[INFO] crate new_type_derive 0.2.2 is already in cache
[INFO] extracting crate new_type_derive 0.2.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/new_type_derive/0.2.2
[INFO] extracting crate new_type_derive 0.2.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/new_type_derive/0.2.2
[INFO] validating manifest of new_type_derive-0.2.2 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 new_type_derive-0.2.2 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 new_type_derive-0.2.2
[INFO] finished frobbing new_type_derive-0.2.2
[INFO] frobbed toml for new_type_derive-0.2.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/new_type_derive/0.2.2/Cargo.toml
[INFO] started frobbing new_type_derive-0.2.2
[INFO] finished frobbing new_type_derive-0.2.2
[INFO] frobbed toml for new_type_derive-0.2.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/new_type_derive/0.2.2/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 new_type_derive-0.2.2 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/new_type_derive/0.2.2:/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] 762b547c219731d7f188175d7db2a1a3e6dddbd28b0782ecfbc7beea47db6f07
[INFO] running `"docker" "start" "-a" "762b547c219731d7f188175d7db2a1a3e6dddbd28b0782ecfbc7beea47db6f07"`
[INFO] [stderr]    Compiling new_type_derive v0.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `"docker" "inspect" "762b547c219731d7f188175d7db2a1a3e6dddbd28b0782ecfbc7beea47db6f07"`
[INFO] running `"docker" "rm" "-f" "762b547c219731d7f188175d7db2a1a3e6dddbd28b0782ecfbc7beea47db6f07"`
[INFO] [stdout] 762b547c219731d7f188175d7db2a1a3e6dddbd28b0782ecfbc7beea47db6f07
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/new_type_derive/0.2.2:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 745a25c7032919315f1cdf09174c9d1bbe83858f8a213db02adadf5a64a4de2d
[INFO] running `"docker" "start" "-a" "745a25c7032919315f1cdf09174c9d1bbe83858f8a213db02adadf5a64a4de2d"`
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling proptest v0.8.7
[INFO] [stderr]    Compiling new_type_derive v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::From<&_>`
[INFO] [stderr]    --> src/new_type_pair.rs:473:25
[INFO] [stderr]     |
[INFO] [stderr] 473 |             let inner = String::from(self.as_ref());
[INFO] [stderr]     |                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: required by `std::convert::From::from`
[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 `new_type_derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "745a25c7032919315f1cdf09174c9d1bbe83858f8a213db02adadf5a64a4de2d"`
[INFO] running `"docker" "rm" "-f" "745a25c7032919315f1cdf09174c9d1bbe83858f8a213db02adadf5a64a4de2d"`
[INFO] [stdout] 745a25c7032919315f1cdf09174c9d1bbe83858f8a213db02adadf5a64a4de2d