[INFO] fetching crate hbs-pow 0.2.0...
[INFO] checking hbs-pow-0.2.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate hbs-pow 0.2.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate hbs-pow 0.2.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hbs-pow 0.2.0
[INFO] finished tweaking crates.io crate hbs-pow 0.2.0
[INFO] tweaked toml for crates.io crate hbs-pow 0.2.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcf5e45baf8cee8d47dc3839079541f173c672e20d71fbcaebfd483c54f13479
[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" "dcf5e45baf8cee8d47dc3839079541f173c672e20d71fbcaebfd483c54f13479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcf5e45baf8cee8d47dc3839079541f173c672e20d71fbcaebfd483c54f13479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf5e45baf8cee8d47dc3839079541f173c672e20d71fbcaebfd483c54f13479", kill_on_drop: false }`
[INFO] [stdout] dcf5e45baf8cee8d47dc3839079541f173c672e20d71fbcaebfd483c54f13479
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 340ede75655e0fbeb43777b4d28cefc5544c5f709bac70bd10a8285a6ed77097
[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" "340ede75655e0fbeb43777b4d28cefc5544c5f709bac70bd10a8285a6ed77097", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling hbs-builder v0.2.1
[INFO] [stderr]     Checking hbs-common-sys v0.2.1
[INFO] [stderr]    Compiling hbs-pow-sys v0.2.1
[INFO] [stderr]     Checking hbs-pow v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> lib.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> lib.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `heartbeat_pow_context` does not permit being left uninitialized
[INFO] [stdout]   --> lib.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this code causes undefined behavior when executed
[INFO] [stdout]    |                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] note: function pointers must be non-null (in this struct field)
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/hbs-pow-sys-0.2.1/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub hwc_callback: heartbeat_pow_window_complete,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `heartbeat_pow_context` does not permit being left uninitialized
[INFO] [stdout]   --> lib.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this code causes undefined behavior when executed
[INFO] [stdout]    |                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] note: function pointers must be non-null (in this struct field)
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/hbs-pow-sys-0.2.1/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub hwc_callback: heartbeat_pow_window_complete,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `received_cb` should have an upper case name
[INFO] [stdout]    --> lib.rs:212:20
[INFO] [stdout]     |
[INFO] [stdout] 212 |         static mut received_cb: bool = false;
[INFO] [stdout]     |                    ^^^^^^^^^^^ help: convert the identifier to upper case: `RECEIVED_CB`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.74s
[INFO] running `Command { std: "docker" "inspect" "340ede75655e0fbeb43777b4d28cefc5544c5f709bac70bd10a8285a6ed77097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "340ede75655e0fbeb43777b4d28cefc5544c5f709bac70bd10a8285a6ed77097", kill_on_drop: false }`
[INFO] [stdout] 340ede75655e0fbeb43777b4d28cefc5544c5f709bac70bd10a8285a6ed77097