[INFO] updating cached repository neoeinstein/new_type_derive
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/neoeinstein/new_type_derive
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/neoeinstein/new_type_derive" "work/ex/beta-1.38-1/sources/1.37.0/gh/neoeinstein/new_type_derive"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/neoeinstein/new_type_derive'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/neoeinstein/new_type_derive" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/neoeinstein/new_type_derive"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/neoeinstein/new_type_derive'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e5ea2e86cfe77ac3bd0f817522cdc165ca4fed5
[INFO] sha for GitHub repo neoeinstein/new_type_derive: 5e5ea2e86cfe77ac3bd0f817522cdc165ca4fed5
[INFO] validating manifest of neoeinstein/new_type_derive 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 neoeinstein/new_type_derive 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 neoeinstein/new_type_derive
[INFO] finished frobbing neoeinstein/new_type_derive
[INFO] frobbed toml for neoeinstein/new_type_derive written to work/ex/beta-1.38-1/sources/1.37.0/gh/neoeinstein/new_type_derive/Cargo.toml
[INFO] started frobbing neoeinstein/new_type_derive
[INFO] finished frobbing neoeinstein/new_type_derive
[INFO] frobbed toml for neoeinstein/new_type_derive written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/neoeinstein/new_type_derive/Cargo.toml
[INFO] crate neoeinstein/new_type_derive 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing neoeinstein/new_type_derive 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/neoeinstein/new_type_derive:/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] 156a3515e5fb38b75bb4a529e75619f7523d4c075fa46d41a82108b6c41aa96d
[INFO] running `"docker" "start" "-a" "156a3515e5fb38b75bb4a529e75619f7523d4c075fa46d41a82108b6c41aa96d"`
[INFO] [stderr]    Compiling new_type_derive v0.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "156a3515e5fb38b75bb4a529e75619f7523d4c075fa46d41a82108b6c41aa96d"`
[INFO] running `"docker" "rm" "-f" "156a3515e5fb38b75bb4a529e75619f7523d4c075fa46d41a82108b6c41aa96d"`
[INFO] [stdout] 156a3515e5fb38b75bb4a529e75619f7523d4c075fa46d41a82108b6c41aa96d
[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/neoeinstein/new_type_derive:/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] 7d1d53d6f5af025e4568f76e9d0975ae03e0028af2a4859da4492470313fa75b
[INFO] running `"docker" "start" "-a" "7d1d53d6f5af025e4568f76e9d0975ae03e0028af2a4859da4492470313fa75b"`
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]    Compiling wait-timeout v0.1.5
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling tempfile v3.0.3
[INFO] [stderr]    Compiling rusty-fork v0.2.0
[INFO] [stderr]    Compiling proptest v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.70
[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] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7d1d53d6f5af025e4568f76e9d0975ae03e0028af2a4859da4492470313fa75b"`
[INFO] running `"docker" "rm" "-f" "7d1d53d6f5af025e4568f76e9d0975ae03e0028af2a4859da4492470313fa75b"`
[INFO] [stdout] 7d1d53d6f5af025e4568f76e9d0975ae03e0028af2a4859da4492470313fa75b