[INFO] cloning repository https://github.com/rubyr/very-bad-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/rubyr/very-bad-c-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubyr%2Fvery-bad-c-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubyr%2Fvery-bad-c-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6204b5c143e58aad955be6d3c806f2635477f29d
[INFO] checking rubyr/very-bad-c-compiler against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubyr%2Fvery-bad-c-compiler" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rubyr/very-bad-c-compiler on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rubyr/very-bad-c-compiler
[INFO] finished tweaking git repo https://github.com/rubyr/very-bad-c-compiler
[INFO] tweaked toml for git repo https://github.com/rubyr/very-bad-c-compiler written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rubyr/very-bad-c-compiler 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" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03e7f753a94a36dfc8421d2d17c7782cd0030a4f97ffac526774587419339790
[INFO] running `Command { std: "docker" "start" "-a" "03e7f753a94a36dfc8421d2d17c7782cd0030a4f97ffac526774587419339790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03e7f753a94a36dfc8421d2d17c7782cd0030a4f97ffac526774587419339790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e7f753a94a36dfc8421d2d17c7782cd0030a4f97ffac526774587419339790", kill_on_drop: false }`
[INFO] [stdout] 03e7f753a94a36dfc8421d2d17c7782cd0030a4f97ffac526774587419339790
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 722a06c3c197d1faeda655232f37a3e6a8da6a83ce6994262963d88b79ab421a
[INFO] running `Command { std: "docker" "start" "-a" "722a06c3c197d1faeda655232f37a3e6a8da6a83ce6994262963d88b79ab421a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking clap_builder v4.5.23
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking clap v4.5.23
[INFO] [stderr]     Checking very-bad-c-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/parser_asm.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     if let CProgram::Function(func) = func {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/parser_asm.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         CStatement::Return(ex) => Some(vec![
[INFO] [stdout]    |         ---------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 88 |         _ => None,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/parser_asm.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         CExpression::Constant(token) => Some(Operand::Imm(token)),
[INFO] [stdout]    |         ---------------------------- matches all the relevant values
[INFO] [stdout] 95 |         _ => None,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/parser_asm.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     if let CProgram::Function(func) = func {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CParserError` is never constructed
[INFO] [stdout]   --> src/parser_asm.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct CParserError {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ret_type` is never read
[INFO] [stdout]   --> src/parser_c.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct CFunction {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 14 |     pub ret_type: Token,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CFunction` 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 `inspect` is never used
[INFO] [stdout]    --> src/parser_c.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn inspect(tokens: &Tokens) -> Option<&Token> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/parser_asm.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         CStatement::Return(ex) => Some(vec![
[INFO] [stdout]    |         ---------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 88 |         _ => None,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/parser_asm.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         CExpression::Constant(token) => Some(Operand::Imm(token)),
[INFO] [stdout]    |         ---------------------------- matches all the relevant values
[INFO] [stdout] 95 |         _ => None,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CParserError` is never constructed
[INFO] [stdout]   --> src/parser_asm.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct CParserError {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ret_type` is never read
[INFO] [stdout]   --> src/parser_c.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct CFunction {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 14 |     pub ret_type: Token,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CFunction` 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 `inspect` is never used
[INFO] [stdout]    --> src/parser_c.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn inspect(tokens: &Tokens) -> Option<&Token> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.71s
[INFO] running `Command { std: "docker" "inspect" "722a06c3c197d1faeda655232f37a3e6a8da6a83ce6994262963d88b79ab421a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "722a06c3c197d1faeda655232f37a3e6a8da6a83ce6994262963d88b79ab421a", kill_on_drop: false }`
[INFO] [stdout] 722a06c3c197d1faeda655232f37a3e6a8da6a83ce6994262963d88b79ab421a