[INFO] fetching crate wasm-graph 0.1.2...
[INFO] checking wasm-graph-0.1.2 against master#c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b for pr-104616
[INFO] extracting crate wasm-graph 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate wasm-graph 0.1.2 on toolchain c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasm-graph 0.1.2
[INFO] finished tweaking crates.io crate wasm-graph 0.1.2
[INFO] tweaked toml for crates.io crate wasm-graph 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate wasm-graph 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.9
[INFO] [stderr]   Downloaded indoc-impl v0.3.4
[INFO] [stderr]   Downloaded unindent v0.1.4
[INFO] [stderr]   Downloaded wabt v0.9.2
[INFO] [stderr]   Downloaded indoc v0.3.4
[INFO] [stderr]   Downloaded wabt-sys v0.7.0
[INFO] [stderr]   Downloaded parity-wasm v0.40.2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cca0c3967cbbdecd5ae7b52042b0c56930da761f802be94a13dfb8ec1ba9a03b
[INFO] running `Command { std: "docker" "start" "-a" "cca0c3967cbbdecd5ae7b52042b0c56930da761f802be94a13dfb8ec1ba9a03b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cca0c3967cbbdecd5ae7b52042b0c56930da761f802be94a13dfb8ec1ba9a03b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca0c3967cbbdecd5ae7b52042b0c56930da761f802be94a13dfb8ec1ba9a03b", kill_on_drop: false }`
[INFO] [stdout] cca0c3967cbbdecd5ae7b52042b0c56930da761f802be94a13dfb8ec1ba9a03b
[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" "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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecb08b16c5f43148ed2a13b9c6707659ef224f7f3ff0db94409799bf3a873836
[INFO] running `Command { std: "docker" "start" "-a" "ecb08b16c5f43148ed2a13b9c6707659ef224f7f3ff0db94409799bf3a873836", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling unindent v0.1.4
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking parity-wasm v0.40.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling wabt-sys v0.7.0
[INFO] [stderr]     Checking wasm-graph v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking indoc v0.3.4
[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-1.0.101/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=62414ef30df95a33 -C extra-filename=-62414ef30df95a33 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1c4e48b2099e29de.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-d4297481d38d515a.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-b11b8f5ab8860b2d.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] running `Command { std: "docker" "inspect" "ecb08b16c5f43148ed2a13b9c6707659ef224f7f3ff0db94409799bf3a873836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb08b16c5f43148ed2a13b9c6707659ef224f7f3ff0db94409799bf3a873836", kill_on_drop: false }`
[INFO] [stdout] ecb08b16c5f43148ed2a13b9c6707659ef224f7f3ff0db94409799bf3a873836