[INFO] cloning repository https://github.com/zachlambert/c-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zachlambert/c-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachlambert%2Fc-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachlambert%2Fc-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9b3204e0957d9427cecdacf6462c873ae8fe339
[INFO] testing zachlambert/c-compiler against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachlambert%2Fc-compiler" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zachlambert/c-compiler on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zachlambert/c-compiler
[INFO] finished tweaking git repo https://github.com/zachlambert/c-compiler
[INFO] tweaked toml for git repo https://github.com/zachlambert/c-compiler written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/zachlambert/c-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bafacdc818a1a78e37509a59fc91257c6bd53df43d61b93191589edc62f0acf
[INFO] running `Command { std: "docker" "start" "-a" "8bafacdc818a1a78e37509a59fc91257c6bd53df43d61b93191589edc62f0acf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bafacdc818a1a78e37509a59fc91257c6bd53df43d61b93191589edc62f0acf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bafacdc818a1a78e37509a59fc91257c6bd53df43d61b93191589edc62f0acf", kill_on_drop: false }`
[INFO] [stdout] 8bafacdc818a1a78e37509a59fc91257c6bd53df43d61b93191589edc62f0acf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5a2f8d032a73008a3c296d2349ef70eb4a47451ff996795541f7f43202c16eb
[INFO] running `Command { std: "docker" "start" "-a" "f5a2f8d032a73008a3c296d2349ef70eb4a47451ff996795541f7f43202c16eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.3.1
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest_datatype_i`
[INFO] [stdout]   --> src/generator/statement/statement.rs:26:36
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (instruction, dest_symbol, dest_datatype_i) = generate_expression_lvalue(generator);
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dest_datatype_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_datatype_i`
[INFO] [stdout]   --> src/generator/statement/statement.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let (src_symbol, src_datatype_i) = generate_expression_rvalue(generator);
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_datatype_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_datatype_i`
[INFO] [stdout]    --> src/generator/statement/expression.rs:214:30
[INFO] [stdout]     |
[INFO] [stdout] 214 |             let (rhs_symbol, rhs_datatype_i) = generate_expression_rvalue(generator);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_datatype_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*generator` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/generator/content/structure.rs:48:76
[INFO] [stdout]    |
[INFO] [stdout] 46 |                     let size = match generator.current() {
[INFO] [stdout]    |                                      --------- immutable borrow occurs here
[INFO] [stdout] 47 |                         Construct::Primitive(primitive) => get_primitive_size(primitive),
[INFO] [stdout] 48 |                         Construct::Reference(ref_id) => get_reference_size(generator, *ref_id),
[INFO] [stdout]    |                                                                            ^^^^^^^^^  ------- immutable borrow later used here
[INFO] [stdout]    |                                                                            |
[INFO] [stdout]    |                                                                            mutable borrow occurs here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_tokens`
[INFO] [stdout]   --> src/lexer/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn print_tokens(tokens: &Vec<Token>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Break`
[INFO] [stdout]  --> src/parser/construct/statement.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Break,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Continue`
[INFO] [stdout]  --> src/parser/construct/statement.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Continue,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Conditional`
[INFO] [stdout]   --> src/parser/construct/statement.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Conditional,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Loop`
[INFO] [stdout]   --> src/parser/construct/statement.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Loop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Control`
[INFO] [stdout]   --> src/parser/construct/statement.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Control(Control),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/parser/construct/statement.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sub`
[INFO] [stdout]  --> src/generator/instructions.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Sub,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/generator/instructions.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LessThan`
[INFO] [stdout]   --> src/generator/instructions.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     LessThan,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Load`
[INFO] [stdout]   --> src/generator/instructions.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Load,  // Move Mem[src] -> dst
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SetReturned`
[INFO] [stdout]   --> src/generator/instructions.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     SetReturned, // Move symbol -> returned(location)
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Jump`
[INFO] [stdout]   --> src/generator/instructions.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Jump,  // Unconditional jump to a label
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Branch`
[INFO] [stdout]   --> src/generator/instructions.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Branch(Condition), // Jump to label if Condition(RegA, RegB)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Call`
[INFO] [stdout]   --> src/generator/instructions.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Call,  // Call procedure
