[INFO] crate heap 0.1.0 is already in cache
[INFO] extracting crate heap 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/heap/0.1.0
[INFO] extracting crate heap 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/heap/0.1.0
[INFO] validating manifest of heap-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 heap-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 heap-0.1.0
[INFO] finished frobbing heap-0.1.0
[INFO] frobbed toml for heap-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/heap/0.1.0/Cargo.toml
[INFO] started frobbing heap-0.1.0
[INFO] finished frobbing heap-0.1.0
[INFO] frobbed toml for heap-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/heap/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 heap-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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/heap/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] 5fd7a7d3f2da0a8a663c776a4fd630225b8843a28f068dd134611c1698f7746c
[INFO] running `"docker" "start" "-a" "5fd7a7d3f2da0a8a663c776a4fd630225b8843a28f068dd134611c1698f7746c"`
[INFO] [stderr]    Compiling heap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `"docker" "inspect" "5fd7a7d3f2da0a8a663c776a4fd630225b8843a28f068dd134611c1698f7746c"`
[INFO] running `"docker" "rm" "-f" "5fd7a7d3f2da0a8a663c776a4fd630225b8843a28f068dd134611c1698f7746c"`
[INFO] [stdout] 5fd7a7d3f2da0a8a663c776a4fd630225b8843a28f068dd134611c1698f7746c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/heap/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4e1c3dd62215be1b278f2e1461258880840c6f4607b9fb13180f70c5d30c1e3d
[INFO] running `"docker" "start" "-a" "4e1c3dd62215be1b278f2e1461258880840c6f4607b9fb13180f70c5d30c1e3d"`
[INFO] [stderr]    Compiling quickcheck_macros v0.4.2
[INFO] [stderr] error[E0432]: unresolved import `syntax::codemap`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/quickcheck_macros-0.4.2/src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use syntax::codemap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^ no `codemap` in the root
[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/quickcheck_macros-0.4.2/src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![feature(plugin_registrar, rustc_private)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0023]: this pattern has 6 fields, but the corresponding tuple variant has 4 fields
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/quickcheck_macros-0.4.2/src/lib.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         ItemKind::Fn(ref decl, unsafety, _constness, abi, _, _) => {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 4 fields, found 6
[INFO] [stderr] 
[INFO] [stderr] error[E0560]: struct `syntax::ast::BareFnTy` has no field named `lifetimes`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/quickcheck_macros-0.4.2/src/lib.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 lifetimes: vec![],
[INFO] [stderr]    |                 ^^^^^^^^^ `syntax::ast::BareFnTy` does not have this field
[INFO] [stderr]    |
[INFO] [stderr]    = note: available fields are: `unsafety`, `abi`, `generic_params`, `decl`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0023, E0432, E0554, E0560.
[INFO] [stderr] For more information about an error, try `rustc --explain E0023`.
[INFO] [stderr] error: Could not compile `quickcheck_macros`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4e1c3dd62215be1b278f2e1461258880840c6f4607b9fb13180f70c5d30c1e3d"`
[INFO] running `"docker" "rm" "-f" "4e1c3dd62215be1b278f2e1461258880840c6f4607b9fb13180f70c5d30c1e3d"`
[INFO] [stdout] 4e1c3dd62215be1b278f2e1461258880840c6f4607b9fb13180f70c5d30c1e3d