Dec 19 18:37:52.774 INFO checking csreid/nqueens-rs against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 18:37:52.774 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/csreid/nqueens-rs:/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=forbid" "-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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:37:53.170 INFO [stdout] 25ccd1dbd19465896749e3baf4a116784b5d707ff7f702a212c62e1d44b2aef5
Dec 19 18:37:53.172 INFO running `"docker" "start" "-a" "25ccd1dbd19465896749e3baf4a116784b5d707ff7f702a212c62e1d44b2aef5"`
Dec 19 18:37:55.910 INFO [stderr]     Checking stopwatch v0.0.7
Dec 19 18:37:56.428 INFO [stderr]     Checking nqueens-rs v0.1.0 (/opt/crater/workdir)
Dec 19 18:37:56.850 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:56.850 INFO [stderr]    --> src/main.rs:118:12
Dec 19 18:37:56.850 INFO [stderr]     |
Dec 19 18:37:56.850 INFO [stderr] 118 |         for i in (0..=N) {
Dec 19 18:37:56.850 INFO [stderr]     |                  ^^^^^^^ help: remove these parentheses
Dec 19 18:37:56.850 INFO [stderr]     |
Dec 19 18:37:56.850 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 19 18:37:56.850 INFO [stderr] 
Dec 19 18:37:56.850 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:56.850 INFO [stderr]    --> src/main.rs:119:13
Dec 19 18:37:56.850 INFO [stderr]     |
Dec 19 18:37:56.850 INFO [stderr] 119 |             for j in (0..=N) {
Dec 19 18:37:56.850 INFO [stderr]     |                      ^^^^^^^ help: remove these parentheses
Dec 19 18:37:56.850 INFO [stderr] 
Dec 19 18:37:56.850 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:56.850 INFO [stderr]    --> src/main.rs:182:12
Dec 19 18:37:56.850 INFO [stderr]     |
Dec 19 18:37:56.850 INFO [stderr] 182 |         for i in (0..N) {
Dec 19 18:37:56.850 INFO [stderr]     |                  ^^^^^^ help: remove these parentheses
Dec 19 18:37:56.850 INFO [stderr] 
Dec 19 18:37:56.850 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:56.850 INFO [stderr]    --> src/main.rs:183:13
Dec 19 18:37:56.850 INFO [stderr]     |
Dec 19 18:37:56.850 INFO [stderr] 183 |             for j in (0..N) {
Dec 19 18:37:56.850 INFO [stderr]     |                      ^^^^^^ help: remove these parentheses
Dec 19 18:37:56.850 INFO [stderr] 
Dec 19 18:37:56.850 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 19 18:37:56.850 INFO [stderr]    --> src/main.rs:245:13
Dec 19 18:37:56.850 INFO [stderr]     |
Dec 19 18:37:56.850 INFO [stderr] 245 |     let time = (sw.elapsed_ms() as f64);
Dec 19 18:37:56.850 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 18:37:56.850 INFO [stderr] 
Dec 19 18:37:57.034 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:57.034 INFO [stderr]    --> src/main.rs:118:12
Dec 19 18:37:57.034 INFO [stderr]     |
Dec 19 18:37:57.035 INFO [stderr] 118 |         for i in (0..=N) {
Dec 19 18:37:57.035 INFO [stderr]     |                  ^^^^^^^ help: remove these parentheses
Dec 19 18:37:57.035 INFO [stderr]     |
Dec 19 18:37:57.035 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 19 18:37:57.035 INFO [stderr] 
Dec 19 18:37:57.035 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:57.035 INFO [stderr]    --> src/main.rs:119:13
Dec 19 18:37:57.035 INFO [stderr]     |
Dec 19 18:37:57.035 INFO [stderr] 119 |             for j in (0..=N) {
Dec 19 18:37:57.035 INFO [stderr]     |                      ^^^^^^^ help: remove these parentheses
Dec 19 18:37:57.035 INFO [stderr] 
Dec 19 18:37:57.035 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:57.035 INFO [stderr]    --> src/main.rs:182:12
Dec 19 18:37:57.035 INFO [stderr]     |
Dec 19 18:37:57.035 INFO [stderr] 182 |         for i in (0..N) {
Dec 19 18:37:57.035 INFO [stderr]     |                  ^^^^^^ help: remove these parentheses
Dec 19 18:37:57.035 INFO [stderr] 
Dec 19 18:37:57.035 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 18:37:57.035 INFO [stderr]    --> src/main.rs:183:13
Dec 19 18:37:57.035 INFO [stderr]     |
Dec 19 18:37:57.035 INFO [stderr] 183 |             for j in (0..N) {
Dec 19 18:37:57.035 INFO [stderr]     |                      ^^^^^^ help: remove these parentheses
Dec 19 18:37:57.040 INFO [stderr] 
Dec 19 18:37:57.040 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 19 18:37:57.040 INFO [stderr]    --> src/main.rs:245:13
Dec 19 18:37:57.040 INFO [stderr]     |
Dec 19 18:37:57.040 INFO [stderr] 245 |     let time = (sw.elapsed_ms() as f64);
Dec 19 18:37:57.040 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 18:37:57.040 INFO [stderr] 
Dec 19 18:37:57.073 INFO [stderr] warning: unused variable: `i`
