[INFO] updating cached repository https://github.com/yanganto/s3fs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 29f34ad1ad6c812ca15c21ab3efe67c28a6a3734
[INFO] testing yanganto/s3fs against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyanganto%2Fs3fs" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yanganto/s3fs on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yanganto/s3fs
[INFO] finished tweaking git repo https://github.com/yanganto/s3fs
[INFO] tweaked toml for git repo https://github.com/yanganto/s3fs written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/yanganto/s3fs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 77753cd2149b6a49f161a79bee22fdcd0a7debed400b7ea747044fb19c31381a
[INFO] running `"docker" "start" "-a" "77753cd2149b6a49f161a79bee22fdcd0a7debed400b7ea747044fb19c31381a"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling try-lock v0.1.0
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling tokio-sync v0.1.1
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling generic-array v0.8.3
[INFO] [stderr]    Compiling libflate v0.1.19
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling hmac-sha1 v0.1.3
[INFO] [stderr]    Compiling digest v0.6.2
[INFO] [stderr]    Compiling block-buffer v0.2.0
[INFO] [stderr]    Compiling crypto-mac v0.4.0
[INFO] [stderr]    Compiling smallvec v0.6.8
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling hmac v0.4.2
[INFO] [stderr]    Compiling sha2 v0.6.0
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling users v0.8.1
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling tokio-io v0.1.11
[INFO] [stderr]    Compiling http v0.1.15
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[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-0.15.26/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="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=a293327ae5cbd18e -C extra-filename=-a293327ae5cbd18e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8f43a668926682bf.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c8dddbff5d36941d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-db534cf3c78b3692.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "77753cd2149b6a49f161a79bee22fdcd0a7debed400b7ea747044fb19c31381a"`
[INFO] running `"docker" "rm" "-f" "77753cd2149b6a49f161a79bee22fdcd0a7debed400b7ea747044fb19c31381a"`
[INFO] [stdout] 77753cd2149b6a49f161a79bee22fdcd0a7debed400b7ea747044fb19c31381a