Dec 18 18:13:36.776 INFO checking bflog-0.3.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:13:36.776 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/reg/bflog/0.3.1:/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 18:13:37.095 INFO [stdout] 2f0dfbf039389700e932f91d3c471497a7474c972833700cf72e6eb947cc92c0
Dec 18 18:13:37.097 INFO running `"docker" "start" "-a" "2f0dfbf039389700e932f91d3c471497a7474c972833700cf72e6eb947cc92c0"`
Dec 18 18:13:37.847 INFO [stderr]     Checking bflog v0.3.1 (/opt/crater/workdir)
Dec 18 18:13:38.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.848 INFO [stderr]    --> src/output.rs:176:7
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr] 176 |       write!(writer, " {}:", key);
Dec 18 18:13:38.848 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 18:13:38.848 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.848 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 18 18:13:38.848 INFO [stderr] 
Dec 18 18:13:38.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.848 INFO [stderr]    --> src/output.rs:181:7
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr] 181 |       write!(writer, " {}{}:{}", KEY_COLOR, key, VALUE_COLOR);
Dec 18 18:13:38.848 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.848 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 18 18:13:38.848 INFO [stderr] 
Dec 18 18:13:38.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.848 INFO [stderr]    --> src/output.rs:186:7
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr] 186 |       write!(writer, ",{:?}:", key);
Dec 18 18:13:38.848 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.848 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 18 18:13:38.848 INFO [stderr] 
Dec 18 18:13:38.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.848 INFO [stderr]    --> src/output.rs:196:7
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr] 196 |       write!(writer, "\n{}: ", key);
Dec 18 18:13:38.848 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.848 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 18 18:13:38.848 INFO [stderr] 
Dec 18 18:13:38.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.848 INFO [stderr]    --> src/output.rs:201:7
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.848 INFO [stderr] 201 |       write!(writer, "\n{}{}:{} ", KEY_COLOR, key, Color::Reset);
Dec 18 18:13:38.848 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.848 INFO [stderr]     |
Dec 18 18:13:38.849 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.849 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 18:13:38.849 INFO [stderr] 
Dec 18 18:13:38.849 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.849 INFO [stderr]    --> src/output.rs:206:7
Dec 18 18:13:38.849 INFO [stderr]     |
Dec 18 18:13:38.849 INFO [stderr] 206 |       write!(writer, ",{:?}:", key);
Dec 18 18:13:38.849 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.849 INFO [stderr]     |
Dec 18 18:13:38.849 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.849 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 18:13:38.849 INFO [stderr] 
Dec 18 18:13:38.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.904 INFO [stderr]    --> src/output.rs:176:7
Dec 18 18:13:38.904 INFO [stderr]     |
Dec 18 18:13:38.904 INFO [stderr] 176 |       write!(writer, " {}:", key);
Dec 18 18:13:38.904 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.904 INFO [stderr]     |
Dec 18 18:13:38.904 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 18:13:38.904 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.904 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 18:13:38.904 INFO [stderr] 
Dec 18 18:13:38.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.904 INFO [stderr]    --> src/output.rs:181:7
Dec 18 18:13:38.904 INFO [stderr]     |
Dec 18 18:13:38.904 INFO [stderr] 181 |       write!(writer, " {}{}:{}", KEY_COLOR, key, VALUE_COLOR);
Dec 18 18:13:38.904 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.904 INFO [stderr]     |
Dec 18 18:13:38.904 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.904 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 18:13:38.904 INFO [stderr] 
Dec 18 18:13:38.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.904 INFO [stderr]    --> src/output.rs:186:7
Dec 18 18:13:38.904 INFO [stderr]     |
Dec 18 18:13:38.904 INFO [stderr] 186 |       write!(writer, ",{:?}:", key);
Dec 18 18:13:38.904 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.908 INFO [stderr]     |
Dec 18 18:13:38.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.908 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 18 18:13:38.908 INFO [stderr] 
Dec 18 18:13:38.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.908 INFO [stderr]    --> src/output.rs:196:7
Dec 18 18:13:38.908 INFO [stderr]     |
Dec 18 18:13:38.908 INFO [stderr] 196 |       write!(writer, "\n{}: ", key);
Dec 18 18:13:38.908 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.908 INFO [stderr]     |
Dec 18 18:13:38.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.908 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 18 18:13:38.908 INFO [stderr] 
Dec 18 18:13:38.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.908 INFO [stderr]    --> src/output.rs:201:7
Dec 18 18:13:38.908 INFO [stderr]     |
Dec 18 18:13:38.908 INFO [stderr] 201 |       write!(writer, "\n{}{}:{} ", KEY_COLOR, key, Color::Reset);
Dec 18 18:13:38.908 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.908 INFO [stderr]     |
Dec 18 18:13:38.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.908 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 18 18:13:38.908 INFO [stderr] 
Dec 18 18:13:38.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:13:38.912 INFO [stderr]    --> src/output.rs:206:7
Dec 18 18:13:38.912 INFO [stderr]     |
Dec 18 18:13:38.912 INFO [stderr] 206 |       write!(writer, ",{:?}:", key);
Dec 18 18:13:38.912 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:38.912 INFO [stderr]     |
Dec 18 18:13:38.912 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:13:38.912 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 18:13:38.912 INFO [stderr] 
Dec 18 18:13:38.948 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Dec 18 18:13:39.619 INFO running `"docker" "inspect" "2f0dfbf039389700e932f91d3c471497a7474c972833700cf72e6eb947cc92c0"`
Dec 18 18:13:39.898 INFO running `"docker" "rm" "-f" "2f0dfbf039389700e932f91d3c471497a7474c972833700cf72e6eb947cc92c0"`
Dec 18 18:13:40.206 INFO [stdout] 2f0dfbf039389700e932f91d3c471497a7474c972833700cf72e6eb947cc92c0