[INFO] cloning repository https://github.com/Ersikan/kernul
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ersikan/kernul" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErsikan%2Fkernul", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErsikan%2Fkernul'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e737258eb21a759ea08441d1f5b08c16e78287b6
[INFO] checking Ersikan/kernul against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErsikan%2Fkernul" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ersikan/kernul on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Ersikan/kernul
[INFO] finished tweaking git repo https://github.com/Ersikan/kernul
[INFO] tweaked toml for git repo https://github.com/Ersikan/kernul written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Ersikan/kernul already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ae46c11f665d7ac4ff651f7d49e7431f3389b1d28bb6dd9cca88ec236c9f55c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1ae46c11f665d7ac4ff651f7d49e7431f3389b1d28bb6dd9cca88ec236c9f55c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ae46c11f665d7ac4ff651f7d49e7431f3389b1d28bb6dd9cca88ec236c9f55c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae46c11f665d7ac4ff651f7d49e7431f3389b1d28bb6dd9cca88ec236c9f55c", kill_on_drop: false }`
[INFO] [stdout] 1ae46c11f665d7ac4ff651f7d49e7431f3389b1d28bb6dd9cca88ec236c9f55c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d98edc0a3e6bf90c329a9dd961d5ba11a00b46382b11c7e91651e3dd4de00e41
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d98edc0a3e6bf90c329a9dd961d5ba11a00b46382b11c7e91651e3dd4de00e41", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling kernul v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn panic(info: &PanicInfo) -> ! {
[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/39b841dfe36f90a7cd111e7f0c55f32594f6e578/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-25c6acf8063a3802.rlib
[INFO] [stdout]    = note: second definition in the local crate (`kernul`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selector`
[INFO] [stdout]   --> src/interrupts/idt.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn new(base: u32, selector: u8, gate_type: GateType, privilege: u8) -> IdtEntry {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kernul`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/interrupts/idt.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn new(base: u32, selector: u8, gate_type: GateType, privilege: u8) -> IdtEntry {
[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: `enable`
[INFO] [stdout]   --> src/interrupts/idt.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn enable(&mut self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `disable`
[INFO] [stdout]   --> src/interrupts/idt.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn disable(&mut self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d98edc0a3e6bf90c329a9dd961d5ba11a00b46382b11c7e91651e3dd4de00e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98edc0a3e6bf90c329a9dd961d5ba11a00b46382b11c7e91651e3dd4de00e41", kill_on_drop: false }`
[INFO] [stdout] d98edc0a3e6bf90c329a9dd961d5ba11a00b46382b11c7e91651e3dd4de00e41