[INFO] crate kravl-parser 0.3.3 is already in cache
[INFO] extracting crate kravl-parser 0.3.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/kravl-parser/0.3.3
[INFO] extracting crate kravl-parser 0.3.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/kravl-parser/0.3.3
[INFO] validating manifest of kravl-parser-0.3.3 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 kravl-parser-0.3.3 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 kravl-parser-0.3.3
[INFO] finished frobbing kravl-parser-0.3.3
[INFO] frobbed toml for kravl-parser-0.3.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/kravl-parser/0.3.3/Cargo.toml
[INFO] started frobbing kravl-parser-0.3.3
[INFO] finished frobbing kravl-parser-0.3.3
[INFO] frobbed toml for kravl-parser-0.3.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/kravl-parser/0.3.3/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kravl-parser-0.3.3 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/kravl-parser/0.3.3:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] adb2e7fa8fa5352b5f4389be932a19f7c7723142c15287a370d7eb948437ae7b
[INFO] running `"docker" "start" "-a" "adb2e7fa8fa5352b5f4389be932a19f7c7723142c15287a370d7eb948437ae7b"`
[INFO] [stderr]    Compiling kravl-parser v0.3.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "adb2e7fa8fa5352b5f4389be932a19f7c7723142c15287a370d7eb948437ae7b"`
[INFO] running `"docker" "rm" "-f" "adb2e7fa8fa5352b5f4389be932a19f7c7723142c15287a370d7eb948437ae7b"`
[INFO] [stdout] adb2e7fa8fa5352b5f4389be932a19f7c7723142c15287a370d7eb948437ae7b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/kravl-parser/0.3.3:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ab4c2ec96e84e6ec411f4680c191a9499bc7c6c59b5d429cd5330f4dc3de52c1
[INFO] running `"docker" "start" "-a" "ab4c2ec96e84e6ec411f4680c191a9499bc7c6c59b5d429cd5330f4dc3de52c1"`
[INFO] [stderr]    Compiling kravl-parser v0.3.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]   --> src/syntax/mod.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let stack = parser.parse_full();
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_stack`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/syntax/mod.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | /         lexer.tokenize(String::from("
[INFO] [stderr] 14 | |             define fib_sum(a -> int, b -> int) -> int
[INFO] [stderr] 15 | |                 if a + b <= 2
[INFO] [stderr] 16 | |                     return c
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |             end
[INFO] [stderr] 21 | |         "));
[INFO] [stderr]    | |____________^
[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] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/syntax/mod.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 | /         lexer.tokenize(String::from("
[INFO] [stderr] 34 | |             foo = \"hey aywa\"
[INFO] [stderr] 35 | |             foo = 22.2
[INFO] [stderr] 36 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |             sum = 1337 - 2 - 10.2 * 100
[INFO] [stderr] 42 | |         "));
[INFO] [stderr]    | |____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "ab4c2ec96e84e6ec411f4680c191a9499bc7c6c59b5d429cd5330f4dc3de52c1"`
[INFO] running `"docker" "rm" "-f" "ab4c2ec96e84e6ec411f4680c191a9499bc7c6c59b5d429cd5330f4dc3de52c1"`
[INFO] [stdout] ab4c2ec96e84e6ec411f4680c191a9499bc7c6c59b5d429cd5330f4dc3de52c1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/kravl-parser/0.3.3:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 2734daa92c03b91ee3de02249f7eb39ff747ba97c087ab065d8f6028b2c4a99c
[INFO] running `"docker" "start" "-a" "2734daa92c03b91ee3de02249f7eb39ff747ba97c087ab065d8f6028b2c4a99c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kravl_parser-2a5fc61795bf1b43
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kravl_parser
[INFO] [stdout] running 2 tests
[INFO] [stdout] test syntax::tests::parser_tokenize ... ok
[INFO] [stdout] test syntax::tests::lexer_tokenize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2734daa92c03b91ee3de02249f7eb39ff747ba97c087ab065d8f6028b2c4a99c"`
[INFO] running `"docker" "rm" "-f" "2734daa92c03b91ee3de02249f7eb39ff747ba97c087ab065d8f6028b2c4a99c"`
[INFO] [stdout] 2734daa92c03b91ee3de02249f7eb39ff747ba97c087ab065d8f6028b2c4a99c