Dec 18 11:43:04.210 INFO checking rustfst-0.1.7 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 11:43:04.210 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/rustfst/0.1.7:/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 11:43:04.511 INFO [stdout] 60aa703ce2806127330260d161f70cc2326dfc6e0a94cc133ef8f53340897c5a
Dec 18 11:43:04.514 INFO running `"docker" "start" "-a" "60aa703ce2806127330260d161f70cc2326dfc6e0a94cc133ef8f53340897c5a"`
Dec 18 11:43:05.138 INFO [stderr]     Checking counter v0.4.3
Dec 18 11:43:05.138 INFO [stderr]     Checking rustfst v0.1.7 (/opt/crater/workdir)
Dec 18 11:43:06.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:06.432 INFO [stderr]    --> src/fst_impls/vector_fst/vector_fst.rs:198:1
Dec 18 11:43:06.432 INFO [stderr]     |
Dec 18 11:43:06.432 INFO [stderr] 198 | display_fst!(W, VectorFst<W>);
Dec 18 11:43:06.432 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:06.432 INFO [stderr]     |
Dec 18 11:43:06.432 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 11:43:06.432 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:06.432 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 11:43:06.432 INFO [stderr] 
Dec 18 11:43:06.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:06.433 INFO [stderr]   --> src/semirings/boolean_weight.rs:42:1
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr] 42 | display_semiring!(BooleanWeight);
Dec 18 11:43:06.433 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:06.433 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 11:43:06.433 INFO [stderr] 
Dec 18 11:43:06.433 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:06.433 INFO [stderr]   --> src/semirings/integer_weight.rs:46:1
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr] 46 | display_semiring!(IntegerWeight);
Dec 18 11:43:06.433 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:06.433 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 11:43:06.433 INFO [stderr] 
Dec 18 11:43:06.433 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:06.433 INFO [stderr]   --> src/semirings/log_weight.rs:67:1
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr] 67 | display_semiring!(LogWeight);
Dec 18 11:43:06.433 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:06.433 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 11:43:06.433 INFO [stderr] 
Dec 18 11:43:06.433 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:06.433 INFO [stderr]   --> src/semirings/probability_weight.rs:44:1
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr] 44 | display_semiring!(ProbabilityWeight);
Dec 18 11:43:06.433 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:06.433 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 11:43:06.433 INFO [stderr] 
Dec 18 11:43:06.433 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:06.433 INFO [stderr]   --> src/semirings/tropical_weight.rs:57:1
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr] 57 | display_semiring!(TropicalWeight);
Dec 18 11:43:06.433 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:06.433 INFO [stderr]    |
Dec 18 11:43:06.433 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:06.433 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 11:43:06.433 INFO [stderr] 
Dec 18 11:43:07.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:07.424 INFO [stderr]    --> src/fst_impls/vector_fst/vector_fst.rs:198:1
Dec 18 11:43:07.424 INFO [stderr]     |
Dec 18 11:43:07.424 INFO [stderr] 198 | display_fst!(W, VectorFst<W>);
Dec 18 11:43:07.424 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:07.424 INFO [stderr]     |
Dec 18 11:43:07.424 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 11:43:07.424 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:07.424 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 11:43:07.424 INFO [stderr] 
Dec 18 11:43:07.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:07.424 INFO [stderr]   --> src/semirings/boolean_weight.rs:42:1
Dec 18 11:43:07.424 INFO [stderr]    |
Dec 18 11:43:07.424 INFO [stderr] 42 | display_semiring!(BooleanWeight);
Dec 18 11:43:07.424 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:07.424 INFO [stderr]    |
Dec 18 11:43:07.424 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:07.424 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 11:43:07.425 INFO [stderr] 
Dec 18 11:43:07.428 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:07.429 INFO [stderr]   --> src/semirings/integer_weight.rs:46:1
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr] 46 | display_semiring!(IntegerWeight);
Dec 18 11:43:07.429 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:07.429 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 11:43:07.429 INFO [stderr] 
Dec 18 11:43:07.429 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:07.429 INFO [stderr]   --> src/semirings/log_weight.rs:67:1
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr] 67 | display_semiring!(LogWeight);
Dec 18 11:43:07.429 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:07.429 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 11:43:07.429 INFO [stderr] 
Dec 18 11:43:07.429 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:07.429 INFO [stderr]   --> src/semirings/probability_weight.rs:44:1
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr] 44 | display_semiring!(ProbabilityWeight);
Dec 18 11:43:07.429 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:07.429 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 11:43:07.429 INFO [stderr] 
Dec 18 11:43:07.429 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:43:07.429 INFO [stderr]   --> src/semirings/tropical_weight.rs:57:1
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr] 57 | display_semiring!(TropicalWeight);
Dec 18 11:43:07.429 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 18 11:43:07.429 INFO [stderr]    |
Dec 18 11:43:07.429 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:43:07.429 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 11:43:07.429 INFO [stderr] 
Dec 18 11:43:07.480 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
Dec 18 11:43:07.978 INFO running `"docker" "inspect" "60aa703ce2806127330260d161f70cc2326dfc6e0a94cc133ef8f53340897c5a"`
Dec 18 11:43:08.243 INFO running `"docker" "rm" "-f" "60aa703ce2806127330260d161f70cc2326dfc6e0a94cc133ef8f53340897c5a"`
Dec 18 11:43:08.708 INFO [stdout] 60aa703ce2806127330260d161f70cc2326dfc6e0a94cc133ef8f53340897c5a