[INFO] fetching crate alchemyst 0.51.0...
[INFO] testing alchemyst-0.51.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate alchemyst 0.51.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate alchemyst 0.51.0
[INFO] finished tweaking crates.io crate alchemyst 0.51.0
[INFO] tweaked toml for crates.io crate alchemyst 0.51.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate alchemyst 0.51.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate alchemyst 0.51.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68aa448956174d94614ef80e183da44612b40a9505768e721312d17a408cd9a1
[INFO] running `Command { std: "docker" "start" "-a" "68aa448956174d94614ef80e183da44612b40a9505768e721312d17a408cd9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68aa448956174d94614ef80e183da44612b40a9505768e721312d17a408cd9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68aa448956174d94614ef80e183da44612b40a9505768e721312d17a408cd9a1", kill_on_drop: false }`
[INFO] [stdout] 68aa448956174d94614ef80e183da44612b40a9505768e721312d17a408cd9a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a07e07534d9fdbc319ac18922cd615fe37c4e850624e05898d62c6cb48026674
[INFO] running `Command { std: "docker" "start" "-a" "a07e07534d9fdbc319ac18922cd615fe37c4e850624e05898d62c6cb48026674", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling as-slice v0.2.1
[INFO] [stderr]    Compiling pest v2.8.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling built v0.8.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling av-scenechange v0.14.1
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling aligned v0.4.3
[INFO] [stderr]    Compiling nom v8.0.0
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling y4m v0.8.0
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling zmij v1.0.14
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling rav1e v0.8.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling pastey v0.1.1
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling flate2 v1.1.8
[INFO] [stderr]    Compiling bitstream-io v4.9.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling petgraph v0.8.3
[INFO] [stderr]    Compiling pest_meta v2.8.5
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling imgref v1.12.0
[INFO] [stderr]    Compiling zune-core v0.4.12
[INFO] [stderr]    Compiling noop_proc_macro v0.3.0
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling weezl v0.1.12
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling loop9 v0.1.5
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling zune-jpeg v0.4.21
[INFO] [stderr]    Compiling pxfm v0.1.27
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling rstar v0.12.2
[INFO] [stderr]    Compiling vek v0.17.2
[INFO] [stderr]    Compiling maybe-rayon v0.1.1
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling serde_spanned v1.0.4
[INFO] [stderr]    Compiling toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]    Compiling avif-serialize v0.8.6
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling zune-core v0.5.1
[INFO] [stderr]    Compiling clap_lex v0.7.7
[INFO] [stderr]    Compiling lebe v0.5.3
[INFO] [stderr]    Compiling rgb v0.8.52
[INFO] [stderr]    Compiling toml_parser v1.0.6+spec-1.1.0
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling bit_field v0.10.3
[INFO] [stderr]    Compiling toml_writer v1.0.6+spec-1.1.0
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling gif v0.14.1
[INFO] [stderr]    Compiling png v0.18.0
[INFO] [stderr]    Compiling clap_builder v4.5.54
[INFO] [stderr]    Compiling zune-jpeg v0.5.9
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling toml v0.9.11+spec-1.1.0
[INFO] [stderr]    Compiling image-webp v0.2.4
[INFO] [stderr]    Compiling pest_generator v2.8.5
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/dec9417b8611e34e787a3e4c37686b5131f9e5c5/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=fcb77f2792d18b7a -C extra-filename=-d299d106f515569b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-fce1a70fd2c3744d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e054a971070e2c6a.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9533002ac35f5809.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a07e07534d9fdbc319ac18922cd615fe37c4e850624e05898d62c6cb48026674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07e07534d9fdbc319ac18922cd615fe37c4e850624e05898d62c6cb48026674", kill_on_drop: false }`
[INFO] [stdout] a07e07534d9fdbc319ac18922cd615fe37c4e850624e05898d62c6cb48026674