd986ff12fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c58c90e770b20766bd8e3f38f5154a59bae51ddf1810d8c98dd945bec1195c8e
[INFO] running `Command { std: "docker" "start" "-a" "c58c90e770b20766bd8e3f38f5154a59bae51ddf1810d8c98dd945bec1195c8e", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rkernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `QemuExitCode`
[INFO] [stdout]   --> src/main.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |     test::exit_qemu(QemuExitCode::Success);
[INFO] [stdout]    |                     ^^^^^^^^^^^^ use of undeclared type `QemuExitCode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Monitor`
[INFO] [stdout]   --> src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     Monitor::write_str("\nRunning tests\n");
[INFO] [stdout]    |     ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 38 | use crate::monitor::VGA::Monitor;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Monitor`
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     Monitor::write_str("trivial assertion... ");
[INFO] [stdout]    |     ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 38 | use crate::monitor::VGA::Monitor;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Monitor`
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Monitor::write_str("[ok]\n");
[INFO] [stdout]    |     ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 38 | use crate::monitor::VGA::Monitor;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rkernel` due to 5 previous errors
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/interrupts.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut idt = Idt::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct is never constructed: `Singleton`
[INFO] [stdout]  --> src/essentials/singleton.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Singleton<T> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take`
[INFO] [stdout]   --> src/essentials/singleton.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn take(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `give`
[INFO] [stdout]   --> src/essentials/singleton.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn give(&mut self, inner: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unlock`
[INFO] [stdout]   --> src/essentials/mutex.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn unlock(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `HandlerFunc`
[INFO] [stdout]  --> src/interrupts.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type HandlerFunc = extern "C" fn() -> !;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gdt`
[INFO] [stdout]  --> src/interrupts.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Gdt = 0,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ldt`
[INFO] [stdout]   --> src/interrupts.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ldt = 1,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_rpl`
[INFO] [stdout]   --> src/interrupts.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn set_rpl(mut self, rpl: u8) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_table_index`
[INFO] [stdout]   --> src/interrupts.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn set_table_index(mut self, table_index: TableIndex) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_index`
[INFO] [stdout]   --> src/interrupts.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn set_index(mut self, index: u16) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_code_segment`
[INFO] [stdout]   --> src/interrupts.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn get_code_segment() -> u16 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_handler`
[INFO] [stdout]   --> src/interrupts.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |         fn set_handler(&mut self, entry: u8, handler: HandlerFunc) -> &mut TypeAttribute {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/interrupts.rs:125:16
[INFO] [stdout]     |
[INFO] [stdout] 125 |         pub fn new(selector: Selector, handler: HandlerFunc) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `GateType`
[INFO] [stdout]    --> src/interrupts.rs:148:10
[INFO] [stdout]     |
[INFO] [stdout] 148 |     enum GateType {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Dpl`
[INFO] [stdout]    --> src/interrupts.rs:162:10
[INFO] [stdout]     |
[INFO] [stdout] 162 |     enum Dpl {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_present`
[INFO] [stdout]    --> src/interrupts.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |         fn set_present(&mut self, present: bool) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_dpl`
[INFO] [stdout]    --> src/interrupts.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 183 |         fn set_dpl(&mut self, dpl: Dpl) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_gate`
[INFO] [stdout]    --> src/interrupts.rs:188:12
[INFO] [stdout]     |
[INFO] [stdout] 188 |         fn set_gate(&mut self, gate: GateType) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/port.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn write(&self, value: u32) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Success`
[INFO] [stdout]  --> src/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Success = 0x10,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Failed`
[INFO] [stdout]  --> src/test.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Failed = 0x11,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `exit_qemu`
[INFO] [stdout]   --> src/test.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn exit_qemu(exit_code: QemuExitCode) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `IDT` should have a snake case name
[INFO] [stdout]   --> src/interrupts.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub mod IDT {
[INFO] [stdout]    |         ^^^ help: convert the identifier to snake case: `idt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c58c90e770b20766bd8e3f38f5154a59bae51ddf1810d8c98dd945bec1195c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c58c90e770b20766bd8e3f38f5154a59bae51ddf1810d8c98dd945bec1195c8e", kill_on_drop: false }`
[INFO] [stdout] c58c90e770b20766bd8e3f38f5154a59bae51ddf1810d8c98dd945bec1195c8e