[INFO] cloning repository https://github.com/PaiGack/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/PaiGack/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPaiGack%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPaiGack%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40e2226ea2f8a3bae4de179d958adf0d0f16f921
[INFO] testing PaiGack/blog_os against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPaiGack%2Fblog_os" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PaiGack/blog_os on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/PaiGack/blog_os
[INFO] finished tweaking git repo https://github.com/PaiGack/blog_os
[INFO] tweaked toml for git repo https://github.com/PaiGack/blog_os written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/PaiGack/blog_os 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.9.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06c1c1e388d5ad14c02d8f1e4680964b7bd98a0d1e35b122b58bf53da16e5950
[INFO] running `Command { std: "docker" "start" "-a" "06c1c1e388d5ad14c02d8f1e4680964b7bd98a0d1e35b122b58bf53da16e5950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06c1c1e388d5ad14c02d8f1e4680964b7bd98a0d1e35b122b58bf53da16e5950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c1c1e388d5ad14c02d8f1e4680964b7bd98a0d1e35b122b58bf53da16e5950", kill_on_drop: false }`
[INFO] [stdout] 06c1c1e388d5ad14c02d8f1e4680964b7bd98a0d1e35b122b58bf53da16e5950
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7fe4dcef48d4c76b929195cde7617505614fef423ad14b3c82c0ce3d7eb389f
[INFO] running `Command { std: "docker" "start" "-a" "d7fe4dcef48d4c76b929195cde7617505614fef423ad14b3c82c0ce3d7eb389f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.21
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::fmt::Write`
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     use core::fmt::Write;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     panic!("Some panic message");
[INFO] [stdout]    |     ---------------------------- any code following this expression is unreachable
[INFO] [stdout] 24 |     loop {}
[INFO] [stdout]    |     ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hasher`
[INFO] [stdout]    --> src/vga_buffer.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 | use core::{fmt, hash::Hasher};
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `HELLO` is never used
[INFO] [stdout]   --> src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | static HELLO: &[u8] = b"Hello World!";
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcOqpVHN/symbols.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.9.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libspin-3eba02df5e3bc797.rlib" "/opt/rustwide/target/debug/deps/liblock_api-03e07c3f0fdeffbf.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-0a75c219c7725610.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-2f8beead707ffe49.rlib" "/opt/rustwide/target/debug/deps/libspin-d0481a4ab4425571.rlib" "/opt/rustwide/target/debug/deps/libvolatile-dd497b3c0c07b6d3.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-207f06e41d9603af.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-7e2768e66e984e85.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-957b4aff41f8cd46.rlib" "-Wl,-Bdynamic" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/blog_os-235927390bb3f787" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/blog_os-235927390bb3f787.blog_os.73734243-cgu.8.rcgu.o: in function `_start':
[INFO] [stdout]           /opt/rustwide/workdir/src/main.rs:20: multiple definition of `_start'; /usr/lib/gcc/x86_64-linux-gnu/11/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stdout]           /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/11/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
[INFO] [stdout]           (.text+0x1b): undefined reference to `main'
[INFO] [stdout]           /usr/bin/ld: (.text+0x21): undefined reference to `__libc_start_main'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[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] running `Command { std: "docker" "inspect" "d7fe4dcef48d4c76b929195cde7617505614fef423ad14b3c82c0ce3d7eb389f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7fe4dcef48d4c76b929195cde7617505614fef423ad14b3c82c0ce3d7eb389f", kill_on_drop: false }`
[INFO] [stdout] d7fe4dcef48d4c76b929195cde7617505614fef423ad14b3c82c0ce3d7eb389f
