[INFO] crate rustfst 0.3.0 is already in cache
[INFO] extracting crate rustfst 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rustfst/0.3.0
[INFO] extracting crate rustfst 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustfst/0.3.0
[INFO] validating manifest of rustfst-0.3.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rustfst-0.3.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rustfst-0.3.0
[INFO] finished frobbing rustfst-0.3.0
[INFO] frobbed toml for rustfst-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rustfst/0.3.0/Cargo.toml
[INFO] started frobbing rustfst-0.3.0
[INFO] finished frobbing rustfst-0.3.0
[INFO] frobbed toml for rustfst-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustfst/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rustfst-0.3.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustfst/0.3.0:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 377277020e87d9acf070d1c428b2455f94f526a0d5f1c517b5439ee6a4bf5106
[INFO] running `"docker" "start" "-a" "377277020e87d9acf070d1c428b2455f94f526a0d5f1c517b5439ee6a4bf5106"`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling bimap v0.3.1
[INFO] [stderr]    Compiling rustfst v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/identity_arc_mapper.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | arc_mapper_to_weight_convert_mapper!(IdentityArcMapper);
[INFO] [stderr]    | -------------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/identity_arc_mapper.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | arc_mapper_to_weight_convert_mapper!(IdentityArcMapper);
[INFO] [stderr]    | -------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/identity_arc_mapper.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | arc_mapper_to_weight_convert_mapper!(IdentityArcMapper);
[INFO] [stderr]    | -------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/input_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(InputEpsilonMapper);
[INFO] [stderr]    | --------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/input_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(InputEpsilonMapper);
[INFO] [stderr]    | --------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/input_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(InputEpsilonMapper);
[INFO] [stderr]    | --------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/invert_weight_mapper.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/invert_weight_mapper.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/invert_weight_mapper.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/output_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(OutputEpsilonMapper);
[INFO] [stderr]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/output_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(OutputEpsilonMapper);
[INFO] [stderr]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/output_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(OutputEpsilonMapper);
[INFO] [stderr]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/plus_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(PlusMapper<S>);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/plus_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(PlusMapper<S>);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/plus_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(PlusMapper<S>);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/quantize_mapper.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/quantize_mapper.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/quantize_mapper.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/rm_weight_mapper.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | arc_mapper_to_weight_convert_mapper!(RmWeightMapper);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/rm_weight_mapper.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | arc_mapper_to_weight_convert_mapper!(RmWeightMapper);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/rm_weight_mapper.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | arc_mapper_to_weight_convert_mapper!(RmWeightMapper);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/times_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(TimesMapper<S>);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/times_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(TimesMapper<S>);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/times_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(TimesMapper<S>);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.87s
[INFO] running `"docker" "inspect" "377277020e87d9acf070d1c428b2455f94f526a0d5f1c517b5439ee6a4bf5106"`
[INFO] running `"docker" "rm" "-f" "377277020e87d9acf070d1c428b2455f94f526a0d5f1c517b5439ee6a4bf5106"`
[INFO] [stdout] 377277020e87d9acf070d1c428b2455f94f526a0d5f1c517b5439ee6a4bf5106
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustfst/0.3.0:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] bf2ccd557c81cd4a1d81c18c87a984678982757c14c23746aedd8cf4f371476f
