[INFO] cloning repository https://github.com/rcorre/boxt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rcorre/boxt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcorre%2Fboxt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcorre%2Fboxt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12d6908caa0b1b37ba2bcc003967d377a4a61684
[INFO] testing rcorre/boxt against beta-2025-10-28 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcorre%2Fboxt" "/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/rcorre/boxt
[INFO] finished tweaking git repo https://github.com/rcorre/boxt
[INFO] tweaked toml for git repo https://github.com/rcorre/boxt written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rcorre/boxt on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rcorre/boxt 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da988c2a0edebebaed2e5225117209a223c33654df7968692e31dd174460fb77
[INFO] running `Command { std: "docker" "start" "-a" "da988c2a0edebebaed2e5225117209a223c33654df7968692e31dd174460fb77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da988c2a0edebebaed2e5225117209a223c33654df7968692e31dd174460fb77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da988c2a0edebebaed2e5225117209a223c33654df7968692e31dd174460fb77", kill_on_drop: false }`
[INFO] [stdout] da988c2a0edebebaed2e5225117209a223c33654df7968692e31dd174460fb77
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4f27df23d68cbddd89f9ef20165a48776cbf62cb1b659ce403d754a3b50ddc3
[INFO] running `Command { std: "docker" "start" "-a" "c4f27df23d68cbddd89f9ef20165a48776cbf62cb1b659ce403d754a3b50ddc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling anstyle-parse v0.2.5
[INFO] [stderr]    Compiling colorchoice v1.0.2
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling anstyle-query v1.1.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling winnow v0.6.18
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]    Compiling anstream v0.6.15
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling castaway v0.2.3
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling compact_str v0.8.0
[INFO] [stderr]    Compiling clap_builder v4.5.17
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling xdg v2.5.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling indexmap v2.5.0
[INFO] [stderr]    Compiling lru v0.12.4
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling unicode-truncate v1.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling clap_derive v4.5.13
[INFO] [stderr]    Compiling instability v0.3.2
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling env_filter v0.1.2
[INFO] [stderr]    Compiling env_logger v0.11.5
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling ratatui v0.28.1
[INFO] [stderr]    Compiling clap v4.5.17
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling serde_spanned v0.6.7
[INFO] [stderr]    Compiling toml_edit v0.22.20
[INFO] [stderr]    Compiling toml v0.8.19
[INFO] [stderr]    Compiling boxt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> src/canvas.rs:241:18
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let Some(top) = self.find(origin, 0, -1, &[Line::CORNER]) else {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> src/canvas.rs:244:18
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let Some(bottom) = self.find(origin, 0, 1, &[Line::CORNER]) else {
[INFO] [stdout]     |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `boxt` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c4f27df23d68cbddd89f9ef20165a48776cbf62cb1b659ce403d754a3b50ddc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4f27df23d68cbddd89f9ef20165a48776cbf62cb1b659ce403d754a3b50ddc3", kill_on_drop: false }`
[INFO] [stdout] c4f27df23d68cbddd89f9ef20165a48776cbf62cb1b659ce403d754a3b50ddc3