[INFO] fetching crate memcached-rs 0.4.2...
[INFO] checking memcached-rs-0.4.2 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate memcached-rs 0.4.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate memcached-rs 0.4.2 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memcached-rs 0.4.2
[INFO] finished tweaking crates.io crate memcached-rs 0.4.2
[INFO] tweaked toml for crates.io crate memcached-rs 0.4.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate memcached-rs 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded conhash v0.4.0
[INFO] [stderr]   Downloaded lazy_static v1.2.0
[INFO] [stderr]   Downloaded memchr v2.1.1
[INFO] [stderr]   Downloaded cfg-if v0.1.6
[INFO] [stderr]   Downloaded ucd-util v0.1.2
[INFO] [stderr]   Downloaded winapi-util v0.1.1
[INFO] [stderr]   Downloaded unix_socket v0.5.0
[INFO] [stderr]   Downloaded byteorder v1.2.7
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded regex v1.0.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76359c2fb25071bcf0de37b24970835dab16f2c43e2ea7e57df7e05d62a6c802
[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" "76359c2fb25071bcf0de37b24970835dab16f2c43e2ea7e57df7e05d62a6c802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76359c2fb25071bcf0de37b24970835dab16f2c43e2ea7e57df7e05d62a6c802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76359c2fb25071bcf0de37b24970835dab16f2c43e2ea7e57df7e05d62a6c802", kill_on_drop: false }`
[INFO] [stdout] 76359c2fb25071bcf0de37b24970835dab16f2c43e2ea7e57df7e05d62a6c802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6eb2490ca6c597624522b88f94aea325ccb943d0be41046129618c024a8bfd2d
[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" "6eb2490ca6c597624522b88f94aea325ccb943d0be41046129618c024a8bfd2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]     Checking ucd-util v0.1.2
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking conhash v0.4.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking memcached-rs v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.43s
[INFO] running `Command { std: "docker" "inspect" "6eb2490ca6c597624522b88f94aea325ccb943d0be41046129618c024a8bfd2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eb2490ca6c597624522b88f94aea325ccb943d0be41046129618c024a8bfd2d", kill_on_drop: false }`
[INFO] [stdout] 6eb2490ca6c597624522b88f94aea325ccb943d0be41046129618c024a8bfd2d