[INFO] crate sailor 0.1.0 is already in cache
[INFO] checking sailor-0.1.0 against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766
[INFO] extracting crate sailor 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sailor 0.1.0 on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sailor 0.1.0
[INFO] finished tweaking crates.io crate sailor 0.1.0
[INFO] tweaked toml for crates.io crate sailor 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate sailor 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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" "/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d0f8ee66ffb15d88391e8ad959d0977cc382152fc44d8f7524cd3e27bfcf097d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d0f8ee66ffb15d88391e8ad959d0977cc382152fc44d8f7524cd3e27bfcf097d"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]     Checking byte-slice-cast v0.3.2
[INFO] [stderr]     Checking bitvec v0.14.0
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]     Checking slotmap v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]     Checking rlp v0.4.2
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]     Checking hibitset v0.6.2
[INFO] [stderr]     Checking matrixmultiply v0.2.2
[INFO] [stderr]     Checking miniz_oxide v0.3.2
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking impl-rlp v0.2.0
[INFO] [stderr]     Checking raw-window-handle v0.1.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling stackvector v1.0.7
[INFO] [stderr]    Compiling lexical-core v0.4.3
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking elastic-array v0.10.2
[INFO] [stderr]     Checking uint v0.8.1
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking inotify v0.7.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wayland-scanner v0.23.5
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking regex v1.3.0
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling imgui-sys v0.2.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking fixed-hash v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking chrono v0.4.8
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking alga v0.9.1
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking mime_guess v2.0.1
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling wayland-client v0.23.5
[INFO] [stderr]    Compiling wayland-protocols v0.23.5
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.7
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking size_format v1.0.2
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking backtrace v0.3.35
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking wayland-sys v0.23.5
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking wayland-commons v0.23.5
[INFO] [stderr]     Checking publicsuffix v1.5.3
[INFO] [stderr]     Checking imgui v0.2.0
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /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"' -C metadata=ef83d758d96d83a9 -C extra-filename=-ef83d758d96d83a9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ec902278c6211ffe.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1f7ad41ecbd199b5.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-8837a0aeccce1a2d.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" "d0f8ee66ffb15d88391e8ad959d0977cc382152fc44d8f7524cd3e27bfcf097d"`
[INFO] running `"docker" "rm" "-f" "d0f8ee66ffb15d88391e8ad959d0977cc382152fc44d8f7524cd3e27bfcf097d"`
[INFO] [stdout] d0f8ee66ffb15d88391e8ad959d0977cc382152fc44d8f7524cd3e27bfcf097d