Dec 07 20:09:58.559 INFO testing comacro-0.0.1 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 20:09:58.559 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 07 20:09:59.072 INFO [stdout] d2f4207011597b5082302503117c65c91297628b030789b04d92802a3415e4c6
Dec 07 20:09:59.078 INFO running `"docker" "start" "-a" "d2f4207011597b5082302503117c65c91297628b030789b04d92802a3415e4c6"`
Dec 07 20:10:00.404 INFO [stderr] usermod: no changes
Dec 07 20:10:00.502 INFO [stderr]    Compiling log v0.4.6
Dec 07 20:10:00.506 INFO [stderr]    Compiling syn v0.15.22
Dec 07 20:10:12.609 INFO [stderr]    Compiling comacro v0.0.1 (/source)
Dec 07 20:10:13.516 INFO [stderr] warning: unnecessary parentheses around pattern
Dec 07 20:10:13.516 INFO [stderr]   --> src/trace.rs:84:21
Dec 07 20:10:13.516 INFO [stderr]    |
Dec 07 20:10:13.516 INFO [stderr] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
Dec 07 20:10:13.516 INFO [stderr]    |                     ^^^^^^^^^^^^ help: remove these parentheses
Dec 07 20:10:13.516 INFO [stderr]    |
Dec 07 20:10:13.516 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 07 20:10:13.516 INFO [stderr] 
Dec 07 20:10:13.817 INFO [stderr] warning: unused variable: `x`
Dec 07 20:10:13.817 INFO [stderr]    --> src/repr.rs:270:29
Dec 07 20:10:13.817 INFO [stderr]     |
Dec 07 20:10:13.817 INFO [stderr] 270 |     fn push_byte(&mut self, x: u8) {}
Dec 07 20:10:13.818 INFO [stderr]     |                             ^ help: consider using `_x` instead
Dec 07 20:10:13.818 INFO [stderr]     |
Dec 07 20:10:13.818 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 07 20:10:13.818 INFO [stderr] 
Dec 07 20:10:13.818 INFO [stderr] warning: unused variable: `x`
Dec 07 20:10:13.818 INFO [stderr]    --> src/repr.rs:271:32
Dec 07 20:10:13.818 INFO [stderr]     |
Dec 07 20:10:13.818 INFO [stderr] 271 |     fn extend_bytes(&mut self, x: &[u8]) {}
Dec 07 20:10:13.818 INFO [stderr]     |                                ^ help: consider using `_x` instead
Dec 07 20:10:13.818 INFO [stderr] 
Dec 07 20:10:13.984 INFO [stderr] warning: variant is never constructed: `Cont`
Dec 07 20:10:13.984 INFO [stderr]   --> src/tokens.rs:18:5
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr] 18 |     Cont,
Dec 07 20:10:13.984 INFO [stderr]    |     ^^^^
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 20:10:13.984 INFO [stderr] 
Dec 07 20:10:13.984 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.984 INFO [stderr]   --> src/repr.rs:41:9
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr] 41 |         write!(self.buf, "${}", x);
Dec 07 20:10:13.984 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 07 20:10:13.984 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.984 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 07 20:10:13.984 INFO [stderr] 
Dec 07 20:10:13.984 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.984 INFO [stderr]   --> src/repr.rs:47:9
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr] 47 |         write!(self.buf, "{}", s);
Dec 07 20:10:13.984 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.984 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 07 20:10:13.984 INFO [stderr] 
Dec 07 20:10:13.984 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.984 INFO [stderr]   --> src/repr.rs:53:9
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr] 53 |         write!(self.buf, "{}", s);
Dec 07 20:10:13.984 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.984 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 07 20:10:13.984 INFO [stderr] 
Dec 07 20:10:13.984 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.984 INFO [stderr]   --> src/repr.rs:59:9
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr] 59 |         write!(self.buf, "{}{{", s);
Dec 07 20:10:13.984 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.984 INFO [stderr]    |
Dec 07 20:10:13.984 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.984 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 07 20:10:13.984 INFO [stderr] 
Dec 07 20:10:13.984 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.984 INFO [stderr]   --> src/repr.rs:65:9
Dec 07 20:10:13.985 INFO [stderr]    |
Dec 07 20:10:13.985 INFO [stderr] 65 |         write!(self.buf, "}}");
Dec 07 20:10:13.985 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]    |
Dec 07 20:10:13.985 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]   --> src/repr.rs:71:13
