[INFO] updating cached repository https://github.com/egergo/kermit-kernel-first
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c6e9da305384f94cccf72b340fff8c4e5c1fd3e
[INFO] checking egergo/kermit-kernel-first against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegergo%2Fkermit-kernel-first" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/egergo/kermit-kernel-first on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/egergo/kermit-kernel-first
[INFO] finished tweaking git repo https://github.com/egergo/kermit-kernel-first
[INFO] tweaked toml for git repo https://github.com/egergo/kermit-kernel-first written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/egergo/kermit-kernel-first already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 028bf4558a9f60e0e5aea3c18eb4a0913ef94edece23e894d92c351da99376ea
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "028bf4558a9f60e0e5aea3c18eb4a0913ef94edece23e894d92c351da99376ea"`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking ux v0.1.2
[INFO] [stderr]     Checking spin v0.4.9
[INFO] [stderr]     Checking usize_conversions v0.2.0
[INFO] [stderr]     Checking os_bootinfo v0.2.1
[INFO] [stderr]     Checking multiboot2 v0.7.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking x86_64 v0.2.11
[INFO] [stderr]     Checking blog_os v0.1.0 (/opt/rustwide/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] error[E0152]: duplicate lang item found: `panic_impl`.
[INFO] [stderr]    --> src/lib.rs:431:1
[INFO] [stderr]     |
[INFO] [stderr] 431 | / pub fn panic(_info: &PanicInfo) -> ! {
[INFO] [stderr] 432 | |     println!("PANIC {:?}", _info);
[INFO] [stderr] 433 | |     loop {}
[INFO] [stderr] 434 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: first defined in crate `std` (which `test` depends on).
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: duplicate lang item found: `oom`.
[INFO] [stderr]    --> src/lib.rs:470:1
[INFO] [stderr]     |
[INFO] [stderr] 470 | / fn foo(_: core::alloc::Layout) -> ! {
[INFO] [stderr] 471 | |     panic!("alloc");
[INFO] [stderr] 472 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: first defined in crate `std` (which `test` depends on).
[INFO] [stderr] 
[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] 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 `blog_os`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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]: could not evaluate static initializer
[INFO] [stderr]  --> src/mem.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 | static mut LAST_PTR: usize = unsafe { &__cheap_malloc_start as *const u8 as usize };
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ "pointer-to-integer cast" needs an rfc before being allowed inside constants
[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] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "028bf4558a9f60e0e5aea3c18eb4a0913ef94edece23e894d92c351da99376ea"`
[INFO] running `"docker" "rm" "-f" "028bf4558a9f60e0e5aea3c18eb4a0913ef94edece23e894d92c351da99376ea"`
[INFO] [stdout] 028bf4558a9f60e0e5aea3c18eb4a0913ef94edece23e894d92c351da99376ea