[INFO] fetching crate sierra-proc-demo 0.2.0...
[INFO] testing sierra-proc-demo-0.2.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate sierra-proc-demo 0.2.0 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate sierra-proc-demo 0.2.0 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 sierra-proc-demo 0.2.0
[INFO] finished tweaking crates.io crate sierra-proc-demo 0.2.0
[INFO] tweaked toml for crates.io crate sierra-proc-demo 0.2.0 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate crates.io crate sierra-proc-demo 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v2.5.1
[INFO] [stderr]   Downloaded pp-rs v0.2.1
[INFO] [stderr]   Downloaded naga v0.5.0
[INFO] [stderr]   Downloaded gpu-alloc v0.4.7
[INFO] [stderr]   Downloaded raw-window-metal v0.1.2
[INFO] [stderr]   Downloaded gpu-alloc-erupt v0.4.0
[INFO] [stderr]   Downloaded layered-bitset v0.1.0
[INFO] [stderr]   Downloaded gpu-descriptor-erupt v0.1.1
[INFO] [stderr]   Downloaded sierra-proc v0.2.0
[INFO] [stderr]   Downloaded sierra v0.2.0
[INFO] [stderr]   Downloaded erupt v0.18.0+174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 52936b41ad7ebbeb0a29b4ec2c423cf343d003c1949e9c1e2e827ffe09f8f7f1
[INFO] running `Command { std: "docker" "start" "-a" "52936b41ad7ebbeb0a29b4ec2c423cf343d003c1949e9c1e2e827ffe09f8f7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52936b41ad7ebbeb0a29b4ec2c423cf343d003c1949e9c1e2e827ffe09f8f7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52936b41ad7ebbeb0a29b4ec2c423cf343d003c1949e9c1e2e827ffe09f8f7f1", kill_on_drop: false }`
[INFO] [stdout] 52936b41ad7ebbeb0a29b4ec2c423cf343d003c1949e9c1e2e827ffe09f8f7f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 5b4cdf1b29c8a5fec403f36f1d56d5c5393a355ccda070cdea1e63213454714b
[INFO] running `Command { std: "docker" "start" "-a" "5b4cdf1b29c8a5fec403f36f1d56d5c5393a355ccda070cdea1e63213454714b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling object v0.24.0
[INFO] [stderr]    Compiling winit v0.25.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling owo-colors v1.3.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling bytemuck v1.7.0
[INFO] [stderr]    Compiling layered-bitset v0.1.0
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling pp-rs v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.68/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=91af19ea0f09d712 -C extra-filename=-91af19ea0f09d712 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "5b4cdf1b29c8a5fec403f36f1d56d5c5393a355ccda070cdea1e63213454714b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4cdf1b29c8a5fec403f36f1d56d5c5393a355ccda070cdea1e63213454714b", kill_on_drop: false }`
[INFO] [stdout] 5b4cdf1b29c8a5fec403f36f1d56d5c5393a355ccda070cdea1e63213454714b