[INFO] fetching crate npnc 0.2.1...
[INFO] checking npnc-0.2.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate npnc 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate npnc 0.2.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate npnc 0.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate npnc 0.2.1
[INFO] tweaked toml for crates.io crate npnc 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc0a6a1d452c33f0ee724363856962ae8231536a4707ecbce23c1d0ea5d56e65
[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" "bc0a6a1d452c33f0ee724363856962ae8231536a4707ecbce23c1d0ea5d56e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc0a6a1d452c33f0ee724363856962ae8231536a4707ecbce23c1d0ea5d56e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0a6a1d452c33f0ee724363856962ae8231536a4707ecbce23c1d0ea5d56e65", kill_on_drop: false }`
[INFO] [stdout] bc0a6a1d452c33f0ee724363856962ae8231536a4707ecbce23c1d0ea5d56e65
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b7ee4303479e8ed516799d2baf28112740c8f8d0d7cf2749f6d110564531352
[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" "5b7ee4303479e8ed516799d2baf28112740c8f8d0d7cf2749f6d110564531352", kill_on_drop: false }`
[INFO] [stderr]     Checking hazard v0.3.1
[INFO] [stderr]     Checking queuecheck v0.1.1
[INFO] [stderr]     Checking npnc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:105:33
[INFO] [stdout]     |
[INFO] [stdout] 105 |         write!(formatter, "{}", error::Error::description(self))
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:149:33
[INFO] [stdout]     |
[INFO] [stdout] 149 |         write!(formatter, "{}", error::Error::description(self))
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:52:24
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut item = mem::uninitialized();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/bounded/mpmc.rs:137:29
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let item = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/bounded/mpmc.rs:144:24
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let mut item = mem::uninitialized();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:105:33
[INFO] [stdout]     |
[INFO] [stdout] 105 |         write!(formatter, "{}", error::Error::description(self))
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:149:33
[INFO] [stdout]     |
[INFO] [stdout] 149 |         write!(formatter, "{}", error::Error::description(self))
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:52:24
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut item = mem::uninitialized();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/bounded/mpmc.rs:137:29
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let item = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/bounded/mpmc.rs:144:24
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let mut item = mem::uninitialized();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "5b7ee4303479e8ed516799d2baf28112740c8f8d0d7cf2749f6d110564531352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b7ee4303479e8ed516799d2baf28112740c8f8d0d7cf2749f6d110564531352", kill_on_drop: false }`
[INFO] [stdout] 5b7ee4303479e8ed516799d2baf28112740c8f8d0d7cf2749f6d110564531352