[INFO] fetching crate libsvm 0.2.1... [INFO] testing libsvm-0.2.1 against 1.55.0 for beta-1.56-1 [INFO] extracting crate libsvm 0.2.1 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate libsvm 0.2.1 on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate libsvm 0.2.1 [INFO] finished tweaking crates.io crate libsvm 0.2.1 [INFO] tweaked toml for crates.io crate libsvm 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded nalgebra v0.21.1 [INFO] [stderr] Downloaded sprs v0.7.1 [INFO] [stderr] Downloaded simba v0.1.5 [INFO] [stderr] Downloaded libsvm-sys v3.24.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7d993245e584f89b1acd7f98b059bfe70e38d01c54bc13a27f67260ed41a3042 [INFO] running `Command { std: "docker" "start" "-a" "7d993245e584f89b1acd7f98b059bfe70e38d01c54bc13a27f67260ed41a3042", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d993245e584f89b1acd7f98b059bfe70e38d01c54bc13a27f67260ed41a3042", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d993245e584f89b1acd7f98b059bfe70e38d01c54bc13a27f67260ed41a3042", kill_on_drop: false }` [INFO] [stdout] 7d993245e584f89b1acd7f98b059bfe70e38d01c54bc13a27f67260ed41a3042 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d11cd66d111826e892057a5e805d83c52fef73c2f2fef9f9e296334cf1702bcb [INFO] running `Command { std: "docker" "start" "-a" "d11cd66d111826e892057a5e805d83c52fef73c2f2fef9f9e296334cf1702bcb", kill_on_drop: false }` [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling libsvm-sys v3.24.0 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling backtrace v0.3.61 [INFO] [stderr] Compiling ctor v0.1.21 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling num v0.2.1 [INFO] [stderr] Compiling libsvm v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0432]: unresolved import `std::array::FixedSizeArray` [INFO] [stdout] --> src/data.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | array::FixedSizeArray, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ no `FixedSizeArray` in `array` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(const_generics)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(fixed_size_array)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(const_generics)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #44580 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'array_methods' [INFO] [stdout] --> src/data.rs:121:28 [INFO] [stdout] | [INFO] [stdout] 121 | .map(|row| row.as_slice()) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #76118 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'array_methods' [INFO] [stdout] --> src/data.rs:133:28 [INFO] [stdout] | [INFO] [stdout] 133 | .map(|row| row.as_slice()) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #76118 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] [stderr] error: could not compile `libsvm` due to 6 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "d11cd66d111826e892057a5e805d83c52fef73c2f2fef9f9e296334cf1702bcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d11cd66d111826e892057a5e805d83c52fef73c2f2fef9f9e296334cf1702bcb", kill_on_drop: false }` [INFO] [stdout] d11cd66d111826e892057a5e805d83c52fef73c2f2fef9f9e296334cf1702bcb