[INFO] cloning repository https://github.com/l4l/rum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/l4l/rum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl4l%2Frum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl4l%2Frum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0537fe5da30db42378465e7fa07c805128d46d9b
[INFO] checking l4l/rum against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl4l%2Frum" "/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/l4l/rum on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/l4l/rum
[INFO] finished tweaking git repo https://github.com/l4l/rum
[INFO] tweaked toml for git repo https://github.com/l4l/rum written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/l4l/rum already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81fffbf032b3ed3153249b0b3bd6575123ee6753ad0c5ef03ba0c3706c9a7e5d
[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" "81fffbf032b3ed3153249b0b3bd6575123ee6753ad0c5ef03ba0c3706c9a7e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81fffbf032b3ed3153249b0b3bd6575123ee6753ad0c5ef03ba0c3706c9a7e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fffbf032b3ed3153249b0b3bd6575123ee6753ad0c5ef03ba0c3706c9a7e5d", kill_on_drop: false }`
[INFO] [stdout] 81fffbf032b3ed3153249b0b3bd6575123ee6753ad0c5ef03ba0c3706c9a7e5d
[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=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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b750170ddec5e676fe5521f6d83eeb5d3f24ccd95038eed0546c7aea68462ee
[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" "4b750170ddec5e676fe5521f6d83eeb5d3f24ccd95038eed0546c7aea68462ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ego-tree v0.6.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking xml-rs v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking encoding_rs v0.8.22
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking indexmap v1.3.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tui v0.8.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking flexi_logger v0.14.8
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking mpv v0.2.3
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[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 async-stream-impl v0.2.1
[INFO] [stderr]    Compiling derive_more v0.99.3
[INFO] [stderr]    Compiling snafu-derive v0.6.2
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.104/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=07690bd6c80fc90c -C extra-filename=-07690bd6c80fc90c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-92b40f23d32424f8.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-7ef3b8104a05334e.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-93b0c80c1fdb3947.rlib --extern proc_macro --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" "4b750170ddec5e676fe5521f6d83eeb5d3f24ccd95038eed0546c7aea68462ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b750170ddec5e676fe5521f6d83eeb5d3f24ccd95038eed0546c7aea68462ee", kill_on_drop: false }`
[INFO] [stdout] 4b750170ddec5e676fe5521f6d83eeb5d3f24ccd95038eed0546c7aea68462ee