Dec 05 15:11:09.289 INFO checking comacro-0.0.1 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 15:11:09.289 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 15:11:09.843 INFO [stdout] e098d7a3fafbc690a76af8023536f69cfe3bab61d301829a9731f2036a9b0933
Dec 05 15:11:09.848 INFO running `"docker" "start" "-a" "e098d7a3fafbc690a76af8023536f69cfe3bab61d301829a9731f2036a9b0933"`
Dec 05 15:11:11.970 INFO [stderr] usermod: no changes
Dec 05 15:11:12.099 INFO [stderr]     Checking log v0.4.6
Dec 05 15:11:12.107 INFO [stderr]     Checking syn v0.15.22
Dec 05 15:11:13.515 INFO [stderr]     Checking env_logger v0.5.13
Dec 05 15:11:18.412 INFO [stderr]     Checking comacro v0.0.1 (/source)
Dec 05 15:11:20.019 INFO [stderr] warning: unnecessary parentheses around pattern
Dec 05 15:11:20.019 INFO [stderr]   --> src/trace.rs:84:21
Dec 05 15:11:20.020 INFO [stderr]    |
Dec 05 15:11:20.020 INFO [stderr] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
Dec 05 15:11:20.020 INFO [stderr]    |                     ^^^^^^^^^^^^ help: remove these parentheses
Dec 05 15:11:20.021 INFO [stderr]    |
Dec 05 15:11:20.021 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 05 15:11:20.021 INFO [stderr] 
Dec 05 15:11:20.272 INFO [stderr] warning: unnecessary parentheses around pattern
Dec 05 15:11:20.272 INFO [stderr]   --> src/trace.rs:84:21
Dec 05 15:11:20.272 INFO [stderr]    |
Dec 05 15:11:20.273 INFO [stderr] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
Dec 05 15:11:20.273 INFO [stderr]    |                     ^^^^^^^^^^^^ help: remove these parentheses
Dec 05 15:11:20.273 INFO [stderr]    |
Dec 05 15:11:20.273 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 05 15:11:20.274 INFO [stderr] 
Dec 05 15:11:20.679 INFO [stderr] warning: unused variable: `x`
Dec 05 15:11:20.679 INFO [stderr]    --> src/repr.rs:270:29
Dec 05 15:11:20.680 INFO [stderr]     |
Dec 05 15:11:20.680 INFO [stderr] 270 |     fn push_byte(&mut self, x: u8) {}
Dec 05 15:11:20.680 INFO [stderr]     |                             ^ help: consider using `_x` instead
Dec 05 15:11:20.680 INFO [stderr]     |
Dec 05 15:11:20.681 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 15:11:20.681 INFO [stderr] 
Dec 05 15:11:20.681 INFO [stderr] warning: unused variable: `x`
Dec 05 15:11:20.681 INFO [stderr]    --> src/repr.rs:271:32
Dec 05 15:11:20.682 INFO [stderr]     |
Dec 05 15:11:20.682 INFO [stderr] 271 |     fn extend_bytes(&mut self, x: &[u8]) {}
Dec 05 15:11:20.682 INFO [stderr]     |                                ^ help: consider using `_x` instead
Dec 05 15:11:20.682 INFO [stderr] 
Dec 05 15:11:20.891 INFO [stderr] warning: variant is never constructed: `Cont`
Dec 05 15:11:20.891 INFO [stderr]   --> src/tokens.rs:18:5
Dec 05 15:11:20.891 INFO [stderr]    |
Dec 05 15:11:20.891 INFO [stderr] 18 |     Cont,
Dec 05 15:11:20.891 INFO [stderr]    |     ^^^^
Dec 05 15:11:20.891 INFO [stderr]    |
Dec 05 15:11:20.891 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 15:11:20.891 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]   --> src/repr.rs:41:9
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr] 41 |         write!(self.buf, "${}", x);
Dec 05 15:11:20.908 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 15:11:20.908 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]   --> src/repr.rs:47:9
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr] 47 |         write!(self.buf, "{}", s);
Dec 05 15:11:20.908 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]   --> src/repr.rs:53:9
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr] 53 |         write!(self.buf, "{}", s);
Dec 05 15:11:20.908 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]   --> src/repr.rs:59:9
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr] 59 |         write!(self.buf, "{}{{", s);
Dec 05 15:11:20.908 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]   --> src/repr.rs:65:9
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr] 65 |         write!(self.buf, "}}");
Dec 05 15:11:20.908 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]   --> src/repr.rs:71:13
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr] 71 |             write!(self.buf, "\n");
Dec 05 15:11:20.908 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]   --> src/repr.rs:90:9
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr] 90 |         write!(buf, "[");
Dec 05 15:11:20.908 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]    |
Dec 05 15:11:20.908 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]    --> src/repr.rs:113:13
Dec 05 15:11:20.908 INFO [stderr]     |
Dec 05 15:11:20.908 INFO [stderr] 113 |             write!(self.buf, "]");
Dec 05 15:11:20.908 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]     |
Dec 05 15:11:20.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.908 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 05 15:11:20.908 INFO [stderr] 
Dec 05 15:11:20.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.908 INFO [stderr]    --> src/repr.rs:120:9
Dec 05 15:11:20.908 INFO [stderr]     |
