Dec 15 18:28:47.436 INFO testing comacro-0.0.1 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 18:28:47.436 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 18:28:47.765 INFO [stdout] 3258a65be91bf7dc03b08b050b4409a1f0f4915a9fe22113653167f8d5a8ca86
Dec 15 18:28:47.769 INFO running `"docker" "start" "-a" "3258a65be91bf7dc03b08b050b4409a1f0f4915a9fe22113653167f8d5a8ca86"`
Dec 15 18:28:48.287 INFO [stderr] usermod: no changes
Dec 15 18:28:48.358 INFO [stderr]    Compiling log v0.4.6
Dec 15 18:28:48.358 INFO [stderr]    Compiling syn v0.15.22
Dec 15 18:29:00.383 INFO [stderr]    Compiling comacro v0.0.1 (/source)
Dec 15 18:29:01.375 INFO [stderr] warning: unnecessary parentheses around pattern
Dec 15 18:29:01.375 INFO [stderr]   --> src/trace.rs:84:21
Dec 15 18:29:01.375 INFO [stderr]    |
Dec 15 18:29:01.375 INFO [stderr] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
Dec 15 18:29:01.375 INFO [stderr]    |                     ^^^^^^^^^^^^ help: remove these parentheses
Dec 15 18:29:01.375 INFO [stderr]    |
Dec 15 18:29:01.375 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 15 18:29:01.375 INFO [stderr] 
Dec 15 18:29:01.679 INFO [stderr] warning: unused variable: `x`
Dec 15 18:29:01.679 INFO [stderr]    --> src/repr.rs:270:29
Dec 15 18:29:01.679 INFO [stderr]     |
Dec 15 18:29:01.679 INFO [stderr] 270 |     fn push_byte(&mut self, x: u8) {}
Dec 15 18:29:01.679 INFO [stderr]     |                             ^ help: consider using `_x` instead
Dec 15 18:29:01.679 INFO [stderr]     |
Dec 15 18:29:01.679 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 15 18:29:01.679 INFO [stderr] 
Dec 15 18:29:01.679 INFO [stderr] warning: unused variable: `x`
Dec 15 18:29:01.679 INFO [stderr]    --> src/repr.rs:271:32
Dec 15 18:29:01.679 INFO [stderr]     |
Dec 15 18:29:01.679 INFO [stderr] 271 |     fn extend_bytes(&mut self, x: &[u8]) {}
Dec 15 18:29:01.679 INFO [stderr]     |                                ^ help: consider using `_x` instead
Dec 15 18:29:01.679 INFO [stderr] 
Dec 15 18:29:01.839 INFO [stderr] warning: variant is never constructed: `Cont`
Dec 15 18:29:01.839 INFO [stderr]   --> src/tokens.rs:18:5
Dec 15 18:29:01.839 INFO [stderr]    |
Dec 15 18:29:01.839 INFO [stderr] 18 |     Cont,
Dec 15 18:29:01.839 INFO [stderr]    |     ^^^^
Dec 15 18:29:01.839 INFO [stderr]    |
Dec 15 18:29:01.839 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 18:29:01.839 INFO [stderr] 
Dec 15 18:29:01.839 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.839 INFO [stderr]   --> src/repr.rs:41:9
Dec 15 18:29:01.839 INFO [stderr]    |
Dec 15 18:29:01.839 INFO [stderr] 41 |         write!(self.buf, "${}", x);
Dec 15 18:29:01.839 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.839 INFO [stderr]    |
Dec 15 18:29:01.839 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 15 18:29:01.839 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.839 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 15 18:29:01.839 INFO [stderr] 
Dec 15 18:29:01.839 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.839 INFO [stderr]   --> src/repr.rs:47:9
Dec 15 18:29:01.839 INFO [stderr]    |
Dec 15 18:29:01.839 INFO [stderr] 47 |         write!(self.buf, "{}", s);
Dec 15 18:29:01.839 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.839 INFO [stderr]    |
Dec 15 18:29:01.839 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.839 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 15 18:29:01.839 INFO [stderr] 
Dec 15 18:29:01.839 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]   --> src/repr.rs:53:9
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr] 53 |         write!(self.buf, "{}", s);
Dec 15 18:29:01.840 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]   --> src/repr.rs:59:9