Dec 07 20:10:13.985 INFO [stderr]    |
Dec 07 20:10:13.985 INFO [stderr] 71 |             write!(self.buf, "\n");
Dec 07 20:10:13.985 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]    |
Dec 07 20:10:13.985 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]   --> src/repr.rs:90:9
Dec 07 20:10:13.985 INFO [stderr]    |
Dec 07 20:10:13.985 INFO [stderr] 90 |         write!(buf, "[");
Dec 07 20:10:13.985 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]    |
Dec 07 20:10:13.985 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]    --> src/repr.rs:113:13
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr] 113 |             write!(self.buf, "]");
Dec 07 20:10:13.985 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]    --> src/repr.rs:120:9
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr] 120 |         write!(self.buf, "\"${}\"", x);
Dec 07 20:10:13.985 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]    --> src/repr.rs:126:9
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr] 126 |         write!(self.buf, "{}", s);
Dec 07 20:10:13.985 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]    --> src/repr.rs:132:9
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr] 132 |         write!(self.buf, "\"{}\"", s);
Dec 07 20:10:13.985 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]    --> src/repr.rs:138:9
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr] 138 |         write!(self.buf, "[\"{}\"", s);
Dec 07 20:10:13.985 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:13.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:13.985 INFO [stderr]    --> src/repr.rs:143:9
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr] 143 |         write!(self.buf, "]");
Dec 07 20:10:13.985 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:13.985 INFO [stderr]     |
Dec 07 20:10:13.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:13.985 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 07 20:10:13.985 INFO [stderr] 
Dec 07 20:10:17.895 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.46s
Dec 07 20:10:17.899 INFO [stderr] su: No module specific data is present
Dec 07 20:10:18.452 INFO running `"docker" "inspect" "d2f4207011597b5082302503117c65c91297628b030789b04d92802a3415e4c6"`
Dec 07 20:10:18.726 INFO running `"docker" "rm" "-f" "d2f4207011597b5082302503117c65c91297628b030789b04d92802a3415e4c6"`
Dec 07 20:10:19.044 INFO [stdout] d2f4207011597b5082302503117c65c91297628b030789b04d92802a3415e4c6
Dec 07 20:10:19.050 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 07 20:10:19.592 INFO [stdout] 88e31ab1f1ffdff49df67e86891a034d83e7b38a749565930d30eef73f84f60e
Dec 07 20:10:19.594 INFO running `"docker" "start" "-a" "88e31ab1f1ffdff49df67e86891a034d83e7b38a749565930d30eef73f84f60e"`
Dec 07 20:10:21.104 INFO [stderr] usermod: no changes
Dec 07 20:10:21.180 INFO [stderr]    Compiling env_logger v0.5.13
Dec 07 20:10:23.603 INFO [stderr]    Compiling comacro v0.0.1 (/source)
Dec 07 20:10:25.176 INFO [stderr] warning: unnecessary parentheses around pattern
Dec 07 20:10:25.176 INFO [stderr]   --> src/trace.rs:84:21
Dec 07 20:10:25.176 INFO [stderr]    |
Dec 07 20:10:25.176 INFO [stderr] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
Dec 07 20:10:25.176 INFO [stderr]    |                     ^^^^^^^^^^^^ help: remove these parentheses
Dec 07 20:10:25.176 INFO [stderr]    |
Dec 07 20:10:25.176 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 07 20:10:25.176 INFO [stderr] 
Dec 07 20:10:25.524 INFO [stderr] warning: unused variable: `x`
Dec 07 20:10:25.524 INFO [stderr]    --> src/repr.rs:270:29
Dec 07 20:10:25.524 INFO [stderr]     |
Dec 07 20:10:25.524 INFO [stderr] 270 |     fn push_byte(&mut self, x: u8) {}
Dec 07 20:10:25.524 INFO [stderr]     |                             ^ help: consider using `_x` instead
Dec 07 20:10:25.524 INFO [stderr]     |
Dec 07 20:10:25.524 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 07 20:10:25.524 INFO [stderr] 
Dec 07 20:10:25.524 INFO [stderr] warning: unused variable: `x`
Dec 07 20:10:25.524 INFO [stderr]    --> src/repr.rs:271:32
Dec 07 20:10:25.524 INFO [stderr]     |
Dec 07 20:10:25.524 INFO [stderr] 271 |     fn extend_bytes(&mut self, x: &[u8]) {}
Dec 07 20:10:25.524 INFO [stderr]     |                                ^ help: consider using `_x` instead
Dec 07 20:10:25.524 INFO [stderr] 
