[INFO] cloning repository https://github.com/doctorn/cluster
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/doctorn/cluster" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoctorn%2Fcluster", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoctorn%2Fcluster'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac3985530354664c7143fe2404a29f8d04f1dcca
[INFO] checking doctorn/cluster against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoctorn%2Fcluster" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/doctorn/cluster on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/doctorn/cluster
[INFO] finished tweaking git repo https://github.com/doctorn/cluster
[INFO] tweaked toml for git repo https://github.com/doctorn/cluster written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09bc88caafe649e88c4e0ffa72cd87bb01dfc804c7217fd7cb67b11a6d262df0
[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" "09bc88caafe649e88c4e0ffa72cd87bb01dfc804c7217fd7cb67b11a6d262df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09bc88caafe649e88c4e0ffa72cd87bb01dfc804c7217fd7cb67b11a6d262df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09bc88caafe649e88c4e0ffa72cd87bb01dfc804c7217fd7cb67b11a6d262df0", kill_on_drop: false }`
[INFO] [stdout] 09bc88caafe649e88c4e0ffa72cd87bb01dfc804c7217fd7cb67b11a6d262df0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79ae9ee1e37815e4ec082bd9d9d808cbb5327e5cf8d6104e0cf59249495bfdbb
[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" "79ae9ee1e37815e4ec082bd9d9d808cbb5327e5cf8d6104e0cf59249495bfdbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling zeroize v1.1.1
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling state v0.4.2
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking humansize v1.1.0
[INFO] [stderr]     Checking groupable v0.2.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking unic-ucd-version v0.7.0
[INFO] [stderr]     Checking unic-char-property v0.7.0
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.5
[INFO] [stderr]    Compiling rocket v0.4.5
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]    Compiling libgit2-sys v0.8.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking unic-ucd-segment v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking miniz_oxide v0.4.3
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking unic-segment v0.7.0
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking aead v0.2.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking hkdf v0.8.0
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking cookie v0.11.3
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]    Compiling devise_codegen v0.2.0
[INFO] [stderr]    Compiling devise v0.2.0
[INFO] [stderr]    Compiling pear v0.1.4
[INFO] [stderr]    Compiling rocket_http v0.4.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking nickel v0.11.0
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking rocket_contrib v0.4.5
[INFO] [stderr]     Checking git2 v0.9.2
[INFO] [stderr]     Checking cluster v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 34s
[INFO] running `Command { std: "docker" "inspect" "79ae9ee1e37815e4ec082bd9d9d808cbb5327e5cf8d6104e0cf59249495bfdbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79ae9ee1e37815e4ec082bd9d9d808cbb5327e5cf8d6104e0cf59249495bfdbb", kill_on_drop: false }`
[INFO] [stdout] 79ae9ee1e37815e4ec082bd9d9d808cbb5327e5cf8d6104e0cf59249495bfdbb