[INFO] fetching crate necessist-backends 2.2.0...
[INFO] testing necessist-backends-2.2.0 against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] extracting crate necessist-backends 2.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate necessist-backends 2.2.0
[INFO] finished tweaking crates.io crate necessist-backends 2.2.0
[INFO] tweaked toml for crates.io crate necessist-backends 2.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate necessist-backends 2.2.0 on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate necessist-backends 2.2.0 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1
[INFO] running `Command { std: "docker" "start" "6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1", 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" "6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1", 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" "6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling writeable v0.6.2
[INFO] [stderr]    Compiling litemap v0.8.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling icu_properties_data v2.1.2
[INFO] [stderr]    Compiling icu_normalizer_data v2.1.1
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling zerocopy v0.8.47
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling tree-sitter-language v0.1.7
[INFO] [stderr]    Compiling camino v1.2.2
[INFO] [stderr]    Compiling better_scoped_tls v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling swc_visit v2.0.1
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling vergen-lib v9.1.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling unicode-id-start v1.4.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling vergen v9.1.0
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling dragonbox_ecma v0.1.12
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling nix v0.31.2
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling ena v0.14.4
[INFO] [stderr]    Compiling libsqlite3-sys v0.36.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling portable-atomic v1.13.1
[INFO] [stderr]    Compiling lalrpop-util v0.20.2
[INFO] [stderr]    Compiling winnow v1.0.0
[INFO] [stderr]    Compiling diesel_derives v2.3.7
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling cc v1.2.57
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling par-core v2.0.0
[INFO] [stderr]    Compiling predicates-core v1.0.10
[INFO] [stderr]    Compiling toml_writer v1.0.7+spec-1.1.0
[INFO] [stderr]    Compiling rlimit v0.11.0
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling toml_parser v1.0.10+spec-1.1.0
[INFO] [stderr]    Compiling cargo-platform v0.3.2
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling toml_datetime v1.0.1+spec-1.1.0
[INFO] [stderr]    Compiling serde_spanned v1.0.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling console v0.16.3
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling openssl-sys v0.9.112
[INFO] [stderr]    Compiling libz-sys v1.1.25
[INFO] [stderr]    Compiling libssh2-sys v0.3.1
[INFO] [stderr]    Compiling libgit2-sys v0.18.3+1.9.2
[INFO] [stderr]    Compiling tree-sitter-go v0.25.0
[INFO] [stderr]    Compiling tree-sitter-php v0.24.2
[INFO] [stderr]    Compiling unit-prefix v0.5.2
[INFO] [stderr]    Compiling termtree v0.5.1
[INFO] [stderr]    Compiling downcast-rs v2.0.2
[INFO] [stderr]    Compiling assert_cmd v2.2.0
[INFO] [stderr]    Compiling indicatif v0.18.4
[INFO] [stderr]    Compiling predicates-tree v1.0.13
[INFO] [stderr]    Compiling predicates v3.1.4
[INFO] [stderr]    Compiling ctrlc v3.5.2
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling swc_allocator v4.0.1
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling toml v1.0.7+spec-1.1.0
[INFO] [stderr]    Compiling tree-sitter v0.26.7
[INFO] [stderr]    Compiling lalrpop v0.20.2
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[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/28f95933dc0727396c07b48d0a8cb5211b7fb472/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.117/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=11d8a14463e390c2 -C extra-filename=-a5dc7090d9899a89 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-81e2f9b85bf7d147.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2bff4e91cd123a98.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f056d175c0a59671.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" "6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1", kill_on_drop: false }`
[INFO] [stdout] 6d047d1cdd1db370634e8b46621f46ec1e974952908c2c8e8837a72ce2a9eef1
