[INFO] fetching crate syntaxdot 0.4.1...
[INFO] testing syntaxdot-0.4.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate syntaxdot 0.4.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate syntaxdot 0.4.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntaxdot 0.4.1
[INFO] finished tweaking crates.io crate syntaxdot 0.4.1
[INFO] tweaked toml for crates.io crate syntaxdot 0.4.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6ff9183a5787ce3c069e5b6d93d0fe1ea952e8fbcf75aaad78c24abbd777c56
[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" "b6ff9183a5787ce3c069e5b6d93d0fe1ea952e8fbcf75aaad78c24abbd777c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6ff9183a5787ce3c069e5b6d93d0fe1ea952e8fbcf75aaad78c24abbd777c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6ff9183a5787ce3c069e5b6d93d0fe1ea952e8fbcf75aaad78c24abbd777c56", kill_on_drop: false }`
[INFO] [stdout] b6ff9183a5787ce3c069e5b6d93d0fe1ea952e8fbcf75aaad78c24abbd777c56
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08358142166cefe1225365681d1a63d5ae9bd37eef9e43fb8e8cfd46f9e35f79
[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" "08358142166cefe1225365681d1a63d5ae9bd37eef9e43fb8e8cfd46f9e35f79", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling anyhow v1.0.47
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling curl v0.4.40
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling seqalign v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling openssl-sys v0.9.71
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.50+curl-7.79.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling caseless v0.2.1
[INFO] [stderr]    Compiling sentencepiece-sys v0.7.1
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling ordered-float v2.8.0
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ndarray v0.15.3
[INFO] [stderr] error: could not compile `petgraph`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name petgraph --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.6.0/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="graphmap"' --cfg 'feature="matrix_graph"' --cfg 'feature="stable_graph"' -C metadata=0fcc233556ccff36 -C extra-filename=-0fcc233556ccff36 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fixedbitset=/opt/rustwide/target/debug/deps/libfixedbitset-b0dc79186127ef5e.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-5cccde57aa7bbf99.rmeta --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" "08358142166cefe1225365681d1a63d5ae9bd37eef9e43fb8e8cfd46f9e35f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08358142166cefe1225365681d1a63d5ae9bd37eef9e43fb8e8cfd46f9e35f79", kill_on_drop: false }`
[INFO] [stdout] 08358142166cefe1225365681d1a63d5ae9bd37eef9e43fb8e8cfd46f9e35f79