[INFO] cloning repository https://github.com/darethas/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/darethas/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarethas%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarethas%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85b06cdf08949edf781a12ff6c98a80c17e9c29e
[INFO] checking darethas/blog_os against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarethas%2Fblog_os" "/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/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/darethas/blog_os
[INFO] finished tweaking git repo https://github.com/darethas/blog_os
[INFO] tweaked toml for git repo https://github.com/darethas/blog_os written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/darethas/blog_os on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/darethas/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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `blog_os` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-4-tc2/source/target/.../blog_os
[INFO] [stderr]    |                                                  ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `blog-os`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:8:8
[INFO] [stderr]    |
[INFO] [stderr]  8 - name = "blog_os"
[INFO] [stderr]  8 + name = "blog-os"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `blog-os`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:9:19
[INFO] [stderr]    |
[INFO] [stderr]  9 ~ version = "0.1.0"
[INFO] [stderr] 10 + [[bin]]
[INFO] [stderr] 11 + name = "blog-os"
[INFO] [stderr] 12 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `blog_os` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking darethas/blog_os against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarethas%2Fblog_os" "/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/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/darethas/blog_os
[INFO] finished tweaking git repo https://github.com/darethas/blog_os
[INFO] tweaked toml for git repo https://github.com/darethas/blog_os written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/darethas/blog_os on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/darethas/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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `blog_os` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-4-tc2/source/target/.../blog_os
[INFO] [stderr]    |                                                  ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `blog-os`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:8:8
[INFO] [stderr]    |
[INFO] [stderr]  8 - name = "blog_os"
[INFO] [stderr]  8 + name = "blog-os"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `blog-os`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:9:19
[INFO] [stderr]    |
[INFO] [stderr]  9 ~ version = "0.1.0"
[INFO] [stderr] 10 + [[bin]]
[INFO] [stderr] 11 + name = "blog-os"
[INFO] [stderr] 12 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `blog_os` (manifest) generated 1 warning
[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 rlibc v1.0.0
[INFO] [stderr]   Downloaded bootloader v0.9.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a
[INFO] running `Command { std: "docker" "start" "f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid --cfg crater_hack --force-warn invalid-c-variadic-arguments" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `blog_os` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../blog_os
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `blog-os`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:8:8
[INFO] [stderr]    |
[INFO] [stderr]  8 - name = "blog_os"
[INFO] [stderr]  8 + name = "blog-os"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `blog-os`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:9:19
[INFO] [stderr]    |
[INFO] [stderr]  9 ~ version = "0.1.0"
[INFO] [stderr] 10 + [[bin]]
[INFO] [stderr] 11 + name = "blog-os"
[INFO] [stderr] 12 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `blog_os` (manifest) generated 1 warning
[INFO] [stderr]    Compiling bootloader v0.9.8
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]     Checking blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 27 | |     loop {}
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/40527f3e444fde1deb361751bdef9b9e11d1b971/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-453218b5e9634890.rmeta
[INFO] [stdout]    = note: second definition in the local crate (`blog_os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blog_os` (bin "blog_os" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `blog_os` (bin "blog_os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a", kill_on_drop: false }`
[INFO] [stdout] f9c60d9244c3d383e28abbb0d59a2d3af809d737d7688b61d5ca079d4d37880a
