[INFO] fetching crate mail-smtp 0.3.0...
[INFO] checking mail-smtp-0.3.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate mail-smtp 0.3.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate mail-smtp 0.3.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mail-smtp 0.3.0
[INFO] finished tweaking crates.io crate mail-smtp 0.3.0
[INFO] tweaked toml for crates.io crate mail-smtp 0.3.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", 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] cbb57647564d74291b00baa0ce8593d3caab22b1213a12f9454c78e261d94a98
[INFO] running `Command { std: "docker" "start" "-a" "cbb57647564d74291b00baa0ce8593d3caab22b1213a12f9454c78e261d94a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb57647564d74291b00baa0ce8593d3caab22b1213a12f9454c78e261d94a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb57647564d74291b00baa0ce8593d3caab22b1213a12f9454c78e261d94a98", kill_on_drop: false }`
[INFO] [stdout] cbb57647564d74291b00baa0ce8593d3caab22b1213a12f9454c78e261d94a98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a5fd34ef13e130a8d21fa6f453df96e76b4274f9c7cd3490424fb06e4095bb6
[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" "6a5fd34ef13e130a8d21fa6f453df96e76b4274f9c7cd3490424fb06e4095bb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking quoted-string v0.6.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking vec1 v1.8.0
[INFO] [stderr]     Checking soft-ascii-string v1.1.0
[INFO] [stderr]     Checking quoted_printable v0.4.3
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling checked_command v0.2.4
[INFO] [stderr]     Checking vec-drain-where v1.0.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking lut v0.1.0-unstable
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking total-order-multi-map v0.4.6
[INFO] [stderr]     Checking media-type-impl-utils v0.3.0-unstable
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking media-type v0.4.0-unstable
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking new-tokio-smtp v0.9.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking mail-internals v0.2.3
[INFO] [stderr]     Checking mail-headers v0.6.6
[INFO] [stderr]     Checking mail-core v0.6.2
[INFO] [stderr]     Checking mail-smtp v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "6a5fd34ef13e130a8d21fa6f453df96e76b4274f9c7cd3490424fb06e4095bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5fd34ef13e130a8d21fa6f453df96e76b4274f9c7cd3490424fb06e4095bb6", kill_on_drop: false }`
[INFO] [stdout] 6a5fd34ef13e130a8d21fa6f453df96e76b4274f9c7cd3490424fb06e4095bb6