[INFO] fetching crate rbsnrust 0.1.0...
[INFO] testing rbsnrust-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rbsnrust 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rbsnrust 0.1.0
[INFO] finished tweaking crates.io crate rbsnrust 0.1.0
[INFO] tweaked toml for crates.io crate rbsnrust 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rbsnrust 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] [stderr]       Adding toml v0.4.10 (available: v1.1.2+spec-1.1.0)
[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] 94754ef869489bc8b278c59ff4f9ef0d8e72fc18042b4f391e1a815252c52d05
[INFO] running `Command { std: "docker" "start" "-a" "94754ef869489bc8b278c59ff4f9ef0d8e72fc18042b4f391e1a815252c52d05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94754ef869489bc8b278c59ff4f9ef0d8e72fc18042b4f391e1a815252c52d05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94754ef869489bc8b278c59ff4f9ef0d8e72fc18042b4f391e1a815252c52d05", kill_on_drop: false }`
[INFO] [stdout] 94754ef869489bc8b278c59ff4f9ef0d8e72fc18042b4f391e1a815252c52d05
[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] edd053b724882a2792815d478302181156df8199a187d0c9a1a8eab59f3e1143
[INFO] running `Command { std: "docker" "start" "-a" "edd053b724882a2792815d478302181156df8199a187d0c9a1a8eab59f3e1143", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling robson_compiler v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling rbsnrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `home_dir`, `lines`
[INFO] [stdout]   --> build.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl CompilerInfra for BuildInfra {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `home_dir`, `lines` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `fn home_dir(&self) -> std::option::Option<std::string::String> { todo!() }`
[INFO] [stdout]    = help: implement the missing item: `fn lines(&self, _: &str) -> Result<Vec<std::string::String>, IError> { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rbsnrust` (build script) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "edd053b724882a2792815d478302181156df8199a187d0c9a1a8eab59f3e1143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edd053b724882a2792815d478302181156df8199a187d0c9a1a8eab59f3e1143", kill_on_drop: false }`
[INFO] [stdout] edd053b724882a2792815d478302181156df8199a187d0c9a1a8eab59f3e1143
