[INFO] updating cached repository mdenchev/langlang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mdenchev/langlang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mdenchev/langlang" "work/ex/beta-1.38-1/sources/1.37.0/gh/mdenchev/langlang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mdenchev/langlang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mdenchev/langlang" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mdenchev/langlang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mdenchev/langlang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f9caa02da4af1c77ccca047b8bc77e71a553104f
[INFO] sha for GitHub repo mdenchev/langlang: f9caa02da4af1c77ccca047b8bc77e71a553104f
[INFO] validating manifest of mdenchev/langlang 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 mdenchev/langlang 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 mdenchev/langlang
[INFO] finished frobbing mdenchev/langlang
[INFO] frobbed toml for mdenchev/langlang written to work/ex/beta-1.38-1/sources/1.37.0/gh/mdenchev/langlang/Cargo.toml
[INFO] started frobbing mdenchev/langlang
[INFO] finished frobbing mdenchev/langlang
[INFO] frobbed toml for mdenchev/langlang written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mdenchev/langlang/Cargo.toml
[INFO] crate mdenchev/langlang already has a lockfile, it will not be regenerated
[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 mdenchev/langlang 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/gh/mdenchev/langlang:/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] 40017a0ed743edd31039675ce0afd99aedf59f7d79ba24618c6d1d0a09fd5eb1
[INFO] running `"docker" "start" "-a" "40017a0ed743edd31039675ce0afd99aedf59f7d79ba24618c6d1d0a09fd5eb1"`
[INFO] [stderr]    Compiling langlang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn get_numeric(chars: &mut Iterator<Item=char>) -> Token {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[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/lexer.rs:18:31
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn get_identifier(chars: &mut Iterator<Item=char>) -> Token {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn get_comment(chars: &mut Iterator<Item=char>) -> Token {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "40017a0ed743edd31039675ce0afd99aedf59f7d79ba24618c6d1d0a09fd5eb1"`
[INFO] running `"docker" "rm" "-f" "40017a0ed743edd31039675ce0afd99aedf59f7d79ba24618c6d1d0a09fd5eb1"`
[INFO] [stdout] 40017a0ed743edd31039675ce0afd99aedf59f7d79ba24618c6d1d0a09fd5eb1
[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/gh/mdenchev/langlang:/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] ccde0b6a202f92e9eebbe4524010a4e858b6e6bf40327ed7afbf55896b4107c6
[INFO] running `"docker" "start" "-a" "ccde0b6a202f92e9eebbe4524010a4e858b6e6bf40327ed7afbf55896b4107c6"`
[INFO] [stderr]    Compiling langlang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn get_numeric(chars: &mut Iterator<Item=char>) -> Token {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[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/lexer.rs:18:31
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn get_identifier(chars: &mut Iterator<Item=char>) -> Token {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn get_comment(chars: &mut Iterator<Item=char>) -> Token {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `"docker" "inspect" "ccde0b6a202f92e9eebbe4524010a4e858b6e6bf40327ed7afbf55896b4107c6"`
[INFO] running `"docker" "rm" "-f" "ccde0b6a202f92e9eebbe4524010a4e858b6e6bf40327ed7afbf55896b4107c6"`
[INFO] [stdout] ccde0b6a202f92e9eebbe4524010a4e858b6e6bf40327ed7afbf55896b4107c6
[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/gh/mdenchev/langlang:/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] e3e4209eb7c78dde75fa6afa2529a06f9fe35cf8b38191dfbfc43253e0f4a54f
[INFO] running `"docker" "start" "-a" "e3e4209eb7c78dde75fa6afa2529a06f9fe35cf8b38191dfbfc43253e0f4a54f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/langlang-e3a72dee3d71f62b
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test lexer::test::test_def ... ok
[INFO] [stdout] test lexer::test::test_eof ... ok
[INFO] [stdout] test lexer::test::test_comment ... ok
[INFO] [stdout] test lexer::test::test_ident ... ok
[INFO] [stdout] test lexer::test::test_numeric ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/langlang-787809fa489a2173
[INFO] [stderr]    Doc-tests langlang
[INFO] [stdout] test lexer::test::test_numeric_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 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] [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" "e3e4209eb7c78dde75fa6afa2529a06f9fe35cf8b38191dfbfc43253e0f4a54f"`
[INFO] running `"docker" "rm" "-f" "e3e4209eb7c78dde75fa6afa2529a06f9fe35cf8b38191dfbfc43253e0f4a54f"`
[INFO] [stdout] e3e4209eb7c78dde75fa6afa2529a06f9fe35cf8b38191dfbfc43253e0f4a54f