Dec 18 18:27:19.253 INFO checking argle-0.1.2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:27:19.253 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/argle/0.1.2:/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 18:27:19.836 INFO [stdout] d3763c6d401d473dd67fb1d782cc79e4938ee183c02d81872ebbaf067f1613b3
Dec 18 18:27:19.838 INFO running `"docker" "start" "-a" "d3763c6d401d473dd67fb1d782cc79e4938ee183c02d81872ebbaf067f1613b3"`
Dec 18 18:27:21.256 INFO [stderr]     Checking argle v0.1.2 (/opt/crater/workdir)
Dec 18 18:27:22.042 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.042 INFO [stderr]   --> src/lib.rs:85:17
Dec 18 18:27:22.042 INFO [stderr]    |
Dec 18 18:27:22.042 INFO [stderr] 85 |                 write!(buf, "Default: {}", d);
Dec 18 18:27:22.042 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.042 INFO [stderr]    |
Dec 18 18:27:22.042 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 18:27:22.043 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.043 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 18:27:22.043 INFO [stderr] 
Dec 18 18:27:22.043 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.044 INFO [stderr]   --> src/lib.rs:88:17
Dec 18 18:27:22.044 INFO [stderr]    |
Dec 18 18:27:22.044 INFO [stderr] 88 |                 write!(buf, "Dependency: {}", c);
Dec 18 18:27:22.044 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.045 INFO [stderr]    |
Dec 18 18:27:22.048 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.048 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 18:27:22.048 INFO [stderr] 
Dec 18 18:27:22.048 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.048 INFO [stderr]   --> src/lib.rs:91:17
Dec 18 18:27:22.048 INFO [stderr]    |
Dec 18 18:27:22.048 INFO [stderr] 91 |                 write!(buf, "Required");
Dec 18 18:27:22.048 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.048 INFO [stderr]    |
Dec 18 18:27:22.048 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.048 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 18:27:22.048 INFO [stderr] 
Dec 18 18:27:22.048 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.048 INFO [stderr]    --> src/lib.rs:108:17
Dec 18 18:27:22.048 INFO [stderr]     |
Dec 18 18:27:22.048 INFO [stderr] 108 |                 write!(buf, "{}", sep);
Dec 18 18:27:22.048 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.048 INFO [stderr]     |
Dec 18 18:27:22.048 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.048 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 18:27:22.048 INFO [stderr] 
Dec 18 18:27:22.048 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.048 INFO [stderr]    --> src/lib.rs:133:17
Dec 18 18:27:22.048 INFO [stderr]     |
Dec 18 18:27:22.048 INFO [stderr] 133 |                 write!(buf, " (");
Dec 18 18:27:22.048 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.048 INFO [stderr]     |
Dec 18 18:27:22.048 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.048 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 18:27:22.048 INFO [stderr] 
Dec 18 18:27:22.048 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.048 INFO [stderr]    --> src/lib.rs:136:17
Dec 18 18:27:22.048 INFO [stderr]     |
Dec 18 18:27:22.048 INFO [stderr] 136 |                 write!(buf, ")");
Dec 18 18:27:22.048 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.048 INFO [stderr]     |
Dec 18 18:27:22.048 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.048 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 18:27:22.048 INFO [stderr] 
Dec 18 18:27:22.341 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.342 INFO [stderr]   --> src/lib.rs:85:17
Dec 18 18:27:22.342 INFO [stderr]    |
Dec 18 18:27:22.342 INFO [stderr] 85 |                 write!(buf, "Default: {}", d);
Dec 18 18:27:22.343 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.343 INFO [stderr]    |
Dec 18 18:27:22.343 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 18:27:22.343 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.344 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 18:27:22.344 INFO [stderr] 
Dec 18 18:27:22.366 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.367 INFO [stderr]   --> src/lib.rs:88:17
Dec 18 18:27:22.367 INFO [stderr]    |
Dec 18 18:27:22.367 INFO [stderr] 88 |                 write!(buf, "Dependency: {}", c);
Dec 18 18:27:22.367 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.367 INFO [stderr]    |
Dec 18 18:27:22.367 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.367 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 18:27:22.367 INFO [stderr] 
Dec 18 18:27:22.367 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.367 INFO [stderr]   --> src/lib.rs:91:17
Dec 18 18:27:22.367 INFO [stderr]    |
Dec 18 18:27:22.367 INFO [stderr] 91 |                 write!(buf, "Required");
Dec 18 18:27:22.367 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.367 INFO [stderr]    |
Dec 18 18:27:22.367 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.367 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 18:27:22.367 INFO [stderr] 
Dec 18 18:27:22.367 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.367 INFO [stderr]    --> src/lib.rs:108:17
Dec 18 18:27:22.367 INFO [stderr]     |
Dec 18 18:27:22.367 INFO [stderr] 108 |                 write!(buf, "{}", sep);
Dec 18 18:27:22.367 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.367 INFO [stderr]     |
Dec 18 18:27:22.367 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.367 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 18:27:22.367 INFO [stderr] 
Dec 18 18:27:22.367 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.367 INFO [stderr]    --> src/lib.rs:133:17
Dec 18 18:27:22.367 INFO [stderr]     |
Dec 18 18:27:22.367 INFO [stderr] 133 |                 write!(buf, " (");
Dec 18 18:27:22.367 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.367 INFO [stderr]     |
Dec 18 18:27:22.367 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.367 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 18:27:22.367 INFO [stderr] 
Dec 18 18:27:22.367 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.367 INFO [stderr]    --> src/lib.rs:136:17
Dec 18 18:27:22.367 INFO [stderr]     |
Dec 18 18:27:22.367 INFO [stderr] 136 |                 write!(buf, ")");
Dec 18 18:27:22.367 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.367 INFO [stderr]     |
Dec 18 18:27:22.367 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.367 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 18:27:22.367 INFO [stderr] 
Dec 18 18:27:22.367 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:27:22.367 INFO [stderr]     --> src/lib.rs:1336:9
Dec 18 18:27:22.367 INFO [stderr]      |
Dec 18 18:27:22.367 INFO [stderr] 1336 |         write!(&mut s, "{}", d);
Dec 18 18:27:22.367 INFO [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:27:22.367 INFO [stderr]      |
Dec 18 18:27:22.367 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:27:22.367 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 18:27:22.367 INFO [stderr] 
Dec 18 18:27:22.373 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Dec 18 18:27:22.941 INFO running `"docker" "inspect" "d3763c6d401d473dd67fb1d782cc79e4938ee183c02d81872ebbaf067f1613b3"`
Dec 18 18:27:23.090 INFO running `"docker" "rm" "-f" "d3763c6d401d473dd67fb1d782cc79e4938ee183c02d81872ebbaf067f1613b3"`
Dec 18 18:27:23.236 INFO [stdout] d3763c6d401d473dd67fb1d782cc79e4938ee183c02d81872ebbaf067f1613b3