[INFO] updating cached repository https://github.com/vorleser/vorleser-server
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 078411c0e43aff10a241f3a13ecf5160d2942ce6
[INFO] checking vorleser/vorleser-server against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvorleser%2Fvorleser-server" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vorleser/vorleser-server on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vorleser/vorleser-server
[INFO] finished tweaking git repo https://github.com/vorleser/vorleser-server
[INFO] tweaked toml for git repo https://github.com/vorleser/vorleser-server written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/vorleser/vorleser-server already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1037310ff852724e2b8e8e0965dd52a6dd5b6f45a3dd485c7dabc3447a4b43c7
[INFO] running `"docker" "start" "-a" "1037310ff852724e2b8e8e0965dd52a6dd5b6f45a3dd485c7dabc3447a4b43c7"`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling if_chain v0.1.3
[INFO] [stderr]     Checking mp3-metadata v0.3.2
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling rocket_codegen v0.4.2
[INFO] [stderr]    Compiling rocket v0.4.2
[INFO] [stderr]     Checking humanesort v0.1.0-alpha
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling sentry v0.12.1
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]     Checking sized-chunks v0.1.3
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking uname v0.1.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling which v3.1.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking argon2rs v0.2.5
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking inotify v0.7.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking id3 v0.2.5
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -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-mut"' -C metadata=e8ee76979b707c65 -C extra-filename=-e8ee76979b707c65 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-aed5be7b95b829d8.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6cfe604d8cf61800.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-ff4fcdd9189ddc82.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1037310ff852724e2b8e8e0965dd52a6dd5b6f45a3dd485c7dabc3447a4b43c7"`
[INFO] running `"docker" "rm" "-f" "1037310ff852724e2b8e8e0965dd52a6dd5b6f45a3dd485c7dabc3447a4b43c7"`
[INFO] [stdout] 1037310ff852724e2b8e8e0965dd52a6dd5b6f45a3dd485c7dabc3447a4b43c7