[INFO] crate build_epoch 0.1.0 is already in cache
[INFO] extracting crate build_epoch 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/build_epoch/0.1.0
[INFO] extracting crate build_epoch 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/build_epoch/0.1.0
[INFO] validating manifest of build_epoch-0.1.0 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 build_epoch-0.1.0 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 build_epoch-0.1.0
[INFO] finished frobbing build_epoch-0.1.0
[INFO] frobbed toml for build_epoch-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/build_epoch/0.1.0/Cargo.toml
[INFO] started frobbing build_epoch-0.1.0
[INFO] finished frobbing build_epoch-0.1.0
[INFO] frobbed toml for build_epoch-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/build_epoch/0.1.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing build_epoch-0.1.0 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/build_epoch/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8d0ae69f1ab95c5ad1f71755469076cc220d1a5c2be6d5dbf3eb0b4bf788aacf
[INFO] running `"docker" "start" "-a" "8d0ae69f1ab95c5ad1f71755469076cc220d1a5c2be6d5dbf3eb0b4bf788aacf"`
[INFO] [stderr]    Compiling build_epoch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `syntax::codemap`
[INFO] [stderr]   --> src/lib.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 | use syntax::codemap::Span;
[INFO] [stderr]    |             ^^^^^^^ could not find `codemap` in `syntax`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(plugin_registrar, rustc_private)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:30:79
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn build_epoch<'a>(cx: &'a mut ExtCtxt, span: Span, tts: &[TokenTree]) -> Box<MacResult + 'a> {
[INFO] [stderr]    |                                                                               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn MacResult + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/lib.rs:36:28
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let lit = LitKind::Int(*EPOCH as u64, LitIntType::Unsigned(UintTy::U64));
[INFO] [stderr]    |                            ^^^^^^^^^^^^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            expected u128, found u64
[INFO] [stderr]    |                            help: you can convert an `u64` to `u128`: `(*EPOCH as u64).into()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `build_epoch`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8d0ae69f1ab95c5ad1f71755469076cc220d1a5c2be6d5dbf3eb0b4bf788aacf"`
[INFO] running `"docker" "rm" "-f" "8d0ae69f1ab95c5ad1f71755469076cc220d1a5c2be6d5dbf3eb0b4bf788aacf"`
[INFO] [stdout] 8d0ae69f1ab95c5ad1f71755469076cc220d1a5c2be6d5dbf3eb0b4bf788aacf