[INFO] cloning repository https://github.com/cojmeister/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/cojmeister/c-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcojmeister%2Fc-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcojmeister%2Fc-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0ae33069af91c9da4f512888c34c8a10dc2144a
[INFO] checking cojmeister/c-compiler against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcojmeister%2Fc-compiler" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cojmeister/c-compiler
[INFO] finished tweaking git repo https://github.com/cojmeister/c-compiler
[INFO] tweaked toml for git repo https://github.com/cojmeister/c-compiler written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cojmeister/c-compiler on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cojmeister/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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cb83200eb086fce932c4f1f56a5d54988d0b4d29312259d615874179b91eb32
[INFO] running `Command { std: "docker" "start" "-a" "3cb83200eb086fce932c4f1f56a5d54988d0b4d29312259d615874179b91eb32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cb83200eb086fce932c4f1f56a5d54988d0b4d29312259d615874179b91eb32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb83200eb086fce932c4f1f56a5d54988d0b4d29312259d615874179b91eb32", kill_on_drop: false }`
[INFO] [stdout] 3cb83200eb086fce932c4f1f56a5d54988d0b4d29312259d615874179b91eb32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b32665d1fbd61e7b4054dd58d550930cd06fd924c5609dc43eaf20a411346f1c
[INFO] running `Command { std: "docker" "start" "-a" "b32665d1fbd61e7b4054dd58d550930cd06fd924c5609dc43eaf20a411346f1c", kill_on_drop: false }`
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `architecture` is never read
[INFO] [stdout]   --> src/assembly.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct AssemblyWriter<W: Write> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 22 |     file: BufWriter<W>,
[INFO] [stdout] 23 |     architecture: SupportedArchitectures,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `free_all_registers` is never used
[INFO] [stdout]   --> src/assembly.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait WriteAssembly {
[INFO] [stdout]    |       ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn free_all_registers(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test_evaluate` is never used
[INFO] [stdout]    --> src/ast.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 23  | impl ASTNode {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn test_evaluate(&self) -> Result<i32, ASTError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `architecture` is never read
[INFO] [stdout]   --> src/assembly.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct AssemblyWriter<W: Write> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 22 |     file: BufWriter<W>,
[INFO] [stdout] 23 |     architecture: SupportedArchitectures,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ExpectedInteger` is never constructed
[INFO] [stdout]   --> src/ast.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum ASTError {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     ExpectedInteger,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ASTError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test_evaluate` is never used
[INFO] [stdout]    --> src/ast.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 23  | impl ASTNode {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn test_evaluate(&self) -> Result<i32, ASTError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `architecture` is never read
[INFO] [stdout]   --> src/assembly.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct AssemblyWriter<W: Write> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 22 |     file: BufWriter<W>,
[INFO] [stdout] 23 |     architecture: SupportedArchitectures,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `free_all_registers` is never used
[INFO] [stdout]   --> src/assembly.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait WriteAssembly {
[INFO] [stdout]    |       ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn free_all_registers(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stdout] warning: field `architecture` is never read
[INFO] [stdout]   --> src/assembly.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct AssemblyWriter<W: Write> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 22 |     file: BufWriter<W>,
[INFO] [stdout] 23 |     architecture: SupportedArchitectures,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b32665d1fbd61e7b4054dd58d550930cd06fd924c5609dc43eaf20a411346f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b32665d1fbd61e7b4054dd58d550930cd06fd924c5609dc43eaf20a411346f1c", kill_on_drop: false }`
[INFO] [stdout] b32665d1fbd61e7b4054dd58d550930cd06fd924c5609dc43eaf20a411346f1c