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr] 59 |         write!(self.buf, "{}{{", s);
Dec 15 18:29:01.840 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]   --> src/repr.rs:65:9
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr] 65 |         write!(self.buf, "}}");
Dec 15 18:29:01.840 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]   --> src/repr.rs:71:13
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr] 71 |             write!(self.buf, "\n");
Dec 15 18:29:01.840 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]   --> src/repr.rs:90:9
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr] 90 |         write!(buf, "[");
Dec 15 18:29:01.840 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]    |
Dec 15 18:29:01.840 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]    --> src/repr.rs:113:13
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr] 113 |             write!(self.buf, "]");
Dec 15 18:29:01.840 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]    --> src/repr.rs:120:9
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr] 120 |         write!(self.buf, "\"${}\"", x);
Dec 15 18:29:01.840 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]    --> src/repr.rs:126:9
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr] 126 |         write!(self.buf, "{}", s);
Dec 15 18:29:01.840 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]    --> src/repr.rs:132:9
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr] 132 |         write!(self.buf, "\"{}\"", s);
Dec 15 18:29:01.840 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.840 INFO [stderr]    --> src/repr.rs:138:9
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr] 138 |         write!(self.buf, "[\"{}\"", s);
Dec 15 18:29:01.840 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.840 INFO [stderr]     |
Dec 15 18:29:01.840 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.840 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 15 18:29:01.840 INFO [stderr] 
Dec 15 18:29:01.841 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:01.841 INFO [stderr]    --> src/repr.rs:143:9
Dec 15 18:29:01.841 INFO [stderr]     |
Dec 15 18:29:01.841 INFO [stderr] 143 |         write!(self.buf, "]");
Dec 15 18:29:01.841 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:01.841 INFO [stderr]     |
Dec 15 18:29:01.841 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:01.841 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 15 18:29:01.841 INFO [stderr] 
Dec 15 18:29:06.604 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.29s
Dec 15 18:29:06.653 INFO [stderr] su: No module specific data is present
Dec 15 18:29:07.236 INFO running `"docker" "inspect" "3258a65be91bf7dc03b08b050b4409a1f0f4915a9fe22113653167f8d5a8ca86"`
Dec 15 18:29:07.647 INFO running `"docker" "rm" "-f" "3258a65be91bf7dc03b08b050b4409a1f0f4915a9fe22113653167f8d5a8ca86"`
Dec 15 18:29:07.911 INFO [stdout] 3258a65be91bf7dc03b08b050b4409a1f0f4915a9fe22113653167f8d5a8ca86
Dec 15 18:29:07.919 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 18:29:08.273 INFO [stdout] e322c85673d7d5c64c8496878c8a505a948381d36c47f931940238caaa243702
Dec 15 18:29:08.277 INFO running `"docker" "start" "-a" "e322c85673d7d5c64c8496878c8a505a948381d36c47f931940238caaa243702"`
Dec 15 18:29:09.636 INFO [stderr] usermod: no changes
Dec 15 18:29:09.799 INFO [stderr]    Compiling env_logger v0.5.13
Dec 15 18:29:13.094 INFO [stderr]    Compiling comacro v0.0.1 (/source)
Dec 15 18:29:14.531 INFO [stderr] warning: unnecessary parentheses around pattern
Dec 15 18:29:14.531 INFO [stderr]   --> src/trace.rs:84:21
Dec 15 18:29:14.531 INFO [stderr]    |
Dec 15 18:29:14.531 INFO [stderr] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
Dec 15 18:29:14.531 INFO [stderr]    |                     ^^^^^^^^^^^^ help: remove these parentheses
