[INFO] fetching crate vibrant 0.1.0...
[INFO] testing vibrant-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate vibrant 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate vibrant 0.1.0
[INFO] finished tweaking crates.io crate vibrant 0.1.0
[INFO] tweaked toml for crates.io crate vibrant 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vibrant 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 43 packages to latest compatible versions
[INFO] [stderr]       Adding clippy v0.0.15 (available: v0.0.302)
[INFO] [stderr]       Adding image v0.3.15 (available: v0.25.10)
[INFO] [stderr]       Adding itertools v0.3.25 (available: v0.14.0)
[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] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 915b80a83a3de7b5c72d5015b798a6b4c0a61a5ee53f0d8fee0fe4b6f3ffd02b
[INFO] running `Command { std: "docker" "start" "-a" "915b80a83a3de7b5c72d5015b798a6b4c0a61a5ee53f0d8fee0fe4b6f3ffd02b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "915b80a83a3de7b5c72d5015b798a6b4c0a61a5ee53f0d8fee0fe4b6f3ffd02b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915b80a83a3de7b5c72d5015b798a6b4c0a61a5ee53f0d8fee0fe4b6f3ffd02b", kill_on_drop: false }`
[INFO] [stdout] 915b80a83a3de7b5c72d5015b798a6b4c0a61a5ee53f0d8fee0fe4b6f3ffd02b
[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=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] 7dd44193943c406e31c75130f7114ba84744cf7193b25bef230c96da61020272
[INFO] running `Command { std: "docker" "start" "-a" "7dd44193943c406e31c75130f7114ba84744cf7193b25bef230c96da61020272", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling num-bigint v0.1.45
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling num-complex v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.43
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling simd-adler32 v0.3.9
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling lzw v0.8.0
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling gif v0.5.1
[INFO] [stderr]    Compiling byteorder v0.3.13
[INFO] [stderr]    Compiling hsl v0.1.1
[INFO] [stderr]    Compiling itertools v0.3.25
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling png v0.3.1
[INFO] [stdout] error: no rules expected `flags`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/png-0.3.1/src/common.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     flags Transformations: u32 {
[INFO] [stdout]     |     ^^^^^ no rules expected this token in macro call
[INFO] [stdout]     |
[INFO] [stdout] note: while trying to match keyword `struct`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bitflags-2.11.1/src/lib.rs:459:18
[INFO] [stdout]     |
[INFO] [stdout] 459 |         $vis:vis struct $BitFlags:ident: $T:ty {
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `png` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7dd44193943c406e31c75130f7114ba84744cf7193b25bef230c96da61020272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd44193943c406e31c75130f7114ba84744cf7193b25bef230c96da61020272", kill_on_drop: false }`
[INFO] [stdout] 7dd44193943c406e31c75130f7114ba84744cf7193b25bef230c96da61020272
