[INFO] fetching crate helvetia 0.1.1...
[INFO] checking helvetia-0.1.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate helvetia 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate helvetia 0.1.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate helvetia 0.1.1
[INFO] finished tweaking crates.io crate helvetia 0.1.1
[INFO] tweaked toml for crates.io crate helvetia 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate helvetia 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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-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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9128274a380ecee9f976842ab2a98ad3a48b98f3b53666ea85bc5fe16a1151e3
[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" "9128274a380ecee9f976842ab2a98ad3a48b98f3b53666ea85bc5fe16a1151e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9128274a380ecee9f976842ab2a98ad3a48b98f3b53666ea85bc5fe16a1151e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9128274a380ecee9f976842ab2a98ad3a48b98f3b53666ea85bc5fe16a1151e3", kill_on_drop: false }`
[INFO] [stdout] 9128274a380ecee9f976842ab2a98ad3a48b98f3b53666ea85bc5fe16a1151e3
[INFO] running `Command { std: "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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--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] 18d1188b0c57a1bb4dc8eb24528b26412d8e7e2f56cf4c9268eeb600fea978ad
[INFO] running `Command { std: "docker" "start" "-a" "18d1188b0c57a1bb4dc8eb24528b26412d8e7e2f56cf4c9268eeb600fea978ad", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.32
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.113
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde v1.0.113
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking base64 v0.12.2
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling protobuf v2.15.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling tindercrypt v0.2.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling helvetia v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking encoding_rs v0.8.23
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking terminal_size v0.1.12
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking headers v0.3.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking console v0.10.3
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking dialoguer v0.5.1
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]     Checking globwalk v0.7.3
[INFO] [stderr]     Checking assert_fs v1.0.0
[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling librocksdb-sys v6.7.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking tokio-tungstenite v0.10.1
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.113/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=7b6b6dc27f79b9b2 -C extra-filename=-7b6b6dc27f79b9b2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-66cd764b589abc70.so --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg core_try_from --cfg num_nonzero_signed --cfg std_atomic64 --cfg std_atomic` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "18d1188b0c57a1bb4dc8eb24528b26412d8e7e2f56cf4c9268eeb600fea978ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d1188b0c57a1bb4dc8eb24528b26412d8e7e2f56cf4c9268eeb600fea978ad", kill_on_drop: false }`
[INFO] [stdout] 18d1188b0c57a1bb4dc8eb24528b26412d8e7e2f56cf4c9268eeb600fea978ad