[INFO] running `"docker" "start" "-a" "bf2ccd557c81cd4a1d81c18c87a984678982757c14c23746aedd8cf4f371476f"`
[INFO] [stderr]    Compiling counter v0.4.3
[INFO] [stderr]    Compiling rustfst v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/tests_pynini.rs:799:21
[INFO] [stderr]     |
[INFO] [stderr] 799 |         let mut x: &Fail = fail;
[INFO] [stderr]     |                     ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/identity_arc_mapper.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | arc_mapper_to_weight_convert_mapper!(IdentityArcMapper);
[INFO] [stderr]    | -------------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/identity_arc_mapper.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | arc_mapper_to_weight_convert_mapper!(IdentityArcMapper);
[INFO] [stderr]    | -------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/identity_arc_mapper.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | arc_mapper_to_weight_convert_mapper!(IdentityArcMapper);
[INFO] [stderr]    | -------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/input_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(InputEpsilonMapper);
[INFO] [stderr]    | --------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/input_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(InputEpsilonMapper);
[INFO] [stderr]    | --------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/input_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(InputEpsilonMapper);
[INFO] [stderr]    | --------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/invert_weight_mapper.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/invert_weight_mapper.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/invert_weight_mapper.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/output_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(OutputEpsilonMapper);
[INFO] [stderr]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/output_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(OutputEpsilonMapper);
[INFO] [stderr]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/output_epsilon_mapper.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | arc_mapper_to_weight_convert_mapper!(OutputEpsilonMapper);
[INFO] [stderr]    | ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/plus_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(PlusMapper<S>);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/plus_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(PlusMapper<S>);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/plus_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(PlusMapper<S>);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/quantize_mapper.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/quantize_mapper.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/quantize_mapper.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     arc_mapper_to_weight_convert_mapper_methods!(S);
[INFO] [stderr]    |     ------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/rm_weight_mapper.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | arc_mapper_to_weight_convert_mapper!(RmWeightMapper);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/rm_weight_mapper.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | arc_mapper_to_weight_convert_mapper!(RmWeightMapper);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/rm_weight_mapper.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | arc_mapper_to_weight_convert_mapper!(RmWeightMapper);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:5:27
[INFO] [stderr]    |
[INFO] [stderr] 5  |             (self as &mut ArcMapper<$semiring>).arc_map(&mut mapped_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/times_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(TimesMapper<S>);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |             (self as &mut ArcMapper<$semiring>).final_arc_map(&mut mapped_final_arc)?;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/times_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(TimesMapper<S>);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algorithms/arc_mappers/arc_mapper_to_weight_convert_mapper.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |             (self as &ArcMapper<$semiring>).final_action()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArcMapper<$semiring>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/algorithms/arc_mappers/times_mapper.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | arc_mapper_to_weight_convert_mapper!(TimesMapper<S>);
[INFO] [stderr]    | ----------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.01s
[INFO] running `"docker" "inspect" "bf2ccd557c81cd4a1d81c18c87a984678982757c14c23746aedd8cf4f371476f"`
[INFO] running `"docker" "rm" "-f" "bf2ccd557c81cd4a1d81c18c87a984678982757c14c23746aedd8cf4f371476f"`
[INFO] [stdout] bf2ccd557c81cd4a1d81c18c87a984678982757c14c23746aedd8cf4f371476f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustfst/0.3.0:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] cd7ec4fcb9a029e0b7457b1d50ca0088f42939d203ec4853b6dfadca9f8253cb
