[INFO] fetching crate green-barrel 1.7.8...
[INFO] testing green-barrel-1.7.8 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate green-barrel 1.7.8 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate green-barrel 1.7.8
[INFO] finished tweaking crates.io crate green-barrel 1.7.8
[INFO] tweaked toml for crates.io crate green-barrel 1.7.8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate green-barrel 1.7.8 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 298 packages to latest compatible versions
[INFO] [stderr]       Adding async-lock v2.8.0 (available: v3.4.2)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding image v0.24.9 (available: v0.25.9)
[INFO] [stderr]       Adding mongodb v2.8.2 (available: v3.5.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rust-argon2 v2.1.0 (available: v3.0.0)
[INFO] [stderr]       Adding rust-i18n v2.3.1 (available: v3.1.5)
[INFO] [stderr]       Adding validator v0.16.1 (available: v0.20.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slug v0.1.6
[INFO] [stderr]   Downloaded rand_core v0.9.5
[INFO] [stderr]   Downloaded uuid-macro-internal v1.19.0
[INFO] [stderr]   Downloaded rust-i18n-support v2.3.0
[INFO] [stderr]   Downloaded darling_macro v0.13.4
[INFO] [stderr]   Downloaded validator v0.16.1
[INFO] [stderr]   Downloaded rust-i18n v2.3.1
[INFO] [stderr]   Downloaded unicode-bidi v0.3.18
[INFO] [stderr]   Downloaded lebe v0.5.3
[INFO] [stderr]   Downloaded constant_time_eq v0.3.1
[INFO] [stderr]   Downloaded enum-as-inner v0.4.0
[INFO] [stderr]   Downloaded bit_field v0.10.3
[INFO] [stderr]   Downloaded darling_core v0.13.4
[INFO] [stderr]   Downloaded half v2.7.1
[INFO] [stderr]   Downloaded zune-inflate v0.2.54
[INFO] [stderr]   Downloaded qoi v0.4.1
[INFO] [stderr]   Downloaded serde_with v1.14.0
[INFO] [stderr]   Downloaded trust-dns-resolver v0.21.2
[INFO] [stderr]   Downloaded bson v2.15.0
[INFO] [stderr]   Downloaded exr v1.74.0
[INFO] [stderr]   Downloaded flate2 v1.1.8
[INFO] [stderr]   Downloaded idna v0.4.0
[INFO] [stderr]   Downloaded blake2b_simd v1.0.4
[INFO] [stderr]   Downloaded idna v0.2.3
[INFO] [stderr]   Downloaded trust-dns-proto v0.21.2
[INFO] [stderr]   Downloaded serde_yaml v0.8.26
[INFO] [stderr]   Downloaded toml v0.7.8
[INFO] [stderr]   Downloaded gif v0.13.3
[INFO] [stderr]   Downloaded bytemuck v1.24.0
[INFO] [stderr]   Downloaded simd-adler32 v0.3.8
[INFO] [stderr]   Downloaded unicode-properties v0.1.4
[INFO] [stderr]   Downloaded data-encoding v2.10.0
[INFO] [stderr]   Downloaded typed-builder v0.10.0
[INFO] [stderr]   Downloaded constant_time_eq v0.4.2
[INFO] [stderr]   Downloaded globset v0.4.18
[INFO] [stderr]   Downloaded ignore v0.4.25
[INFO] [stderr]   Downloaded yaml-rust v0.4.5
[INFO] [stderr]   Downloaded deunicode v1.6.2
[INFO] [stderr]   Downloaded rustc_version_runtime v0.2.1
[INFO] [stderr]   Downloaded serde_with_macros v1.5.2
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded resolv-conf v0.7.6
[INFO] [stderr]   Downloaded normpath v1.5.0
[INFO] [stderr]   Downloaded darling v0.13.4
[INFO] [stderr]   Downloaded rust-argon2 v2.1.0
[INFO] [stderr]   Downloaded rust-i18n-macro v2.3.1
[INFO] [stderr]   Downloaded md-5 v0.10.6
[INFO] [stderr]   Downloaded crypto-common v0.1.7
[INFO] [stderr]   Downloaded matches v0.1.10
[INFO] [stderr]   Downloaded globwalk v0.8.1
[INFO] [stderr]   Downloaded weezl v0.1.12
[INFO] [stderr]   Downloaded stringprep v0.1.5
[INFO] [stderr]   Downloaded take_mut v0.2.2
[INFO] [stderr]   Downloaded jpeg-decoder v0.3.2
[INFO] [stderr]   Downloaded tiff v0.9.1
[INFO] [stderr]   Downloaded mongodb v2.8.2
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c947ea8c5e375e58c78b3a62d111a181fb4b134fe3c87f0cae514b99d9988a7
[INFO] running `Command { std: "docker" "start" "-a" "3c947ea8c5e375e58c78b3a62d111a181fb4b134fe3c87f0cae514b99d9988a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c947ea8c5e375e58c78b3a62d111a181fb4b134fe3c87f0cae514b99d9988a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c947ea8c5e375e58c78b3a62d111a181fb4b134fe3c87f0cae514b99d9988a7", kill_on_drop: false }`
[INFO] [stdout] 3c947ea8c5e375e58c78b3a62d111a181fb4b134fe3c87f0cae514b99d9988a7
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 882189e660c6f404a5085f8442fa337903d8d7d4ea905ffdbf4c18a26c625cc0
[INFO] running `Command { std: "docker" "start" "-a" "882189e660c6f404a5085f8442fa337903d8d7d4ea905ffdbf4c18a26c625cc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling zmij v1.0.14
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling tinyvec v1.10.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling unicode-normalization v0.1.25
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling bytes v1.11.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling time-core v0.1.7
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling normpath v1.5.0
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling time-macros v0.2.25
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling flate2 v1.1.8
[INFO] [stderr]    Compiling rustc_version_runtime v0.2.1
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling data-encoding v2.10.0
[INFO] [stderr]    Compiling weezl v0.1.12
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling chrono v0.4.43
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling globset v0.4.18
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling bit_field v0.10.3
[INFO] [stderr]    Compiling unicode-properties v0.1.4
[INFO] [stderr]    Compiling lebe v0.5.3
[INFO] [stderr]    Compiling time v0.3.45
[INFO] [stderr]    Compiling ignore v0.4.25
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling constant_time_eq v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling resolv-conf v0.7.6
[INFO] [stderr]    Compiling gif v0.13.3
[INFO] [stderr]    Compiling stringprep v0.1.5
[INFO] [stderr]    Compiling blake2b_simd v1.0.4
[INFO] [stderr]    Compiling jpeg-decoder v0.3.2
[INFO] [stderr]    Compiling globwalk v0.8.1
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling sha-1 v0.10.1
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling pbkdf2 v0.11.0
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling deunicode v1.6.2
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling toml v0.7.8
[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/2fd6efc32704647e64d3d646d21c4c68eae100e4/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"' --cfg 'feature="visit"' --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=91ba1e3bb5d6963e -C extra-filename=-a2bc1c7eb29b5186 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ebe0071cac2d1a27.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5b137ec77adb5290.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6c0afd1e85ed9e63.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" "882189e660c6f404a5085f8442fa337903d8d7d4ea905ffdbf4c18a26c625cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "882189e660c6f404a5085f8442fa337903d8d7d4ea905ffdbf4c18a26c625cc0", kill_on_drop: false }`
[INFO] [stdout] 882189e660c6f404a5085f8442fa337903d8d7d4ea905ffdbf4c18a26c625cc0