[INFO] fetching crate serval 0.1.0...
[INFO] checking serval-0.1.0 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] extracting crate serval 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate serval 0.1.0 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serval 0.1.0
[INFO] finished tweaking crates.io crate serval 0.1.0
[INFO] tweaked toml for crates.io crate serval 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "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" "+4a23c45c7893f1416456144e3883cc48ea91722e" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c76ab5c186f339b6fa5d7f0657889f1f25f55797d8139fca943b8c69a744e9e
[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" "8c76ab5c186f339b6fa5d7f0657889f1f25f55797d8139fca943b8c69a744e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c76ab5c186f339b6fa5d7f0657889f1f25f55797d8139fca943b8c69a744e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c76ab5c186f339b6fa5d7f0657889f1f25f55797d8139fca943b8c69a744e9e", kill_on_drop: false }`
[INFO] [stdout] 8c76ab5c186f339b6fa5d7f0657889f1f25f55797d8139fca943b8c69a744e9e
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "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] f15c5016b815e52d687f1297e404bf2554527c8afe52e90f821342f664354bd8
[INFO] running `Command { std: "docker" "start" "-a" "f15c5016b815e52d687f1297e404bf2554527c8afe52e90f821342f664354bd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking loggerv v0.7.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking logger v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking serval v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "f15c5016b815e52d687f1297e404bf2554527c8afe52e90f821342f664354bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f15c5016b815e52d687f1297e404bf2554527c8afe52e90f821342f664354bd8", kill_on_drop: false }`
[INFO] [stdout] f15c5016b815e52d687f1297e404bf2554527c8afe52e90f821342f664354bd8