[INFO] fetching crate bookbinder 0.1.0...
[INFO] checking bookbinder-0.1.0 against beta for pr-78714
[INFO] extracting crate bookbinder 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate bookbinder 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bookbinder 0.1.0
[INFO] finished tweaking crates.io crate bookbinder 0.1.0
[INFO] tweaked toml for crates.io crate bookbinder 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate bookbinder 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed103b9390e30bca512660035824a44d56436f90365803bc2a083a757d652837
[INFO] running `Command { std: "docker" "start" "-a" "ed103b9390e30bca512660035824a44d56436f90365803bc2a083a757d652837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed103b9390e30bca512660035824a44d56436f90365803bc2a083a757d652837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed103b9390e30bca512660035824a44d56436f90365803bc2a083a757d652837", kill_on_drop: false }`
[INFO] [stdout] ed103b9390e30bca512660035824a44d56436f90365803bc2a083a757d652837
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5619b836d504282f124e55029f9ac0861092e438243808982bb89a89937b21d4
[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" "5619b836d504282f124e55029f9ac0861092e438243808982bb89a89937b21d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking unicode-script v0.5.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking ttf-parser v0.8.2
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking weezl v0.1.1
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking temp_file_name v0.1.0
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling unicode-general-category v0.2.0
[INFO] [stderr]     Checking unicode-ccc v0.1.0
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]     Checking pom v3.2.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking kurbo v0.6.3
[INFO] [stderr]     Checking roxmltree v0.13.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking crossbeam-utils v0.8.0
[INFO] [stderr]     Checking simplecss v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking svgfilters v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking fontdb v0.1.0
[INFO] [stderr]     Checking fontdb v0.2.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling rustybuzz v0.1.1
[INFO] [stderr]    Compiling tiny-skia v0.1.0
[INFO] [stderr]    Compiling rustybuzz v0.2.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking extended_pulldown v0.1.0
[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-1.0.46/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=40e4b0f056b7d492 -C extra-filename=-40e4b0f056b7d492 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-db256853d8ab4a1e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ade5fbeeb7bccbe4.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b888af50774a486c.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5619b836d504282f124e55029f9ac0861092e438243808982bb89a89937b21d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5619b836d504282f124e55029f9ac0861092e438243808982bb89a89937b21d4", kill_on_drop: false }`
[INFO] [stdout] 5619b836d504282f124e55029f9ac0861092e438243808982bb89a89937b21d4