[INFO] cloning repository https://github.com/sigpher/fmc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sigpher/fmc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsigpher%2Ffmc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsigpher%2Ffmc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1eedea7533dfce3d0dba2a44479f3d5744698b86
[INFO] testing sigpher/fmc against 1.95.0 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsigpher%2Ffmc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sigpher/fmc
[INFO] finished tweaking git repo https://github.com/sigpher/fmc
[INFO] tweaked toml for git repo https://github.com/sigpher/fmc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sigpher/fmc on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sigpher/fmc 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64ct v1.8.1
[INFO] [stderr]   Downloaded match_token v0.35.0
[INFO] [stderr]   Downloaded markup5ever v0.35.0
[INFO] [stderr]   Downloaded serde_spanned v1.0.3
[INFO] [stderr]   Downloaded psl-types v2.0.11
[INFO] [stderr]   Downloaded scraper v0.24.0
[INFO] [stderr]   Downloaded servo_arc v0.4.3
[INFO] [stderr]   Downloaded serde-untagged v0.1.9
[INFO] [stderr]   Downloaded pest_generator v2.8.4
[INFO] [stderr]   Downloaded pest_meta v2.8.4
[INFO] [stderr]   Downloaded config v0.15.19
[INFO] [stderr]   Downloaded yaml-rust2 v0.10.4
[INFO] [stderr]   Downloaded pest v2.8.4
[INFO] [stderr]   Downloaded tokio-util v0.7.17
[INFO] [stderr]   Downloaded h2 v0.4.12
[INFO] [stderr]   Downloaded publicsuffix v2.3.0
[INFO] [stderr]   Downloaded rsa v0.9.9
[INFO] [stderr]   Downloaded rustls-pki-types v1.13.1
[INFO] [stderr]   Downloaded tower-http v0.6.7
[INFO] [stderr]   Downloaded html5ever v0.35.0
[INFO] [stderr]   Downloaded pest_derive v2.8.4
[INFO] [stderr]   Downloaded toml v0.9.8
[INFO] [stderr]   Downloaded cookie_store v0.21.1
[INFO] [stderr]   Downloaded web_atoms v0.1.3
[INFO] [stderr]   Downloaded cssparser v0.35.0
[INFO] [stderr]   Downloaded selectors v0.31.0
[INFO] [stderr]   Downloaded ego-tree v0.10.0
[INFO] [stderr]   Downloaded getopts v0.2.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e92054b96e439fedcb552d05a8d9e35f3f9dd5915bba6e408fcd2f67047e371e
[INFO] running `Command { std: "docker" "start" "-a" "e92054b96e439fedcb552d05a8d9e35f3f9dd5915bba6e408fcd2f67047e371e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e92054b96e439fedcb552d05a8d9e35f3f9dd5915bba6e408fcd2f67047e371e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e92054b96e439fedcb552d05a8d9e35f3f9dd5915bba6e408fcd2f67047e371e", kill_on_drop: false }`
[INFO] [stdout] e92054b96e439fedcb552d05a8d9e35f3f9dd5915bba6e408fcd2f67047e371e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2706ec66a31fe6238203f378a5c31051cd001e1c19d3520d42fac25e56c46117
[INFO] running `Command { std: "docker" "start" "-a" "2706ec66a31fe6238203f378a5c31051cd001e1c19d3520d42fac25e56c46117", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bytes v1.11.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.5
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling icu_properties_data v2.1.1
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling tracing-core v0.1.35
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling cc v1.2.49
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling hashlink v0.10.0
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling pest v2.8.4
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling web_atoms v0.1.3
[INFO] [stderr]    Compiling cookie v0.18.1
[INFO] [stderr]    Compiling erased-serde v0.4.9
[INFO] [stderr]    Compiling dtoa v1.0.10
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling selectors v0.31.0
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.7
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling psl-types v2.0.11
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling pest_meta v2.8.4
[INFO] [stderr]    Compiling dlv-list v0.5.2
[INFO] [stderr]    Compiling dotenvy v0.15.7
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling serde_spanned v1.0.3
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]    Compiling ordered-multimap v0.7.3
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling servo_arc v0.4.3
[INFO] [stderr] error: could not compile `futures-util` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.95.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-0.3.31/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 --warn=unreachable_pub --warn=unexpected_cfgs --warn=single_use_lifetimes --warn=rust_2018_idioms --warn=missing_debug_implementations --check-cfg 'cfg(futures_sanitizer)' --cfg 'feature="alloc"' --cfg 'feature="futures-io"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "async-await", "async-await-macro", "bilock", "cfg-target-has-atomic", "channel", "compat", "default", "futures-channel", "futures-io", "futures-macro", "futures-sink", "futures_01", "io", "io-compat", "memchr", "portable-atomic", "sink", "slab", "std", "tokio-io", "unstable", "write-all-vectored"))' -C metadata=5d3ff3ea7369ab23 -C extra-filename=-5ef8e73222cb2cfa --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-8350092af0f0339b.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-dbc1295f25e4d362.rmeta --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-bf9c7f407f2410e6.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-3c0c581cbf2d293a.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-6b1031f806b9757b.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-8cda137948184924.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-9ccfc56f2c5b0c36.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-75fedd8e969a9924.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/1.95.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.111/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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=ca54a0e8f269ce1e -C extra-filename=-52bc1d7af5a6b8e8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4614f678505e3631.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0068115ac042cbaf.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9585ebe1b7d486be.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "2706ec66a31fe6238203f378a5c31051cd001e1c19d3520d42fac25e56c46117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2706ec66a31fe6238203f378a5c31051cd001e1c19d3520d42fac25e56c46117", kill_on_drop: false }`
[INFO] [stdout] 2706ec66a31fe6238203f378a5c31051cd001e1c19d3520d42fac25e56c46117