[INFO] crate rustyq 0.6.0 is already in cache
[INFO] testing rustyq-0.6.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate rustyq 0.6.0 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate rustyq 0.6.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rustyq 0.6.0
[INFO] finished tweaking crates.io crate rustyq 0.6.0
[INFO] tweaked toml for crates.io crate rustyq 0.6.0 written to work/builds/worker-5/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 9cf156b052469d714161f4e3ebddc589d2587a00d2ceec6bbaf68ac09d1065cf
[INFO] running `"docker" "start" "-a" "9cf156b052469d714161f4e3ebddc589d2587a00d2ceec6bbaf68ac09d1065cf"`
[INFO] [stderr]    Compiling zmtp v0.6.0
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::borrow::Cow<'_, str>: std::borrow::Borrow<_>`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/zmtp-0.6.0/src/reader.rs:152:35
[INFO] [stderr]     |
[INFO] [stderr] 152 |             cmd.add_metadata(name.borrow(), val_bytes);
[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 E0283`.
[INFO] [stderr] error: could not compile `zmtp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9cf156b052469d714161f4e3ebddc589d2587a00d2ceec6bbaf68ac09d1065cf"`
[INFO] running `"docker" "rm" "-f" "9cf156b052469d714161f4e3ebddc589d2587a00d2ceec6bbaf68ac09d1065cf"`
[INFO] [stdout] 9cf156b052469d714161f4e3ebddc589d2587a00d2ceec6bbaf68ac09d1065cf