[INFO] cloning repository https://github.com/rust-lang-nursery/crater [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/crater" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 95030831135c4bd21c2b957fc69a4950b8bf4323 [INFO] testing rust-lang-nursery/crater against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rust-lang-nursery/crater on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-3/source/rust-toolchain [INFO] started tweaking git repo https://github.com/rust-lang-nursery/crater [INFO] finished tweaking git repo https://github.com/rust-lang-nursery/crater [INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/crater written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/rust-lang-nursery/crater already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unic-char-property v0.7.0 [INFO] [stderr] Downloaded unic-char-range v0.7.0 [INFO] [stderr] Downloaded tera v0.11.20 [INFO] [stderr] Downloaded ordermap v0.3.5 [INFO] [stderr] Downloaded git2 v0.13.12 [INFO] [stderr] Downloaded fixedbitset v0.1.9 [INFO] [stderr] Downloaded macro-utils v0.1.3 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded semver-parser v0.10.0 [INFO] [stderr] Downloaded cargo_metadata v0.12.1 [INFO] [stderr] Downloaded protobuf v2.18.1 [INFO] [stderr] Downloaded crates-index v0.16.2 [INFO] [stderr] Downloaded smartstring v0.2.5 [INFO] [stderr] Downloaded rusoto_core v0.35.0 [INFO] [stderr] Downloaded mio v0.7.7 [INFO] [stderr] Downloaded prometheus v0.7.0 [INFO] [stderr] Downloaded assert_cmd v1.0.2 [INFO] [stderr] Downloaded rusoto_credential v0.14.0 [INFO] [stderr] Downloaded systemstat v0.1.6 [INFO] [stderr] Downloaded attohttpc v0.16.1 [INFO] [stderr] Downloaded tokio v1.1.0 [INFO] [stderr] Downloaded chrono-humanize v0.1.1 [INFO] [stderr] Downloaded predicates v1.0.5 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded unic-common v0.7.0 [INFO] [stderr] Downloaded rustwide v0.14.0 [INFO] [stderr] Downloaded wildmatch v1.0.13 [INFO] [stderr] Downloaded funty v1.0.1 [INFO] [stderr] Downloaded csv v1.1.4 [INFO] [stderr] Downloaded libssh2-sys v0.2.20 [INFO] [stderr] Downloaded unic-ucd-version v0.7.0 [INFO] [stderr] Downloaded unic-ucd-segment v0.7.0 [INFO] [stderr] Downloaded unic-segment v0.7.0 [INFO] [stderr] Downloaded libgit2-sys v0.12.14+1.1.0 [INFO] [stderr] Downloaded petgraph v0.4.13 [INFO] [stderr] Downloaded serde_regex v0.3.1 [INFO] [stderr] Downloaded tungstenite v0.9.2 [INFO] [stderr] Downloaded r2d2_sqlite v0.7.0 [INFO] [stderr] Downloaded warp v0.1.23 [INFO] [stderr] Downloaded input_buffer v0.2.0 [INFO] [stderr] Downloaded minifier v0.0.20 [INFO] [stderr] Downloaded headers v0.2.3 [INFO] [stderr] Downloaded headers-core v0.1.1 [INFO] [stderr] Downloaded urlencoding v1.1.1 [INFO] [stderr] Downloaded rusoto_s3 v0.35.0 [INFO] [stderr] Downloaded rusqlite v0.15.0 [INFO] [stderr] Downloaded libsqlite3-sys v0.10.0 [INFO] [stderr] Downloaded tokio-stream v0.1.2 [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 72c3bfc811dddc86037bc6674e63c5689e2ac05b3ae9de348a8f8063c1dcb4a7 [INFO] running `Command { std: "docker" "start" "-a" "72c3bfc811dddc86037bc6674e63c5689e2ac05b3ae9de348a8f8063c1dcb4a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "72c3bfc811dddc86037bc6674e63c5689e2ac05b3ae9de348a8f8063c1dcb4a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72c3bfc811dddc86037bc6674e63c5689e2ac05b3ae9de348a8f8063c1dcb4a7", kill_on_drop: false }` [INFO] [stdout] 72c3bfc811dddc86037bc6674e63c5689e2ac05b3ae9de348a8f8063c1dcb4a7 [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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", 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] 21b82c9eb29a8980954922bcd67752301b6d471e6db99b175545876006c33af0 [INFO] running `Command { std: "docker" "start" "-a" "21b82c9eb29a8980954922bcd67752301b6d471e6db99b175545876006c33af0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling syn v1.0.51 [INFO] [stderr] Compiling futures v0.1.30 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Compiling funty v1.0.1 [INFO] [stderr] Compiling protobuf v2.18.1 [INFO] [stderr] Compiling tap v1.0.0 [INFO] [stderr] Compiling rustwide v0.14.0 [INFO] [stderr] Compiling prometheus v0.7.0 [INFO] [stderr] Compiling wildmatch v1.0.13 [INFO] [stderr] Compiling crater v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling bytesize v1.0.1 [INFO] [stderr] Compiling urlencoding v1.1.1 [INFO] [stderr] Compiling macro-utils v0.1.3 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling tokio v1.1.0 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling lock_api v0.4.2 [INFO] [stderr] Compiling nom v6.0.1 [INFO] [stderr] Compiling addr2line v0.14.0 [INFO] [stderr] Compiling block-buffer v0.3.3 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling xml-rs v0.7.0 [INFO] [stderr] Compiling rusoto_core v0.35.0 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling generic-array v0.9.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling paste-impl v0.1.18 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Compiling bitvec v0.19.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling minifier v0.0.20 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling digest v0.7.6 [INFO] [stderr] Compiling crypto-mac v0.5.2 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Compiling sha2 v0.7.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling hmac v0.5.0 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling paste v0.1.18 [INFO] [stderr] Compiling tokio-executor v0.1.10 [INFO] [stderr] Compiling tokio-sync v0.1.8 [INFO] [stderr] Compiling want v0.2.0 [INFO] [stderr] Compiling tokio-timer v0.2.13 [INFO] [stderr] Compiling tokio-current-thread v0.1.7 [INFO] [stderr] Compiling jobserver v0.1.21 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling net2 v0.2.35 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling backtrace v0.3.55 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling parking_lot_core v0.8.0 [INFO] [stderr] Compiling flate2 v1.0.19 [INFO] [stderr] Compiling mio v0.7.7 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling signal-hook-registry v1.2.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling xattr v0.2.2 [INFO] [stderr] Compiling filetime v0.2.13 [INFO] [stderr] Compiling remove_dir_all v0.7.0 [INFO] [stderr] Compiling nix v0.20.0 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling fs2 v0.4.3 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling cookie v0.12.0 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling tokio-threadpool v0.1.18 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling cc v1.0.65 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling clap v2.33.3 [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-1.0.51/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --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=a8a77fa1b9f891e9 -C extra-filename=-a8a77fa1b9f891e9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-17858077ac902bf7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-06e00a111be99d27.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-4f4df54432f3a5d3.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (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" "21b82c9eb29a8980954922bcd67752301b6d471e6db99b175545876006c33af0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21b82c9eb29a8980954922bcd67752301b6d471e6db99b175545876006c33af0", kill_on_drop: false }` [INFO] [stdout] 21b82c9eb29a8980954922bcd67752301b6d471e6db99b175545876006c33af0