[INFO] fetching crate lucet-validate 0.6.1...
[INFO] checking lucet-validate-0.6.1 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate lucet-validate 0.6.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate lucet-validate 0.6.1 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lucet-validate 0.6.1
[INFO] finished tweaking crates.io crate lucet-validate 0.6.1
[INFO] tweaked toml for crates.io crate lucet-validate 0.6.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate lucet-validate 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3383ba0df25f900f016aabfbfd03fc6ec07843a87c3a46c8ceda209bf9ea264
[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" "f3383ba0df25f900f016aabfbfd03fc6ec07843a87c3a46c8ceda209bf9ea264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3383ba0df25f900f016aabfbfd03fc6ec07843a87c3a46c8ceda209bf9ea264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3383ba0df25f900f016aabfbfd03fc6ec07843a87c3a46c8ceda209bf9ea264", kill_on_drop: false }`
[INFO] [stdout] f3383ba0df25f900f016aabfbfd03fc6ec07843a87c3a46c8ceda209bf9ea264
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db4a3e799d8cc8b0357587c558354903c71f9730387e1af74990f77c4bf01507
[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" "db4a3e799d8cc8b0357587c558354903c71f9730387e1af74990f77c4bf01507", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking cranelift-entity v0.51.0
[INFO] [stderr]     Checking wasmparser v0.39.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking wast v3.0.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling wabt-sys v0.7.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[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-1.0.104/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=268f337d750c1119 -C extra-filename=-268f337d750c1119 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6fce1dc21462c4b7.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-41a27e278811dd66.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-02ea28b5fcc7681d.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (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" "db4a3e799d8cc8b0357587c558354903c71f9730387e1af74990f77c4bf01507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db4a3e799d8cc8b0357587c558354903c71f9730387e1af74990f77c4bf01507", kill_on_drop: false }`
[INFO] [stdout] db4a3e799d8cc8b0357587c558354903c71f9730387e1af74990f77c4bf01507