[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 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephFerano%2Frust_os" "/workspace/builds/worker-75/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JosephFerano/rust_os on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-75/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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 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-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7fc53bea3a4855f3bad13c71d227c4bfa337d17eeef4912f36f1688207d0f0ae [INFO] running `Command { std: "docker" "start" "-a" "7fc53bea3a4855f3bad13c71d227c4bfa337d17eeef4912f36f1688207d0f0ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7fc53bea3a4855f3bad13c71d227c4bfa337d17eeef4912f36f1688207d0f0ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7fc53bea3a4855f3bad13c71d227c4bfa337d17eeef4912f36f1688207d0f0ae", kill_on_drop: false }` [INFO] [stdout] 7fc53bea3a4855f3bad13c71d227c4bfa337d17eeef4912f36f1688207d0f0ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a66b445c46c42da9b7828a7f2ae13dc0a4ad4b25d5cecc82c410f5c634c8774 [INFO] running `Command { std: "docker" "start" "-a" "7a66b445c46c42da9b7828a7f2ae13dc0a4ad4b25d5cecc82c410f5c634c8774", 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] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(lang_items)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [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: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `first_os` due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "7a66b445c46c42da9b7828a7f2ae13dc0a4ad4b25d5cecc82c410f5c634c8774", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a66b445c46c42da9b7828a7f2ae13dc0a4ad4b25d5cecc82c410f5c634c8774", kill_on_drop: false }` [INFO] [stdout] 7a66b445c46c42da9b7828a7f2ae13dc0a4ad4b25d5cecc82c410f5c634c8774