[INFO] cloning repository https://github.com/cat16/fractal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cat16/fractal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcat16%2Ffractal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcat16%2Ffractal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e74f8b0b37cd3d6515a8c0db4c4e7239a9647d16
[INFO] checking cat16/fractal against try#50f413885985a8b0a0b6ca0766a0aedd45304953 for pr-155657-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcat16%2Ffractal" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cat16/fractal
[INFO] finished tweaking git repo https://github.com/cat16/fractal
[INFO] tweaked toml for git repo https://github.com/cat16/fractal written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cat16/fractal on toolchain 50f413885985a8b0a0b6ca0766a0aedd45304953
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cat16/fractal 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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayland-protocols-plasma v0.3.6
[INFO] [stderr]   Downloaded quick-xml v0.37.3
[INFO] [stderr]   Downloaded pollster v0.3.0
[INFO] [stderr]   Downloaded wgpu v24.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eecf3ea1eddad54325089362bfcd0f37a8d15436d53f03c506b52e117b3c5ad4
[INFO] running `Command { std: "docker" "start" "-a" "eecf3ea1eddad54325089362bfcd0f37a8d15436d53f03c506b52e117b3c5ad4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eecf3ea1eddad54325089362bfcd0f37a8d15436d53f03c506b52e117b3c5ad4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eecf3ea1eddad54325089362bfcd0f37a8d15436d53f03c506b52e117b3c5ad4", kill_on_drop: false }`
[INFO] [stdout] eecf3ea1eddad54325089362bfcd0f37a8d15436d53f03c506b52e117b3c5ad4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53800daed9e27dae12e385ff866549d71c10ebe89847e1ecbd0cd0823d8d0275
[INFO] running `Command { std: "docker" "start" "-a" "53800daed9e27dae12e385ff866549d71c10ebe89847e1ecbd0cd0823d8d0275", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quick-xml v0.37.3
[INFO] [stderr]    Compiling wayland-client v0.31.8
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling naga v24.0.0
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling ash v0.38.0+1.3.281
[INFO] [stderr]     Checking indexmap v2.8.0
[INFO] [stderr]    Compiling wgpu-hal v24.0.2
[INFO] [stderr]     Checking ttf-parser v0.25.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]    Compiling wgpu-core v24.0.2
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking profiling v1.0.16
[INFO] [stderr]    Compiling wayland-sys v0.31.6
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
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[INFO] [stderr]    Compiling wayland-backend v0.3.8
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[INFO] [stderr]    Compiling bytemuck_derive v1.9.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling strum_macros v0.26.4
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[INFO] [stderr]     Checking x11rb v0.13.1
[INFO] [stderr]     Checking wayland-protocols-wlr v0.3.6
[INFO] [stderr]     Checking wayland-protocols-plasma v0.3.6
[INFO] [stderr]     Checking smithay-client-toolkit v0.19.2
[INFO] [stderr]     Checking sctk-adwaita v0.10.1
[INFO] [stderr]     Checking fractal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `bigint_helper_methods`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bigint_helper_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `bigint_helper_methods`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bigint_helper_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `widening_mul`
[INFO] [stdout]    --> src/util/fixed/op.rs:221:36
[INFO] [stdout]     |
[INFO] [stdout] 221 |                 let (lsb, msb) = x.widening_mul(y);
[INFO] [stdout]     |                                    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #152016 <https://github.com/rust-lang/rust/issues/152016> for more information
[INFO] [stdout]     = help: add `#![feature(widening_mul)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `widening_mul`
[INFO] [stdout]    --> src/util/fixed/op.rs:221:36
[INFO] [stdout]     |
[INFO] [stdout] 221 |                 let (lsb, msb) = x.widening_mul(y);
[INFO] [stdout]     |                                    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #152016 <https://github.com/rust-lang/rust/issues/152016> for more information
[INFO] [stdout]     = help: add `#![feature(widening_mul)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fractal` (bin "fractal") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fractal` (bin "fractal" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "53800daed9e27dae12e385ff866549d71c10ebe89847e1ecbd0cd0823d8d0275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53800daed9e27dae12e385ff866549d71c10ebe89847e1ecbd0cd0823d8d0275", kill_on_drop: false }`
[INFO] [stdout] 53800daed9e27dae12e385ff866549d71c10ebe89847e1ecbd0cd0823d8d0275
