[INFO] updating cached repository cesare/rust-msgpack-converter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cesare/rust-msgpack-converter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-msgpack-converter" "work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-msgpack-converter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-msgpack-converter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-msgpack-converter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cesare/rust-msgpack-converter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cesare/rust-msgpack-converter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d7405907e07d9f1a8bd1ec946698674f28c3189
[INFO] sha for GitHub repo cesare/rust-msgpack-converter: 1d7405907e07d9f1a8bd1ec946698674f28c3189
[INFO] validating manifest of cesare/rust-msgpack-converter 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 cesare/rust-msgpack-converter 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 cesare/rust-msgpack-converter
[INFO] finished frobbing cesare/rust-msgpack-converter
[INFO] frobbed toml for cesare/rust-msgpack-converter written to work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-msgpack-converter/Cargo.toml
[INFO] started frobbing cesare/rust-msgpack-converter
[INFO] finished frobbing cesare/rust-msgpack-converter
[INFO] frobbed toml for cesare/rust-msgpack-converter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cesare/rust-msgpack-converter/Cargo.toml
[INFO] crate cesare/rust-msgpack-converter already has a lockfile, it will not be regenerated
[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 cesare/rust-msgpack-converter 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-msgpack-converter:/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] bbbd186a1f777f3042ada0945e6d28296a7cbd82ca1fb13f60be8eb6a55c9682
[INFO] running `"docker" "start" "-a" "bbbd186a1f777f3042ada0945e6d28296a7cbd82ca1fb13f60be8eb6a55c9682"`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling serde v1.0.4
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling rmp v0.8.6
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling rmp-serde v0.13.1
[INFO] [stderr] error: type `decode::SliceReader<'a>` is private
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rmp-serde-0.13.1/src/lib.rs:285:18
[INFO] [stderr]     |
[INFO] [stderr] 285 |     let mut de = Deserializer::from_slice(input);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `decode::SliceReader<'a>` is private
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rmp-serde-0.13.1/src/lib.rs:286:5
[INFO] [stderr]     |
[INFO] [stderr] 286 |     serde::Deserialize::deserialize(&mut de)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `decode::SliceReader<'a>` is private
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rmp-serde-0.13.1/src/lib.rs:286:37
[INFO] [stderr]     |
[INFO] [stderr] 286 |     serde::Deserialize::deserialize(&mut de)
[INFO] [stderr]     |                                     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rmp-serde`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "bbbd186a1f777f3042ada0945e6d28296a7cbd82ca1fb13f60be8eb6a55c9682"`
[INFO] running `"docker" "rm" "-f" "bbbd186a1f777f3042ada0945e6d28296a7cbd82ca1fb13f60be8eb6a55c9682"`
[INFO] [stdout] bbbd186a1f777f3042ada0945e6d28296a7cbd82ca1fb13f60be8eb6a55c9682