[INFO] updating cached repository tiffany352/tifflang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tiffany352/tifflang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tiffany352/tifflang" "work/ex/beta-1.37-6/sources/1.36.0/gh/tiffany352/tifflang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/tiffany352/tifflang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tiffany352/tifflang" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tiffany352/tifflang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tiffany352/tifflang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 61df2ad44a8e3c930f1913562be669d5f30cfe90
[INFO] sha for GitHub repo tiffany352/tifflang: 61df2ad44a8e3c930f1913562be669d5f30cfe90
[INFO] validating manifest of tiffany352/tifflang 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 tiffany352/tifflang 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 tiffany352/tifflang
[INFO] finished frobbing tiffany352/tifflang
[INFO] frobbed toml for tiffany352/tifflang written to work/ex/beta-1.37-6/sources/1.36.0/gh/tiffany352/tifflang/Cargo.toml
[INFO] started frobbing tiffany352/tifflang
[INFO] finished frobbing tiffany352/tifflang
[INFO] frobbed toml for tiffany352/tifflang written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tiffany352/tifflang/Cargo.toml
[INFO] crate tiffany352/tifflang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tiffany352/tifflang 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-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tiffany352/tifflang:/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] c2aedcf6dc71cd87cb508262bcafe02ff50b99b52fe89cd39bbd62eeddc6d9b1
[INFO] running `"docker" "start" "-a" "c2aedcf6dc71cd87cb508262bcafe02ff50b99b52fe89cd39bbd62eeddc6d9b1"`
[INFO] [stderr]    Compiling web-assembler v0.1.0
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling tifflang v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:7:39
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type TokenIterator = Peekable<Box<Iterator<Item=Span<Token>>>>;
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[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/main.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let iter: Box<Iterator<Item=Span<Token>>> = Box::new(tokens.into_iter());
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/typecheck.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     Function {
[INFO] [stderr] 47 | |         result: Box<Type>,
[INFO] [stderr] 48 | |         args: Vec<Type>,
[INFO] [stderr] 49 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.63s
[INFO] running `"docker" "inspect" "c2aedcf6dc71cd87cb508262bcafe02ff50b99b52fe89cd39bbd62eeddc6d9b1"`
[INFO] running `"docker" "rm" "-f" "c2aedcf6dc71cd87cb508262bcafe02ff50b99b52fe89cd39bbd62eeddc6d9b1"`
[INFO] [stdout] c2aedcf6dc71cd87cb508262bcafe02ff50b99b52fe89cd39bbd62eeddc6d9b1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tiffany352/tifflang:/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] 03ff8aa8df0f1f41548f0dededbbbe57a45cd93cd85b2c68de414b9628fdf6a0
[INFO] running `"docker" "start" "-a" "03ff8aa8df0f1f41548f0dededbbbe57a45cd93cd85b2c68de414b9628fdf6a0"`
[INFO] [stderr]    Compiling tifflang v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:7:39
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type TokenIterator = Peekable<Box<Iterator<Item=Span<Token>>>>;
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[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/main.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let iter: Box<Iterator<Item=Span<Token>>> = Box::new(tokens.into_iter());
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/typecheck.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     Function {
[INFO] [stderr] 47 | |         result: Box<Type>,
[INFO] [stderr] 48 | |         args: Vec<Type>,
[INFO] [stderr] 49 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "03ff8aa8df0f1f41548f0dededbbbe57a45cd93cd85b2c68de414b9628fdf6a0"`
[INFO] running `"docker" "rm" "-f" "03ff8aa8df0f1f41548f0dededbbbe57a45cd93cd85b2c68de414b9628fdf6a0"`
[INFO] [stdout] 03ff8aa8df0f1f41548f0dededbbbe57a45cd93cd85b2c68de414b9628fdf6a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tiffany352/tifflang:/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] 75b000459953589de23bb42a713561ca42c27fc0ef98f9e5ed7b5b24ca19bf13
[INFO] running `"docker" "start" "-a" "75b000459953589de23bb42a713561ca42c27fc0ef98f9e5ed7b5b24ca19bf13"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tifflang-4dd71c06ffce3865
[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" "75b000459953589de23bb42a713561ca42c27fc0ef98f9e5ed7b5b24ca19bf13"`
[INFO] running `"docker" "rm" "-f" "75b000459953589de23bb42a713561ca42c27fc0ef98f9e5ed7b5b24ca19bf13"`
[INFO] [stdout] 75b000459953589de23bb42a713561ca42c27fc0ef98f9e5ed7b5b24ca19bf13