[INFO] cloning repository https://github.com/HenrySwanson/rust-lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HenrySwanson/rust-lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHenrySwanson%2Frust-lox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHenrySwanson%2Frust-lox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77022742696a34a4c4c19b86b14b76d67a3ba6b9
[INFO] checking HenrySwanson/rust-lox against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHenrySwanson%2Frust-lox" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HenrySwanson/rust-lox 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/HenrySwanson/rust-lox
[INFO] finished tweaking git repo https://github.com/HenrySwanson/rust-lox
[INFO] tweaked toml for git repo https://github.com/HenrySwanson/rust-lox written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HenrySwanson/rust-lox 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 test-generator v0.3.0
[INFO] [stderr]   Downloaded num_enum v0.5.6
[INFO] [stderr]   Downloaded num_enum_derive v0.5.6
[INFO] [stderr]   Downloaded clap_derive v3.0.6
[INFO] [stderr]   Downloaded serde v1.0.135
[INFO] [stderr]   Downloaded clap v3.0.10
[INFO] [stderr]   Downloaded libc v0.2.113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d0708adef7c61d8a99b515527f6abfa7dccbd2995bdbc6b9a75cec2ee9794f1e
[INFO] running `Command { std: "docker" "start" "-a" "d0708adef7c61d8a99b515527f6abfa7dccbd2995bdbc6b9a75cec2ee9794f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0708adef7c61d8a99b515527f6abfa7dccbd2995bdbc6b9a75cec2ee9794f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0708adef7c61d8a99b515527f6abfa7dccbd2995bdbc6b9a75cec2ee9794f1e", kill_on_drop: false }`
[INFO] [stdout] d0708adef7c61d8a99b515527f6abfa7dccbd2995bdbc6b9a75cec2ee9794f1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4cd3793364ba158f3ea18e72aeb5ea208f5407f6b37e052f0d0f637143780ede
[INFO] running `Command { std: "docker" "start" "-a" "4cd3793364ba158f3ea18e72aeb5ea208f5407f6b37e052f0d0f637143780ede", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.135
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking more-asserts v0.2.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling test-generator v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.0.6
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.6
[INFO] [stderr]     Checking clap v3.0.10
[INFO] [stderr]     Checking num_enum v0.5.6
[INFO] [stderr]     Checking rust-lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/bytecode/vm/native.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct NativeFunctionData {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 15 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `iter` is never used
[INFO] [stdout]    --> src/frontend/lexer/lexer.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 18  | impl<'src> Lexer<'src> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 199 |     pub fn iter(self) -> LexerIterator<'src> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]  --> src/frontend/parser/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Parser<'a> {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 9 |     source: &'a str,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/bytecode/vm/native.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct NativeFunctionData {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 15 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]  --> src/frontend/parser/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Parser<'a> {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 9 |     source: &'a str,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.13s
[INFO] running `Command { std: "docker" "inspect" "4cd3793364ba158f3ea18e72aeb5ea208f5407f6b37e052f0d0f637143780ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd3793364ba158f3ea18e72aeb5ea208f5407f6b37e052f0d0f637143780ede", kill_on_drop: false }`
[INFO] [stdout] 4cd3793364ba158f3ea18e72aeb5ea208f5407f6b37e052f0d0f637143780ede