[INFO] cloning repository https://github.com/Jaco-Minnaar/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jaco-Minnaar/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaco-Minnaar%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaco-Minnaar%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab12b8b0bafcff7bda6bfa1a8bd0cdae64651e80
[INFO] checking Jaco-Minnaar/rlox against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaco-Minnaar%2Frlox" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jaco-Minnaar/rlox on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jaco-Minnaar/rlox
[INFO] finished tweaking git repo https://github.com/Jaco-Minnaar/rlox
[INFO] tweaked toml for git repo https://github.com/Jaco-Minnaar/rlox written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Jaco-Minnaar/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fd-lock v3.0.5
[INFO] [stderr]   Downloaded str-buf v1.0.5
[INFO] [stderr]   Downloaded io-lifetimes v0.6.1
[INFO] [stderr]   Downloaded rustyline v9.1.2
[INFO] [stderr]   Downloaded syn v1.0.93
[INFO] [stderr]   Downloaded rustix v0.34.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acd9d2d6f81159314a93e9f8a155201674830dcba1638ca4e3b924fa2740d187
[INFO] running `Command { std: "docker" "start" "-a" "acd9d2d6f81159314a93e9f8a155201674830dcba1638ca4e3b924fa2740d187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acd9d2d6f81159314a93e9f8a155201674830dcba1638ca4e3b924fa2740d187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd9d2d6f81159314a93e9f8a155201674830dcba1638ca4e3b924fa2740d187", kill_on_drop: false }`
[INFO] [stdout] acd9d2d6f81159314a93e9f8a155201674830dcba1638ca4e3b924fa2740d187
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fe3cfe81f4031d168efd3fabf4d55066e5fac8ec3336409d3c0fe32f5bba488
[INFO] running `Command { std: "docker" "start" "-a" "3fe3cfe81f4031d168efd3fabf4d55066e5fac8ec3336409d3c0fe32f5bba488", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling io-lifetimes v0.6.1
[INFO] [stderr]    Compiling rustix v0.34.6
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking linux-raw-sys v0.0.46
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fd-lock v3.0.5
[INFO] [stderr]     Checking rustyline v9.1.2
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ast::stmt::Stmt`, `environment::Environment`
[INFO] [stdout]  --> src/interpreter/mod.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{ast::stmt::Stmt, environment::Environment};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::interpreter::Interpreter`
[INFO] [stdout]  --> src/interpreter/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use self::interpreter::Interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ast::stmt::Stmt`, `environment::Environment`
[INFO] [stdout]  --> src/interpreter/mod.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{ast::stmt::Stmt, environment::Environment};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::interpreter::Interpreter`
[INFO] [stdout]  --> src/interpreter/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use self::interpreter::Interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/interpreter/callable.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn try_from(value: Literal) -> Result<Self, Self::Error> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/parser/parser.rs:116:40
[INFO] [stdout]     |
[INFO] [stdout] 116 |             Some(TokenKind::Identifier(id)) => self.advance().unwrap(),
[INFO] [stdout]     |                                        ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `LexingError` and `ParsingError` are never constructed
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum LoxErrorType {
[INFO] [stdout]    |      ------------ variants in this enum
[INFO] [stdout] 17 |     LexingError,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 18 |     ParsingError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoxErrorType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error_type` and `line` are never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct LoxError {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 24 |     error_type: LoxErrorType,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 25 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pretty_print` is never used
[INFO] [stdout]   --> src/ast/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn pretty_print(expr: &Expr) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LexingError` is never used
[INFO] [stdout]  --> src/lexer/mod.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum LexingError {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_part_number` is never used
[INFO] [stdout]    --> src/lexer/mod.rs:226:8
[INFO] [stdout]     |
[INFO] [stdout] 78  | impl Cursor<'_> {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 226 |     fn is_part_number(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/interpreter/callable.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn try_from(value: Literal) -> Result<Self, Self::Error> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/parser/parser.rs:116:40
[INFO] [stdout]     |
[INFO] [stdout] 116 |             Some(TokenKind::Identifier(id)) => self.advance().unwrap(),
[INFO] [stdout]     |                                        ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `LexingError` and `ParsingError` are never constructed
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum LoxErrorType {
[INFO] [stdout]    |      ------------ variants in this enum
[INFO] [stdout] 17 |     LexingError,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 18 |     ParsingError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoxErrorType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error_type` and `line` are never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct LoxError {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 24 |     error_type: LoxErrorType,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 25 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pretty_print` is never used
[INFO] [stdout]   --> src/ast/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn pretty_print(expr: &Expr) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LexingError` is never used
[INFO] [stdout]  --> src/lexer/mod.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum LexingError {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_part_number` is never used
[INFO] [stdout]    --> src/lexer/mod.rs:226:8
[INFO] [stdout]     |
[INFO] [stdout] 78  | impl Cursor<'_> {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 226 |     fn is_part_number(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rlox` is imported redundantly
[INFO] [stdout]  --> src/bin/lox.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rlox;
[INFO] [stdout]   |     ^^^^ the item `rlox` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rlox` is imported redundantly
[INFO] [stdout]  --> src/bin/lox.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rlox;
[INFO] [stdout]   |     ^^^^ the item `rlox` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.78s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3fe3cfe81f4031d168efd3fabf4d55066e5fac8ec3336409d3c0fe32f5bba488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe3cfe81f4031d168efd3fabf4d55066e5fac8ec3336409d3c0fe32f5bba488", kill_on_drop: false }`
[INFO] [stdout] 3fe3cfe81f4031d168efd3fabf4d55066e5fac8ec3336409d3c0fe32f5bba488