[INFO] cloning repository https://github.com/ceronman/writing-a-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/ceronman/writing-a-c-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fceronman%2Fwriting-a-c-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fceronman%2Fwriting-a-c-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce987db61026febea0e12806e99932b735808d61
[INFO] checking ceronman/writing-a-c-compiler against master#b44e14f762fd4062faeba97f8f2bc470298ec1ac for pr-135331
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fceronman%2Fwriting-a-c-compiler" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ceronman/writing-a-c-compiler on toolchain b44e14f762fd4062faeba97f8f2bc470298ec1ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ceronman/writing-a-c-compiler
[INFO] finished tweaking git repo https://github.com/ceronman/writing-a-c-compiler
[INFO] tweaked toml for git repo https://github.com/ceronman/writing-a-c-compiler written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ceronman/writing-a-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" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55c4f0af8efdcf60ef20329ff813ba61c2ca1ce1722b937668c2f1b3a8ae24c2
[INFO] running `Command { std: "docker" "start" "-a" "55c4f0af8efdcf60ef20329ff813ba61c2ca1ce1722b937668c2f1b3a8ae24c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55c4f0af8efdcf60ef20329ff813ba61c2ca1ce1722b937668c2f1b3a8ae24c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55c4f0af8efdcf60ef20329ff813ba61c2ca1ce1722b937668c2f1b3a8ae24c2", kill_on_drop: false }`
[INFO] [stdout] 55c4f0af8efdcf60ef20329ff813ba61c2ca1ce1722b937668c2f1b3a8ae24c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85fde81b46a9b4d3e3af344034461e8f5056da9438dabb2cac52af5ed7933254
[INFO] running `Command { std: "docker" "start" "-a" "85fde81b46a9b4d3e3af344034461e8f5056da9438dabb2cac52af5ed7933254", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]     Checking writing-a-c-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `UnaryOp`
[INFO] [stdout]  --> src/semantic/id_resolution.rs:3:45
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Node, Program, Statement, StorageClass, UnaryOp, VarDeclaration,
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/semantic/id_resolution.rs:242:48
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Expression::Unary { expr: operand, op } => {
[INFO] [stdout]     |                                                ^^ help: try ignoring the field: `op: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnaryOp`
[INFO] [stdout]  --> src/semantic/id_resolution.rs:3:45
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Node, Program, Statement, StorageClass, UnaryOp, VarDeclaration,
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/semantic/id_resolution.rs:242:48
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Expression::Unary { expr: operand, op } => {
[INFO] [stdout]     |                                                ^^ help: try ignoring the field: `op: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "85fde81b46a9b4d3e3af344034461e8f5056da9438dabb2cac52af5ed7933254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85fde81b46a9b4d3e3af344034461e8f5056da9438dabb2cac52af5ed7933254", kill_on_drop: false }`
[INFO] [stdout] 85fde81b46a9b4d3e3af344034461e8f5056da9438dabb2cac52af5ed7933254