[INFO] fetching crate scdlang_xstate 0.2.1...
[INFO] extracting crate scdlang_xstate 0.2.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/scdlang_xstate/0.2.1
[INFO] extracting crate scdlang_xstate 0.2.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/scdlang_xstate/0.2.1
[INFO] validating manifest of scdlang_xstate-0.2.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of scdlang_xstate-0.2.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing scdlang_xstate-0.2.1
[INFO] finished frobbing scdlang_xstate-0.2.1
[INFO] frobbed toml for scdlang_xstate-0.2.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/scdlang_xstate/0.2.1/Cargo.toml
[INFO] started frobbing scdlang_xstate-0.2.1
[INFO] finished frobbing scdlang_xstate-0.2.1
[INFO] frobbed toml for scdlang_xstate-0.2.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/scdlang_xstate/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded voca_rs v1.8.0
[INFO] [stderr]   Downloaded scdlang v0.2.1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing scdlang_xstate-0.2.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/scdlang_xstate/0.2.1:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] ec73b0c12105fa4eda9e5d924e9630dd21165f774c0206b6b339add7b7722039
[INFO] running `"docker" "start" "-a" "ec73b0c12105fa4eda9e5d924e9630dd21165f774c0206b6b339add7b7722039"`
[INFO] [stderr]    Compiling unidecode v0.3.0
[INFO] [stderr]    Compiling html5ever v0.21.0
[INFO] [stderr]    Compiling stfu8 v0.2.4
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.6.2
[INFO] [stderr]    Compiling scdlang v0.2.1
[INFO] [stderr]    Compiling dissolve v0.2.2
[INFO] [stderr]    Compiling voca_rs v1.8.0
[INFO] [stderr]    Compiling scdlang_xstate v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/machine/mod.rs:33:34
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn configure(&mut self) -> &mut Builder<'a> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Builder<'a>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.28s
[INFO] running `"docker" "inspect" "ec73b0c12105fa4eda9e5d924e9630dd21165f774c0206b6b339add7b7722039"`
[INFO] running `"docker" "rm" "-f" "ec73b0c12105fa4eda9e5d924e9630dd21165f774c0206b6b339add7b7722039"`
[INFO] [stdout] ec73b0c12105fa4eda9e5d924e9630dd21165f774c0206b6b339add7b7722039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/scdlang_xstate/0.2.1:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] defec7ed5c625722c7b25ae75e4c87d25d090b03484edfd93e2ff44328873803
[INFO] running `"docker" "start" "-a" "defec7ed5c625722c7b25ae75e4c87d25d090b03484edfd93e2ff44328873803"`
[INFO] [stderr]    Compiling assert-json-diff v1.0.0
[INFO] [stderr]    Compiling scdlang_xstate v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/machine/mod.rs:33:34
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn configure(&mut self) -> &mut Builder<'a> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Builder<'a>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.65s
[INFO] running `"docker" "inspect" "defec7ed5c625722c7b25ae75e4c87d25d090b03484edfd93e2ff44328873803"`
[INFO] running `"docker" "rm" "-f" "defec7ed5c625722c7b25ae75e4c87d25d090b03484edfd93e2ff44328873803"`
[INFO] [stdout] defec7ed5c625722c7b25ae75e4c87d25d090b03484edfd93e2ff44328873803
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/scdlang_xstate/0.2.1:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 1ee46720ba98d3a58cb84f21f4eb14927b3521b2d2abd2c9e5b41a2ff26670eb
[INFO] running `"docker" "start" "-a" "1ee46720ba98d3a58cb84f21f4eb14927b3521b2d2abd2c9e5b41a2ff26670eb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/scdlang_xstate-1d783619def9475c
[INFO] [stdout] test machine::test::eventful_transition ... ok
[INFO] [stderr]    Doc-tests scdlang_xstate
[INFO] [stdout] test machine::test::clear_cache ... ok
[INFO] [stdout] test machine::test::transient_transition ... ok
[INFO] [stdout] test machine::test::no_clear_cache ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/machine/mod.rs - machine::Machine (line 15) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/machine/mod.rs - machine::Machine (line 15) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Machine`
[INFO] [stdout]  --> src/machine/mod.rs:16:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | let xstate = Machine::new();
[INFO] [stdout]   |              ^^^^^^^ use of undeclared type or module `Machine`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `parser` in this scope
[INFO] [stdout]  --> src/machine/mod.rs:19:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | parser.parse("A -> B")?;
[INFO] [stdout]   | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `parser` in this scope
[INFO] [stdout]  --> src/machine/mod.rs:21:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | println!("{}", parser.to_string());
[INFO] [stdout]   |                ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]  --> src/machine/mod.rs:19:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | parser.parse("A -> B")?;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/machine/mod.rs - machine::Machine (line 15)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "1ee46720ba98d3a58cb84f21f4eb14927b3521b2d2abd2c9e5b41a2ff26670eb"`
[INFO] running `"docker" "rm" "-f" "1ee46720ba98d3a58cb84f21f4eb14927b3521b2d2abd2c9e5b41a2ff26670eb"`
[INFO] [stdout] 1ee46720ba98d3a58cb84f21f4eb14927b3521b2d2abd2c9e5b41a2ff26670eb