Dec 15 18:29:14.531 INFO [stderr]    |
Dec 15 18:29:14.531 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 15 18:29:14.531 INFO [stderr] 
Dec 15 18:29:14.947 INFO [stderr] warning: unused variable: `x`
Dec 15 18:29:14.947 INFO [stderr]    --> src/repr.rs:270:29
Dec 15 18:29:14.947 INFO [stderr]     |
Dec 15 18:29:14.947 INFO [stderr] 270 |     fn push_byte(&mut self, x: u8) {}
Dec 15 18:29:14.947 INFO [stderr]     |                             ^ help: consider using `_x` instead
Dec 15 18:29:14.947 INFO [stderr]     |
Dec 15 18:29:14.947 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 15 18:29:14.947 INFO [stderr] 
Dec 15 18:29:14.947 INFO [stderr] warning: unused variable: `x`
Dec 15 18:29:14.947 INFO [stderr]    --> src/repr.rs:271:32
Dec 15 18:29:14.947 INFO [stderr]     |
Dec 15 18:29:14.947 INFO [stderr] 271 |     fn extend_bytes(&mut self, x: &[u8]) {}
Dec 15 18:29:14.947 INFO [stderr]     |                                ^ help: consider using `_x` instead
Dec 15 18:29:14.947 INFO [stderr] 
Dec 15 18:29:15.122 INFO [stderr] warning: variant is never constructed: `Cont`
Dec 15 18:29:15.123 INFO [stderr]   --> src/tokens.rs:18:5
Dec 15 18:29:15.123 INFO [stderr]    |
Dec 15 18:29:15.123 INFO [stderr] 18 |     Cont,
Dec 15 18:29:15.123 INFO [stderr]    |     ^^^^
Dec 15 18:29:15.123 INFO [stderr]    |
Dec 15 18:29:15.123 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 18:29:15.123 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]   --> src/repr.rs:41:9
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr] 41 |         write!(self.buf, "${}", x);
Dec 15 18:29:15.131 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 15 18:29:15.131 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]   --> src/repr.rs:47:9
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr] 47 |         write!(self.buf, "{}", s);
Dec 15 18:29:15.131 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]   --> src/repr.rs:53:9
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr] 53 |         write!(self.buf, "{}", s);
Dec 15 18:29:15.131 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]   --> src/repr.rs:59:9
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr] 59 |         write!(self.buf, "{}{{", s);
Dec 15 18:29:15.131 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]   --> src/repr.rs:65:9
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr] 65 |         write!(self.buf, "}}");
Dec 15 18:29:15.131 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]   --> src/repr.rs:71:13
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr] 71 |             write!(self.buf, "\n");
Dec 15 18:29:15.131 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]   --> src/repr.rs:90:9
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr] 90 |         write!(buf, "[");
Dec 15 18:29:15.131 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]    |
Dec 15 18:29:15.131 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]    --> src/repr.rs:113:13
Dec 15 18:29:15.131 INFO [stderr]     |
Dec 15 18:29:15.131 INFO [stderr] 113 |             write!(self.buf, "]");
Dec 15 18:29:15.131 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]     |
Dec 15 18:29:15.131 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]    --> src/repr.rs:120:9
Dec 15 18:29:15.131 INFO [stderr]     |
Dec 15 18:29:15.131 INFO [stderr] 120 |         write!(self.buf, "\"${}\"", x);
Dec 15 18:29:15.131 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.131 INFO [stderr]     |
Dec 15 18:29:15.131 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.131 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 15 18:29:15.131 INFO [stderr] 
Dec 15 18:29:15.131 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.131 INFO [stderr]    --> src/repr.rs:126:9
