[INFO] cloning repository https://github.com/kienmarkdo/writing-a-c-compiler-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kienmarkdo/writing-a-c-compiler-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkienmarkdo%2Fwriting-a-c-compiler-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkienmarkdo%2Fwriting-a-c-compiler-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e2fe8fcc5c1a9d90e52123ca20f2b6c7c66a8f8
[INFO] testing kienmarkdo/writing-a-c-compiler-rust against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkienmarkdo%2Fwriting-a-c-compiler-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kienmarkdo/writing-a-c-compiler-rust
[INFO] finished tweaking git repo https://github.com/kienmarkdo/writing-a-c-compiler-rust
[INFO] tweaked toml for git repo https://github.com/kienmarkdo/writing-a-c-compiler-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kienmarkdo/writing-a-c-compiler-rust on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kienmarkdo/writing-a-c-compiler-rust 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a1f442745e6b10f47e805a4832df8c15340e3514e81f9f6470c4b20051dc928
[INFO] running `Command { std: "docker" "start" "-a" "5a1f442745e6b10f47e805a4832df8c15340e3514e81f9f6470c4b20051dc928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a1f442745e6b10f47e805a4832df8c15340e3514e81f9f6470c4b20051dc928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a1f442745e6b10f47e805a4832df8c15340e3514e81f9f6470c4b20051dc928", kill_on_drop: false }`
[INFO] [stdout] 5a1f442745e6b10f47e805a4832df8c15340e3514e81f9f6470c4b20051dc928
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 375ad7e69913417ebc7637dacf43f7a026ff82fb853731d97c394fa8699816e3
[INFO] running `Command { std: "docker" "start" "-a" "375ad7e69913417ebc7637dacf43f7a026ff82fb853731d97c394fa8699816e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling clap_builder v4.5.46
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling clap_derive v4.5.45
[INFO] [stderr]    Compiling clap v4.5.46
[INFO] [stderr]    Compiling writing-a-c-compiler-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, path::Path};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.37s
[INFO] running `Command { std: "docker" "inspect" "375ad7e69913417ebc7637dacf43f7a026ff82fb853731d97c394fa8699816e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375ad7e69913417ebc7637dacf43f7a026ff82fb853731d97c394fa8699816e3", kill_on_drop: false }`
[INFO] [stdout] 375ad7e69913417ebc7637dacf43f7a026ff82fb853731d97c394fa8699816e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb4c2ac083cd5d70d1b11c3c2ca8f872ee8b1e0afac197c65a9dfcbae8987d7d
[INFO] running `Command { std: "docker" "start" "-a" "fb4c2ac083cd5d70d1b11c3c2ca8f872ee8b1e0afac197c65a9dfcbae8987d7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling writing-a-c-compiler-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, path::Path};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "fb4c2ac083cd5d70d1b11c3c2ca8f872ee8b1e0afac197c65a9dfcbae8987d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb4c2ac083cd5d70d1b11c3c2ca8f872ee8b1e0afac197c65a9dfcbae8987d7d", kill_on_drop: false }`
[INFO] [stdout] fb4c2ac083cd5d70d1b11c3c2ca8f872ee8b1e0afac197c65a9dfcbae8987d7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f022bda11fc117b9e5d529091ef4e5669943205914bb38862ebe6ad32ea1afda
[INFO] running `Command { std: "docker" "start" "-a" "f022bda11fc117b9e5d529091ef4e5669943205914bb38862ebe6ad32ea1afda", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fs::File`
[INFO] [stderr]  --> src/main.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fs::File, path::Path};
[INFO] [stderr]   |           ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `writing-a-c-compiler-rust` (bin "writing-a-c-compiler-rust" test) generated 1 warning (run `cargo fix --bin "writing-a-c-compiler-rust" -p writing-a-c-compiler-rust --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/writing_a_c_compiler_rust-f23b082b744b7115)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_inputs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f022bda11fc117b9e5d529091ef4e5669943205914bb38862ebe6ad32ea1afda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f022bda11fc117b9e5d529091ef4e5669943205914bb38862ebe6ad32ea1afda", kill_on_drop: false }`
[INFO] [stdout] f022bda11fc117b9e5d529091ef4e5669943205914bb38862ebe6ad32ea1afda