Dec 19 18:37:57.073 INFO [stderr]    --> src/main.rs:118:7
Dec 19 18:37:57.073 INFO [stderr]     |
Dec 19 18:37:57.074 INFO [stderr] 118 |         for i in (0..=N) {
Dec 19 18:37:57.074 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 19 18:37:57.074 INFO [stderr]     |
Dec 19 18:37:57.074 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 18:37:57.074 INFO [stderr] 
Dec 19 18:37:57.074 INFO [stderr] warning: unused variable: `children`
Dec 19 18:37:57.074 INFO [stderr]    --> src/main.rs:219:7
Dec 19 18:37:57.074 INFO [stderr]     |
Dec 19 18:37:57.074 INFO [stderr] 219 |         let children = self.children();
Dec 19 18:37:57.074 INFO [stderr]     |             ^^^^^^^^ help: consider using `_children` instead
Dec 19 18:37:57.074 INFO [stderr] 
Dec 19 18:37:57.124 INFO [stderr] warning: method is never used: `n_queens_bestfs`
Dec 19 18:37:57.124 INFO [stderr]    --> src/main.rs:193:2
Dec 19 18:37:57.124 INFO [stderr]     |
Dec 19 18:37:57.124 INFO [stderr] 193 |     fn n_queens_bestfs(&self, n:i32) -> (Board, i32) {
Dec 19 18:37:57.124 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.124 INFO [stderr]     |
Dec 19 18:37:57.124 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 18:37:57.124 INFO [stderr] 
Dec 19 18:37:57.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.124 INFO [stderr]   --> src/main.rs:78:4
Dec 19 18:37:57.124 INFO [stderr]    |
Dec 19 18:37:57.124 INFO [stderr] 78 |             write!(f, "+---");
Dec 19 18:37:57.124 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.124 INFO [stderr]    |
Dec 19 18:37:57.124 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 18:37:57.124 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.124 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.124 INFO [stderr] 
Dec 19 18:37:57.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.124 INFO [stderr]   --> src/main.rs:81:3
Dec 19 18:37:57.124 INFO [stderr]    |
Dec 19 18:37:57.124 INFO [stderr] 81 |         write!(f, "+\n");
Dec 19 18:37:57.124 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.124 INFO [stderr]    |
Dec 19 18:37:57.124 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.124 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.124 INFO [stderr] 
Dec 19 18:37:57.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.124 INFO [stderr]   --> src/main.rs:86:6
Dec 19 18:37:57.124 INFO [stderr]    |
Dec 19 18:37:57.124 INFO [stderr] 86 |                     write!(f, "| Q ");
Dec 19 18:37:57.124 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.140 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.140 INFO [stderr] 
Dec 19 18:37:57.140 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.140 INFO [stderr]   --> src/main.rs:88:6
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr] 88 |                     write!(f, "|   ");
Dec 19 18:37:57.140 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.140 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.140 INFO [stderr] 
Dec 19 18:37:57.140 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.140 INFO [stderr]   --> src/main.rs:92:4
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr] 92 |             write!(f, "|\n");
Dec 19 18:37:57.140 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.140 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.140 INFO [stderr] 
Dec 19 18:37:57.140 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.140 INFO [stderr]   --> src/main.rs:95:5
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr] 95 |                 write!(f, "+---");
Dec 19 18:37:57.140 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.140 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.140 INFO [stderr] 
Dec 19 18:37:57.140 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.140 INFO [stderr]   --> src/main.rs:97:4
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr] 97 |             write!(f, "+\n");
Dec 19 18:37:57.140 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.140 INFO [stderr]    |
Dec 19 18:37:57.140 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.140 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.140 INFO [stderr] 
Dec 19 18:37:57.140 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time`
Dec 19 18:37:57.140 INFO [stderr]    --> src/main.rs:220:7
Dec 19 18:37:57.140 INFO [stderr]     |
Dec 19 18:37:57.140 INFO [stderr] 220 |         let startTime = Stopwatch::start_new();
Dec 19 18:37:57.140 INFO [stderr]     |             ^^^^^^^^^
Dec 19 18:37:57.140 INFO [stderr]     |
Dec 19 18:37:57.140 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 19 18:37:57.140 INFO [stderr] 
