[INFO] crate cargo-src 0.1.6 is already in cache
[INFO] extracting crate cargo-src 0.1.6 into work/ex/beta-1.37-6/sources/1.36.0/reg/cargo-src/0.1.6
[INFO] extracting crate cargo-src 0.1.6 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cargo-src/0.1.6
[INFO] validating manifest of cargo-src-0.1.6 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 cargo-src-0.1.6 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 cargo-src-0.1.6
[INFO] finished frobbing cargo-src-0.1.6
[INFO] frobbed toml for cargo-src-0.1.6 written to work/ex/beta-1.37-6/sources/1.36.0/reg/cargo-src/0.1.6/Cargo.toml
[INFO] started frobbing cargo-src-0.1.6
[INFO] finished frobbing cargo-src-0.1.6
[INFO] frobbed toml for cargo-src-0.1.6 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cargo-src/0.1.6/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 cargo-src-0.1.6 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/cargo-src/0.1.6:/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] 0a3dd8a8d40a5810e397e5263e5d41cf1d5cdfb9afd01f1c01d96f3829546cdb
[INFO] running `"docker" "start" "-a" "0a3dd8a8d40a5810e397e5263e5d41cf1d5cdfb9afd01f1c01d96f3829546cdb"`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling try-lock v0.1.0
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling entities v1.0.1
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling rls-blacklist v0.1.3
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling rls-span v0.4.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling radix_trie v0.1.4
[INFO] [stderr]    Compiling cargo-src v0.1.6 (/opt/crater/workdir)
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling rustdoc-highlight v0.1.7
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.7/src/lib.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | #![feature(rustc_private)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling rls-data v0.16.0
[INFO] [stderr] error[E0599]: no function or associated item named `new` found for type `syntax::parse::lexer::StringReader<'_>` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.7/src/lib.rs:56:63
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut classifier = Classifier::new(lexer::StringReader::new(&sess, fm, None), sess.source_map());
[INFO] [stderr]    |                                                               ^^^ function or associated item not found in `syntax::parse::lexer::StringReader<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new` found for type `syntax::parse::lexer::StringReader<'_>` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.7/src/lib.rs:76:63
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut classifier = Classifier::new(lexer::StringReader::new(&sess, fm, None), sess.source_map());
[INFO] [stderr]    |                                                               ^^^ function or associated item not found in `syntax::parse::lexer::StringReader<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0624]: method `emit_fatal_errors` is private
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.7/src/lib.rs:200:32
[INFO] [stderr]     |
[INFO] [stderr] 200 |                     self.lexer.emit_fatal_errors();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0616]: field `sess` of struct `syntax::parse::lexer::StringReader` is private
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.7/src/lib.rs:201:21
[INFO] [stderr]     |
[INFO] [stderr] 201 |                     self.lexer.sess.span_diagnostic
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599, E0616, E0624.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `rustdoc-highlight`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0a3dd8a8d40a5810e397e5263e5d41cf1d5cdfb9afd01f1c01d96f3829546cdb"`
[INFO] running `"docker" "rm" "-f" "0a3dd8a8d40a5810e397e5263e5d41cf1d5cdfb9afd01f1c01d96f3829546cdb"`
[INFO] [stdout] 0a3dd8a8d40a5810e397e5263e5d41cf1d5cdfb9afd01f1c01d96f3829546cdb