[INFO] updating cached repository jmatta697/matta_bc [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/jmatta697/matta_bc [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/jmatta697/matta_bc" "work/ex/beta-1.38-1/sources/1.37.0/gh/jmatta697/matta_bc"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jmatta697/matta_bc'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/jmatta697/matta_bc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jmatta697/matta_bc"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jmatta697/matta_bc'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3ead6621c2c413d844175868839063592f32468c [INFO] sha for GitHub repo jmatta697/matta_bc: 3ead6621c2c413d844175868839063592f32468c [INFO] validating manifest of jmatta697/matta_bc 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 jmatta697/matta_bc 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 jmatta697/matta_bc [INFO] finished frobbing jmatta697/matta_bc [INFO] frobbed toml for jmatta697/matta_bc written to work/ex/beta-1.38-1/sources/1.37.0/gh/jmatta697/matta_bc/Cargo.toml [INFO] started frobbing jmatta697/matta_bc [INFO] finished frobbing jmatta697/matta_bc [INFO] frobbed toml for jmatta697/matta_bc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jmatta697/matta_bc/Cargo.toml [INFO] crate jmatta697/matta_bc 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 jmatta697/matta_bc 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jmatta697/matta_bc:/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] c04582082a62876e6553db5ae419b8352e4263366c4495b7a0e7a38071204713 [INFO] running `"docker" "start" "-a" "c04582082a62876e6553db5ae419b8352e4263366c4495b7a0e7a38071204713"` [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Compiling aho-corasick v0.6.9 [INFO] [stderr] Compiling regex v1.0.6 [INFO] [stderr] Compiling matta_bc v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: value assigned to `variable_value_str` is never read [INFO] [stderr] --> src/main.rs:424:13 [INFO] [stderr] | [INFO] [stderr] 424 | let mut variable_value_str = String::new(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.03s [INFO] running `"docker" "inspect" "c04582082a62876e6553db5ae419b8352e4263366c4495b7a0e7a38071204713"` [INFO] running `"docker" "rm" "-f" "c04582082a62876e6553db5ae419b8352e4263366c4495b7a0e7a38071204713"` [INFO] [stdout] c04582082a62876e6553db5ae419b8352e4263366c4495b7a0e7a38071204713 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jmatta697/matta_bc:/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] cfd196aa1b2725016fe9dc6f845ae5df8f1d101dd2ed552c30f6da410f8c0dfa [INFO] running `"docker" "start" "-a" "cfd196aa1b2725016fe9dc6f845ae5df8f1d101dd2ed552c30f6da410f8c0dfa"` [INFO] [stderr] Compiling matta_bc v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: value assigned to `variable_value_str` is never read [INFO] [stderr] --> src/main.rs:424:13 [INFO] [stderr] | [INFO] [stderr] 424 | let mut variable_value_str = String::new(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.23s [INFO] running `"docker" "inspect" "cfd196aa1b2725016fe9dc6f845ae5df8f1d101dd2ed552c30f6da410f8c0dfa"` [INFO] running `"docker" "rm" "-f" "cfd196aa1b2725016fe9dc6f845ae5df8f1d101dd2ed552c30f6da410f8c0dfa"` [INFO] [stdout] cfd196aa1b2725016fe9dc6f845ae5df8f1d101dd2ed552c30f6da410f8c0dfa [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jmatta697/matta_bc:/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] 7272c4bd5f08b2f84cd2e5561b6985f6d65f313eccd5a656d648e3f844b0807e [INFO] running `"docker" "start" "-a" "7272c4bd5f08b2f84cd2e5561b6985f6d65f313eccd5a656d648e3f844b0807e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/crater/target/debug/deps/matta_bc-5b0b37c40fb234ea [INFO] [stdout] [INFO] [stdout] running 20 tests [INFO] [stdout] test test_apply_operation ... ok [INFO] [stdout] test test_count_valid_parentheses ... ok [INFO] [stdout] test test_check_last_char ... ok [INFO] [stdout] test test_check_first_char_in_exp ... ok [INFO] [stdout] test test_check_expr_syntax ... ok [INFO] [stdout] test test_check_only_valid_chars ... ok [INFO] [stdout] test test_is_a_variable_assignment ... ok [INFO] [stdout] test test_handle_variable_declaration ... ok [INFO] [stdout] test test_evaluate_clean_expression ... ok [INFO] [stdout] test test_extract_comparison_notation ... ok [INFO] [stdout] test test_evaluate_comparison_expression ... ok [INFO] [stdout] test test_expression_string_to_vector ... ok [INFO] [stdout] test test_handle_comparison_expression ... ok [INFO] [stdout] test test_operator_precedence ... ok [INFO] [stdout] test test_get_variable_value ... ok [INFO] [stdout] test test_split_comparison_string ... ok [INFO] [stdout] test test_replace_variable_references_with_value_strings ... ok [INFO] [stdout] test test_remove_all_white_space_from_string ... ok [INFO] [stdout] test test_string_has_comparison ... ok [INFO] [stdout] test test_valid_expression_str ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "7272c4bd5f08b2f84cd2e5561b6985f6d65f313eccd5a656d648e3f844b0807e"` [INFO] running `"docker" "rm" "-f" "7272c4bd5f08b2f84cd2e5561b6985f6d65f313eccd5a656d648e3f844b0807e"` [INFO] [stdout] 7272c4bd5f08b2f84cd2e5561b6985f6d65f313eccd5a656d648e3f844b0807e