[INFO] fetching crate rrss2imap 0.3.0...
[INFO] checking rrss2imap-0.3.0 against beta for pr-78714
[INFO] extracting crate rrss2imap 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rrss2imap 0.3.0 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 rrss2imap 0.3.0
[INFO] finished tweaking crates.io crate rrss2imap 0.3.0
[INFO] tweaked toml for crates.io crate rrss2imap 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rrss2imap 0.3.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] a8edd5a38cc89c0ac3c831c154878434c47747871266b39e1038c44ed0cf1cf7
[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" "a8edd5a38cc89c0ac3c831c154878434c47747871266b39e1038c44ed0cf1cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8edd5a38cc89c0ac3c831c154878434c47747871266b39e1038c44ed0cf1cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8edd5a38cc89c0ac3c831c154878434c47747871266b39e1038c44ed0cf1cf7", kill_on_drop: false }`
[INFO] [stdout] a8edd5a38cc89c0ac3c831c154878434c47747871266b39e1038c44ed0cf1cf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 08813657f432217541c427496098869e442fd9eb7dd2c55a4b4222567bb543d1
[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" "08813657f432217541c427496098869e442fd9eb7dd2c55a4b4222567bb543d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]     Checking indexmap v1.1.0
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking bytes v0.5.2
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]     Checking xhtmlchardet v2.1.0
[INFO] [stderr]     Checking custom_error v1.8.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking getrandom v0.1.11
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking polling v0.1.5
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking imap-proto v0.7.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking tree_magic v0.2.1
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking backtrace v0.3.35
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking hyperx v0.13.2
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]    Compiling parse-zoneinfo v0.2.0
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking globwalk v0.8.0
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling chrono-tz v0.5.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr] error: could not compile `cssparser`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.25.9/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=75ccb7119f00f2d8 -C extra-filename=-75ccb7119f00f2d8 --out-dir /opt/rustwide/target/debug/build/cssparser-75ccb7119f00f2d8 -L dependency=/opt/rustwide/target/debug/deps --extern autocfg=/opt/rustwide/target/debug/deps/libautocfg-59d01e7032b853a2.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ccd4f6e9b33c9373.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-d793dd75e79f3af0.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-6c23af15cb5faea3.rlib --cap-lints allow --cap-lints=forbid` (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" "08813657f432217541c427496098869e442fd9eb7dd2c55a4b4222567bb543d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08813657f432217541c427496098869e442fd9eb7dd2c55a4b4222567bb543d1", kill_on_drop: false }`
[INFO] [stdout] 08813657f432217541c427496098869e442fd9eb7dd2c55a4b4222567bb543d1