[INFO] updating cached repository https://github.com/leizongmin/study-rust-osdev [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 44dbe02aea1b88bc9d26ba254d4d718684a3737e [INFO] testing leizongmin/study-rust-osdev against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleizongmin%2Fstudy-rust-osdev" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/leizongmin/study-rust-osdev on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/leizongmin/study-rust-osdev [INFO] finished tweaking git repo https://github.com/leizongmin/study-rust-osdev [INFO] tweaked toml for git repo https://github.com/leizongmin/study-rust-osdev written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/leizongmin/study-rust-osdev already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1e939ff7473505638437be2d36cc5cb8721db6c844cee81c166d49d5dd00502c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1e939ff7473505638437be2d36cc5cb8721db6c844cee81c166d49d5dd00502c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e939ff7473505638437be2d36cc5cb8721db6c844cee81c166d49d5dd00502c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e939ff7473505638437be2d36cc5cb8721db6c844cee81c166d49d5dd00502c", kill_on_drop: false }` [INFO] [stdout] 1e939ff7473505638437be2d36cc5cb8721db6c844cee81c166d49d5dd00502c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ee81eb2b4d33cce58bcdf4ffb452df8f0765aa80bbe8d970d88abbe029348756 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ee81eb2b4d33cce58bcdf4ffb452df8f0765aa80bbe8d970d88abbe029348756", kill_on_drop: false }` [INFO] [stderr] Compiling leios v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0522]: definition of an unknown language item: `panic_fmt` [INFO] [stdout] --> src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | #[lang = "panic_fmt"] // define a function that should be called on panic [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `#[panic_handler]` function required, but not found [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0522`. [INFO] [stdout] [INFO] [stderr] error: could not compile `leios`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "ee81eb2b4d33cce58bcdf4ffb452df8f0765aa80bbe8d970d88abbe029348756", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee81eb2b4d33cce58bcdf4ffb452df8f0765aa80bbe8d970d88abbe029348756", kill_on_drop: false }` [INFO] [stdout] ee81eb2b4d33cce58bcdf4ffb452df8f0765aa80bbe8d970d88abbe029348756