[INFO] updating cached repository JerTH/Violet
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JerTH/Violet
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JerTH/Violet" "work/ex/beta-1.38-1/sources/1.37.0/gh/JerTH/Violet"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JerTH/Violet'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JerTH/Violet" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JerTH/Violet"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JerTH/Violet'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6fa3b0f6f763f272c3c7cf8c8419e07bb17103b7
[INFO] sha for GitHub repo JerTH/Violet: 6fa3b0f6f763f272c3c7cf8c8419e07bb17103b7
[INFO] validating manifest of JerTH/Violet 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 JerTH/Violet 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 JerTH/Violet
[INFO] finished frobbing JerTH/Violet
[INFO] frobbed toml for JerTH/Violet written to work/ex/beta-1.38-1/sources/1.37.0/gh/JerTH/Violet/Cargo.toml
[INFO] started frobbing JerTH/Violet
[INFO] finished frobbing JerTH/Violet
[INFO] frobbed toml for JerTH/Violet written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JerTH/Violet/Cargo.toml
[INFO] crate JerTH/Violet 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 JerTH/Violet against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JerTH/Violet:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 671979fd8f76d5b028da401d23964f8f5e2bf68fa4a334d92f2ca10e6ff1e67b
[INFO] running `"docker" "start" "-a" "671979fd8f76d5b028da401d23964f8f5e2bf68fa4a334d92f2ca10e6ff1e67b"`
[INFO] [stderr]    Compiling violet v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `ast`
[INFO] [stderr]   --> src/parser.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     ast: VtAst,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `op_stack`
[INFO] [stderr]   --> src/parser.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     op_stack: VecDeque<VtToken>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_expr`
[INFO] [stderr]    --> src/parser.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | fn parse_expr(state: &mut VtParser) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `violet::parser::*`
[INFO] [stderr]  --> src/bin/violet.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use violet::parser::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `"docker" "inspect" "671979fd8f76d5b028da401d23964f8f5e2bf68fa4a334d92f2ca10e6ff1e67b"`
[INFO] running `"docker" "rm" "-f" "671979fd8f76d5b028da401d23964f8f5e2bf68fa4a334d92f2ca10e6ff1e67b"`
[INFO] [stdout] 671979fd8f76d5b028da401d23964f8f5e2bf68fa4a334d92f2ca10e6ff1e67b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JerTH/Violet:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 302571edc03f7b21ec5d079be5ed0e1e6deb8eeea5cc720552931463b982e916
[INFO] running `"docker" "start" "-a" "302571edc03f7b21ec5d079be5ed0e1e6deb8eeea5cc720552931463b982e916"`
[INFO] [stderr]    Compiling violet v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `violet::parser::*`
[INFO] [stderr]  --> src/bin/violet.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use violet::parser::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `ast`
[INFO] [stderr]   --> src/parser.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     ast: VtAst,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `op_stack`
[INFO] [stderr]   --> src/parser.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     op_stack: VecDeque<VtToken>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_expr`
[INFO] [stderr]    --> src/parser.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | fn parse_expr(state: &mut VtParser) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `"docker" "inspect" "302571edc03f7b21ec5d079be5ed0e1e6deb8eeea5cc720552931463b982e916"`
[INFO] running `"docker" "rm" "-f" "302571edc03f7b21ec5d079be5ed0e1e6deb8eeea5cc720552931463b982e916"`
[INFO] [stdout] 302571edc03f7b21ec5d079be5ed0e1e6deb8eeea5cc720552931463b982e916
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JerTH/Violet:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 159f206dfb69beb68540e87de5b64c39f33b7fc8fb8d22297bdd2699716a3eee
[INFO] running `"docker" "start" "-a" "159f206dfb69beb68540e87de5b64c39f33b7fc8fb8d22297bdd2699716a3eee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/violet-e163bf05fd4e3185
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::lexer_tests::lex_char_literal ... ok
[INFO] [stdout] test tests::lexer_tests::lex_empty_source ... ok
[INFO] [stdout] test tests::lexer_tests::lex_floats ... ok
[INFO] [stdout] test tests::lexer_tests::lex_keywords ... ok
[INFO] [stdout] test tests::lexer_tests::lex_loop_source ... ok
[INFO] [stdout] test tests::lexer_tests::lex_mixed_numbers ... ok
[INFO] [stdout] test tests::lexer_tests::lex_single_integer ... ok
[INFO] [stdout] test tests::lexer_tests::lex_string_literal ... ok
[INFO] [stdout] test tests::lexer_tests::lex_complex_source ... ok
[INFO] [stdout] test tests::parser_tests::node_handle_deref ... ok
[INFO] [stdout] test tests::lexer_tests::lex_simple_source ... ok
[INFO] [stdout] test tests::parser_tests::manually_construct_simple_tree ... ok
[INFO] [stdout] test tests::parser_tests::node_handle_ref_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/violet-50c4a9bc590cb4d2
[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] [stderr]    Doc-tests violet
[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" "159f206dfb69beb68540e87de5b64c39f33b7fc8fb8d22297bdd2699716a3eee"`
[INFO] running `"docker" "rm" "-f" "159f206dfb69beb68540e87de5b64c39f33b7fc8fb8d22297bdd2699716a3eee"`
[INFO] [stdout] 159f206dfb69beb68540e87de5b64c39f33b7fc8fb8d22297bdd2699716a3eee