[INFO] fetching crate mail 0.7.0...
[INFO] checking mail-0.7.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate mail 0.7.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mail 0.7.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mail 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mail 0.7.0
[INFO] tweaked toml for crates.io crate mail 0.7.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mail 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 8f9a79346d39cdad8a479e14707efb4a73b3ebf96328bd578052a74e8fcb3ad0
[INFO] running `Command { std: "docker" "start" "-a" "8f9a79346d39cdad8a479e14707efb4a73b3ebf96328bd578052a74e8fcb3ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f9a79346d39cdad8a479e14707efb4a73b3ebf96328bd578052a74e8fcb3ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f9a79346d39cdad8a479e14707efb4a73b3ebf96328bd578052a74e8fcb3ad0", kill_on_drop: false }`
[INFO] [stdout] 8f9a79346d39cdad8a479e14707efb4a73b3ebf96328bd578052a74e8fcb3ad0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 44821e748d23f32647392659fe75d55510cb3f55e45310bd9de0d3fb937471aa
[INFO] running `Command { std: "docker" "start" "-a" "44821e748d23f32647392659fe75d55510cb3f55e45310bd9de0d3fb937471aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking quoted-string v0.6.1
[INFO] [stderr]     Checking quoted_printable v0.4.2
[INFO] [stderr]    Compiling checked_command v0.2.2
[INFO] [stderr]     Checking vec-drain-where v1.0.1
[INFO] [stderr]     Checking soft-ascii-string v1.1.0
[INFO] [stderr]     Checking maybe-owned v0.3.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking total-order-multi-map v0.4.6
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking lut v0.1.0-unstable
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking media-type-impl-utils v0.3.0-unstable
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking media-type v0.4.0-unstable
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rpassword v2.1.0
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking chrono v0.4.11
[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-uds v0.2.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking vec1 v1.5.0
[INFO] [stderr]     Checking toml v0.4.10
[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-template v0.6.1
[INFO] [stderr]     Checking mail v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "44821e748d23f32647392659fe75d55510cb3f55e45310bd9de0d3fb937471aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44821e748d23f32647392659fe75d55510cb3f55e45310bd9de0d3fb937471aa", kill_on_drop: false }`
[INFO] [stdout] 44821e748d23f32647392659fe75d55510cb3f55e45310bd9de0d3fb937471aa