[INFO] fetching crate wasmer 3.1.0...
[INFO] testing wasmer-3.1.0 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate wasmer 3.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate wasmer 3.1.0 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer 3.1.0
[INFO] finished tweaking crates.io crate wasmer 3.1.0
[INFO] tweaked toml for crates.io crate wasmer 3.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmer-compiler-singlepass v3.1.0
[INFO] [stderr]   Downloaded wasmer-object v3.1.0
[INFO] [stderr]   Downloaded wasmer-compiler-llvm v3.1.0
[INFO] [stderr]   Downloaded inkwell_internals v0.5.0
[INFO] [stderr]   Downloaded inkwell v0.1.0-beta.4
[INFO] [stderr]   Downloaded macro-wasmer-universal-test v3.1.0
[INFO] [stderr]   Downloaded llvm-sys v120.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c6e543ce5db6093ad160023c1a304a1ee8a94053ead83c839f93ff0e97bd4fd
[INFO] running `Command { std: "docker" "start" "-a" "4c6e543ce5db6093ad160023c1a304a1ee8a94053ead83c839f93ff0e97bd4fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c6e543ce5db6093ad160023c1a304a1ee8a94053ead83c839f93ff0e97bd4fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6e543ce5db6093ad160023c1a304a1ee8a94053ead83c839f93ff0e97bd4fd", kill_on_drop: false }`
[INFO] [stdout] 4c6e543ce5db6093ad160023c1a304a1ee8a94053ead83c839f93ff0e97bd4fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 089d43056e09602ccf02c6176c80585931b511f4f42126d907bddee583769659
[INFO] running `Command { std: "docker" "start" "-a" "089d43056e09602ccf02c6176c80585931b511f4f42126d907bddee583769659", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.5
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling cranelift-isle v0.86.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.86.1
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling object v0.30.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling slice-group-by v0.3.0
[INFO] [stderr]    Compiling cranelift-entity v0.86.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling wasm-encoder v0.22.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.86.1
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v3.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling cranelift-bforest v0.86.1
[INFO] [stderr]    Compiling regalloc2 v0.3.2
[INFO] [stderr]    Compiling wast v52.0.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling rayon v1.6.1
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling darling_core v0.14.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling wat v1.0.55
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.107/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 -C debuginfo=2 --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"' --cfg 'feature="visit-mut"' -C metadata=3c5363ebd6f7849f -C extra-filename=-3c5363ebd6f7849f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d9fe6e0f6cdad197.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5509efe862298d6f.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-488d9b1a6199d7b2.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "089d43056e09602ccf02c6176c80585931b511f4f42126d907bddee583769659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "089d43056e09602ccf02c6176c80585931b511f4f42126d907bddee583769659", kill_on_drop: false }`
[INFO] [stdout] 089d43056e09602ccf02c6176c80585931b511f4f42126d907bddee583769659