Dec 18 01:35:26.630 INFO checking ddfreyne/d-mark-rust against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 01:35:26.630 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/ddfreyne/d-mark-rust:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:35:26.810 INFO [stdout] 596ef47ee90c788ff400417918c9993a9b015c4dc9b3c2399e0edfbaf6d22a7d
Dec 18 01:35:26.812 INFO running `"docker" "start" "-a" "596ef47ee90c788ff400417918c9993a9b015c4dc9b3c2399e0edfbaf6d22a7d"`
Dec 18 01:35:27.390 INFO [stderr]     Checking d-mark v0.1.0 (/opt/crater/workdir)
Dec 18 01:35:27.737 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:35:27.737 INFO [stderr]   --> src/parser.rs:81:9
Dec 18 01:35:27.737 INFO [stderr]    |
Dec 18 01:35:27.737 INFO [stderr] 81 | /         write!(
Dec 18 01:35:27.737 INFO [stderr] 82 | |             f,
Dec 18 01:35:27.737 INFO [stderr] 83 | |             "parse error at line {}, column {}: #{:?}\n\n",
Dec 18 01:35:27.737 INFO [stderr] 84 | |             self.pos.line_nr, self.pos.col_nr, self.error,
Dec 18 01:35:27.737 INFO [stderr] 85 | |         );
Dec 18 01:35:27.737 INFO [stderr]    | |__________^
Dec 18 01:35:27.737 INFO [stderr]    |
Dec 18 01:35:27.737 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:35:27.737 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:35:27.737 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 18 01:35:27.737 INFO [stderr] 
Dec 18 01:35:27.737 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:35:27.737 INFO [stderr]   --> src/parser.rs:88:13
Dec 18 01:35:27.737 INFO [stderr]    |
Dec 18 01:35:27.737 INFO [stderr] 88 |             write!(f, "{}\n", line);
Dec 18 01:35:27.737 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:35:27.737 INFO [stderr]    |
Dec 18 01:35:27.737 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:35:27.737 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 18 01:35:27.737 INFO [stderr] 
Dec 18 01:35:27.737 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:35:27.737 INFO [stderr]   --> src/parser.rs:91:9
Dec 18 01:35:27.737 INFO [stderr]    |
Dec 18 01:35:27.737 INFO [stderr] 91 |         write!(f, "{}\n", self.line1.unwrap_or(""));
Dec 18 01:35:27.737 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:35:27.737 INFO [stderr]    |
Dec 18 01:35:27.737 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:35:27.737 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 18 01:35:27.737 INFO [stderr] 
Dec 18 01:35:28.206 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:35:28.207 INFO [stderr]   --> src/parser.rs:81:9
Dec 18 01:35:28.207 INFO [stderr]    |
Dec 18 01:35:28.207 INFO [stderr] 81 | /         write!(
Dec 18 01:35:28.207 INFO [stderr] 82 | |             f,
Dec 18 01:35:28.207 INFO [stderr] 83 | |             "parse error at line {}, column {}: #{:?}\n\n",
Dec 18 01:35:28.207 INFO [stderr] 84 | |             self.pos.line_nr, self.pos.col_nr, self.error,
Dec 18 01:35:28.207 INFO [stderr] 85 | |         );
Dec 18 01:35:28.207 INFO [stderr]    | |__________^
Dec 18 01:35:28.207 INFO [stderr]    |
Dec 18 01:35:28.207 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:35:28.207 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:35:28.207 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 18 01:35:28.207 INFO [stderr] 
Dec 18 01:35:28.207 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:35:28.207 INFO [stderr]   --> src/parser.rs:88:13
Dec 18 01:35:28.207 INFO [stderr]    |
Dec 18 01:35:28.207 INFO [stderr] 88 |             write!(f, "{}\n", line);
Dec 18 01:35:28.207 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:35:28.207 INFO [stderr]    |
Dec 18 01:35:28.207 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:35:28.207 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 18 01:35:28.207 INFO [stderr] 
Dec 18 01:35:28.207 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:35:28.207 INFO [stderr]   --> src/parser.rs:91:9
Dec 18 01:35:28.207 INFO [stderr]    |
Dec 18 01:35:28.207 INFO [stderr] 91 |         write!(f, "{}\n", self.line1.unwrap_or(""));
Dec 18 01:35:28.207 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:35:28.207 INFO [stderr]    |
Dec 18 01:35:28.207 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:35:28.207 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 18 01:35:28.207 INFO [stderr] 
Dec 18 01:35:28.255 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 18 01:35:28.578 INFO running `"docker" "inspect" "596ef47ee90c788ff400417918c9993a9b015c4dc9b3c2399e0edfbaf6d22a7d"`
Dec 18 01:35:28.718 INFO running `"docker" "rm" "-f" "596ef47ee90c788ff400417918c9993a9b015c4dc9b3c2399e0edfbaf6d22a7d"`
Dec 18 01:35:28.892 INFO [stdout] 596ef47ee90c788ff400417918c9993a9b015c4dc9b3c2399e0edfbaf6d22a7d