[INFO] fetching crate wasmtime-rust 0.21.0...
[INFO] testing wasmtime-rust-0.21.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate wasmtime-rust 0.21.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate wasmtime-rust 0.21.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmtime-rust 0.21.0
[INFO] finished tweaking crates.io crate wasmtime-rust 0.21.0
[INFO] tweaked toml for crates.io crate wasmtime-rust 0.21.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmtime-rust-macro v0.21.0
[INFO] [stderr]   Downloaded directories-next v1.0.3
[INFO] [stderr]   Downloaded wasmtime-cache v0.21.0
[INFO] [stderr]   Downloaded wasmtime-wasi v0.21.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad2641f53bbcdee175864e6120f5b0180caa23bfb1e74a27d2856cb461182001
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ad2641f53bbcdee175864e6120f5b0180caa23bfb1e74a27d2856cb461182001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad2641f53bbcdee175864e6120f5b0180caa23bfb1e74a27d2856cb461182001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2641f53bbcdee175864e6120f5b0180caa23bfb1e74a27d2856cb461182001", kill_on_drop: false }`
[INFO] [stdout] ad2641f53bbcdee175864e6120f5b0180caa23bfb1e74a27d2856cb461182001
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2fbd665e63201861072b88b27b68e1248875e603620ad515f7a7b0ae8c768ae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b2fbd665e63201861072b88b27b68e1248875e603620ad515f7a7b0ae8c768ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling wasmparser v0.65.0
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling wasmparser v0.57.0
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling wasmtime-cache v0.21.0
[INFO] [stderr]    Compiling wasi-common v0.21.0
[INFO] [stderr]    Compiling wasmtime-wasi v0.21.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling dirs-sys-next v0.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling regalloc v0.0.31
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling wast v22.0.0
[INFO] [stderr]    Compiling wast v30.0.0
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling directories-next v1.0.3
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling wasmtime-rust-macro v0.21.0
[INFO] [stderr]    Compiling shellexpand v2.1.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling yanix v0.21.0
[INFO] [stderr]    Compiling file-per-thread-logger v0.1.4
[INFO] [stderr]    Compiling witx v0.8.7
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]    Compiling cranelift-bforest v0.68.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]    Compiling psm v0.1.12
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling wasmtime-runtime v0.21.0
[INFO] [stderr]    Compiling wiggle-generate v0.21.0
[INFO] [stderr]    Compiling wat v1.0.31
[INFO] [stderr]    Compiling wig v0.21.0
[INFO] [stderr]    Compiling wiggle-macro v0.21.0
[INFO] [stderr]    Compiling wasmtime-wiggle-macro v0.21.0
[INFO] [stderr] error: could not compile `wast`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name wast --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wast-30.0.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="wasm-module"' -C metadata=7ecbef808276fe96 -C extra-filename=-7ecbef808276fe96 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern leb128=/opt/rustwide/target/debug/deps/libleb128-5860443d399eefb9.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" "b2fbd665e63201861072b88b27b68e1248875e603620ad515f7a7b0ae8c768ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2fbd665e63201861072b88b27b68e1248875e603620ad515f7a7b0ae8c768ae", kill_on_drop: false }`
[INFO] [stdout] b2fbd665e63201861072b88b27b68e1248875e603620ad515f7a7b0ae8c768ae