[INFO] fetching crate neutron-star-rt 0.2.1... [INFO] testing neutron-star-rt-0.2.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate neutron-star-rt 0.2.1 into /workspace/builds/worker-5-tc1/source [INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config [INFO] started tweaking crates.io crate neutron-star-rt 0.2.1 [INFO] finished tweaking crates.io crate neutron-star-rt 0.2.1 [INFO] tweaked toml for crates.io crate neutron-star-rt 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate neutron-star-rt 0.2.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 2 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5bf84f173a739a86eec84fb8d3185e54ae3cd0c57074e85af47b386e03049d03 [INFO] running `Command { std: "docker" "start" "-a" "5bf84f173a739a86eec84fb8d3185e54ae3cd0c57074e85af47b386e03049d03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5bf84f173a739a86eec84fb8d3185e54ae3cd0c57074e85af47b386e03049d03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bf84f173a739a86eec84fb8d3185e54ae3cd0c57074e85af47b386e03049d03", kill_on_drop: false }` [INFO] [stdout] 5bf84f173a739a86eec84fb8d3185e54ae3cd0c57074e85af47b386e03049d03 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 3911615573ac8f76d0e37b21ea3ade323e8ba8e1a5fd59d16eb3618fcac439e7 [INFO] running `Command { std: "docker" "start" "-a" "3911615573ac8f76d0e37b21ea3ade323e8ba8e1a5fd59d16eb3618fcac439e7", kill_on_drop: false }` [INFO] [stderr] Compiling neutron-star-rt v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:1:24 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(lang_items, start)] [INFO] [stdout] | ^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.86.0 (you are using 1.89.0-nightly (8de4c7234 2025-06-19)); see for more information [INFO] [stdout] = note: not portable enough and never RFC'd [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `start` in this scope [INFO] [stdout] --> src/lib.rs:20:3 [INFO] [stdout] | [INFO] [stdout] 20 | #[start] [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(lang_items, start)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: using it is strongly discouraged [INFO] [stdout] = note: `#[warn(internal_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stderr] error: could not compile `neutron-star-rt` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "3911615573ac8f76d0e37b21ea3ade323e8ba8e1a5fd59d16eb3618fcac439e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3911615573ac8f76d0e37b21ea3ade323e8ba8e1a5fd59d16eb3618fcac439e7", kill_on_drop: false }` [INFO] [stdout] 3911615573ac8f76d0e37b21ea3ade323e8ba8e1a5fd59d16eb3618fcac439e7