[INFO] cloning repository https://github.com/minyukim/blog_os [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/minyukim/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminyukim%2Fblog_os", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminyukim%2Fblog_os'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f8d663b70ac73aaac86b7a692fc720bf70e197e5 [INFO] testing minyukim/blog_os against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminyukim%2Fblog_os" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/minyukim/blog_os [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/minyukim/blog_os [INFO] tweaked toml for git repo https://github.com/minyukim/blog_os written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/minyukim/blog_os on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/minyukim/blog_os already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded linked_list_allocator v0.9.1 [INFO] [stderr] Downloaded pic8259 v0.10.4 [INFO] [stderr] Downloaded bootloader v0.9.31 [INFO] [stderr] Downloaded uart_16550 v0.2.19 [INFO] [stderr] Downloaded pc-keyboard v0.7.0 [INFO] [stderr] Downloaded conquer-once v0.2.1 [INFO] [stderr] Downloaded x86_64 v0.14.13 [INFO] [stderr] Downloaded conquer-util v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 81ab252e729eb157df46af41bec8701f91976ded91c0c4f1412457061fe2edbb [INFO] running `Command { std: "docker" "start" "-a" "81ab252e729eb157df46af41bec8701f91976ded91c0c4f1412457061fe2edbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "81ab252e729eb157df46af41bec8701f91976ded91c0c4f1412457061fe2edbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81ab252e729eb157df46af41bec8701f91976ded91c0c4f1412457061fe2edbb", kill_on_drop: false }` [INFO] [stdout] 81ab252e729eb157df46af41bec8701f91976ded91c0c4f1412457061fe2edbb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5b0d63ef9a146516b056b17f0a610001eb79ef3aece9c490ed22c0015537eb91 [INFO] running `Command { std: "docker" "start" "-a" "5b0d63ef9a146516b056b17f0a610001eb79ef3aece9c490ed22c0015537eb91", kill_on_drop: false }` [INFO] [stderr] Compiling bit_field v0.10.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling bitflags v2.9.1 [INFO] [stderr] Compiling volatile v0.4.6 [INFO] [stderr] Compiling bootloader v0.9.31 [INFO] [stderr] Compiling futures-task v0.3.31 [INFO] [stderr] Compiling futures-core v0.3.31 [INFO] [stderr] Compiling conquer-util v0.2.0 [INFO] [stderr] Compiling pc-keyboard v0.7.0 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling volatile v0.2.7 [INFO] [stderr] Compiling spinning_top v0.2.5 [INFO] [stderr] Compiling linked_list_allocator v0.9.1 [INFO] [stderr] Compiling x86_64 v0.14.13 [INFO] [stderr] Compiling conquer-once v0.2.1 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling crossbeam-queue v0.3.12 [INFO] [stderr] Compiling pic8259 v0.10.4 [INFO] [stderr] Compiling uart_16550 v0.2.19 [INFO] [stderr] Compiling blog_os v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/allocator.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn lock(&self) -> spin::MutexGuard { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 25 | pub fn lock(&self) -> spin::MutexGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: unwinding panics are not supported without std [INFO] [stdout] | [INFO] [stdout] = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding [INFO] [stdout] = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 66 | executor.run(); [INFO] [stdout] | -------------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 71 | println!("It did not crash!"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] = note: this warning originates in the macro `$crate::print` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `blog_os` (bin "blog_os") due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "5b0d63ef9a146516b056b17f0a610001eb79ef3aece9c490ed22c0015537eb91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b0d63ef9a146516b056b17f0a610001eb79ef3aece9c490ed22c0015537eb91", kill_on_drop: false }` [INFO] [stdout] 5b0d63ef9a146516b056b17f0a610001eb79ef3aece9c490ed22c0015537eb91