[INFO] fetching crate phone_number 0.1.0...
[INFO] testing phone_number-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate phone_number 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate phone_number 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7a01c764d32a70131eba54967e42078b62459d5050d7e737abf87dba3c1eb370
[INFO] running `Command { std: "docker" "start" "-a" "7a01c764d32a70131eba54967e42078b62459d5050d7e737abf87dba3c1eb370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a01c764d32a70131eba54967e42078b62459d5050d7e737abf87dba3c1eb370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a01c764d32a70131eba54967e42078b62459d5050d7e737abf87dba3c1eb370", kill_on_drop: false }`
[INFO] [stdout] 7a01c764d32a70131eba54967e42078b62459d5050d7e737abf87dba3c1eb370
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35e92a262a70e98736f3f87ee0dcb3c2e3007ff16023e2889583232aa34f0563
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "35e92a262a70e98736f3f87ee0dcb3c2e3007ff16023e2889583232aa34f0563", kill_on_drop: false }`
[INFO] [stderr]    Compiling phone_number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_escape)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut iso3166 = try!(get_iso3166_by_country(&country).ok_or(NotValidPhoneNumberError));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:50:19
[INFO] [stdout]    |
[INFO] [stdout] 50 |         iso3166 = try!(get_iso3166_by_number(&number).ok_or(NotValidPhoneNumberError));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut number: String = Regex::new(r"\D").unwrap().replace_all(number, "").escape_default();
[INFO] [stdout]    |                     ------   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |        |
[INFO] [stdout]    |                     |        expected struct `String`, found struct `std::str::EscapeDefault`
[INFO] [stdout]    |                     |        help: try using a conversion method: `Regex::new(r"\D").unwrap().replace_all(number, "").escape_default().to_string()`
[INFO] [stdout]    |                     expected due to this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |         number = Regex::new(r"^0+").unwrap().replace_all(&number, "").escape_default();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  expected struct `String`, found struct `std::str::EscapeDefault`
[INFO] [stdout]    |                  help: try using a conversion method: `Regex::new(r"^0+").unwrap().replace_all(&number, "").escape_default().to_string()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 |         number = Regex::new(r"^8+").unwrap().replace_all(&number, "").escape_default();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  expected struct `String`, found struct `std::str::EscapeDefault`
[INFO] [stdout]    |                  help: try using a conversion method: `Regex::new(r"^8+").unwrap().replace_all(&number, "").escape_default().to_string()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `phone_number`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "35e92a262a70e98736f3f87ee0dcb3c2e3007ff16023e2889583232aa34f0563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35e92a262a70e98736f3f87ee0dcb3c2e3007ff16023e2889583232aa34f0563", kill_on_drop: false }`
[INFO] [stdout] 35e92a262a70e98736f3f87ee0dcb3c2e3007ff16023e2889583232aa34f0563
