[INFO] fetching crate rpsmon 0.1.0...
[INFO] testing rpsmon-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rpsmon 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rpsmon 0.1.0
[INFO] finished tweaking crates.io crate rpsmon 0.1.0
[INFO] tweaked toml for crates.io crate rpsmon 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rpsmon 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] crate crates.io crate rpsmon 0.1.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dcd62ce75486b8bd3481b50d335a341b8b9afc021c45815726ec58a9e8c78cc2
[INFO] running `Command { std: "docker" "start" "-a" "dcd62ce75486b8bd3481b50d335a341b8b9afc021c45815726ec58a9e8c78cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcd62ce75486b8bd3481b50d335a341b8b9afc021c45815726ec58a9e8c78cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd62ce75486b8bd3481b50d335a341b8b9afc021c45815726ec58a9e8c78cc2", kill_on_drop: false }`
[INFO] [stdout] dcd62ce75486b8bd3481b50d335a341b8b9afc021c45815726ec58a9e8c78cc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ab0a83ad52700cf2d9985c6e286a29f4ba7157789058bf04f935997862bc49b0
[INFO] running `Command { std: "docker" "start" "-a" "ab0a83ad52700cf2d9985c6e286a29f4ba7157789058bf04f935997862bc49b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling hashbrown v0.17.0
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling winnow v0.7.15
[INFO] [stderr]    Compiling compact_str v0.7.1
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.23
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling unicode-truncate v1.1.0
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling crossterm v0.27.0
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling sysinfo v0.30.13
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling stability v0.2.1
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio v1.52.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling ratatui v0.27.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling rpsmon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `split` found for enum `std::option::Option<T>` in the current scope
[INFO] [stdout]   --> src/process.rs:89:65
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         let ip = line.split_whitespace().nth(1).split('/').next().unwrap_or("").to_string();
[INFO] [stdout]    |                                  ----                           ^^^^^ method not found in `std::option::Option<&str>`
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  method `split` is available on `&str`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `split` exists on the type `&str`
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/str/mod.rs:1651:4
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `&str` value, panicking if the value is an `Option::None`
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         let ip = line.split_whitespace().nth(1).expect("REASON").split('/').next().unwrap_or("").to_string();
[INFO] [stdout]    |                                                                +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/process.rs:441:29
[INFO] [stdout]     |
[INFO] [stdout] 441 |     fn parse_vm_stat(&self, key: &str) -> Option<u64> {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/widgets/system_info.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let mut banner_lines: Vec<Line> = RPS_BANNER.lines()
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rpsmon` (bin "rpsmon") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ab0a83ad52700cf2d9985c6e286a29f4ba7157789058bf04f935997862bc49b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0a83ad52700cf2d9985c6e286a29f4ba7157789058bf04f935997862bc49b0", kill_on_drop: false }`
[INFO] [stdout] ab0a83ad52700cf2d9985c6e286a29f4ba7157789058bf04f935997862bc49b0
