[INFO] fetching crate hbs-pow 0.2.0...
[INFO] checking hbs-pow-0.2.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate hbs-pow 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hbs-pow 0.2.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hbs-pow-sys v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f6f192949548a375ef4b53e0c6fb5dc2c9f34467e597ab9ee7e24a5a4375199
[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" "4f6f192949548a375ef4b53e0c6fb5dc2c9f34467e597ab9ee7e24a5a4375199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f6f192949548a375ef4b53e0c6fb5dc2c9f34467e597ab9ee7e24a5a4375199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f6f192949548a375ef4b53e0c6fb5dc2c9f34467e597ab9ee7e24a5a4375199", kill_on_drop: false }`
[INFO] [stdout] 4f6f192949548a375ef4b53e0c6fb5dc2c9f34467e597ab9ee7e24a5a4375199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb4a4f220c840ffff45a7047e624149674d1d850a7ca9541e2fdf9627eddf93
[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" "adb4a4f220c840ffff45a7047e624149674d1d850a7ca9541e2fdf9627eddf93", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling cmake v0.1.44
[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: the type `hbs_pow_sys::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: 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `hbs_pow_sys::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 13.66s
[INFO] running `Command { std: "docker" "inspect" "adb4a4f220c840ffff45a7047e624149674d1d850a7ca9541e2fdf9627eddf93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb4a4f220c840ffff45a7047e624149674d1d850a7ca9541e2fdf9627eddf93", kill_on_drop: false }`
[INFO] [stdout] adb4a4f220c840ffff45a7047e624149674d1d850a7ca9541e2fdf9627eddf93