[INFO] fetching crate check-if-email-exists 0.8.14...
[INFO] checking check-if-email-exists-0.8.14 against beta for pr-78714
[INFO] extracting crate check-if-email-exists 0.8.14 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate check-if-email-exists 0.8.14 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate check-if-email-exists 0.8.14
[INFO] finished tweaking crates.io crate check-if-email-exists 0.8.14
[INFO] tweaked toml for crates.io crate check-if-email-exists 0.8.14 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4022298a6b73810bec2d8e7980432a5390ae8180ccb31048b46441897f59d655
[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" "4022298a6b73810bec2d8e7980432a5390ae8180ccb31048b46441897f59d655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4022298a6b73810bec2d8e7980432a5390ae8180ccb31048b46441897f59d655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4022298a6b73810bec2d8e7980432a5390ae8180ccb31048b46441897f59d655", kill_on_drop: false }`
[INFO] [stdout] 4022298a6b73810bec2d8e7980432a5390ae8180ccb31048b46441897f59d655
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69223f4a41274d4a6c89467ee9f75d13f340534f42ac551b40b1e8ff03de02fc
[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" "69223f4a41274d4a6c89467ee9f75d13f340534f42ac551b40b1e8ff03de02fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]     Checking native-tls v0.2.6
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking mailchecker v3.3.17
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking tokio-socks v0.2.2
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking fast-socks5 v0.3.3
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking async-std-resolver v0.19.5
[INFO] [stderr]     Checking async-smtp v0.3.4
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking check-if-email-exists v0.8.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.41s
[INFO] running `Command { std: "docker" "inspect" "69223f4a41274d4a6c89467ee9f75d13f340534f42ac551b40b1e8ff03de02fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69223f4a41274d4a6c89467ee9f75d13f340534f42ac551b40b1e8ff03de02fc", kill_on_drop: false }`
[INFO] [stdout] 69223f4a41274d4a6c89467ee9f75d13f340534f42ac551b40b1e8ff03de02fc