[INFO] fetching crate wasm-contract 0.0.0...
[INFO] checking wasm-contract-0.0.0 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate wasm-contract 0.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate wasm-contract 0.0.0 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasm-contract 0.0.0
[INFO] finished tweaking crates.io crate wasm-contract 0.0.0
[INFO] tweaked toml for crates.io crate wasm-contract 0.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 525654fefd5a18bc9de722297cfe4460f715eab05d7c99cf8f82077e8623440a
[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" "525654fefd5a18bc9de722297cfe4460f715eab05d7c99cf8f82077e8623440a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "525654fefd5a18bc9de722297cfe4460f715eab05d7c99cf8f82077e8623440a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "525654fefd5a18bc9de722297cfe4460f715eab05d7c99cf8f82077e8623440a", kill_on_drop: false }`
[INFO] [stdout] 525654fefd5a18bc9de722297cfe4460f715eab05d7c99cf8f82077e8623440a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26f48383371244dc9f7729829e1255ca4a365710da5d3470f9cfa3f363777715
[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" "26f48383371244dc9f7729829e1255ca4a365710da5d3470f9cfa3f363777715", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking wasmparser v0.30.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling wabt-sys v0.5.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.117/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=7e43de673e0d2a0c -C extra-filename=-7e43de673e0d2a0c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8a8bb825df9136cb.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-944c052ceb08ffd8.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-cce7096da6a84492.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid --cfg underscore_consts` (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" "26f48383371244dc9f7729829e1255ca4a365710da5d3470f9cfa3f363777715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26f48383371244dc9f7729829e1255ca4a365710da5d3470f9cfa3f363777715", kill_on_drop: false }`
[INFO] [stdout] 26f48383371244dc9f7729829e1255ca4a365710da5d3470f9cfa3f363777715