[INFO] cloning repository https://github.com/NZqian/ning-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NZqian/ning-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNZqian%2Fning-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNZqian%2Fning-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f276e1f1dbadf7140717d1c4b3b27e4415956a14
[INFO] testing NZqian/ning-os against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNZqian%2Fning-os" "/workspace/builds/worker-44/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-44/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NZqian/ning-os on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-44/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/NZqian/ning-os
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/NZqian/ning-os
[INFO] tweaked toml for git repo https://github.com/NZqian/ning-os written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate git repo https://github.com/NZqian/ning-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a79e6a0f4883827c0c280f69ca2e9107b083ded210557e94ee18921d1b5f3713
[INFO] running `Command { std: "docker" "start" "-a" "a79e6a0f4883827c0c280f69ca2e9107b083ded210557e94ee18921d1b5f3713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a79e6a0f4883827c0c280f69ca2e9107b083ded210557e94ee18921d1b5f3713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79e6a0f4883827c0c280f69ca2e9107b083ded210557e94ee18921d1b5f3713", kill_on_drop: false }`
[INFO] [stdout] a79e6a0f4883827c0c280f69ca2e9107b083ded210557e94ee18921d1b5f3713
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d69248e7e539d4d73ac004ca348be066912d73b41517e20b22215e265fecba40
[INFO] running `Command { std: "docker" "start" "-a" "d69248e7e539d4d73ac004ca348be066912d73b41517e20b22215e265fecba40", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling x86_64 v0.14.3
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling volatile v0.4.4
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling bootloader v0.9.18
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling pc-keyboard v0.5.1
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling buddy_system_allocator v0.8.0
[INFO] [stderr]    Compiling spinning_top v0.2.4
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling linked_list_allocator v0.9.0
[INFO] [stderr]    Compiling pic8259 v0.10.1
[INFO] [stderr]    Compiling uart_16550 v0.2.15
[INFO] [stderr]    Compiling ning_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `GlobalAlloc`, `Layout`
[INFO] [stdout]  --> src/allocator.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::alloc::{GlobalAlloc, Layout};
[INFO] [stdout]   |                    ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `panic`, `ptr::null_mut`
[INFO] [stdout]  --> src/allocator.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::{result::Result, panic, ptr::null_mut};
[INFO] [stdout]   |                            ^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `time_cnt` should have an upper case name
[INFO] [stdout]   --> src/interrupts.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 | static mut time_cnt: u8 = 0;
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to upper case: `TIME_CNT`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ning_os` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d69248e7e539d4d73ac004ca348be066912d73b41517e20b22215e265fecba40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d69248e7e539d4d73ac004ca348be066912d73b41517e20b22215e265fecba40", kill_on_drop: false }`
[INFO] [stdout] d69248e7e539d4d73ac004ca348be066912d73b41517e20b22215e265fecba40