[INFO] crate cargo-src 0.1.6 is already in cache
[INFO] extracting crate cargo-src 0.1.6 into work/ex/beta-1.38-1/sources/1.37.0/reg/cargo-src/0.1.6
[INFO] extracting crate cargo-src 0.1.6 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cargo-src/0.1.6
[INFO] validating manifest of cargo-src-0.1.6 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cargo-src-0.1.6 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/cargo-src/0.1.6/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustdoc-highlight v0.1.9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing cargo-src-0.1.6 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a8f44f05bc61abff940b3d8d8d4d5824e50f80e65f578b42c160a33e9c4d0688
[INFO] running `"docker" "start" "-a" "a8f44f05bc61abff940b3d8d8d4d5824e50f80e65f578b42c160a33e9c4d0688"`
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling entities v1.0.1
[INFO] [stderr]    Compiling typed-arena v1.5.0
[INFO] [stderr]    Compiling rls-blacklist v0.1.3
[INFO] [stderr]    Compiling rls-span v0.4.1
[INFO] [stderr]    Compiling cargo-src v0.1.6 (/opt/crater/workdir)
[INFO] [stderr]    Compiling rustdoc-highlight v0.1.9
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling radix_trie v0.1.4
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr] error[E0531]: cannot find tuple struct/variant `Unknown` in module `token`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.9/src/lib.rs:230:23
[INFO] [stderr]     |
[INFO] [stderr] 230 |         if let token::Unknown(..) = &token.kind {
[INFO] [stderr]     |                       ^^^^^^^ not found in `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0531]: cannot find tuple struct/variant `Unknown` in module `token`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.9/src/lib.rs:239:27
[INFO] [stderr]     |
[INFO] [stderr] 239 |             if let token::Unknown(..) = &token.kind {
[INFO] [stderr]     |                           ^^^^^^^ not found in `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0531]: cannot find tuple struct/variant `Unknown` in module `token`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.9/src/lib.rs:280:40
[INFO] [stderr]     |
[INFO] [stderr] 280 |             token::Whitespace | token::Unknown(..) => Class::None,
[INFO] [stderr]     |                                        ^^^^^^^ not found in `token`
[INFO] [stderr] 
[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-0.1.9/src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(rustc_private)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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-0.1.9/src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling rls-data v0.16.0
[INFO] [stderr]    Compiling rls-vfs v0.4.6
[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-0.1.9/src/lib.rs:59:42
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let lexer = lexer::StringReader::new(&sess, fm, None);
[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-0.1.9/src/lib.rs:99:38
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let lexer = lexer::StringReader::new(&sess, fm, None);
[INFO] [stderr]    |                                      ^^^ function or associated item not found in `syntax::parse::lexer::StringReader<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0624]: method `next_token` is private
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.9/src/lib.rs:229:32
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let token = self.lexer.next_token();
[INFO] [stderr]     |                                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0624]: method `next_token` is private
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.9/src/lib.rs:238:36
[INFO] [stderr]     |
[INFO] [stderr] 238 |             let token = self.lexer.next_token();
[INFO] [stderr]     |                                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599, 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[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rls-vfs-0.4.6/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `rls-vfs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a8f44f05bc61abff940b3d8d8d4d5824e50f80e65f578b42c160a33e9c4d0688"`
[INFO] running `"docker" "rm" "-f" "a8f44f05bc61abff940b3d8d8d4d5824e50f80e65f578b42c160a33e9c4d0688"`
[INFO] [stdout] a8f44f05bc61abff940b3d8d8d4d5824e50f80e65f578b42c160a33e9c4d0688