[INFO] cloning repository https://github.com/Jaxtonmax/hvisor_pro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jaxtonmax/hvisor_pro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaxtonmax%2Fhvisor_pro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaxtonmax%2Fhvisor_pro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0fd3c43b5fad21022840d173635c5dafe19c9a34
[INFO] checking Jaxtonmax/hvisor_pro against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaxtonmax%2Fhvisor_pro" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Jaxtonmax/hvisor_pro
[INFO] finished tweaking git repo https://github.com/Jaxtonmax/hvisor_pro
[INFO] tweaked toml for git repo https://github.com/Jaxtonmax/hvisor_pro written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jaxtonmax/hvisor_pro on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jaxtonmax/hvisor_pro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/riscv`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Jaxtonmax/hvisor_pro against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaxtonmax%2Fhvisor_pro" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Jaxtonmax/hvisor_pro
[INFO] finished tweaking git repo https://github.com/Jaxtonmax/hvisor_pro
[INFO] tweaked toml for git repo https://github.com/Jaxtonmax/hvisor_pro written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jaxtonmax/hvisor_pro on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jaxtonmax/hvisor_pro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded riscv-pac v0.2.0
[INFO] [stderr]   Downloaded riscv-macros v0.2.0
[INFO] [stderr]   Downloaded sbi-spec v0.0.7
[INFO] [stderr]   Downloaded sbi-rt v0.0.3
[INFO] [stderr]   Downloaded riscv v0.13.0
[INFO] [stderr]   Downloaded buddy_system_allocator v0.8.0
[INFO] [stderr]   Downloaded riscv-decode v0.2.1
[INFO] [stderr]   Downloaded sbi-spec v0.0.8
[INFO] [stderr]   Downloaded bit_field v0.9.0
[INFO] [stderr]   Downloaded fdt-rs v0.4.5
[INFO] [stderr]   Downloaded spin v0.7.1
[INFO] [stderr]   Downloaded aarch64-cpu v9.4.0
[INFO] [stderr]   Downloaded cortex-a v8.1.1
[INFO] [stderr]   Downloaded loongArch64 v0.2.4
[INFO] [stderr]   Downloaded psci v0.1.3
[INFO] [stderr]   Downloaded x2apic v0.4.3
[INFO] [stderr]   Downloaded endian-type-rs v0.1.4
[INFO] [stderr]   Downloaded unsafe_unwrap v0.1.0
[INFO] [stderr]   Downloaded numeric-enum-macro v0.2.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded qemu-exit v3.0.2
[INFO] [stderr]   Downloaded riscv-peripheral v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7af734101b29de33b312618b14519497346058adb0eaeca73f5a8afc01a22159
[INFO] running `Command { std: "docker" "start" "-a" "7af734101b29de33b312618b14519497346058adb0eaeca73f5a8afc01a22159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7af734101b29de33b312618b14519497346058adb0eaeca73f5a8afc01a22159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af734101b29de33b312618b14519497346058adb0eaeca73f5a8afc01a22159", kill_on_drop: false }`
[INFO] [stdout] 7af734101b29de33b312618b14519497346058adb0eaeca73f5a8afc01a22159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afa7ccec594eae3b280bc0021454ee6762be2035b94c5687b383fbe29b0d4275
[INFO] running `Command { std: "docker" "start" "-a" "afa7ccec594eae3b280bc0021454ee6762be2035b94c5687b383fbe29b0d4275", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling hvisor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking endian-type-rs v0.1.4
[INFO] [stderr]     Checking x86_64 v0.14.10
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking spin v0.7.1
[INFO] [stderr]     Checking unsafe_unwrap v0.1.0
[INFO] [stderr]     Checking bit v0.1.1
[INFO] [stderr]     Checking tock-registers v0.8.1
[INFO] [stderr]     Checking buddy_system_allocator v0.8.0
[INFO] [stderr] error: failed to run custom build command for `hvisor v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/hvisor-a02cdb14e8a76ef7/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (169) panicked at build.rs:43:46:
[INFO] [stderr]   Failed to read .config file: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5bee9ca78222 - std[55a9e161c3b27996]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5bee9ca78222 - std[55a9e161c3b27996]::backtrace_rs::backtrace::trace_unsynchronized::<std[55a9e161c3b27996]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5bee9ca78222 - std[55a9e161c3b27996]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/sys/backtrace.rs:68:9
[INFO] [stderr]      3:     0x5bee9ca78222 - <<std[55a9e161c3b27996]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[be1376de1771c445]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/sys/backtrace.rs:38:26
[INFO] [stderr]      4:     0x5bee9ca89c17 - <core[be1376de1771c445]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5bee9ca89c17 - core[be1376de1771c445]::fmt::write
[INFO] [stderr]      6:     0x5bee9ca7c786 - std[55a9e161c3b27996]::io::default_write_fmt::<std[55a9e161c3b27996]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/io/mod.rs:614:11
[INFO] [stderr]      7:     0x5bee9ca7c786 - <std[55a9e161c3b27996]::sys::stdio::unix::Stderr as std[55a9e161c3b27996]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/io/mod.rs:1969:13
[INFO] [stderr]      8:     0x5bee9ca62a4f - <std[55a9e161c3b27996]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/sys/backtrace.rs:41:9
[INFO] [stderr]      9:     0x5bee9ca62a4f - std[55a9e161c3b27996]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5bee9ca73ea1 - std[55a9e161c3b27996]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5bee9ca7405b - std[55a9e161c3b27996]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5bee9ca62b08 - std[55a9e161c3b27996]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5bee9ca5a519 - std[55a9e161c3b27996]::sys::backtrace::__rust_end_short_backtrace::<std[55a9e161c3b27996]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/sys/backtrace.rs:176:18
