[INFO] cloning repository https://github.com/nicholasfagan/asmos [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicholasfagan/asmos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fasmos"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fasmos'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cbefbf8464116cb643c028e2be44250e78e085f8 [INFO] checking nicholasfagan/asmos against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fasmos" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nicholasfagan/asmos on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/nicholasfagan/asmos [INFO] finished tweaking git repo https://github.com/nicholasfagan/asmos [INFO] tweaked toml for git repo https://github.com/nicholasfagan/asmos written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/nicholasfagan/asmos already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f31a537100ad93c881c12c5c7f291e94b3263e1730b162a5ebe3c073ec547987 [INFO] running `"docker" "start" "-a" "f31a537100ad93c881c12c5c7f291e94b3263e1730b162a5ebe3c073ec547987"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling bootloader v0.7.1 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking cast v0.2.2 [INFO] [stderr] Checking spin v0.5.0 [INFO] [stderr] Checking bit_field v0.9.0 [INFO] [stderr] Checking ux v0.1.3 [INFO] [stderr] Checking volatile v0.2.6 [INFO] [stderr] Checking array-init v0.0.4 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking x86_64 v0.7.5 [INFO] [stderr] Checking asmos v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage [INFO] [stderr] --> src/io.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | asm!("outb %al, %dx" :: "{dx}"(port), "{al}"(data) :: "volatile"); [INFO] [stderr] | ^^^ help: replace the use of the deprecated item: `llvm_asm` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage [INFO] [stderr] --> src/io.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | asm!("inb %dx, %al" : "={al}"(result) : "{dx}"(port) :: "volatile"); [INFO] [stderr] | ^^^ help: replace the use of the deprecated item: `llvm_asm` [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage [INFO] [stderr] --> src/io.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | asm!("outb %al, %dx" :: "{dx}"(port), "{al}"(data) :: "volatile"); [INFO] [stderr] | ^^^ help: replace the use of the deprecated item: `llvm_asm` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage [INFO] [stderr] --> src/io.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | asm!("inb %dx, %al" : "={al}"(result) : "{dx}"(port) :: "volatile"); [INFO] [stderr] | ^^^ help: replace the use of the deprecated item: `llvm_asm` [INFO] [stderr] [INFO] [stderr] error: language item required, but not found: `eh_personality` [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/vga.rs:167:23 [INFO] [stderr] | [INFO] [stderr] 167 | ($($arg:tt)*) => ($crate::vga::_print(format_args!($($arg)*))); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | loop{} [INFO] [stderr] | ------ any code following this expression is unreachable [INFO] [stderr] 28 | } [INFO] [stderr] 29 | println!("Passing control to kmain()."); [INFO] [stderr] | ---------------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 3 warnings emitted [INFO] [stderr] [INFO] [stderr] error: could not compile `asmos`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "f31a537100ad93c881c12c5c7f291e94b3263e1730b162a5ebe3c073ec547987"` [INFO] running `"docker" "rm" "-f" "f31a537100ad93c881c12c5c7f291e94b3263e1730b162a5ebe3c073ec547987"` [INFO] [stdout] f31a537100ad93c881c12c5c7f291e94b3263e1730b162a5ebe3c073ec547987