[INFO] crate snowchains 0.3.0 is already in cache
[INFO] checking snowchains-0.3.0 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] extracting crate snowchains 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate snowchains 0.3.0 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate snowchains 0.3.0
[INFO] finished tweaking crates.io crate snowchains 0.3.0
[INFO] tweaked toml for crates.io crate snowchains 0.3.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate snowchains 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2b6c9ef7e4ef38e3476c09398caba247b29f98be9f3c365baae670c0c5bc118e
[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" "2b6c9ef7e4ef38e3476c09398caba247b29f98be9f3c365baae670c0c5bc118e"`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking futures01 v0.1.29
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking rpassword v4.0.5
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking robots_txt v0.6.0
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking retry v1.0.0
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking zip v0.5.4
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio-process v0.2.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]     Checking tokio-rustls v0.10.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling html5ever v0.24.1
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]    Compiling ref-cast-impl v1.0.0
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling snowchains_proc_macros v0.2.0
[INFO] [stderr]     Checking ref-cast v1.0.0
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr] error: could not compile `html5ever`.
[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/html5ever-0.24.1/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C debuginfo=2 -C metadata=9e8a6cbc6776b355 -C extra-filename=-9e8a6cbc6776b355 --out-dir /opt/rustwide/target/debug/build/html5ever-9e8a6cbc6776b355 -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2942d1b526d3be3a.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-14a8f4e4e747ee03.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-e16be27bd7f1a03a.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: 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 debuginfo=2 -C metadata=991923964183e748 -C extra-filename=-991923964183e748 --out-dir /opt/rustwide/target/debug/build/cssparser-991923964183e748 -L dependency=/opt/rustwide/target/debug/deps --extern autocfg=/opt/rustwide/target/debug/deps/libautocfg-bdf895d9f3a1082d.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2942d1b526d3be3a.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-14a8f4e4e747ee03.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-e16be27bd7f1a03a.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 `"docker" "inspect" "2b6c9ef7e4ef38e3476c09398caba247b29f98be9f3c365baae670c0c5bc118e"`
[INFO] running `"docker" "rm" "-f" "2b6c9ef7e4ef38e3476c09398caba247b29f98be9f3c365baae670c0c5bc118e"`
[INFO] [stdout] 2b6c9ef7e4ef38e3476c09398caba247b29f98be9f3c365baae670c0c5bc118e