Dec 19 18:37:57.288 INFO [stderr] warning: unused variable: `i`
Dec 19 18:37:57.288 INFO [stderr]    --> src/main.rs:118:7
Dec 19 18:37:57.288 INFO [stderr]     |
Dec 19 18:37:57.288 INFO [stderr] 118 |         for i in (0..=N) {
Dec 19 18:37:57.288 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 19 18:37:57.288 INFO [stderr]     |
Dec 19 18:37:57.288 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 18:37:57.288 INFO [stderr] 
Dec 19 18:37:57.288 INFO [stderr] warning: unused variable: `children`
Dec 19 18:37:57.288 INFO [stderr]    --> src/main.rs:219:7
Dec 19 18:37:57.288 INFO [stderr]     |
Dec 19 18:37:57.288 INFO [stderr] 219 |         let children = self.children();
Dec 19 18:37:57.288 INFO [stderr]     |             ^^^^^^^^ help: consider using `_children` instead
Dec 19 18:37:57.288 INFO [stderr] 
Dec 19 18:37:57.311 INFO [stderr] warning: method is never used: `n_queens_bestfs`
Dec 19 18:37:57.311 INFO [stderr]    --> src/main.rs:193:2
Dec 19 18:37:57.311 INFO [stderr]     |
Dec 19 18:37:57.311 INFO [stderr] 193 |     fn n_queens_bestfs(&self, n:i32) -> (Board, i32) {
Dec 19 18:37:57.311 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.311 INFO [stderr]     |
Dec 19 18:37:57.311 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 18:37:57.311 INFO [stderr] 
Dec 19 18:37:57.311 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.311 INFO [stderr]   --> src/main.rs:78:4
Dec 19 18:37:57.311 INFO [stderr]    |
Dec 19 18:37:57.311 INFO [stderr] 78 |             write!(f, "+---");
Dec 19 18:37:57.311 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 18:37:57.312 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.312 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.312 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.312 INFO [stderr]   --> src/main.rs:81:3
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr] 81 |         write!(f, "+\n");
Dec 19 18:37:57.312 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.312 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.312 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.312 INFO [stderr]   --> src/main.rs:86:6
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr] 86 |                     write!(f, "| Q ");
Dec 19 18:37:57.312 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.312 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.312 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.312 INFO [stderr]   --> src/main.rs:88:6
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr] 88 |                     write!(f, "|   ");
Dec 19 18:37:57.312 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.312 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.312 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.312 INFO [stderr]   --> src/main.rs:92:4
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr] 92 |             write!(f, "|\n");
Dec 19 18:37:57.312 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.312 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.312 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.312 INFO [stderr]   --> src/main.rs:95:5
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr] 95 |                 write!(f, "+---");
Dec 19 18:37:57.312 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.312 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.312 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:37:57.312 INFO [stderr]   --> src/main.rs:97:4
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr] 97 |             write!(f, "+\n");
Dec 19 18:37:57.312 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]    |
Dec 19 18:37:57.312 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:37:57.312 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.312 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time`
Dec 19 18:37:57.312 INFO [stderr]    --> src/main.rs:220:7
Dec 19 18:37:57.312 INFO [stderr]     |
Dec 19 18:37:57.312 INFO [stderr] 220 |         let startTime = Stopwatch::start_new();
Dec 19 18:37:57.312 INFO [stderr]     |             ^^^^^^^^^
Dec 19 18:37:57.312 INFO [stderr]     |
Dec 19 18:37:57.312 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 19 18:37:57.312 INFO [stderr] 
Dec 19 18:37:57.352 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
Dec 19 18:37:58.256 INFO running `"docker" "inspect" "25ccd1dbd19465896749e3baf4a116784b5d707ff7f702a212c62e1d44b2aef5"`
Dec 19 18:37:58.600 INFO running `"docker" "rm" "-f" "25ccd1dbd19465896749e3baf4a116784b5d707ff7f702a212c62e1d44b2aef5"`
Dec 19 18:37:58.923 INFO [stdout] 25ccd1dbd19465896749e3baf4a116784b5d707ff7f702a212c62e1d44b2aef5