[INFO] cloning repository https://github.com/capnfabs/blitz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/capnfabs/blitz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcapnfabs%2Fblitz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcapnfabs%2Fblitz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8487618cb0ba1b04b293defc2f09a4e749b23f1
[INFO] checking capnfabs/blitz against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcapnfabs%2Fblitz" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/capnfabs/blitz on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/capnfabs/blitz
[INFO] finished tweaking git repo https://github.com/capnfabs/blitz
[INFO] tweaked toml for git repo https://github.com/capnfabs/blitz written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/capnfabs/blitz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded svgfilters v0.1.0
[INFO] [stderr]   Downloaded hdrhistogram v7.1.0
[INFO] [stderr]   Downloaded libssh2-sys v0.2.17
[INFO] [stderr]   Downloaded splines v3.4.1
[INFO] [stderr]   Downloaded unicode-script v0.5.0
[INFO] [stderr]   Downloaded harfbuzz-sys v0.3.4
[INFO] [stderr]   Downloaded iterm2 v0.2.1
[INFO] [stderr]   Downloaded tristate v0.1.1
[INFO] [stderr]   Downloaded kurbo v0.5.8
[INFO] [stderr]   Downloaded ttf-parser v0.3.0
[INFO] [stderr]   Downloaded cbindgen v0.14.2
[INFO] [stderr]   Downloaded harfbuzz_rs v1.0.1
[INFO] [stderr]   Downloaded svg v0.7.1
[INFO] [stderr]   Downloaded usvg v0.9.0
[INFO] [stderr]   Downloaded resvg v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 557251dc7d7352c83716060be95aae132d9ec5c136f87bf11996ac8431f37029
[INFO] running `Command { std: "docker" "start" "-a" "557251dc7d7352c83716060be95aae132d9ec5c136f87bf11996ac8431f37029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "557251dc7d7352c83716060be95aae132d9ec5c136f87bf11996ac8431f37029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557251dc7d7352c83716060be95aae132d9ec5c136f87bf11996ac8431f37029", kill_on_drop: false }`
[INFO] [stdout] 557251dc7d7352c83716060be95aae132d9ec5c136f87bf11996ac8431f37029
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fb62d78b5def79f0a2dfbddc0f5e3a8127f9c185f5d17bcf0784e8fa0e0bd05
[INFO] running `Command { std: "docker" "start" "-a" "9fb62d78b5def79f0a2dfbddc0f5e3a8127f9c185f5d17bcf0784e8fa0e0bd05", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling siphasher v0.3.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking tristate v0.1.1
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking bitbit v0.2.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.3
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking splines v3.4.1
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking xmlparser v0.13.0
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking ttf-parser v0.3.0
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking rgb v0.8.16
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking unicode-script v0.5.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking svg v0.7.1
[INFO] [stderr]     Checking histogram v0.6.9
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling cbindgen v0.14.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=295fc4a844acb51a -C extra-filename=-295fc4a844acb51a --out-dir /opt/rustwide/target/debug/build/syn-295fc4a844acb51a -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" "9fb62d78b5def79f0a2dfbddc0f5e3a8127f9c185f5d17bcf0784e8fa0e0bd05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fb62d78b5def79f0a2dfbddc0f5e3a8127f9c185f5d17bcf0784e8fa0e0bd05", kill_on_drop: false }`
[INFO] [stdout] 9fb62d78b5def79f0a2dfbddc0f5e3a8127f9c185f5d17bcf0784e8fa0e0bd05