[INFO] cloning repository https://github.com/yashrk/webcam-kaleidoscope
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yashrk/webcam-kaleidoscope" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyashrk%2Fwebcam-kaleidoscope", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyashrk%2Fwebcam-kaleidoscope'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa0aa979d054e919e3b1d2f33afa6b9a74b08ca7
[INFO] checking yashrk/webcam-kaleidoscope against 67a539cbdf2a0107837ce64f9069509a44da67b7 for pr-164053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyashrk%2Fwebcam-kaleidoscope" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yashrk/webcam-kaleidoscope
[INFO] finished tweaking git repo https://github.com/yashrk/webcam-kaleidoscope
[INFO] tweaked toml for git repo https://github.com/yashrk/webcam-kaleidoscope written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yashrk/webcam-kaleidoscope on toolchain 67a539cbdf2a0107837ce64f9069509a44da67b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yashrk/webcam-kaleidoscope 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" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d
[INFO] running `Command { std: "docker" "start" "60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d" "/opt/rustwide/cargo-home/bin/cargo" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d" "/opt/rustwide/cargo-home/bin/cargo" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling prettyplease v0.2.20
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling clang-sys v1.7.0
[INFO] [stderr]     Checking zerocopy v0.7.34
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling libloading v0.8.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling syn v2.0.61
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling bindgen v0.65.1
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking dlv-list v0.5.2
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling miniquad v0.4.0
[INFO] [stderr]     Checking winnow v0.6.8
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking ordered-multimap v0.6.0
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking convert_case v0.6.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]     Checking fontdue v0.7.3
[INFO] [stdout] error[E0658]: use of unstable library feature `liballoc_internals`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fontdue-0.7.3/src/font.rs:273:38
[INFO] [stdout]     |
[INFO] [stdout] 273 |         let mut glyphs: Vec<Glyph> = vec::from_elem(Glyph::default(), glyph_count as usize);
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(liballoc_internals)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-10-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fontdue` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d", kill_on_drop: false }`
[INFO] [stdout] 60fc4a5e71627d174a386c33bb032c42508cfd73f431bb65087c0e29c95b678d