Dec 05 15:11:20.908 INFO [stderr] 120 |         write!(self.buf, "\"${}\"", x);
Dec 05 15:11:20.908 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.908 INFO [stderr]     |
Dec 05 15:11:20.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.909 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 05 15:11:20.909 INFO [stderr] 
Dec 05 15:11:20.909 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.909 INFO [stderr]    --> src/repr.rs:126:9
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr] 126 |         write!(self.buf, "{}", s);
Dec 05 15:11:20.909 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.909 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 05 15:11:20.909 INFO [stderr] 
Dec 05 15:11:20.909 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.909 INFO [stderr]    --> src/repr.rs:132:9
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr] 132 |         write!(self.buf, "\"{}\"", s);
Dec 05 15:11:20.909 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.909 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 05 15:11:20.909 INFO [stderr] 
Dec 05 15:11:20.909 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.909 INFO [stderr]    --> src/repr.rs:138:9
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr] 138 |         write!(self.buf, "[\"{}\"", s);
Dec 05 15:11:20.909 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.909 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 05 15:11:20.909 INFO [stderr] 
Dec 05 15:11:20.909 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:20.909 INFO [stderr]    --> src/repr.rs:143:9
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr] 143 |         write!(self.buf, "]");
Dec 05 15:11:20.909 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:20.909 INFO [stderr]     |
Dec 05 15:11:20.909 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:20.909 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 05 15:11:20.909 INFO [stderr] 
Dec 05 15:11:20.979 INFO [stderr] warning: unused variable: `x`
Dec 05 15:11:20.979 INFO [stderr]    --> src/repr.rs:270:29
Dec 05 15:11:20.979 INFO [stderr]     |
Dec 05 15:11:20.979 INFO [stderr] 270 |     fn push_byte(&mut self, x: u8) {}
Dec 05 15:11:20.979 INFO [stderr]     |                             ^ help: consider using `_x` instead
Dec 05 15:11:20.979 INFO [stderr]     |
Dec 05 15:11:20.979 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 15:11:20.979 INFO [stderr] 
Dec 05 15:11:20.979 INFO [stderr] warning: unused variable: `x`
Dec 05 15:11:20.979 INFO [stderr]    --> src/repr.rs:271:32
Dec 05 15:11:20.979 INFO [stderr]     |
Dec 05 15:11:20.979 INFO [stderr] 271 |     fn extend_bytes(&mut self, x: &[u8]) {}
Dec 05 15:11:20.979 INFO [stderr]     |                                ^ help: consider using `_x` instead
Dec 05 15:11:20.979 INFO [stderr] 
Dec 05 15:11:21.328 INFO [stderr] warning: variant is never constructed: `Cont`
Dec 05 15:11:21.328 INFO [stderr]   --> src/tokens.rs:18:5
Dec 05 15:11:21.328 INFO [stderr]    |
Dec 05 15:11:21.328 INFO [stderr] 18 |     Cont,
Dec 05 15:11:21.328 INFO [stderr]    |     ^^^^
Dec 05 15:11:21.328 INFO [stderr]    |
Dec 05 15:11:21.328 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 15:11:21.328 INFO [stderr] 
Dec 05 15:11:21.330 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.330 INFO [stderr]   --> src/repr.rs:41:9
Dec 05 15:11:21.330 INFO [stderr]    |
Dec 05 15:11:21.331 INFO [stderr] 41 |         write!(self.buf, "${}", x);
Dec 05 15:11:21.331 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.331 INFO [stderr]    |
Dec 05 15:11:21.332 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 15:11:21.332 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.332 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 05 15:11:21.332 INFO [stderr] 
Dec 05 15:11:21.333 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.333 INFO [stderr]   --> src/repr.rs:47:9
Dec 05 15:11:21.333 INFO [stderr]    |
Dec 05 15:11:21.334 INFO [stderr] 47 |         write!(self.buf, "{}", s);
Dec 05 15:11:21.334 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.334 INFO [stderr]    |
Dec 05 15:11:21.335 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.335 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 05 15:11:21.335 INFO [stderr] 
Dec 05 15:11:21.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.336 INFO [stderr]   --> src/repr.rs:53:9
Dec 05 15:11:21.336 INFO [stderr]    |
Dec 05 15:11:21.336 INFO [stderr] 53 |         write!(self.buf, "{}", s);
Dec 05 15:11:21.337 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.337 INFO [stderr]    |
Dec 05 15:11:21.337 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.338 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 05 15:11:21.338 INFO [stderr] 
Dec 05 15:11:21.338 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.339 INFO [stderr]   --> src/repr.rs:59:9
Dec 05 15:11:21.339 INFO [stderr]    |
Dec 05 15:11:21.339 INFO [stderr] 59 |         write!(self.buf, "{}{{", s);
Dec 05 15:11:21.339 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.340 INFO [stderr]    |
