[INFO] updating cached repository dotjpg3141/simple_lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dotjpg3141/simple_lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dotjpg3141/simple_lang" "work/ex/beta-1.38-1/sources/1.37.0/gh/dotjpg3141/simple_lang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dotjpg3141/simple_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dotjpg3141/simple_lang" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dotjpg3141/simple_lang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dotjpg3141/simple_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfae46d61aaab41cf530750af2c332cf297a86fb
[INFO] sha for GitHub repo dotjpg3141/simple_lang: cfae46d61aaab41cf530750af2c332cf297a86fb
[INFO] validating manifest of dotjpg3141/simple_lang 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 dotjpg3141/simple_lang 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 dotjpg3141/simple_lang
[INFO] finished frobbing dotjpg3141/simple_lang
[INFO] frobbed toml for dotjpg3141/simple_lang written to work/ex/beta-1.38-1/sources/1.37.0/gh/dotjpg3141/simple_lang/Cargo.toml
[INFO] started frobbing dotjpg3141/simple_lang
[INFO] finished frobbing dotjpg3141/simple_lang
[INFO] frobbed toml for dotjpg3141/simple_lang written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dotjpg3141/simple_lang/Cargo.toml
[INFO] crate dotjpg3141/simple_lang 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 dotjpg3141/simple_lang 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dotjpg3141/simple_lang:/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] ad34d796b864b0ac3013cab07f18fc570cfa3e496852a66886b7d0173bfd8ac4
[INFO] running `"docker" "start" "-a" "ad34d796b864b0ac3013cab07f18fc570cfa3e496852a66886b7d0173bfd8ac4"`
[INFO] [stderr]    Compiling simple_lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_slice`
[INFO] [stderr]   --> src/simplelang/indexed_slice.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn from_slice(slice: &'a [T]) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_range`
[INFO] [stderr]   --> src/simplelang/mod.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn at_range<T>(start: TextPosition, end: TextPosition, message: String) -> SyntaxResult<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `"docker" "inspect" "ad34d796b864b0ac3013cab07f18fc570cfa3e496852a66886b7d0173bfd8ac4"`
[INFO] running `"docker" "rm" "-f" "ad34d796b864b0ac3013cab07f18fc570cfa3e496852a66886b7d0173bfd8ac4"`
[INFO] [stdout] ad34d796b864b0ac3013cab07f18fc570cfa3e496852a66886b7d0173bfd8ac4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dotjpg3141/simple_lang:/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] 1a0adbde5d4aec0d80517c88617ac0f8a510220b7e4f32ff5b9c69fbea2401c7
[INFO] running `"docker" "start" "-a" "1a0adbde5d4aec0d80517c88617ac0f8a510220b7e4f32ff5b9c69fbea2401c7"`
[INFO] [stderr]    Compiling simple_lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_range`
[INFO] [stderr]   --> src/simplelang/mod.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn at_range<T>(start: TextPosition, end: TextPosition, message: String) -> SyntaxResult<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `"docker" "inspect" "1a0adbde5d4aec0d80517c88617ac0f8a510220b7e4f32ff5b9c69fbea2401c7"`
[INFO] running `"docker" "rm" "-f" "1a0adbde5d4aec0d80517c88617ac0f8a510220b7e4f32ff5b9c69fbea2401c7"`
[INFO] [stdout] 1a0adbde5d4aec0d80517c88617ac0f8a510220b7e4f32ff5b9c69fbea2401c7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dotjpg3141/simple_lang:/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] 28fb56bea4da881668f2b51fde89e23b49d4e404c0476b16d0105162a4d5b6a9
[INFO] running `"docker" "start" "-a" "28fb56bea4da881668f2b51fde89e23b49d4e404c0476b16d0105162a4d5b6a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simple_lang-6228bb8dc86ff5c1
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::indexed_slice::basic_slice ... ok
[INFO] [stdout] test tests::indexed_slice::slice_first ... ok
[INFO] [stdout] test tests::lexer::empty ... ok
[INFO] [stdout] test tests::lexer::op_tokens ... ok
[INFO] [stdout] test tests::indexed_slice::slice_range_to ... ok
[INFO] [stdout] test tests::indexed_slice::slice_range_full ... ok
[INFO] [stdout] test tests::indexed_slice::slice_range_from ... ok
[INFO] [stdout] test tests::indexed_slice::slice_range ... ok
[INFO] [stdout] test tests::lexer::tokens ... ok
[INFO] [stdout] test tests::indexed_slice::slice_pop_first ... ok
[INFO] [stdout] test tests::lexer::whitespace ... ok
[INFO] [stdout] test tests::parser::expr_binary ... ok
[INFO] [stdout] test tests::parser::expr_binary_associativity ... ok
[INFO] [stdout] test tests::parser::expr_binary_precendence ... ok
[INFO] [stdout] test tests::parser::expr_integer ... ok
[INFO] [stdout] test tests::parser::expr_parenthesis ... ok
[INFO] [stdout] test tests::parser::expr_string ... ok
[INFO] [stdout] test tests::parser::expr_unary_postfix ... ok
[INFO] [stdout] test tests::parser::expr_unary_prefix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "28fb56bea4da881668f2b51fde89e23b49d4e404c0476b16d0105162a4d5b6a9"`
[INFO] running `"docker" "rm" "-f" "28fb56bea4da881668f2b51fde89e23b49d4e404c0476b16d0105162a4d5b6a9"`
[INFO] [stdout] 28fb56bea4da881668f2b51fde89e23b49d4e404c0476b16d0105162a4d5b6a9