[INFO] cloning repository egergo/kermit-kernel-first [INFO] running `"git" "clone" "--bare" "git://github.com/egergo/kermit-kernel-first.git" "work/cache/sources/gh/egergo/kermit-kernel-first"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/egergo/kermit-kernel-first'... [INFO] running `"git" "clone" "work/cache/sources/gh/egergo/kermit-kernel-first" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/egergo/kermit-kernel-first"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/egergo/kermit-kernel-first'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/egergo/kermit-kernel-first" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/egergo/kermit-kernel-first"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/egergo/kermit-kernel-first'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3c6e9da305384f94cccf72b340fff8c4e5c1fd3e [INFO] sha for GitHub repo egergo/kermit-kernel-first: 3c6e9da305384f94cccf72b340fff8c4e5c1fd3e [INFO] validating manifest of egergo/kermit-kernel-first on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of egergo/kermit-kernel-first on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing egergo/kermit-kernel-first [INFO] finished frobbing egergo/kermit-kernel-first [INFO] frobbed toml for egergo/kermit-kernel-first written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/egergo/kermit-kernel-first/Cargo.toml [INFO] started frobbing egergo/kermit-kernel-first [INFO] finished frobbing egergo/kermit-kernel-first [INFO] frobbed toml for egergo/kermit-kernel-first written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/egergo/kermit-kernel-first/Cargo.toml [INFO] crate egergo/kermit-kernel-first already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking egergo/kermit-kernel-first against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/egergo/kermit-kernel-first:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] b46c5abd2035081de8b898115b3bc1210091a26d6cd4a3e051b05cc9c8b37c93 [INFO] running `"docker" "start" "-a" "b46c5abd2035081de8b898115b3bc1210091a26d6cd4a3e051b05cc9c8b37c93"` [INFO] [stderr] Checking ux v0.1.2 [INFO] [stderr] Checking spin v0.4.9 [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] Checking multiboot2 v0.7.1 [INFO] [stderr] Checking x86_64 v0.2.11 [INFO] [stderr] Checking blog_os v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/console.rs:147:21 [INFO] [stderr] | [INFO] [stderr] 147 | 0x20...0x7e | b'\n' => self.write_byte(byte), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: #[warn(ellipsis_inclusive_range_patterns)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/syscalls/mod.rs:108:21 [INFO] [stderr] | [INFO] [stderr] 108 | let mut asdf = vars.rdi as *mut usize; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `panic_handler` has been stable since 1.30.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:5:12 [INFO] [stderr] | [INFO] [stderr] 5 | #![feature(panic_handler)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(stable_features)] on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | #![feature(extern_prelude)] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `const_let` has been stable since 1.33.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:13:12 [INFO] [stderr] | [INFO] [stderr] 13 | #![feature(const_let)] [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | #![feature(alloc)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0080]: it is undefined behavior to use this value [INFO] [stderr] --> src/mem.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | static mut LAST_PTR: usize = unsafe { &__cheap_malloc_start as *const u8 as usize }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered a pointer, but expected initialized plain (non-pointer) bytes [INFO] [stderr] | [INFO] [stderr] = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rust compiler repository if you believe it should not be considered undefined behavior [INFO] [stderr] [INFO] [stderr] warning: unused `core::result::Result` that must be used [INFO] [stderr] --> src/acpi.rs:50:1 [INFO] [stderr] | [INFO] [stderr] 50 | char_array_struct!(Signature8, 8); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [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 warning 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/acpi.rs:50:1 [INFO] [stderr] | [INFO] [stderr] 50 | char_array_struct!(Signature8, 8); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:50:1 [INFO] [stderr] | [INFO] [stderr] 50 | char_array_struct!(Signature8, 8); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:51:1 [INFO] [stderr] | [INFO] [stderr] 51 | char_array_struct!(Signature4, 4); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:51:1 [INFO] [stderr] | [INFO] [stderr] 51 | char_array_struct!(Signature4, 4); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:51:1 [INFO] [stderr] | [INFO] [stderr] 51 | char_array_struct!(Signature4, 4); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:52:1 [INFO] [stderr] | [INFO] [stderr] 52 | char_array_struct!(OemId, 6); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:52:1 [INFO] [stderr] | [INFO] [stderr] 52 | char_array_struct!(OemId, 6); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:52:1 [INFO] [stderr] | [INFO] [stderr] 52 | char_array_struct!(OemId, 6); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | char_array_struct!(OemTableId, 8); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | char_array_struct!(OemTableId, 8); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpi.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | char_array_struct!(OemTableId, 8); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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/acpica.rs:128:17 [INFO] [stderr] | [INFO] [stderr] 128 | write!(f, "{}", *item as char); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning 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 previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0080`. [INFO] [stderr] error: Could not compile `blog_os`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "b46c5abd2035081de8b898115b3bc1210091a26d6cd4a3e051b05cc9c8b37c93"` [INFO] running `"docker" "rm" "-f" "b46c5abd2035081de8b898115b3bc1210091a26d6cd4a3e051b05cc9c8b37c93"` [INFO] [stdout] b46c5abd2035081de8b898115b3bc1210091a26d6cd4a3e051b05cc9c8b37c93