Dec 07 20:10:25.844 INFO [stderr] warning: variant is never constructed: `Cont`
Dec 07 20:10:25.844 INFO [stderr]   --> src/tokens.rs:18:5
Dec 07 20:10:25.844 INFO [stderr]    |
Dec 07 20:10:25.844 INFO [stderr] 18 |     Cont,
Dec 07 20:10:25.844 INFO [stderr]    |     ^^^^
Dec 07 20:10:25.844 INFO [stderr]    |
Dec 07 20:10:25.844 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 20:10:25.844 INFO [stderr] 
Dec 07 20:10:25.846 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.846 INFO [stderr]   --> src/repr.rs:41:9
Dec 07 20:10:25.846 INFO [stderr]    |
Dec 07 20:10:25.846 INFO [stderr] 41 |         write!(self.buf, "${}", x);
Dec 07 20:10:25.846 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.846 INFO [stderr]    |
Dec 07 20:10:25.846 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 07 20:10:25.846 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.846 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 07 20:10:25.846 INFO [stderr] 
Dec 07 20:10:25.846 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.846 INFO [stderr]   --> src/repr.rs:47:9
Dec 07 20:10:25.846 INFO [stderr]    |
Dec 07 20:10:25.846 INFO [stderr] 47 |         write!(self.buf, "{}", s);
Dec 07 20:10:25.846 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.846 INFO [stderr]    |
Dec 07 20:10:25.846 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.846 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 07 20:10:25.846 INFO [stderr] 
Dec 07 20:10:25.846 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.847 INFO [stderr]   --> src/repr.rs:53:9
Dec 07 20:10:25.847 INFO [stderr]    |
Dec 07 20:10:25.847 INFO [stderr] 53 |         write!(self.buf, "{}", s);
Dec 07 20:10:25.847 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.848 INFO [stderr]    |
Dec 07 20:10:25.848 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.848 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 07 20:10:25.848 INFO [stderr] 
Dec 07 20:10:25.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.849 INFO [stderr]   --> src/repr.rs:59:9
Dec 07 20:10:25.849 INFO [stderr]    |
Dec 07 20:10:25.849 INFO [stderr] 59 |         write!(self.buf, "{}{{", s);
Dec 07 20:10:25.850 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.850 INFO [stderr]    |
Dec 07 20:10:25.850 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.850 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 07 20:10:25.851 INFO [stderr] 
Dec 07 20:10:25.851 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.851 INFO [stderr]   --> src/repr.rs:65:9
Dec 07 20:10:25.851 INFO [stderr]    |
Dec 07 20:10:25.852 INFO [stderr] 65 |         write!(self.buf, "}}");
Dec 07 20:10:25.852 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.852 INFO [stderr]    |
Dec 07 20:10:25.853 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.853 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 07 20:10:25.853 INFO [stderr] 
Dec 07 20:10:25.853 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.854 INFO [stderr]   --> src/repr.rs:71:13
Dec 07 20:10:25.854 INFO [stderr]    |
Dec 07 20:10:25.854 INFO [stderr] 71 |             write!(self.buf, "\n");
Dec 07 20:10:25.855 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.855 INFO [stderr]    |
Dec 07 20:10:25.855 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.855 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 07 20:10:25.855 INFO [stderr] 
Dec 07 20:10:25.856 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.856 INFO [stderr]   --> src/repr.rs:90:9
Dec 07 20:10:25.856 INFO [stderr]    |
Dec 07 20:10:25.857 INFO [stderr] 90 |         write!(buf, "[");
Dec 07 20:10:25.857 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.857 INFO [stderr]    |
Dec 07 20:10:25.857 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.858 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 07 20:10:25.858 INFO [stderr] 
Dec 07 20:10:25.858 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.858 INFO [stderr]    --> src/repr.rs:113:13
Dec 07 20:10:25.859 INFO [stderr]     |
Dec 07 20:10:25.859 INFO [stderr] 113 |             write!(self.buf, "]");
Dec 07 20:10:25.859 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.860 INFO [stderr]     |
Dec 07 20:10:25.860 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.860 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 07 20:10:25.860 INFO [stderr] 