Dec 15 18:29:15.131 INFO [stderr]     |
Dec 15 18:29:15.131 INFO [stderr] 126 |         write!(self.buf, "{}", s);
Dec 15 18:29:15.131 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.132 INFO [stderr]     |
Dec 15 18:29:15.132 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.132 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 15 18:29:15.132 INFO [stderr] 
Dec 15 18:29:15.132 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.132 INFO [stderr]    --> src/repr.rs:132:9
Dec 15 18:29:15.132 INFO [stderr]     |
Dec 15 18:29:15.132 INFO [stderr] 132 |         write!(self.buf, "\"{}\"", s);
Dec 15 18:29:15.132 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.132 INFO [stderr]     |
Dec 15 18:29:15.132 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.132 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 15 18:29:15.132 INFO [stderr] 
Dec 15 18:29:15.132 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.132 INFO [stderr]    --> src/repr.rs:138:9
Dec 15 18:29:15.132 INFO [stderr]     |
Dec 15 18:29:15.132 INFO [stderr] 138 |         write!(self.buf, "[\"{}\"", s);
Dec 15 18:29:15.132 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.132 INFO [stderr]     |
Dec 15 18:29:15.132 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.132 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 15 18:29:15.132 INFO [stderr] 
Dec 15 18:29:15.132 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 18:29:15.132 INFO [stderr]    --> src/repr.rs:143:9
Dec 15 18:29:15.132 INFO [stderr]     |
Dec 15 18:29:15.132 INFO [stderr] 143 |         write!(self.buf, "]");
Dec 15 18:29:15.132 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 15 18:29:15.132 INFO [stderr]     |
Dec 15 18:29:15.132 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 18:29:15.132 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 15 18:29:15.132 INFO [stderr] 
Dec 15 18:29:18.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.30s
Dec 15 18:29:18.971 INFO [stderr] su: No module specific data is present
Dec 15 18:29:19.641 INFO running `"docker" "inspect" "e322c85673d7d5c64c8496878c8a505a948381d36c47f931940238caaa243702"`
Dec 15 18:29:19.901 INFO running `"docker" "rm" "-f" "e322c85673d7d5c64c8496878c8a505a948381d36c47f931940238caaa243702"`
Dec 15 18:29:20.252 INFO [stdout] e322c85673d7d5c64c8496878c8a505a948381d36c47f931940238caaa243702
Dec 15 18:29:20.259 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 18:29:20.807 INFO [stdout] ac7939f1841e233bfd9c339f56ab962b96b47847b69b23498258ada131843c6c
Dec 15 18:29:20.808 INFO running `"docker" "start" "-a" "ac7939f1841e233bfd9c339f56ab962b96b47847b69b23498258ada131843c6c"`
Dec 15 18:29:22.047 INFO [stderr] usermod: no changes
Dec 15 18:29:22.197 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
Dec 15 18:29:22.203 INFO [stderr]      Running /target/debug/deps/comacro-8181eb58b36430e1
Dec 15 18:29:22.219 INFO [stderr]    Doc-tests comacro
Dec 15 18:29:22.219 INFO [stdout] 
Dec 15 18:29:22.219 INFO [stdout] running 0 tests
Dec 15 18:29:22.219 INFO [stdout] 
Dec 15 18:29:22.219 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 18:29:22.219 INFO [stdout] 
Dec 15 18:29:23.970 INFO [stdout] 
Dec 15 18:29:23.970 INFO [stdout] running 0 tests
Dec 15 18:29:23.970 INFO [stdout] 
Dec 15 18:29:23.970 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 18:29:23.970 INFO [stdout] 
Dec 15 18:29:23.981 INFO [stderr] su: No module specific data is present
Dec 15 18:29:24.368 INFO running `"docker" "inspect" "ac7939f1841e233bfd9c339f56ab962b96b47847b69b23498258ada131843c6c"`
Dec 15 18:29:24.552 INFO running `"docker" "rm" "-f" "ac7939f1841e233bfd9c339f56ab962b96b47847b69b23498258ada131843c6c"`
Dec 15 18:29:24.819 INFO [stdout] ac7939f1841e233bfd9c339f56ab962b96b47847b69b23498258ada131843c6c