[INFO] cloning repository https://github.com/JosephFerano/rust_os [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JosephFerano/rust_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephFerano%2Frust_os", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephFerano%2Frust_os'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0502adec20e78e6019d68a023520c0c30f3fcff8 [INFO] testing JosephFerano/rust_os against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephFerano%2Frust_os" "/workspace/builds/worker-59/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JosephFerano/rust_os on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JosephFerano/rust_os [INFO] finished tweaking git repo https://github.com/JosephFerano/rust_os [INFO] tweaked toml for git repo https://github.com/JosephFerano/rust_os written to /workspace/builds/worker-59/source/Cargo.toml [INFO] crate git repo https://github.com/JosephFerano/rust_os already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded volatile v0.2.4 [INFO] [stderr] Downloaded multiboot2 v0.7.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 240d704bf2a5245c8dcf37ad87c8fb8c77eb98a41d0be758f7ce335254859c0a [INFO] running `Command { std: "docker" "start" "-a" "240d704bf2a5245c8dcf37ad87c8fb8c77eb98a41d0be758f7ce335254859c0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "240d704bf2a5245c8dcf37ad87c8fb8c77eb98a41d0be758f7ce335254859c0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "240d704bf2a5245c8dcf37ad87c8fb8c77eb98a41d0be758f7ce335254859c0a", kill_on_drop: false }` [INFO] [stdout] 240d704bf2a5245c8dcf37ad87c8fb8c77eb98a41d0be758f7ce335254859c0a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dbdf98d09ff6af9781f403da518d4467a7e6588d65ba5f846eee3d25174dd831 [INFO] running `Command { std: "docker" "start" "-a" "dbdf98d09ff6af9781f403da518d4467a7e6588d65ba5f846eee3d25174dd831", kill_on_drop: false }` [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling volatile v0.2.4 [INFO] [stderr] Compiling multiboot2 v0.7.1 [INFO] [stderr] Compiling first_os v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/vga_buffer.rs:89:21 [INFO] [stdout] | [INFO] [stdout] 89 | 0x20...0x7e | b'\n' => self.write_byte(byte), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `clear_screen` [INFO] [stdout] --> src/vga_buffer.rs:121:12 [INFO] [stdout] | [INFO] [stdout] 121 | pub fn clear_screen(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | / writeln!(writer, " start: 0x{:x}, end: 0x{:x}, size: {:x}", [INFO] [stdout] 26 | | area.start_address(), [INFO] [stdout] 27 | | area.end_address(), [INFO] [stdout] 28 | | area.size()); [INFO] [stdout] | |________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | / writeln!(writer, " addr: 0x{:x}, size: 0x{:x}, flags: 0x{:x}", [INFO] [stdout] 37 | | section.start_address(), [INFO] [stdout] 38 | | section.size(), [INFO] [stdout] 39 | | section.flags()); [INFO] [stdout] | |____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | writeln!(writer, "Kernel Start: 0x{:x}, Kernel End: 0x{:x}", kernel_start, kernel_end); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | writeln!(writer, "Multiboot Start: 0x{:x}, Multiboot End: 0x{:x}", multiboot_start, multiboot_end); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:68:5 [INFO] [stdout] | [INFO] [stdout] 68 | writeln!(writer, "{}", info); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.09s [INFO] running `Command { std: "docker" "inspect" "dbdf98d09ff6af9781f403da518d4467a7e6588d65ba5f846eee3d25174dd831", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dbdf98d09ff6af9781f403da518d4467a7e6588d65ba5f846eee3d25174dd831", kill_on_drop: false }` [INFO] [stdout] dbdf98d09ff6af9781f403da518d4467a7e6588d65ba5f846eee3d25174dd831 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f6e5c476aa47e1c1805c04467f33e3f0a8a6bb4f5943dff78b4973961f0ed12a [INFO] running `Command { std: "docker" "start" "-a" "f6e5c476aa47e1c1805c04467f33e3f0a8a6bb4f5943dff78b4973961f0ed12a", kill_on_drop: false }` [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling volatile v0.2.4 [INFO] [stderr] Compiling multiboot2 v0.7.1 [INFO] [stderr] Compiling first_os v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/vga_buffer.rs:89:21 [INFO] [stdout] | [INFO] [stdout] 89 | 0x20...0x7e | b'\n' => self.write_byte(byte), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `eh_personality` [INFO] [stdout] --> src/lib.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | pub extern fn eh_personality() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `panic_unwind` (which `std` depends on) [INFO] [stdout] = note: first definition in `panic_unwind` loaded from /opt/rustwide/rustup-home/toolchains/8262275854dc0e5381c9d42d56257d94932c5a87/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-dd8bf3fda2fc2c51.rlib [INFO] [stdout] = note: second definition in the local crate (`first_os`) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl` [INFO] [stdout] --> src/lib.rs:66:1 [INFO] [stdout] | [INFO] [stdout] 66 | pub extern fn panic(info : &PanicInfo) -> ! { [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/8262275854dc0e5381c9d42d56257d94932c5a87/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7387d118fba15d64.so, /opt/rustwide/rustup-home/toolchains/8262275854dc0e5381c9d42d56257d94932c5a87/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7387d118fba15d64.rlib [INFO] [stdout] = note: second definition in the local crate (`first_os`) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0152`. [INFO] [stdout] [INFO] [stderr] error: could not compile `first_os` due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "f6e5c476aa47e1c1805c04467f33e3f0a8a6bb4f5943dff78b4973961f0ed12a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6e5c476aa47e1c1805c04467f33e3f0a8a6bb4f5943dff78b4973961f0ed12a", kill_on_drop: false }` [INFO] [stdout] f6e5c476aa47e1c1805c04467f33e3f0a8a6bb4f5943dff78b4973961f0ed12a