[INFO] cloning repository https://github.com/YsuOS/blog_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YsuOS/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYsuOS%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYsuOS%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 357c6a5d9960627f6b312623db729ff279169253
[INFO] checking YsuOS/blog_os against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYsuOS%2Fblog_os" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YsuOS/blog_os on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-26/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/YsuOS/blog_os
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/YsuOS/blog_os
[INFO] tweaked toml for git repo https://github.com/YsuOS/blog_os written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/YsuOS/blog_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc29ab73865f6e92c4233e0b9690cb5c8380259e749e37ab780e4a5d9983a1c9
[INFO] running `Command { std: "docker" "start" "-a" "dc29ab73865f6e92c4233e0b9690cb5c8380259e749e37ab780e4a5d9983a1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc29ab73865f6e92c4233e0b9690cb5c8380259e749e37ab780e4a5d9983a1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc29ab73865f6e92c4233e0b9690cb5c8380259e749e37ab780e4a5d9983a1c9", kill_on_drop: false }`
[INFO] [stdout] dc29ab73865f6e92c4233e0b9690cb5c8380259e749e37ab780e4a5d9983a1c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b53623a25cda0df61dd6c7cae7b2ec52670ded51e5b6dcb45b6e094a1b8f23
[INFO] running `Command { std: "docker" "start" "-a" "b6b53623a25cda0df61dd6c7cae7b2ec52670ded51e5b6dcb45b6e094a1b8f23", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling x86_64 v0.14.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking volatile v0.4.4
[INFO] [stderr]    Compiling bootloader v0.9.19
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking pc-keyboard v0.5.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking spinning_top v0.2.4
[INFO] [stderr]     Checking linked_list_allocator v0.9.1
[INFO] [stderr]     Checking pic8259 v0.10.2
[INFO] [stderr]     Checking uart_16550 v0.2.15
[INFO] [stderr]     Checking blog_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 import: `core::ptr::null_mut`
[INFO] [stdout]  --> src/allocator.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::ptr::null_mut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 import: `core::ptr::null_mut`
[INFO] [stdout]  --> src/allocator.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::ptr::null_mut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `x86_64::instructions::segmentation::set_cs`: use `CS::set_reg()` instead
[INFO] [stdout]   --> src/gdt.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         set_cs(GDT.1.code_selector);
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `x86_64::instructions::segmentation::set_cs`: use `CS::set_reg()` instead
[INFO] [stdout]   --> src/gdt.rs:39:45
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use x86_64::instructions::segmentation::set_cs;
[INFO] [stdout]    |                                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `x86_64::instructions::segmentation::set_cs`: use `CS::set_reg()` instead
[INFO] [stdout]   --> src/gdt.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         set_cs(GDT.1.code_selector);
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `x86_64::instructions::segmentation::set_cs`: use `CS::set_reg()` instead
[INFO] [stdout]   --> src/gdt.rs:39:45
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use x86_64::instructions::segmentation::set_cs;
[INFO] [stdout]    |                                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blog_os` due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b6b53623a25cda0df61dd6c7cae7b2ec52670ded51e5b6dcb45b6e094a1b8f23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b53623a25cda0df61dd6c7cae7b2ec52670ded51e5b6dcb45b6e094a1b8f23", kill_on_drop: false }`
[INFO] [stdout] b6b53623a25cda0df61dd6c7cae7b2ec52670ded51e5b6dcb45b6e094a1b8f23