[INFO] crate rustfst 0.1.7 is already in cache
[INFO] extracting crate rustfst 0.1.7 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/rustfst/0.1.7
[INFO] extracting crate rustfst 0.1.7 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/rustfst/0.1.7
[INFO] validating manifest of rustfst-0.1.7 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rustfst-0.1.7 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rustfst-0.1.7
[INFO] finished frobbing rustfst-0.1.7
[INFO] frobbed toml for rustfst-0.1.7 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/rustfst/0.1.7/Cargo.toml
[INFO] started frobbing rustfst-0.1.7
[INFO] finished frobbing rustfst-0.1.7
[INFO] frobbed toml for rustfst-0.1.7 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/rustfst/0.1.7/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rustfst-0.1.7 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7228150e03b66904c94fda061db6ff4c5b13fae39e4f5783dff8439af342211b
[INFO] running `"docker" "start" "-a" "7228150e03b66904c94fda061db6ff4c5b13fae39e4f5783dff8439af342211b"`
[INFO] [stderr]     Checking counter v0.4.3
[INFO] [stderr]     Checking rustfst v0.1.7 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/fst_impls/vector_fst/vector_fst.rs:198:1
[INFO] [stderr]     |
[INFO] [stderr] 198 | display_fst!(W, VectorFst<W>);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/boolean_weight.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | display_semiring!(BooleanWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/integer_weight.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | display_semiring!(IntegerWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/log_weight.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | display_semiring!(LogWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/probability_weight.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | display_semiring!(ProbabilityWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/tropical_weight.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | display_semiring!(TropicalWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/fst_impls/vector_fst/vector_fst.rs:198:1
[INFO] [stderr]     |
[INFO] [stderr] 198 | display_fst!(W, VectorFst<W>);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/boolean_weight.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | display_semiring!(BooleanWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/integer_weight.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | display_semiring!(IntegerWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/log_weight.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | display_semiring!(LogWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/probability_weight.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | display_semiring!(ProbabilityWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/semirings/tropical_weight.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | display_semiring!(TropicalWeight);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `"docker" "inspect" "7228150e03b66904c94fda061db6ff4c5b13fae39e4f5783dff8439af342211b"`
[INFO] running `"docker" "rm" "-f" "7228150e03b66904c94fda061db6ff4c5b13fae39e4f5783dff8439af342211b"`
[INFO] [stdout] 7228150e03b66904c94fda061db6ff4c5b13fae39e4f5783dff8439af342211b