[INFO] cloning repository https://github.com/ben-jl/rusty-lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ben-jl/rusty-lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-jl%2Frusty-lox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-jl%2Frusty-lox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa1443fa9828c9d31421521bbd3a208ae0eea75d
[INFO] testing ben-jl/rusty-lox against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-jl%2Frusty-lox" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ben-jl/rusty-lox on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ben-jl/rusty-lox
[INFO] finished tweaking git repo https://github.com/ben-jl/rusty-lox
[INFO] tweaked toml for git repo https://github.com/ben-jl/rusty-lox written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ben-jl/rusty-lox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdbaecae90e6aea3a9648ee4620a4b0a8b34acd88f8de04e8624c6b4b7f1d542
[INFO] running `Command { std: "docker" "start" "-a" "fdbaecae90e6aea3a9648ee4620a4b0a8b34acd88f8de04e8624c6b4b7f1d542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdbaecae90e6aea3a9648ee4620a4b0a8b34acd88f8de04e8624c6b4b7f1d542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdbaecae90e6aea3a9648ee4620a4b0a8b34acd88f8de04e8624c6b4b7f1d542", kill_on_drop: false }`
[INFO] [stdout] fdbaecae90e6aea3a9648ee4620a4b0a8b34acd88f8de04e8624c6b4b7f1d542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df6913e46079fafbc5b4857b142affcdbed6560e56063a29e3318eec1b7cedff
[INFO] running `Command { std: "docker" "start" "-a" "df6913e46079fafbc5b4857b142affcdbed6560e56063a29e3318eec1b7cedff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling rlox-contract v0.1.0 (/opt/rustwide/workdir/rlox-contract)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rlox-parser v0.1.0 (/opt/rustwide/workdir/rlox-parser)
[INFO] [stderr]    Compiling rlox-scanner v0.1.0 (/opt/rustwide/workdir/rlox-scanner)
[INFO] [stderr]    Compiling rlox-interpreter v0.1.0 (/opt/rustwide/workdir/rlox-interpreter)
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling simplelog v0.10.0
[INFO] [stderr]    Compiling rlox-cli v0.1.0 (/opt/rustwide/workdir/rlox-cli)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.34s
[INFO] running `Command { std: "docker" "inspect" "df6913e46079fafbc5b4857b142affcdbed6560e56063a29e3318eec1b7cedff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df6913e46079fafbc5b4857b142affcdbed6560e56063a29e3318eec1b7cedff", kill_on_drop: false }`
[INFO] [stdout] df6913e46079fafbc5b4857b142affcdbed6560e56063a29e3318eec1b7cedff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 786551aede50320e3ca8cc91708b6c46e696d1e64f99d6c25813757d6ac7e72d
[INFO] running `Command { std: "docker" "start" "-a" "786551aede50320e3ca8cc91708b6c46e696d1e64f99d6c25813757d6ac7e72d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox-contract v0.1.0 (/opt/rustwide/workdir/rlox-contract)
[INFO] [stderr]    Compiling rlox-scanner v0.1.0 (/opt/rustwide/workdir/rlox-scanner)
[INFO] [stderr]    Compiling rlox-parser v0.1.0 (/opt/rustwide/workdir/rlox-parser)
[INFO] [stderr]    Compiling rlox-interpreter v0.1.0 (/opt/rustwide/workdir/rlox-interpreter)
[INFO] [stderr]    Compiling rlox-cli v0.1.0 (/opt/rustwide/workdir/rlox-cli)
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> rlox-parser/src/lib.rs:669:13
[INFO] [stdout]     |
[INFO] [stdout] 669 |         let r = print(&res[0]);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rlox_cli-dc6879eedc3fb818)
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_contract-217181c11af67fa5)
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_interpreter-d83ad7bdb4cd561d)
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_parser-39ba017a3729b704)
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_scanner-c27e2b3d9be6bd19)
[INFO] [stderr]   Executable tests/scanner_basic_tests.rs (/opt/rustwide/target/debug/deps/scanner_basic_tests-10b40d80289967fb)
[INFO] running `Command { std: "docker" "inspect" "786551aede50320e3ca8cc91708b6c46e696d1e64f99d6c25813757d6ac7e72d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786551aede50320e3ca8cc91708b6c46e696d1e64f99d6c25813757d6ac7e72d", kill_on_drop: false }`
[INFO] [stdout] 786551aede50320e3ca8cc91708b6c46e696d1e64f99d6c25813757d6ac7e72d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3ec3a14df5bca5c8e7cde53441533f832b2e6023218faef54efbf81fcd2ba49b
[INFO] running `Command { std: "docker" "start" "-a" "3ec3a14df5bca5c8e7cde53441533f832b2e6023218faef54efbf81fcd2ba49b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> rlox-parser/src/lib.rs:669:13
[INFO] [stderr]     |
[INFO] [stderr] 669 |         let r = print(&res[0]);
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rlox-parser` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rlox_cli-dc6879eedc3fb818)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_contract-217181c11af67fa5)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_interpreter-d83ad7bdb4cd561d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test environment::test::it_puts_and_returns_variable_on_single_scope ... ok
[INFO] [stdout] test environment::test::it_puts_on_root_and_gets_from_child ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_parser-39ba017a3729b704)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_parser_basic ... ok
[INFO] [stdout] test tests::test_parses_flat_series_of_factors_correctly ... ok
[INFO] [stdout] test tests::test_parses_ending_right_paren_correctly ... ok
[INFO] [stdout] test tests::test_parses_flat_series_of_terms_to_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox_scanner-c27e2b3d9be6bd19)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::it_increments_line_numbers_for_new_lines ... ok
[INFO] [stdout] test tests::it_parses_number_correctly_no_decimal_part ... ok
[INFO] [stdout] test tests::it_parses_comments_correctly_at_eof ... ok
[INFO] [stdout] test tests::it_parses_number_correctly ... ok
[INFO] [stdout] test tests::it_parses_out_simple_two_char_lexeme ... ok
[INFO] [stdout] test tests::it_parses_out_single_token_lexeme ... ok
[INFO] [stdout] test tests::it_parses_potential_two_char_lexeme_into_one_char_lexeme_if_subs_not_present ... ok
[INFO] [stdout] test tests::it_parses_simple_keyword_out_correctly ... ok
[INFO] [stdout] test tests::it_parses_slash_correctly ... ok
[INFO] [stdout] test tests::it_parses_strings_correctly ... ok
[INFO] [stdout] test tests::it_skips_comments_and_continues_on_next_line ... ok
[INFO] [stdout] test tests::it_skips_whitespace_incrementing_char_counter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/scanner_basic_tests.rs (/opt/rustwide/target/debug/deps/scanner_basic_tests-10b40d80289967fb)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test scanner_basic_tests::larger_source_scanner_test_multiple_lines_works ... ok
[INFO] [stdout] test scanner_basic_tests::simple_scanner_integration_test_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rlox-contract
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rlox-interpreter
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rlox-parser
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rlox-scanner
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3ec3a14df5bca5c8e7cde53441533f832b2e6023218faef54efbf81fcd2ba49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec3a14df5bca5c8e7cde53441533f832b2e6023218faef54efbf81fcd2ba49b", kill_on_drop: false }`
[INFO] [stdout] 3ec3a14df5bca5c8e7cde53441533f832b2e6023218faef54efbf81fcd2ba49b