Dec 07 20:10:25.861 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.861 INFO [stderr]    --> src/repr.rs:120:9
Dec 07 20:10:25.861 INFO [stderr]     |
Dec 07 20:10:25.861 INFO [stderr] 120 |         write!(self.buf, "\"${}\"", x);
Dec 07 20:10:25.862 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.862 INFO [stderr]     |
Dec 07 20:10:25.862 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.862 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 07 20:10:25.862 INFO [stderr] 
Dec 07 20:10:25.863 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.863 INFO [stderr]    --> src/repr.rs:126:9
Dec 07 20:10:25.863 INFO [stderr]     |
Dec 07 20:10:25.863 INFO [stderr] 126 |         write!(self.buf, "{}", s);
Dec 07 20:10:25.864 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.864 INFO [stderr]     |
Dec 07 20:10:25.864 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.865 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 07 20:10:25.865 INFO [stderr] 
Dec 07 20:10:25.865 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.865 INFO [stderr]    --> src/repr.rs:132:9
Dec 07 20:10:25.865 INFO [stderr]     |
Dec 07 20:10:25.866 INFO [stderr] 132 |         write!(self.buf, "\"{}\"", s);
Dec 07 20:10:25.866 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.866 INFO [stderr]     |
Dec 07 20:10:25.866 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.866 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 07 20:10:25.866 INFO [stderr] 
Dec 07 20:10:25.866 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.866 INFO [stderr]    --> src/repr.rs:138:9
Dec 07 20:10:25.866 INFO [stderr]     |
Dec 07 20:10:25.866 INFO [stderr] 138 |         write!(self.buf, "[\"{}\"", s);
Dec 07 20:10:25.866 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.866 INFO [stderr]     |
Dec 07 20:10:25.866 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.867 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 07 20:10:25.867 INFO [stderr] 
Dec 07 20:10:25.867 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 20:10:25.867 INFO [stderr]    --> src/repr.rs:143:9
Dec 07 20:10:25.867 INFO [stderr]     |
Dec 07 20:10:25.867 INFO [stderr] 143 |         write!(self.buf, "]");
Dec 07 20:10:25.867 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 07 20:10:25.867 INFO [stderr]     |
Dec 07 20:10:25.867 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 20:10:25.867 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 07 20:10:25.867 INFO [stderr] 
Dec 07 20:10:28.924 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.82s
Dec 07 20:10:28.932 INFO [stderr] su: No module specific data is present
Dec 07 20:10:29.254 INFO running `"docker" "inspect" "88e31ab1f1ffdff49df67e86891a034d83e7b38a749565930d30eef73f84f60e"`
Dec 07 20:10:29.332 INFO running `"docker" "rm" "-f" "88e31ab1f1ffdff49df67e86891a034d83e7b38a749565930d30eef73f84f60e"`
Dec 07 20:10:29.435 INFO [stdout] 88e31ab1f1ffdff49df67e86891a034d83e7b38a749565930d30eef73f84f60e
Dec 07 20:10:29.438 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 07 20:10:29.681 INFO [stdout] d4bd6b376cc848938b69720d445f3770a1932e8e3e53b12e79f2c5708df1d855
Dec 07 20:10:29.683 INFO running `"docker" "start" "-a" "d4bd6b376cc848938b69720d445f3770a1932e8e3e53b12e79f2c5708df1d855"`
Dec 07 20:10:30.312 INFO [stderr] usermod: no changes
Dec 07 20:10:30.479 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
Dec 07 20:10:30.479 INFO [stderr]      Running /target/debug/deps/comacro-480f443f304bbd8a
Dec 07 20:10:30.482 INFO [stdout] 
Dec 07 20:10:30.482 INFO [stdout] running 0 tests
Dec 07 20:10:30.482 INFO [stdout] 
Dec 07 20:10:30.482 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 20:10:30.482 INFO [stdout] 
Dec 07 20:10:30.500 INFO [stderr]    Doc-tests comacro
Dec 07 20:10:32.034 INFO [stdout] 
Dec 07 20:10:32.034 INFO [stdout] running 0 tests
Dec 07 20:10:32.034 INFO [stdout] 
Dec 07 20:10:32.034 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 20:10:32.034 INFO [stdout] 
Dec 07 20:10:32.056 INFO [stderr] su: No module specific data is present
Dec 07 20:10:32.576 INFO running `"docker" "inspect" "d4bd6b376cc848938b69720d445f3770a1932e8e3e53b12e79f2c5708df1d855"`
Dec 07 20:10:32.820 INFO running `"docker" "rm" "-f" "d4bd6b376cc848938b69720d445f3770a1932e8e3e53b12e79f2c5708df1d855"`
Dec 07 20:10:33.061 INFO [stdout] d4bd6b376cc848938b69720d445f3770a1932e8e3e53b12e79f2c5708df1d855