[INFO] cloning repository https://github.com/tomyamkum/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/tomyamkum/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomyamkum%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomyamkum%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 137760db74d5463e8f1f49cd9361c9e67860216a
[INFO] testing tomyamkum/blog_os against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomyamkum%2Fblog_os" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/tomyamkum/blog_os on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-28/source/.cargo/config
[INFO] started tweaking git repo https://github.com/tomyamkum/blog_os
[INFO] finished tweaking git repo https://github.com/tomyamkum/blog_os
[INFO] tweaked toml for git repo https://github.com/tomyamkum/blog_os written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/tomyamkum/blog_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d554b2e5efdc4abf63381ecd031cfbdd2b1311c561de55aab682f0356673d4e5
[INFO] running `Command { std: "docker" "start" "-a" "d554b2e5efdc4abf63381ecd031cfbdd2b1311c561de55aab682f0356673d4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d554b2e5efdc4abf63381ecd031cfbdd2b1311c561de55aab682f0356673d4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d554b2e5efdc4abf63381ecd031cfbdd2b1311c561de55aab682f0356673d4e5", kill_on_drop: false }`
[INFO] [stdout] d554b2e5efdc4abf63381ecd031cfbdd2b1311c561de55aab682f0356673d4e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5047ff7515dc7df436601a59e298460c30ed60129540437138de6e47cb1e5998
[INFO] running `Command { std: "docker" "start" "-a" "5047ff7515dc7df436601a59e298460c30ed60129540437138de6e47cb1e5998", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bootloader v0.8.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling volatile v0.2.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 13 |     panic!("Some panic mesage");
[INFO] [stdout]    |     --------------------------- any code following this expression is unreachable
[INFO] [stdout] 14 |     loop {}
[INFO] [stdout]    |     ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `HELLO`
[INFO] [stdout]  --> src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | 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: "cc" "-m64" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.9.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/liblazy_static-e44975308d3ba412.rlib" "/opt/rustwide/target/debug/deps/libspin-04f20fa3110fc727.rlib" "/opt/rustwide/target/debug/deps/libvolatile-59d8cb597399ee28.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-fb6b78ac543a58ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1d1f2d1bec6f51b8.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-acf5ff6e9595d982.rlib" "-Wl,-Bdynamic" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/blog_os-e72a22164b2dfd60.blog_os.dcdd4304-cgu.10.rcgu.o: in function `_start':
[INFO] [stdout]           /opt/rustwide/workdir/src/main.rs:11: multiple definition of `_start'; /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stdout]           /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
[INFO] [stdout]           (.text+0x16): undefined reference to `__libc_csu_fini'
[INFO] [stdout]           /usr/bin/ld: (.text+0x1d): undefined reference to `__libc_csu_init'
[INFO] [stdout]           /usr/bin/ld: (.text+0x24): undefined reference to `main'
[INFO] [stdout]           /usr/bin/ld: (.text+0x2a): undefined reference to `__libc_start_main'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: 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; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blog_os` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5047ff7515dc7df436601a59e298460c30ed60129540437138de6e47cb1e5998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5047ff7515dc7df436601a59e298460c30ed60129540437138de6e47cb1e5998", kill_on_drop: false }`
[INFO] [stdout] 5047ff7515dc7df436601a59e298460c30ed60129540437138de6e47cb1e5998