[INFO] [stderr]     14:     0x5bee9ca6352d - __rustc[16ff1981e957f5b7]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5bee9ca8a25c - core[be1376de1771c445]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5bee9ca8a032 - core[be1376de1771c445]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x5bee9ca49b22 - <core[be1376de1771c445]::result::Result<alloc[67f3d27b5f289042]::string::String, std[55a9e161c3b27996]::io::error::Error>>::expect
[INFO] [stderr]     18:     0x5bee9ca475c8 - build_script_build[6c9e38581287f163]::parse_build_env
[INFO] [stderr]     19:     0x5bee9ca481a0 - build_script_build[6c9e38581287f163]::main
[INFO] [stderr]     20:     0x5bee9ca4c173 - <fn() as core[be1376de1771c445]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x5bee9ca47096 - std[55a9e161c3b27996]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x5bee9ca47509 - std[55a9e161c3b27996]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x5bee9ca733ba - <&dyn core[be1376de1771c445]::ops::function::Fn<(), Output = i32> + core[be1376de1771c445]::panic::unwind_safe::RefUnwindSafe + core[be1376de1771c445]::marker::Sync as core[be1376de1771c445]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5bee9ca733ba - std[55a9e161c3b27996]::panicking::catch_unwind::do_call::<&dyn core[be1376de1771c445]::ops::function::Fn<(), Output = i32> + core[be1376de1771c445]::panic::unwind_safe::RefUnwindSafe + core[be1376de1771c445]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:581:40
[INFO] [stderr]     25:     0x5bee9ca733ba - std[55a9e161c3b27996]::panicking::catch_unwind::<i32, &dyn core[be1376de1771c445]::ops::function::Fn<(), Output = i32> + core[be1376de1771c445]::panic::unwind_safe::RefUnwindSafe + core[be1376de1771c445]::marker::Sync>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x5bee9ca733ba - std[55a9e161c3b27996]::panic::catch_unwind::<&dyn core[be1376de1771c445]::ops::function::Fn<(), Output = i32> + core[be1376de1771c445]::panic::unwind_safe::RefUnwindSafe + core[be1376de1771c445]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5bee9ca733ba - std[55a9e161c3b27996]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5bee9ca733ba - std[55a9e161c3b27996]::panicking::catch_unwind::do_call::<std[55a9e161c3b27996]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:581:40
[INFO] [stderr]     29:     0x5bee9ca733ba - std[55a9e161c3b27996]::panicking::catch_unwind::<isize, std[55a9e161c3b27996]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x5bee9ca733ba - std[55a9e161c3b27996]::panic::catch_unwind::<std[55a9e161c3b27996]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5bee9ca733ba - std[55a9e161c3b27996]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5bee9ca46d11 - std[55a9e161c3b27996]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x5bee9ca4c825 - main
[INFO] [stderr]     34:     0x726e505521ca - <unknown>
[INFO] [stderr]     35:     0x726e5055228b - __libc_start_main
[INFO] [stderr]     36:     0x5bee9ca46395 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0053]: method `steps_between` has an incompatible type for trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86_64-0.14.10/src/addr.rs:348:51
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^ expected `(usize, Option<usize>)`, found `Option<usize>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected signature `fn(&addr::VirtAddr, &addr::VirtAddr) -> (usize, Option<usize>)`
[INFO] [stdout]                found signature `fn(&addr::VirtAddr, &addr::VirtAddr) -> Option<usize>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]     |
[INFO] [stdout] 348 -     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 348 +     fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `steps_between` has an incompatible type for trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86_64-0.14.10/src/structures/paging/page.rs:272:51
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^ expected `(usize, Option<usize>)`, found `Option<usize>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected signature `fn(&Page<_>, &Page<_>) -> (usize, Option<usize>)`
[INFO] [stdout]                found signature `fn(&Page<_>, &Page<_>) -> Option<usize>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]     |
[INFO] [stdout] 272 -     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 272 +     fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `(usize, Option<usize>)` is not an iterator
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86_64-0.14.10/src/structures/paging/page.rs:274:14
[INFO] [stdout]     |
[INFO] [stdout] 273 | /         Step::steps_between(&start.start_address, &end.start_address)
[INFO] [stdout] 274 | |             .map(|steps| steps / S::SIZE as usize)
[INFO] [stdout]     | |             -^^^ `(usize, Option<usize>)` is not an iterator
[INFO] [stdout]     | |_____________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `(usize, Option<usize>): Iterator`
[INFO] [stdout]             which is required by `&mut (usize, Option<usize>): Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86_64` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "afa7ccec594eae3b280bc0021454ee6762be2035b94c5687b383fbe29b0d4275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afa7ccec594eae3b280bc0021454ee6762be2035b94c5687b383fbe29b0d4275", kill_on_drop: false }`
[INFO] [stdout] afa7ccec594eae3b280bc0021454ee6762be2035b94c5687b383fbe29b0d4275
