[INFO] updating cached repository cesare/rust-msgpack-experiments
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cesare/rust-msgpack-experiments
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-msgpack-experiments" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/cesare/rust-msgpack-experiments"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/cesare/rust-msgpack-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-msgpack-experiments" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/cesare/rust-msgpack-experiments"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/cesare/rust-msgpack-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f055a936d122a532eff862b2724c54bd5714c95
[INFO] sha for GitHub repo cesare/rust-msgpack-experiments: 0f055a936d122a532eff862b2724c54bd5714c95
[INFO] validating manifest of cesare/rust-msgpack-experiments on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cesare/rust-msgpack-experiments on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cesare/rust-msgpack-experiments
[INFO] finished frobbing cesare/rust-msgpack-experiments
[INFO] frobbed toml for cesare/rust-msgpack-experiments written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/cesare/rust-msgpack-experiments/Cargo.toml
[INFO] started frobbing cesare/rust-msgpack-experiments
[INFO] finished frobbing cesare/rust-msgpack-experiments
[INFO] frobbed toml for cesare/rust-msgpack-experiments written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/cesare/rust-msgpack-experiments/Cargo.toml
[INFO] crate cesare/rust-msgpack-experiments already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cesare/rust-msgpack-experiments against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/cesare/rust-msgpack-experiments:/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 10e2677db062f263d62a715fccc74a5a86b4bcf733c53cb8cde7bf83633e6a72
[INFO] running `"docker" "start" "-a" "10e2677db062f263d62a715fccc74a5a86b4bcf733c53cb8cde7bf83633e6a72"`
[INFO] [stderr]     Checking serde v1.0.4
[INFO] [stderr]     Checking rmp v0.8.6
[INFO] [stderr]    Compiling serde_derive_internals v0.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.4
[INFO] [stderr]     Checking 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] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "10e2677db062f263d62a715fccc74a5a86b4bcf733c53cb8cde7bf83633e6a72"`
[INFO] running `"docker" "rm" "-f" "10e2677db062f263d62a715fccc74a5a86b4bcf733c53cb8cde7bf83633e6a72"`
[INFO] [stdout] 10e2677db062f263d62a715fccc74a5a86b4bcf733c53cb8cde7bf83633e6a72