Dec 05 15:11:21.340 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.340 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 05 15:11:21.341 INFO [stderr] 
Dec 05 15:11:21.341 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.341 INFO [stderr]   --> src/repr.rs:65:9
Dec 05 15:11:21.342 INFO [stderr]    |
Dec 05 15:11:21.342 INFO [stderr] 65 |         write!(self.buf, "}}");
Dec 05 15:11:21.342 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.342 INFO [stderr]    |
Dec 05 15:11:21.343 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.343 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 05 15:11:21.343 INFO [stderr] 
Dec 05 15:11:21.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.344 INFO [stderr]   --> src/repr.rs:71:13
Dec 05 15:11:21.344 INFO [stderr]    |
Dec 05 15:11:21.345 INFO [stderr] 71 |             write!(self.buf, "\n");
Dec 05 15:11:21.345 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.345 INFO [stderr]    |
Dec 05 15:11:21.346 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.346 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 05 15:11:21.346 INFO [stderr] 
Dec 05 15:11:21.347 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.347 INFO [stderr]   --> src/repr.rs:90:9
Dec 05 15:11:21.347 INFO [stderr]    |
Dec 05 15:11:21.347 INFO [stderr] 90 |         write!(buf, "[");
Dec 05 15:11:21.348 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.348 INFO [stderr]    |
Dec 05 15:11:21.348 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.349 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 05 15:11:21.349 INFO [stderr] 
Dec 05 15:11:21.349 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.350 INFO [stderr]    --> src/repr.rs:113:13
Dec 05 15:11:21.350 INFO [stderr]     |
Dec 05 15:11:21.350 INFO [stderr] 113 |             write!(self.buf, "]");
Dec 05 15:11:21.350 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.351 INFO [stderr]     |
Dec 05 15:11:21.351 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.351 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 05 15:11:21.351 INFO [stderr] 
Dec 05 15:11:21.352 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.352 INFO [stderr]    --> src/repr.rs:120:9
Dec 05 15:11:21.352 INFO [stderr]     |
Dec 05 15:11:21.353 INFO [stderr] 120 |         write!(self.buf, "\"${}\"", x);
Dec 05 15:11:21.353 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.353 INFO [stderr]     |
Dec 05 15:11:21.354 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.354 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 05 15:11:21.354 INFO [stderr] 
Dec 05 15:11:21.355 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.355 INFO [stderr]    --> src/repr.rs:126:9
Dec 05 15:11:21.355 INFO [stderr]     |
Dec 05 15:11:21.356 INFO [stderr] 126 |         write!(self.buf, "{}", s);
Dec 05 15:11:21.356 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.356 INFO [stderr]     |
Dec 05 15:11:21.356 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.357 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 05 15:11:21.357 INFO [stderr] 
Dec 05 15:11:21.357 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.358 INFO [stderr]    --> src/repr.rs:132:9
Dec 05 15:11:21.358 INFO [stderr]     |
Dec 05 15:11:21.358 INFO [stderr] 132 |         write!(self.buf, "\"{}\"", s);
Dec 05 15:11:21.358 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.359 INFO [stderr]     |
Dec 05 15:11:21.359 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.359 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 05 15:11:21.360 INFO [stderr] 
Dec 05 15:11:21.360 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.360 INFO [stderr]    --> src/repr.rs:138:9
Dec 05 15:11:21.361 INFO [stderr]     |
Dec 05 15:11:21.361 INFO [stderr] 138 |         write!(self.buf, "[\"{}\"", s);
Dec 05 15:11:21.361 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.361 INFO [stderr]     |
Dec 05 15:11:21.362 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.362 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 05 15:11:21.362 INFO [stderr] 
Dec 05 15:11:21.363 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:11:21.363 INFO [stderr]    --> src/repr.rs:143:9
Dec 05 15:11:21.363 INFO [stderr]     |
Dec 05 15:11:21.364 INFO [stderr] 143 |         write!(self.buf, "]");
Dec 05 15:11:21.364 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:11:21.364 INFO [stderr]     |
Dec 05 15:11:21.365 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:11:21.365 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 05 15:11:21.365 INFO [stderr] 
Dec 05 15:11:23.279 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.29s
Dec 05 15:11:23.287 INFO [stderr] su: No module specific data is present
Dec 05 15:11:24.523 INFO running `"docker" "inspect" "e098d7a3fafbc690a76af8023536f69cfe3bab61d301829a9731f2036a9b0933"`
Dec 05 15:11:24.863 INFO running `"docker" "rm" "-f" "e098d7a3fafbc690a76af8023536f69cfe3bab61d301829a9731f2036a9b0933"`
Dec 05 15:11:25.182 INFO [stdout] e098d7a3fafbc690a76af8023536f69cfe3bab61d301829a9731f2036a9b0933