Dec 05 07:20:03.167 INFO checking rustfst-0.1.7 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 07:20:03.167 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-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 05 07:20:03.571 INFO [stdout] 53cd4015477facc5481217388f2decc9f3f8e2c41b52748f684138f0e1e8395d
Dec 05 07:20:03.576 INFO running `"docker" "start" "-a" "53cd4015477facc5481217388f2decc9f3f8e2c41b52748f684138f0e1e8395d"`
Dec 05 07:20:04.866 INFO [stderr] usermod: no changes
Dec 05 07:20:04.967 INFO [stderr]     Checking counter v0.4.3
Dec 05 07:20:04.967 INFO [stderr]     Checking rustfst v0.1.7 (/source)
Dec 05 07:20:07.375 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:07.375 INFO [stderr]    --> src/fst_impls/vector_fst/vector_fst.rs:198:1
Dec 05 07:20:07.375 INFO [stderr]     |
Dec 05 07:20:07.375 INFO [stderr] 198 | display_fst!(W, VectorFst<W>);
Dec 05 07:20:07.375 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:07.375 INFO [stderr]     |
Dec 05 07:20:07.375 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 07:20:07.375 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:07.375 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 05 07:20:07.375 INFO [stderr] 
Dec 05 07:20:07.375 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:07.375 INFO [stderr]   --> src/semirings/boolean_weight.rs:42:1
Dec 05 07:20:07.375 INFO [stderr]    |
Dec 05 07:20:07.375 INFO [stderr] 42 | display_semiring!(BooleanWeight);
Dec 05 07:20:07.375 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:07.375 INFO [stderr]    |
Dec 05 07:20:07.375 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:07.375 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 05 07:20:07.375 INFO [stderr] 
Dec 05 07:20:07.375 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:07.375 INFO [stderr]   --> src/semirings/integer_weight.rs:46:1
Dec 05 07:20:07.375 INFO [stderr]    |
Dec 05 07:20:07.375 INFO [stderr] 46 | display_semiring!(IntegerWeight);
Dec 05 07:20:07.375 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:07.375 INFO [stderr]    |
Dec 05 07:20:07.375 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:07.375 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 05 07:20:07.375 INFO [stderr] 
Dec 05 07:20:07.375 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:07.375 INFO [stderr]   --> src/semirings/log_weight.rs:67:1
Dec 05 07:20:07.375 INFO [stderr]    |
Dec 05 07:20:07.376 INFO [stderr] 67 | display_semiring!(LogWeight);
Dec 05 07:20:07.376 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:07.376 INFO [stderr]    |
Dec 05 07:20:07.376 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:07.376 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 05 07:20:07.376 INFO [stderr] 
Dec 05 07:20:07.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:07.376 INFO [stderr]   --> src/semirings/probability_weight.rs:44:1
Dec 05 07:20:07.376 INFO [stderr]    |
Dec 05 07:20:07.376 INFO [stderr] 44 | display_semiring!(ProbabilityWeight);
Dec 05 07:20:07.376 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:07.376 INFO [stderr]    |
Dec 05 07:20:07.376 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:07.376 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 05 07:20:07.376 INFO [stderr] 
Dec 05 07:20:07.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:07.376 INFO [stderr]   --> src/semirings/tropical_weight.rs:57:1
Dec 05 07:20:07.376 INFO [stderr]    |
Dec 05 07:20:07.376 INFO [stderr] 57 | display_semiring!(TropicalWeight);
Dec 05 07:20:07.376 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:07.376 INFO [stderr]    |
Dec 05 07:20:07.376 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:07.376 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 05 07:20:07.376 INFO [stderr] 
Dec 05 07:20:08.805 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:08.805 INFO [stderr]    --> src/fst_impls/vector_fst/vector_fst.rs:198:1
Dec 05 07:20:08.805 INFO [stderr]     |
Dec 05 07:20:08.805 INFO [stderr] 198 | display_fst!(W, VectorFst<W>);
Dec 05 07:20:08.805 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:08.805 INFO [stderr]     |
Dec 05 07:20:08.805 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 07:20:08.805 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:08.805 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 05 07:20:08.805 INFO [stderr] 
Dec 05 07:20:08.805 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:08.805 INFO [stderr]   --> src/semirings/boolean_weight.rs:42:1
Dec 05 07:20:08.805 INFO [stderr]    |
Dec 05 07:20:08.805 INFO [stderr] 42 | display_semiring!(BooleanWeight);
Dec 05 07:20:08.805 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:08.805 INFO [stderr]    |
Dec 05 07:20:08.805 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:08.805 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 05 07:20:08.805 INFO [stderr] 
Dec 05 07:20:08.806 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:08.806 INFO [stderr]   --> src/semirings/integer_weight.rs:46:1
Dec 05 07:20:08.806 INFO [stderr]    |
Dec 05 07:20:08.806 INFO [stderr] 46 | display_semiring!(IntegerWeight);
Dec 05 07:20:08.806 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:08.806 INFO [stderr]    |
Dec 05 07:20:08.806 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:08.806 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 05 07:20:08.806 INFO [stderr] 
Dec 05 07:20:08.806 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:08.806 INFO [stderr]   --> src/semirings/log_weight.rs:67:1
Dec 05 07:20:08.806 INFO [stderr]    |
Dec 05 07:20:08.806 INFO [stderr] 67 | display_semiring!(LogWeight);
Dec 05 07:20:08.806 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:08.806 INFO [stderr]    |
Dec 05 07:20:08.806 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:08.807 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 05 07:20:08.807 INFO [stderr] 
Dec 05 07:20:08.811 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:08.811 INFO [stderr]   --> src/semirings/probability_weight.rs:44:1
Dec 05 07:20:08.811 INFO [stderr]    |
Dec 05 07:20:08.811 INFO [stderr] 44 | display_semiring!(ProbabilityWeight);
Dec 05 07:20:08.811 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:08.811 INFO [stderr]    |
Dec 05 07:20:08.811 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:08.811 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 05 07:20:08.811 INFO [stderr] 
Dec 05 07:20:08.811 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 07:20:08.811 INFO [stderr]   --> src/semirings/tropical_weight.rs:57:1
Dec 05 07:20:08.811 INFO [stderr]    |
Dec 05 07:20:08.811 INFO [stderr] 57 | display_semiring!(TropicalWeight);
Dec 05 07:20:08.811 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
Dec 05 07:20:08.811 INFO [stderr]    |
Dec 05 07:20:08.811 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 07:20:08.811 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 05 07:20:08.811 INFO [stderr] 
Dec 05 07:20:08.855 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
Dec 05 07:20:08.863 INFO [stderr] su: No module specific data is present
Dec 05 07:20:10.167 INFO running `"docker" "inspect" "53cd4015477facc5481217388f2decc9f3f8e2c41b52748f684138f0e1e8395d"`
Dec 05 07:20:10.451 INFO running `"docker" "rm" "-f" "53cd4015477facc5481217388f2decc9f3f8e2c41b52748f684138f0e1e8395d"`
Dec 05 07:20:10.749 INFO [stdout] 53cd4015477facc5481217388f2decc9f3f8e2c41b52748f684138f0e1e8395d