[INFO] cloning repository https://github.com/owtotwo/Simple-Calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/owtotwo/Simple-Calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowtotwo%2FSimple-Calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowtotwo%2FSimple-Calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a39a3ac091f43aa037e186183e00d67359a25ba3
[INFO] checking owtotwo/Simple-Calculator against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowtotwo%2FSimple-Calculator" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/owtotwo/Simple-Calculator on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/owtotwo/Simple-Calculator
[INFO] finished tweaking git repo https://github.com/owtotwo/Simple-Calculator
[INFO] tweaked toml for git repo https://github.com/owtotwo/Simple-Calculator written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/owtotwo/Simple-Calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03258a0fafc20032070e0afc277e1f0982b6721cec30138b8f158b99e96ab92d
[INFO] running `Command { std: "docker" "start" "-a" "03258a0fafc20032070e0afc277e1f0982b6721cec30138b8f158b99e96ab92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03258a0fafc20032070e0afc277e1f0982b6721cec30138b8f158b99e96ab92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03258a0fafc20032070e0afc277e1f0982b6721cec30138b8f158b99e96ab92d", kill_on_drop: false }`
[INFO] [stdout] 03258a0fafc20032070e0afc277e1f0982b6721cec30138b8f158b99e96ab92d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5884ab71a0f127768ca5934ac4b09c0a963359f2a51004f2544030c970e99105
[INFO] running `Command { std: "docker" "start" "-a" "5884ab71a0f127768ca5934ac4b09c0a963359f2a51004f2544030c970e99105", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calculator/mod.rs:18:40
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Result<T> = result::Result<T, Box<error::Error>>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Result<T> = result::Result<T, Box<dyn error::Error>>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calculator/mod.rs:51:32
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calculator/expr/mod.rs:14:45
[INFO] [stdout]    |
[INFO] [stdout] 14 | type Result<T> = std::result::Result<T, Box<std::error::Error>>;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calculator/mod.rs:18:40
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Result<T> = result::Result<T, Box<error::Error>>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Result<T> = result::Result<T, Box<dyn error::Error>>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calculator/mod.rs:51:32
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calculator/expr/mod.rs:14:45
[INFO] [stdout]    |
[INFO] [stdout] 14 | type Result<T> = std::result::Result<T, Box<std::error::Error>>;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/error.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 self.description().fmt(f)
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 | impl_display_for_error!(EvalError);
[INFO] [stdout]    | ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_display_for_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/operator.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         match raw_expr.trim_left() {
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 18 |         match raw_expr.trim_start() {
[INFO] [stdout]    |                        ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/error.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |                   self.description().fmt(f)
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/calculator/expr/operator.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | / new_error_type!(
[INFO] [stdout] 45 | |     ParseOperatorError,
[INFO] [stdout] 46 | |     "expect '+', '-', '*', '/', '(' or ')'"
[INFO] [stdout] 47 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_display_for_error` which comes from the expansion of the macro `new_error_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/term.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut rest_of_expr = raw_term.trim_left();
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut rest_of_expr = raw_term.trim_start();
[INFO] [stdout]    |                                         ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/factor.rs:21:43
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut rest_of_expr = raw_factor.trim_left();
[INFO] [stdout]    |                                           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut rest_of_expr = raw_factor.trim_start();
[INFO] [stdout]    |                                           ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/error.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 self.description().fmt(f)
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 | impl_display_for_error!(EvalError);
[INFO] [stdout]    | ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_display_for_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/operator.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         match raw_expr.trim_left() {
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 18 |         match raw_expr.trim_start() {
[INFO] [stdout]    |                        ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/error.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 self.description().fmt(f)
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/calculator/expr/factor.rs:78:1
[INFO] [stdout]    |
[INFO] [stdout] 78 | new_error_type!(ParseFactorError);
[INFO] [stdout]    | --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_display_for_error` which comes from the expansion of the macro `new_error_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/integer.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut rest_of_expr = raw_int.trim_left();
[INFO] [stdout]    |                                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut rest_of_expr = raw_int.trim_start();
[INFO] [stdout]    |                                        ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/error.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |                   self.description().fmt(f)
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/calculator/expr/operator.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | / new_error_type!(
[INFO] [stdout] 45 | |     ParseOperatorError,
[INFO] [stdout] 46 | |     "expect '+', '-', '*', '/', '(' or ')'"
[INFO] [stdout] 47 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_display_for_error` which comes from the expansion of the macro `new_error_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/term.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut rest_of_expr = raw_term.trim_left();
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut rest_of_expr = raw_term.trim_start();
[INFO] [stdout]    |                                         ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/integer.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 97 |         self.description().fmt(f)
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/factor.rs:21:43
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut rest_of_expr = raw_factor.trim_left();
[INFO] [stdout]    |                                           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut rest_of_expr = raw_factor.trim_start();
[INFO] [stdout]    |                                           ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/error.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 self.description().fmt(f)
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/calculator/expr/factor.rs:78:1
[INFO] [stdout]    |
[INFO] [stdout] 78 | new_error_type!(ParseFactorError);
[INFO] [stdout]    | --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_display_for_error` which comes from the expansion of the macro `new_error_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/integer.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut rest_of_expr = raw_int.trim_left();
[INFO] [stdout]    |                                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut rest_of_expr = raw_int.trim_start();
[INFO] [stdout]    |                                        ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/mod.rs:33:41
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut rest_of_expr = raw_expr.trim_left();
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut rest_of_expr = raw_expr.trim_start();
[INFO] [stdout]    |                                         ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/expr/integer.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 97 |         self.description().fmt(f)
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:46:50
[INFO] [stdout]    |
[INFO] [stdout] 46 |             CalculatorError::IOError(ref e) => e.description(),
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:75:35
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     self.disp(why.description(), true);
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:90:35
[INFO] [stdout]    |
[INFO] [stdout] 90 |                     self.disp(why.description(), true);
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:99:35
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     self.disp(why.description(), true);
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/calculator/mod.rs:128:27
[INFO] [stdout]     |
[INFO] [stdout] 128 |             if dirty_expr.trim_right().len() == 0 {
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 128 |             if dirty_expr.trim_end().len() == 0 {
[INFO] [stdout]     |                           ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/calculator/expr/mod.rs:33:41
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut rest_of_expr = raw_expr.trim_left();
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut rest_of_expr = raw_expr.trim_start();
[INFO] [stdout]    |                                         ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:46:50
[INFO] [stdout]    |
[INFO] [stdout] 46 |             CalculatorError::IOError(ref e) => e.description(),
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:75:35
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     self.disp(why.description(), true);
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:90:35
[INFO] [stdout]    |
[INFO] [stdout] 90 |                     self.disp(why.description(), true);
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/calculator/mod.rs:99:35
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     self.disp(why.description(), true);
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/calculator/mod.rs:128:27
[INFO] [stdout]     |
[INFO] [stdout] 128 |             if dirty_expr.trim_right().len() == 0 {
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 128 |             if dirty_expr.trim_end().len() == 0 {
[INFO] [stdout]     |                           ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "5884ab71a0f127768ca5934ac4b09c0a963359f2a51004f2544030c970e99105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5884ab71a0f127768ca5934ac4b09c0a963359f2a51004f2544030c970e99105", kill_on_drop: false }`
[INFO] [stdout] 5884ab71a0f127768ca5934ac4b09c0a963359f2a51004f2544030c970e99105