[INFO] cloning repository https://github.com/julioolvr/rlox3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/julioolvr/rlox3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulioolvr%2Frlox3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulioolvr%2Frlox3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0e2e1e3ef32031ff306b1868fc3680bce9f5b60
[INFO] testing julioolvr/rlox3 against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulioolvr%2Frlox3" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/julioolvr/rlox3 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/julioolvr/rlox3
[INFO] finished tweaking git repo https://github.com/julioolvr/rlox3
[INFO] tweaked toml for git repo https://github.com/julioolvr/rlox3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/julioolvr/rlox3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8a6b93c87bc2b49bd93928f9a76bb2c6e9b92f3648de06d5eb5b061376071d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c8a6b93c87bc2b49bd93928f9a76bb2c6e9b92f3648de06d5eb5b061376071d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8a6b93c87bc2b49bd93928f9a76bb2c6e9b92f3648de06d5eb5b061376071d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a6b93c87bc2b49bd93928f9a76bb2c6e9b92f3648de06d5eb5b061376071d9", kill_on_drop: false }`
[INFO] [stdout] c8a6b93c87bc2b49bd93928f9a76bb2c6e9b92f3648de06d5eb5b061376071d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b42b6cb9d76f6510021e9dacaf32321418efa04919fa6d2dc2db28ba61afed91
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b42b6cb9d76f6510021e9dacaf32321418efa04919fa6d2dc2db28ba61afed91", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `instructions`
[INFO] [stdout]   --> src/rlox/chunk.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn instructions(&self) -> impl Iterator<Item = &Instruction> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         self.expression();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         self.parse_precedence(Precedence::Unary);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.parse_precedence(operator_type.precedence().higher());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "b42b6cb9d76f6510021e9dacaf32321418efa04919fa6d2dc2db28ba61afed91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42b6cb9d76f6510021e9dacaf32321418efa04919fa6d2dc2db28ba61afed91", kill_on_drop: false }`
[INFO] [stdout] b42b6cb9d76f6510021e9dacaf32321418efa04919fa6d2dc2db28ba61afed91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 51001a6e727fc0ad564e0c32f46dde0ed43f62a3b850745ad78c52e36a2e0101
[INFO] running `Command { std: "docker" "start" "-a" "51001a6e727fc0ad564e0c32f46dde0ed43f62a3b850745ad78c52e36a2e0101", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `instructions`
[INFO] [stdout]   --> src/rlox/chunk.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn instructions(&self) -> impl Iterator<Item = &Instruction> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rlox3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         self.expression();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         self.parse_precedence(Precedence::Unary);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.parse_precedence(operator_type.precedence().higher());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         self.expression();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         self.parse_precedence(Precedence::Unary);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/rlox/compiler.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 |         self.parse_precedence(operator_type.precedence().higher());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `Command { std: "docker" "inspect" "51001a6e727fc0ad564e0c32f46dde0ed43f62a3b850745ad78c52e36a2e0101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51001a6e727fc0ad564e0c32f46dde0ed43f62a3b850745ad78c52e36a2e0101", kill_on_drop: false }`
[INFO] [stdout] 51001a6e727fc0ad564e0c32f46dde0ed43f62a3b850745ad78c52e36a2e0101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 45a1e3fc8129aa5619e77dfa421eada3af30bfd1d9eb7fad0874a1a03fd9b660
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "45a1e3fc8129aa5619e77dfa421eada3af30bfd1d9eb7fad0874a1a03fd9b660", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `instructions`
[INFO] [stderr]   --> src/rlox/chunk.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn instructions(&self) -> impl Iterator<Item = &Instruction> {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rlox/compiler.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         self.expression();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rlox/compiler.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |         self.parse_precedence(Precedence::Unary);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rlox/compiler.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 |         self.parse_precedence(operator_type.precedence().higher());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rlox/compiler.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         self.expression();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rlox/compiler.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |         self.parse_precedence(Precedence::Unary);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rlox/compiler.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 |         self.parse_precedence(operator_type.precedence().higher());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rlox3-6fbf9e14c7df6f05
[INFO] [stdout] running 10 tests
[INFO] [stdout] test rlox::compiler::tests::test_arithmetic_precedence ... ok
[INFO] [stdout] test rlox::compiler::tests::test_compile_binary_operator ... ok
[INFO] [stdout] test rlox::compiler::tests::test_compile_error ... ok
[INFO] [stdout] test rlox::compiler::tests::test_compile_number ... ok
[INFO] [stdout] test rlox::compiler::tests::test_compile_unary_operator ... ok
[INFO] [stdout] test rlox::compiler::tests::test_grouping ... ok
[INFO] [stdout] test rlox::scanner::tests::test_addition ... ok
[INFO] [stdout] test rlox::compiler::tests::test_grouping_error ... ok
[INFO] [stdout] test rlox::vm::tests::test_empty_stack_after_binary_operation ... ok
[INFO] [stdout] test rlox::vm::tests::test_empty_stack_after_negation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rlox3-cf14b2da2dfa46bc
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rlox3
[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] [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 `Command { std: "docker" "inspect" "45a1e3fc8129aa5619e77dfa421eada3af30bfd1d9eb7fad0874a1a03fd9b660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a1e3fc8129aa5619e77dfa421eada3af30bfd1d9eb7fad0874a1a03fd9b660", kill_on_drop: false }`
[INFO] [stdout] 45a1e3fc8129aa5619e77dfa421eada3af30bfd1d9eb7fad0874a1a03fd9b660