[INFO] crate rucene 0.1.0 is already in cache [INFO] extracting crate rucene 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/rucene/0.1.0 [INFO] extracting crate rucene 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rucene/0.1.0 [INFO] validating manifest of rucene-0.1.0 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of rucene-0.1.0 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing rucene-0.1.0 [INFO] finished frobbing rucene-0.1.0 [INFO] frobbed toml for rucene-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rucene/0.1.0/Cargo.toml [INFO] started frobbing rucene-0.1.0 [INFO] finished frobbing rucene-0.1.0 [INFO] frobbed toml for rucene-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rucene/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing rucene-0.1.0 against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rucene/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 2fc2b062eceb80f172229eb94850f332d5c348123d080b2df57698e1df1b3c5c [INFO] running `"docker" "start" "-a" "2fc2b062eceb80f172229eb94850f332d5c348123d080b2df57698e1df1b3c5c"` [INFO] [stderr] Compiling fasthash v0.3.2 [INFO] [stderr] Compiling seahash v3.0.6 [INFO] [stderr] Compiling fasthash-sys v0.3.2 [INFO] [stderr] Compiling unicode_reader v0.1.1 [INFO] [stderr] Compiling xoroshiro128 v0.3.0 [INFO] [stderr] Compiling rucene v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/core/search/bm25_similarity.rs:27:1 [INFO] [stderr] | [INFO] [stderr] 27 | / /// BM25 Similarity. Introduced in Stephen E. Robertson, Steve Walker, [INFO] [stderr] 28 | | /// Susan Jones, Micheline Hancock-Beaulieu, and Mike Gatford. Okapi at TREC-3. [INFO] [stderr] 29 | | /// In Proceedings of the Third *T*ext *RE*trieval *C*onference (TREC 1994). [INFO] [stderr] 30 | | /// Gaithersburg, USA, November 1994. [INFO] [stderr] | |_____________________________________^ [INFO] [stderr] 31 | / lazy_static! { [INFO] [stderr] 32 | | static ref NORM_TABLE: [f32; 256] = { [INFO] [stderr] 33 | | let mut norm_table: [f32; 256] = [0f32; 256]; [INFO] [stderr] 34 | | for (i, norm) in norm_table.iter_mut().enumerate().skip(1) { [INFO] [stderr] ... | [INFO] [stderr] 40 | | }; [INFO] [stderr] 41 | | } [INFO] [stderr] | |_- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:18:1 [INFO] [stderr] | [INFO] [stderr] 18 | #![feature(exact_size_is_empty)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:19:1 [INFO] [stderr] | [INFO] [stderr] 19 | #![feature(drain_filter)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | #![feature(hashmap_internals)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | #![feature(fnbox)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 | #![feature(integer_atomics)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | #![feature(vec_remove_item)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 6 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `rucene`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "2fc2b062eceb80f172229eb94850f332d5c348123d080b2df57698e1df1b3c5c"` [INFO] running `"docker" "rm" "-f" "2fc2b062eceb80f172229eb94850f332d5c348123d080b2df57698e1df1b3c5c"` [INFO] [stdout] 2fc2b062eceb80f172229eb94850f332d5c348123d080b2df57698e1df1b3c5c