[INFO] crate serde_yaml_incomplete 0.0.0 is already in cache
[INFO] extracting crate serde_yaml_incomplete 0.0.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/serde_yaml_incomplete/0.0.0
[INFO] extracting crate serde_yaml_incomplete 0.0.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/serde_yaml_incomplete/0.0.0
[INFO] validating manifest of serde_yaml_incomplete-0.0.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of serde_yaml_incomplete-0.0.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing serde_yaml_incomplete-0.0.0
[INFO] finished frobbing serde_yaml_incomplete-0.0.0
[INFO] frobbed toml for serde_yaml_incomplete-0.0.0 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/serde_yaml_incomplete/0.0.0/Cargo.toml
[INFO] started frobbing serde_yaml_incomplete-0.0.0
[INFO] finished frobbing serde_yaml_incomplete-0.0.0
[INFO] frobbed toml for serde_yaml_incomplete-0.0.0 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/serde_yaml_incomplete/0.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking serde_yaml_incomplete-0.0.0 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-6/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/serde_yaml_incomplete/0.0.0:/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=forbid" "-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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3067b81b6dea431777a617d82ad9b4936331b63f71f85deb04d33fa4ab45f2bb
[INFO] running `"docker" "start" "-a" "3067b81b6dea431777a617d82ad9b4936331b63f71f85deb04d33fa4ab45f2bb"`
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling term v0.2.14
[INFO] [stderr]    Compiling aster v0.41.0
[INFO] [stderr]    Compiling syntex v0.58.1
[INFO] [stderr]    Compiling quasi v0.32.0
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling quasi_codegen v0.32.0
[INFO] [stderr]    Compiling syntex_syntax v0.29.3
[INFO] [stderr]    Compiling serde_codegen v0.4.3
[INFO] [stderr] error[E0603]: function `register` is private
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_codegen-0.4.3/build.rs:12:24
[INFO] [stderr]    |
[INFO] [stderr] 12 |         quasi_codegen::register(&mut registry);
[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 E0603`.
[INFO] [stderr] error: Could not compile `serde_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning[E0502]: cannot borrow `cx.parse_sess.span_diagnostic` as immutable because it is also borrowed as mutable
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.29.3/src/ext/expand.rs:1325:25
[INFO] [stderr]      |
[INFO] [stderr] 1315 |         let mut expander = MacroExpander::new(&mut cx);
[INFO] [stderr]      |                                               ------- mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1325 |         let err_count = cx.parse_sess.span_diagnostic.err_count();
[INFO] [stderr]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stderr] 1326 |         let mut ret = expander.fold_crate(c);
[INFO] [stderr]      |                       -------- mutable borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3067b81b6dea431777a617d82ad9b4936331b63f71f85deb04d33fa4ab45f2bb"`
[INFO] running `"docker" "rm" "-f" "3067b81b6dea431777a617d82ad9b4936331b63f71f85deb04d33fa4ab45f2bb"`
[INFO] [stdout] 3067b81b6dea431777a617d82ad9b4936331b63f71f85deb04d33fa4ab45f2bb