[INFO] crate phone_number 0.1.0 is already in cache
[INFO] testing phone_number-0.1.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate phone_number 0.1.0 into work/builds/worker-8/source
[INFO] validating manifest of crates.io crate phone_number 0.1.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate phone_number 0.1.0
[INFO] finished tweaking crates.io crate phone_number 0.1.0
[INFO] tweaked toml for crates.io crate phone_number 0.1.0 written to work/builds/worker-8/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 02d0a47b999c0c64a4bb877730a7df3487385f5c5608baccfa8a99e4cf8abbd8
[INFO] running `"docker" "start" "-a" "02d0a47b999c0c64a4bb877730a7df3487385f5c5608baccfa8a99e4cf8abbd8"`
[INFO] [stderr]    Compiling phone_number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(str_escape)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:26:32
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/lib.rs:37:30
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut number: String = Regex::new(r"\D").unwrap().replace_all(number, "").escape_default();
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                              |
[INFO] [stderr]    |                              expected struct `std::string::String`, found struct `std::str::EscapeDefault`
[INFO] [stderr]    |                              help: try using a conversion method: `Regex::new(r"\D").unwrap().replace_all(number, "").escape_default().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::string::String`
[INFO] [stderr]               found type `std::str::EscapeDefault<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/lib.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 |         number = Regex::new(r"^0+").unwrap().replace_all(&number, "").escape_default();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  expected struct `std::string::String`, found struct `std::str::EscapeDefault`
[INFO] [stderr]    |                  help: try using a conversion method: `Regex::new(r"^0+").unwrap().replace_all(&number, "").escape_default().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::string::String`
[INFO] [stderr]               found type `std::str::EscapeDefault<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/lib.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 |         number = Regex::new(r"^8+").unwrap().replace_all(&number, "").escape_default();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  expected struct `std::string::String`, found struct `std::str::EscapeDefault`
[INFO] [stderr]    |                  help: try using a conversion method: `Regex::new(r"^8+").unwrap().replace_all(&number, "").escape_default().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::string::String`
[INFO] [stderr]               found type `std::str::EscapeDefault<'_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `phone_number`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "02d0a47b999c0c64a4bb877730a7df3487385f5c5608baccfa8a99e4cf8abbd8"`
[INFO] running `"docker" "rm" "-f" "02d0a47b999c0c64a4bb877730a7df3487385f5c5608baccfa8a99e4cf8abbd8"`
[INFO] [stdout] 02d0a47b999c0c64a4bb877730a7df3487385f5c5608baccfa8a99e4cf8abbd8