[INFO] fetching crate wasmer-middlewares 2.0.0...
[INFO] testing wasmer-middlewares-2.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wasmer-middlewares 2.0.0 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate wasmer-middlewares 2.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-middlewares 2.0.0
[INFO] finished tweaking crates.io crate wasmer-middlewares 2.0.0
[INFO] tweaked toml for crates.io crate wasmer-middlewares 2.0.0 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.74.0
[INFO] [stderr]   Downloaded cranelift-entity v0.74.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.74.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.74.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.74.0
[INFO] [stderr]   Downloaded wasmer-compiler-cranelift v2.0.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.74.0
[INFO] [stderr]   Downloaded wasmer-object v2.0.0
[INFO] [stderr]   Downloaded wasmer-engine-universal v2.0.0
[INFO] [stderr]   Downloaded wasmer-engine-dylib v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a708b1c2c041239b847b2b67c62d330ebe86ab85ee3fa0e2f11b90193802c2f
[INFO] running `Command { std: "docker" "start" "-a" "0a708b1c2c041239b847b2b67c62d330ebe86ab85ee3fa0e2f11b90193802c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a708b1c2c041239b847b2b67c62d330ebe86ab85ee3fa0e2f11b90193802c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a708b1c2c041239b847b2b67c62d330ebe86ab85ee3fa0e2f11b90193802c2f", kill_on_drop: false }`
[INFO] [stdout] 0a708b1c2c041239b847b2b67c62d330ebe86ab85ee3fa0e2f11b90193802c2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e5ec387683b763b93048c4dfc16e80c50ca860e2f758de50113d642a4c178d8
[INFO] running `Command { std: "docker" "start" "-a" "1e5ec387683b763b93048c4dfc16e80c50ca860e2f758de50113d642a4c178d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling target-lexicon v0.12.2
[INFO] [stderr]    Compiling rkyv v0.6.7
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling cranelift-entity v0.74.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.74.0
[INFO] [stderr]    Compiling wasmparser v0.78.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v2.0.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling tracing-core v0.1.19
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling memmap2 v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling wast v38.0.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling regalloc v0.0.31
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.74.0
[INFO] [stderr]    Compiling cranelift-bforest v0.74.0
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr] error: could not compile `cranelift-codegen-meta`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cranelift_codegen_meta --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-meta-0.74.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=c59a6b6606e1a6b7 -C extra-filename=-c59a6b6606e1a6b7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cranelift_codegen_shared=/opt/rustwide/target/debug/deps/libcranelift_codegen_shared-559ae180195fc281.rmeta --extern cranelift_entity=/opt/rustwide/target/debug/deps/libcranelift_entity-ff413cd271f8bffd.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: build failed
[INFO] running `Command { std: "docker" "inspect" "1e5ec387683b763b93048c4dfc16e80c50ca860e2f758de50113d642a4c178d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e5ec387683b763b93048c4dfc16e80c50ca860e2f758de50113d642a4c178d8", kill_on_drop: false }`
[INFO] [stdout] 1e5ec387683b763b93048c4dfc16e80c50ca860e2f758de50113d642a4c178d8