[INFO] cloning repository https://github.com/WiredSound/tilang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WiredSound/tilang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWiredSound%2Ftilang"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWiredSound%2Ftilang'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2832c8793e822a2f5a18fdbd4919c01df399d5b9
[INFO] testing WiredSound/tilang against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWiredSound%2Ftilang" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WiredSound/tilang on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/WiredSound/tilang
[INFO] finished tweaking git repo https://github.com/WiredSound/tilang
[INFO] tweaked toml for git repo https://github.com/WiredSound/tilang written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/WiredSound/tilang already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded char_stream v0.1.8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0ac47b54e5e5cb900395807ecd3d39e5147b09d800bb122e1eb1e2b666827182
[INFO] running `"docker" "start" "-a" "0ac47b54e5e5cb900395807ecd3d39e5147b09d800bb122e1eb1e2b666827182"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling char_stream v0.1.8
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling tilang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `syntax_tree`
[INFO] [stderr]   --> src/main.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let syntax_tree = parsing::parser::input(tokens);
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syntax_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `tokens`
[INFO] [stderr]   --> src/parsing/parser.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     tokens: Peekable<T>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `match_token_types`
[INFO] [stderr]   --> src/parsing/parser.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn match_token_types(&mut self, any_of: &[lexer::TokenType]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expression`
[INFO] [stderr]  --> src/parsing/mod.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Expression {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.09s
[INFO] running `"docker" "inspect" "0ac47b54e5e5cb900395807ecd3d39e5147b09d800bb122e1eb1e2b666827182"`
[INFO] running `"docker" "rm" "-f" "0ac47b54e5e5cb900395807ecd3d39e5147b09d800bb122e1eb1e2b666827182"`
[INFO] [stdout] 0ac47b54e5e5cb900395807ecd3d39e5147b09d800bb122e1eb1e2b666827182
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9fdccd61250a487f6b67aaa3d8f1dbd63a30a4725ab03a82a230e313b49366da
[INFO] running `"docker" "start" "-a" "9fdccd61250a487f6b67aaa3d8f1dbd63a30a4725ab03a82a230e313b49366da"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tilang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `syntax_tree`
[INFO] [stderr]   --> src/main.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let syntax_tree = parsing::parser::input(tokens);
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syntax_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expression`
[INFO] [stderr]  --> src/parsing/mod.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Expression {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `"docker" "inspect" "9fdccd61250a487f6b67aaa3d8f1dbd63a30a4725ab03a82a230e313b49366da"`
[INFO] running `"docker" "rm" "-f" "9fdccd61250a487f6b67aaa3d8f1dbd63a30a4725ab03a82a230e313b49366da"`
[INFO] [stdout] 9fdccd61250a487f6b67aaa3d8f1dbd63a30a4725ab03a82a230e313b49366da
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bc85a15715f3e7b2d8057e9dd3f77c3ef12bcd176ca57f581f8525db9ffba243
[INFO] running `"docker" "start" "-a" "bc85a15715f3e7b2d8057e9dd3f77c3ef12bcd176ca57f581f8525db9ffba243"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `syntax_tree`
[INFO] [stderr]   --> src/main.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let syntax_tree = parsing::parser::input(tokens);
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syntax_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expression`
[INFO] [stderr]  --> src/parsing/mod.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Expression {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tilang-5f2da7f6e1522fc1
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test lexing::lexer::tests::test_string_literals ... ok
[INFO] [stdout] test lexing::lexer::tests::test_other_tokens ... ok
[INFO] [stdout] test lexing::lexer::tests::test_equals_and_double_equals ... ok
[INFO] [stdout] test lexing::lexer::tests::test_number_literals ... ok
[INFO] [stdout] test lexing::lexer::tests::test_char_literals ... ok
[INFO] [stdout] test lexing::lexer::tests::test_lexing_errors ... ok
[INFO] [stdout] test parsing::parser::tests::test_token_type_matching ... ok
[INFO] [stdout] test lexing::lexer::tests::test_minus_and_arrow ... ok
[INFO] [stdout] test stream::tests::test_position_tracking ... ok
[INFO] [stdout] test lexing::lexer::tests::test_identifiers ... ok
[INFO] [stdout] test lexing::lexer::tests::test_ignored_characters ... ok
[INFO] [stdout] test lexing::lexer::tests::test_keywords ... ok
[INFO] [stdout] test lexing::lexer::tests::test_indentation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bc85a15715f3e7b2d8057e9dd3f77c3ef12bcd176ca57f581f8525db9ffba243"`
[INFO] running `"docker" "rm" "-f" "bc85a15715f3e7b2d8057e9dd3f77c3ef12bcd176ca57f581f8525db9ffba243"`
[INFO] [stdout] bc85a15715f3e7b2d8057e9dd3f77c3ef12bcd176ca57f581f8525db9ffba243