[INFO] fetching crate cron_clock 0.6.3...
[INFO] checking cron_clock-0.6.3 against master#d902752866cbbdb331e3cf28ff6bba86ab0f6c62 for pr-77271
[INFO] extracting crate cron_clock 0.6.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cron_clock 0.6.3 on toolchain d902752866cbbdb331e3cf28ff6bba86ab0f6c62
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cron_clock 0.6.3
[INFO] finished tweaking crates.io crate cron_clock 0.6.3
[INFO] tweaked toml for crates.io crate cron_clock 0.6.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40f57d276ae4d47ac475c6e63d8d40ed2d16dd79244e487a9a4616b10335eb9e
[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" "40f57d276ae4d47ac475c6e63d8d40ed2d16dd79244e487a9a4616b10335eb9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40f57d276ae4d47ac475c6e63d8d40ed2d16dd79244e487a9a4616b10335eb9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f57d276ae4d47ac475c6e63d8d40ed2d16dd79244e487a9a4616b10335eb9e", kill_on_drop: false }`
[INFO] [stdout] 40f57d276ae4d47ac475c6e63d8d40ed2d16dd79244e487a9a4616b10335eb9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd9266bde82ebb5a31777147a5562c1d157a8a5a803c9eaa6f6e23a2b5d89da3
[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" "fd9266bde82ebb5a31777147a5562c1d157a8a5a803c9eaa6f6e23a2b5d89da3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking chrono v0.4.18
[INFO] [stderr]     Checking cron_clock v0.6.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ScheduleIteratorOwned`, `ScheduleIterator`
[INFO] [stdout]  --> tests/lib.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 |         schedule::{Schedule, ScheduleIterator, ScheduleIteratorOwned},
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.60s
[INFO] running `Command { std: "docker" "inspect" "fd9266bde82ebb5a31777147a5562c1d157a8a5a803c9eaa6f6e23a2b5d89da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd9266bde82ebb5a31777147a5562c1d157a8a5a803c9eaa6f6e23a2b5d89da3", kill_on_drop: false }`
[INFO] [stdout] fd9266bde82ebb5a31777147a5562c1d157a8a5a803c9eaa6f6e23a2b5d89da3