[INFO] running `"docker" "start" "-a" "cd7ec4fcb9a029e0b7457b1d50ca0088f42939d203ec4853b6dfadca9f8253cb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustfst-86b3a5ad869a8050
[INFO] [stdout] 
[INFO] [stdout] running 46 tests
[INFO] [stdout] test algorithms::connect::tests::test_connect_generic ... ok
[INFO] [stdout] test algorithms::concat::tests::test_concat_generic ... ok
[INFO] [stdout] test algorithms::determinize::tests::test_determinize ... ok
[INFO] [stdout] test algorithms::isomorphic::test::test_isomorphic_1 ... ok
[INFO] [stdout] test algorithms::isomorphic::test::test_isomorphic_2 ... ok
[INFO] [stdout] test algorithms::determinize::tests::test_determinize_2 ... ok
[INFO] [stdout] test algorithms::projection::tests::test_projection_input_generic ... ok
[INFO] [stdout] test algorithms::all_pairs_shortest_distance::test::test_all_pairs_distance_generic ... ok
[INFO] [stdout] test algorithms::inversion::tests::test_invert_generic ... ok
[INFO] [stdout] test algorithms::single_source_shortest_distance::tests::test_single_source_shortest_distance_generic ... ok
[INFO] [stdout] test algorithms::rm_epsilon::tests::test_epsilon_removal_generic ... ok
[INFO] [stdout] test algorithms::single_source_shortest_distance::tests::test_shortest_distance_generic ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_del_state_arcs ... ok
[INFO] [stdout] test algorithms::relabel_pairs::tests::test_projection_input_generic ... ok
[INFO] [stdout] test algorithms::state_mappers::arc_unique_mapper::test::test_arc_map_unique ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_deleting_twice_same_state ... ok
[INFO] [stdout] test algorithms::projection::tests::test_projection_output_generic ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_parse_single_final_state ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_mutable_iter_arcs_small ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_only_final_states ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_final_weight ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_del_multiple_states ... ok
[INFO] [stdout] test fst_traits::paths_iterator::tests::test_paths_iterator_empty_fst ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_write_read_text ... ok
[INFO] [stdout] test fst_traits::paths_iterator::tests::test_paths_iterator_linear_fst ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_small_fst ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_parse_text ... ok
[INFO] [stdout] test fst_traits::paths_iterator::tests::test_paths_iterator_single_state_start_and_final ... ok
[INFO] [stdout] test fst_impls::vector::test::tests::test_start_states ... ok
[INFO] [stdout] test fst_traits::paths_iterator::tests::test_paths_iterator_small_fst_multiple_final_states ... ok
[INFO] [stdout] test fst_traits::paths_iterator::tests::test_paths_iterator_small_fst_one_final_state ... ok
[INFO] [stdout] test parsers::text_fst::parsed_text_fst::tests::test_parse_text_fst_infinity_final_states ... ok
[INFO] [stdout] test parsers::text_fst::parsed_text_fst::tests::test_parse_text_fst ... ok
[INFO] [stdout] test algorithms::union::tests::test_union_generic ... ok
[INFO] [stdout] test semirings::string_variant::test::test_string_variant_iterator_labels ... ok
[INFO] [stdout] test parsers::text_symt::parsed_text_symt::tests::test_parse_text_symt ... ok
[INFO] [stdout] test semirings::boolean_weight::tests::test_boolean_weight ... ok
[INFO] [stdout] test semirings::string_variant::test::test_string_variant_iterator_inf ... ok
[INFO] [stdout] test parsers::text_fst::parsed_text_fst::tests::test_parse_text_fst_not_contiguous ... ok
[INFO] [stdout] test utils::fst_to_labels::tests::test_decode_linear_fst_acceptor ... ok
[INFO] [stdout] test utils::fst_to_labels::tests::test_decode_linear_fst_empty_fst ... ok
[INFO] [stdout] test utils::fst_to_labels::tests::test_decode_linear_fst_fst_not_linear ... ok
[INFO] [stdout] test utils::fst_to_labels::tests::test_decode_linear_fst_state_start_and_final ... ok
[INFO] [stdout] test utils::fst_to_labels::tests::test_decode_linear_fst_transducer ... ok
[INFO] [stdout] test parsers::text_fst::parsed_text_fst::tests::test_parse_text_fst_not_finishing_with_eol ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tests_pynini-735119bcf916a14f
[INFO] [stdout] test fst_impls::vector::test::tests::test_del_states_big ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 46 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_pynini_fst_000 ... ok
[INFO] [stdout] test test_pynini_fst_001 ... ok
[INFO] [stdout] test test_pynini_fst_006 ... ok
[INFO] [stdout] test test_pynini_fst_002 ... ok
[INFO] [stdout] test test_pynini_fst_004 ... ok
[INFO] [stdout] test test_pynini_fst_005 ... ok
[INFO] [stdout] test test_pynini_fst_007 ... ok
[INFO] [stdout] test test_pynini_fst_003 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustfst