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]    --> src/generator/instructions.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Int(i64),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]    --> src/generator/instructions.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 |     Float(f64),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Constant`
[INFO] [stdout]    --> src/generator/instructions.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     Constant(Constant),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]    --> src/generator/instructions.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     Integer(i64),        // Offset or stride
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "f5a2f8d032a73008a3c296d2349ef70eb4a47451ff996795541f7f43202c16eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a2f8d032a73008a3c296d2349ef70eb4a47451ff996795541f7f43202c16eb", kill_on_drop: false }`
[INFO] [stdout] f5a2f8d032a73008a3c296d2349ef70eb4a47451ff996795541f7f43202c16eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc4f3352d68472a619146a2be90780b7f8e650e4aa9b89aeaadeeb7ac4fa6e51
[INFO] running `Command { std: "docker" "start" "-a" "fc4f3352d68472a619146a2be90780b7f8e650e4aa9b89aeaadeeb7ac4fa6e51", kill_on_drop: false }`
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest_datatype_i`
[INFO] [stdout]   --> src/generator/statement/statement.rs:26:36
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (instruction, dest_symbol, dest_datatype_i) = generate_expression_lvalue(generator);
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dest_datatype_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_datatype_i`
[INFO] [stdout]   --> src/generator/statement/statement.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let (src_symbol, src_datatype_i) = generate_expression_rvalue(generator);
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_datatype_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs_datatype_i`
[INFO] [stdout]    --> src/generator/statement/expression.rs:214:30
[INFO] [stdout]     |
[INFO] [stdout] 214 |             let (rhs_symbol, rhs_datatype_i) = generate_expression_rvalue(generator);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_datatype_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*generator` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/generator/content/structure.rs:48:76
[INFO] [stdout]    |
[INFO] [stdout] 46 |                     let size = match generator.current() {
[INFO] [stdout]    |                                      --------- immutable borrow occurs here
[INFO] [stdout] 47 |                         Construct::Primitive(primitive) => get_primitive_size(primitive),
[INFO] [stdout] 48 |                         Construct::Reference(ref_id) => get_reference_size(generator, *ref_id),
[INFO] [stdout]    |                                                                            ^^^^^^^^^  ------- immutable borrow later used here
[INFO] [stdout]    |                                                                            |
[INFO] [stdout]    |                                                                            mutable borrow occurs here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_tokens`
[INFO] [stdout]   --> src/lexer/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn print_tokens(tokens: &Vec<Token>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Break`
[INFO] [stdout]  --> src/parser/construct/statement.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Break,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Continue`
[INFO] [stdout]  --> src/parser/construct/statement.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Continue,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Conditional`
[INFO] [stdout]   --> src/parser/construct/statement.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Conditional,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Loop`
[INFO] [stdout]   --> src/parser/construct/statement.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Loop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Control`
[INFO] [stdout]   --> src/parser/construct/statement.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Control(Control),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/parser/construct/statement.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sub`
[INFO] [stdout]  --> src/generator/instructions.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Sub,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/generator/instructions.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LessThan`
[INFO] [stdout]   --> src/generator/instructions.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     LessThan,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Load`
[INFO] [stdout]   --> src/generator/instructions.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Load,  // Move Mem[src] -> dst
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SetReturned`
[INFO] [stdout]   --> src/generator/instructions.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     SetReturned, // Move symbol -> returned(location)
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Jump`
[INFO] [stdout]   --> src/generator/instructions.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Jump,  // Unconditional jump to a label
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Branch`
[INFO] [stdout]   --> src/generator/instructions.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Branch(Condition), // Jump to label if Condition(RegA, RegB)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Call`
[INFO] [stdout]   --> src/generator/instructions.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Call,  // Call procedure
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]    --> src/generator/instructions.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Int(i64),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]    --> src/generator/instructions.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 |     Float(f64),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Constant`
[INFO] [stdout]    --> src/generator/instructions.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     Constant(Constant),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]    --> src/generator/instructions.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     Integer(i64),        // Offset or stride
