[INFO] cloning repository https://github.com/Kenvyra/okapi-rewrite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kenvyra/okapi-rewrite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKenvyra%2Fokapi-rewrite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKenvyra%2Fokapi-rewrite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a733bee3afca8c5e84bbffead1991f53aabd97c0
[INFO] checking Kenvyra/okapi-rewrite against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKenvyra%2Fokapi-rewrite" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kenvyra/okapi-rewrite on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Kenvyra/okapi-rewrite
[INFO] finished tweaking git repo https://github.com/Kenvyra/okapi-rewrite
[INFO] tweaked toml for git repo https://github.com/Kenvyra/okapi-rewrite written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Kenvyra/okapi-rewrite already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81ff070586390fd4c183cd4cadff71b9b36713437c7151cd762cdfef10c39eff
[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" "81ff070586390fd4c183cd4cadff71b9b36713437c7151cd762cdfef10c39eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81ff070586390fd4c183cd4cadff71b9b36713437c7151cd762cdfef10c39eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81ff070586390fd4c183cd4cadff71b9b36713437c7151cd762cdfef10c39eff", kill_on_drop: false }`
[INFO] [stdout] 81ff070586390fd4c183cd4cadff71b9b36713437c7151cd762cdfef10c39eff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cb485ed9a122490b4d2dbd372041e91fc8474a0e62a949d54718c986a90a7fd
[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" "7cb485ed9a122490b4d2dbd372041e91fc8474a0e62a949d54718c986a90a7fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.3
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking unicode-script v0.5.2
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]    Compiling cookie v0.14.2
[INFO] [stderr]     Checking bytestring v0.1.5
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]     Checking kurbo v0.6.3
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking roxmltree v0.13.0
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking simplecss v0.2.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking svgfilters v0.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling rustybuzz v0.1.1
[INFO] [stderr]    Compiling tiny-skia v0.1.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking fontdb v0.1.0
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.41/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=31db51559d0a3fdd -C extra-filename=-31db51559d0a3fdd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-108f3aee7922c57f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c06e2dfd553b1a2c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b13daac5d45350a3.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" "7cb485ed9a122490b4d2dbd372041e91fc8474a0e62a949d54718c986a90a7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb485ed9a122490b4d2dbd372041e91fc8474a0e62a949d54718c986a90a7fd", kill_on_drop: false }`
[INFO] [stdout] 7cb485ed9a122490b4d2dbd372041e91fc8474a0e62a949d54718c986a90a7fd