[INFO] cloning repository https://github.com/tiziano88/kernel-rs [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiziano88/kernel-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiziano88%2Fkernel-rs"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiziano88%2Fkernel-rs'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ec1759d10a02fadc6a94fcc8d557b0d597733129 [INFO] checking tiziano88/kernel-rs against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiziano88%2Fkernel-rs" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tiziano88/kernel-rs on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/tiziano88/kernel-rs [INFO] finished tweaking git repo https://github.com/tiziano88/kernel-rs [INFO] tweaked toml for git repo https://github.com/tiziano88/kernel-rs written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/tiziano88/kernel-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] a504ab0619c9c194ff19ecc6b961e84fe68adb6cbe7a02afb546abf1c7cfacb1 [INFO] running `"docker" "start" "-a" "a504ab0619c9c194ff19ecc6b961e84fe68adb6cbe7a02afb546abf1c7cfacb1"` [INFO] [stderr] Checking rlibc v0.1.5 [INFO] [stderr] Checking blog_os v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt` [INFO] [stderr] --> src/lib.rs:29:1 [INFO] [stderr] | [INFO] [stderr] 29 | #[lang = "panic_fmt"] extern fn panic_fmt() -> ! {loop{}} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt` [INFO] [stderr] [INFO] [stderr] error: `#[panic_handler]` function required, but not found [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/lib.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 20 | loop{} [INFO] [stderr] | ------ any code following this expression is unreachable [INFO] [stderr] 21 | [INFO] [stderr] 22 | let x = ["Hello", " ", "World", "!"]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0522`. [INFO] [stderr] error: could not compile `blog_os`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0152]: found duplicate lang item `eh_personality` [INFO] [stderr] --> src/lib.rs:28:28 [INFO] [stderr] | [INFO] [stderr] 28 | #[lang = "eh_personality"] extern fn eh_personality() {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `panic_unwind` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt` [INFO] [stderr] --> src/lib.rs:29:1 [INFO] [stderr] | [INFO] [stderr] 29 | #[lang = "panic_fmt"] extern fn panic_fmt() -> ! {loop{}} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt` [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/lib.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 20 | loop{} [INFO] [stderr] | ------ any code following this expression is unreachable [INFO] [stderr] 21 | [INFO] [stderr] 22 | let x = ["Hello", " ", "World", "!"]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0152, E0522. [INFO] [stderr] For more information about an error, try `rustc --explain E0152`. [INFO] [stderr] error: could not compile `blog_os`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "a504ab0619c9c194ff19ecc6b961e84fe68adb6cbe7a02afb546abf1c7cfacb1"` [INFO] running `"docker" "rm" "-f" "a504ab0619c9c194ff19ecc6b961e84fe68adb6cbe7a02afb546abf1c7cfacb1"` [INFO] [stdout] a504ab0619c9c194ff19ecc6b961e84fe68adb6cbe7a02afb546abf1c7cfacb1