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "fc4f3352d68472a619146a2be90780b7f8e650e4aa9b89aeaadeeb7ac4fa6e51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4f3352d68472a619146a2be90780b7f8e650e4aa9b89aeaadeeb7ac4fa6e51", kill_on_drop: false }`
[INFO] [stdout] fc4f3352d68472a619146a2be90780b7f8e650e4aa9b89aeaadeeb7ac4fa6e51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b272fd0d91818f7d7085b5f5680384c35b80565028428570a2692faffb153590
[INFO] running `Command { std: "docker" "start" "-a" "b272fd0d91818f7d7085b5f5680384c35b80565028428570a2692faffb153590", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `dest_datatype_i`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/generator/statement/statement.rs:26:36
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 26 |     let (instruction, dest_symbol, dest_datatype_i) = generate_expression_lvalue(generator);
[INFO] [stdout] 
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dest_datatype_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src_datatype_i`
[INFO] [stderr]   --> src/generator/statement/statement.rs:28:22
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let (src_symbol, src_datatype_i) = generate_expression_rvalue(generator);
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_datatype_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rhs_datatype_i`
[INFO] [stderr]    --> src/generator/statement/expression.rs:214:30
[INFO] [stderr]     |
[INFO] [stderr] 214 |             let (rhs_symbol, rhs_datatype_i) = generate_expression_rvalue(generator);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rhs_datatype_i`
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*generator` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/generator/content/structure.rs:48:76
[INFO] [stderr]    |
[INFO] [stderr] 46 |                     let size = match generator.current() {
[INFO] [stderr]    |                                      --------- immutable borrow occurs here
[INFO] [stderr] 47 |                         Construct::Primitive(primitive) => get_primitive_size(primitive),
[INFO] [stderr] 48 |                         Construct::Reference(ref_id) => get_reference_size(generator, *ref_id),
[INFO] [stderr]    |                                                                            ^^^^^^^^^  ------- immutable borrow later used here
[INFO] [stderr]    |                                                                            |
[INFO] [stderr]    |                                                                            mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_tokens`
[INFO] [stderr]   --> src/lexer/mod.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn print_tokens(tokens: &Vec<Token>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Break`
[INFO] [stderr]  --> src/parser/construct/statement.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Break,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Continue`
[INFO] [stderr]  --> src/parser/construct/statement.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Continue,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Conditional`
[INFO] [stderr]   --> src/parser/construct/statement.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Conditional,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Loop`
[INFO] [stderr]   --> src/parser/construct/statement.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Loop,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Control`
[INFO] [stderr]   --> src/parser/construct/statement.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Control(Control),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Block`
[INFO] [stderr]   --> src/parser/construct/statement.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Block,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]  --> src/generator/instructions.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Sub,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Equal`
[INFO] [stderr]   --> src/generator/instructions.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Equal,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessThan`
[INFO] [stderr]   --> src/generator/instructions.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     LessThan,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Load`
[INFO] [stderr]   --> src/generator/instructions.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     Load,  // Move Mem[src] -> dst
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetReturned`
[INFO] [stderr]   --> src/generator/instructions.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     SetReturned, // Move symbol -> returned(location)
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Jump`
[INFO] [stderr]   --> src/generator/instructions.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     Jump,  // Unconditional jump to a label
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Branch`
[INFO] [stderr]   --> src/generator/instructions.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     Branch(Condition), // Jump to label if Condition(RegA, RegB)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/generator/instructions.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     Call,  // Call procedure
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Int`
[INFO] [stderr]    --> src/generator/instructions.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     Int(i64),
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]    --> src/generator/instructions.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     Float(f64),
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Constant`
[INFO] [stderr]    --> src/generator/instructions.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     Constant(Constant),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]    --> src/generator/instructions.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     Integer(i64),        // Offset or stride
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `compiler` (bin "compiler" test) generated 23 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/compiler-b7946802ad55b8e3)
[INFO] running `Command { std: "docker" "inspect" "b272fd0d91818f7d7085b5f5680384c35b80565028428570a2692faffb153590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b272fd0d91818f7d7085b5f5680384c35b80565028428570a2692faffb153590", kill_on_drop: false }`
[INFO] [stdout] b272fd0d91818f7d7085b5f5680384c35b80565028428570a2692faffb153590