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test src/algorithms/projection.rs - algorithms::projection::project (line 38) ... ok
[INFO] [stdout] test src/algorithms/inversion.rs - algorithms::inversion::invert (line 14) ... ok
[INFO] [stdout] test src/algorithms/projection.rs - algorithms::projection::project (line 21) ... ok
[INFO] [stdout] test src/algorithms/all_pairs_shortest_distance.rs - algorithms::all_pairs_shortest_distance::all_pairs_shortest_distance (line 13) ... ok
[INFO] [stdout] test src/algorithms/relabel_pairs.rs - algorithms::relabel_pairs::relabel_pairs (line 32) ... ok
[INFO] [stdout] test src/algorithms/composition.rs - algorithms::composition::compose (line 17) ... ok
[INFO] [stdout] test src/algorithms/concat.rs - algorithms::concat::concat (line 13) ... ok
[INFO] [stdout] test src/algorithms/connect.rs - algorithms::connect::connect (line 37) ... ok
[INFO] [stdout] test src/algorithms/single_source_shortest_distance.rs - algorithms::single_source_shortest_distance::shortest_distance (line 85) ... ok
[INFO] [stdout] test src/algorithms/single_source_shortest_distance.rs - algorithms::single_source_shortest_distance::single_source_shortest_distance (line 14) ... ok
[INFO] [stdout] test src/arc.rs - arc::Arc<W>::set_value (line 46) ... ok
[INFO] [stdout] test src/fst_path.rs - fst_path (line 125) ... ok
[INFO] [stdout] test src/arc.rs - arc::Arc<W>::new (line 22) ... ok
[INFO] [stdout] test src/algorithms/union.rs - algorithms::union::union (line 15) ... ok
[INFO] [stdout] test src/fst_path.rs - fst_path (line 112) ... ok
[INFO] [stdout] test src/fst_path.rs - fst_path (line 99) ... ok
[INFO] [stdout] test src/fst_path.rs - fst_path (line 86) ... ok
[INFO] [stdout] test src/algorithms/rm_epsilon.rs - algorithms::rm_epsilon::rm_epsilon (line 69) ... ok
[INFO] [stdout] test src/fst_traits/expanded_fst.rs - fst_traits::expanded_fst::ExpandedFst::num_states (line 20) ... ok
[INFO] [stdout] test src/fst_traits/fst.rs - fst_traits::fst::CoreFst::final_weight (line 38) ... ok
[INFO] [stdout] test src/fst_traits/fst.rs - fst_traits::fst::CoreFst::is_final (line 77) ... ok
[INFO] [stdout] test src/fst_traits/fst.rs - fst_traits::fst::CoreFst::start (line 19) ... ok
[INFO] [stdout] test src/fst_traits/fst.rs - fst_traits::fst::CoreFst::num_arcs (line 58) ... ok
[INFO] [stdout] test src/fst_traits/fst.rs - fst_traits::fst::StateIterator::states_iter (line 110) ... ok
[INFO] [stdout] test src/fst_traits/fst.rs - fst_traits::fst::Fst::num_output_epsilons (line 174) ... ok
[INFO] [stdout] test src/fst_traits/fst.rs - fst_traits::fst::Fst::num_input_epsilons (line 147) ... ok
[INFO] [stdout] test src/fst_traits/mutable_fst.rs - fst_traits::mutable_fst::MutableFst::add_state (line 68) ... ok
[INFO] [stdout] test src/fst_traits/mutable_fst.rs - fst_traits::mutable_fst::MutableFst::del_state (line 90) ... ok
[INFO] [stdout] test src/fst_traits/mutable_fst.rs - fst_traits::mutable_fst::MutableFst::add_arc (line 149) ... ok
[INFO] [stdout] test src/fst_traits/mutable_fst.rs - fst_traits::mutable_fst::MutableFst::set_final (line 42) ... ok
[INFO] [stdout] test src/fst_traits/mutable_fst.rs - fst_traits::mutable_fst::MutableFst::del_states (line 118) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::add_symbol (line 58) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::contains_label (line 149) ... ok
[INFO] [stdout] test src/fst_traits/mutable_fst.rs - fst_traits::mutable_fst::MutableFst::set_start (line 20) ... ok
[INFO] [stdout] test src/lib.rs -  (line 33) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::contains_symbol (line 135) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::get_symbol (line 119) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::get_label (line 102) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::labels (line 172) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::new (line 35) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::symbols (line 188) ... ok
[INFO] [stdout] test src/symbol_table.rs - symbol_table::SymbolTable::len (line 87) ... ok
[INFO] [stdout] test src/symbol_table.rs - symt (line 268) ... ok
[INFO] [stdout] test src/utils/labels_to_fst.rs - fst (line 148) ... ok
[INFO] [stdout] test src/utils/fst_to_labels.rs - utils::fst_to_labels::decode_linear_fst (line 12) ... ok
[INFO] [stdout] test src/utils/labels_to_fst.rs - fst (line 167) ... ok
[INFO] [stdout] test src/utils/labels_to_fst.rs - fst (line 186) ... ok
[INFO] [stdout] test src/utils/labels_to_fst.rs - fst (line 205) ... ok
[INFO] [stdout] test src/utils/labels_to_fst.rs - utils::labels_to_fst::transducer (line 13) ... ok
[INFO] [stdout] test src/utils/labels_to_fst.rs - utils::labels_to_fst::acceptor (line 83) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 50 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "cd7ec4fcb9a029e0b7457b1d50ca0088f42939d203ec4853b6dfadca9f8253cb"`
[INFO] running `"docker" "rm" "-f" "cd7ec4fcb9a029e0b7457b1d50ca0088f42939d203ec4853b6dfadca9f8253cb"`
[INFO] [stdout] cd7ec4fcb9a029e0b7457b1d50ca0088f42939d203ec4853b6dfadca9f8253cb