[INFO] updating cached repository JosephFerano/rust_os [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/JosephFerano/rust_os [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/JosephFerano/rust_os" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/JosephFerano/rust_os"` [INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/JosephFerano/rust_os'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/JosephFerano/rust_os" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/JosephFerano/rust_os"` [INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/JosephFerano/rust_os'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 0502adec20e78e6019d68a023520c0c30f3fcff8 [INFO] sha for GitHub repo JosephFerano/rust_os: 0502adec20e78e6019d68a023520c0c30f3fcff8 [INFO] validating manifest of JosephFerano/rust_os on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of JosephFerano/rust_os on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing JosephFerano/rust_os [INFO] finished frobbing JosephFerano/rust_os [INFO] frobbed toml for JosephFerano/rust_os written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/JosephFerano/rust_os/Cargo.toml [INFO] started frobbing JosephFerano/rust_os [INFO] finished frobbing JosephFerano/rust_os [INFO] frobbed toml for JosephFerano/rust_os written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/JosephFerano/rust_os/Cargo.toml [INFO] crate JosephFerano/rust_os has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking JosephFerano/rust_os against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-5/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/JosephFerano/rust_os:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 66361986c0cd42f18d7a4ef5cb5aaa764ed9f275e545e0cdd2c9d5ea9a8fbdd9 [INFO] running `"docker" "start" "-a" "66361986c0cd42f18d7a4ef5cb5aaa764ed9f275e545e0cdd2c9d5ea9a8fbdd9"` [INFO] [stderr] Checking multiboot2 v0.7.1 [INFO] [stderr] Checking first_os v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0152]: duplicate lang item found: `eh_personality`. [INFO] [stderr] --> src/lib.rs:63:1 [INFO] [stderr] | [INFO] [stderr] 63 | pub extern fn eh_personality() {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: first defined in crate `panic_unwind`. [INFO] [stderr] [INFO] [stderr] error[E0152]: duplicate lang item found: `panic_impl`. [INFO] [stderr] --> src/lib.rs:66:1 [INFO] [stderr] | [INFO] [stderr] 66 | / pub extern fn panic(info : &PanicInfo) -> ! { [INFO] [stderr] 67 | | let mut writer = Writer::new(); [INFO] [stderr] 68 | | writeln!(writer, "{}", info); [INFO] [stderr] 69 | | loop{} [INFO] [stderr] 70 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: first defined in crate `std`. [INFO] [stderr] [INFO] [stderr] warning: method is never used: `clear_screen` [INFO] [stderr] --> src/vga_buffer.rs:121:5 [INFO] [stderr] | [INFO] [stderr] 121 | pub fn clear_screen(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `core::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | / writeln!(writer, " start: 0x{:x}, end: 0x{:x}, size: {:x}", [INFO] [stderr] 26 | | area.start_address(), [INFO] [stderr] 27 | | area.end_address(), [INFO] [stderr] 28 | | area.size()); [INFO] [stderr] | |_________________________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `core::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | / writeln!(writer, " addr: 0x{:x}, size: 0x{:x}, flags: 0x{:x}", [INFO] [stderr] 37 | | section.start_address(), [INFO] [stderr] 38 | | section.size(), [INFO] [stderr] 39 | | section.flags()); [INFO] [stderr] | |_____________________________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `core::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | writeln!(writer, "Kernel Start: 0x{:x}, Kernel End: 0x{:x}", kernel_start, kernel_end); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `core::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:49:5 [INFO] [stderr] | [INFO] [stderr] 49 | writeln!(writer, "Multiboot Start: 0x{:x}, Multiboot End: 0x{:x}", multiboot_start, multiboot_end); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `core::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:68:5 [INFO] [stderr] | [INFO] [stderr] 68 | writeln!(writer, "{}", info); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0152`. [INFO] [stderr] error: Could not compile `first_os`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "66361986c0cd42f18d7a4ef5cb5aaa764ed9f275e545e0cdd2c9d5ea9a8fbdd9"` [INFO] running `"docker" "rm" "-f" "66361986c0cd42f18d7a4ef5cb5aaa764ed9f275e545e0cdd2c9d5ea9a8fbdd9"` [INFO] [stdout] 66361986c0cd42f18d7a4ef5cb5aaa764ed9f275e545e0cdd2c9d5ea9a8fbdd9