[INFO] fetching crate ni 0.1.0...
[INFO] checking ni-0.1.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate ni 0.1.0 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate ni 0.1.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ni 0.1.0
[INFO] finished tweaking crates.io crate ni 0.1.0
[INFO] tweaked toml for crates.io crate ni 0.1.0 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bd9dca8b8d0923b436f28491749e32ea6e1c14579a5988a6c0ec1e7ddce5650
[INFO] running `Command { std: "docker" "start" "-a" "3bd9dca8b8d0923b436f28491749e32ea6e1c14579a5988a6c0ec1e7ddce5650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bd9dca8b8d0923b436f28491749e32ea6e1c14579a5988a6c0ec1e7ddce5650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bd9dca8b8d0923b436f28491749e32ea6e1c14579a5988a6c0ec1e7ddce5650", kill_on_drop: false }`
[INFO] [stdout] 3bd9dca8b8d0923b436f28491749e32ea6e1c14579a5988a6c0ec1e7ddce5650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94be7d4e491e06e8bd7900416066ff5384dbb09a8aeaaabbe33ea39a29166654
[INFO] running `Command { std: "docker" "start" "-a" "94be7d4e491e06e8bd7900416066ff5384dbb09a8aeaaabbe33ea39a29166654", kill_on_drop: false }`
[INFO] [stderr]     Checking ni v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `count`
[INFO] [stdout]   --> src/executor/files.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `LIMIT`
[INFO] [stdout]   --> src/executor/files.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub const LIMIT: usize = 64;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open`
[INFO] [stdout]   --> src/executor/files.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn open<F>(&mut self, file: F) -> Result<UWord, (FilesError, F)>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `close`
[INFO] [stdout]    --> src/executor/files.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn close(&mut self, idx: UWord) -> Result<Box<dyn File>, FilesError> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/executor/memory.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn update<T, F>(&mut self, ptr: UWord, f: F) -> Result<(), MemoryError>
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `types`
[INFO] [stdout]   --> src/nil/layout.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub(super) types: View<Ty<'t>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/nil/layout.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub(super) name: &'n str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ptr`
[INFO] [stdout]   --> src/nil/layout.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub(super) ptr: UWord,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `types`
[INFO] [stdout]   --> src/nil/layout.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub(super) types: View<Ty<'t>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/nil/layout.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub(super) name: &'n str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ptr`
[INFO] [stdout]   --> src/nil/layout.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub(super) ptr: UWord,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "94be7d4e491e06e8bd7900416066ff5384dbb09a8aeaaabbe33ea39a29166654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94be7d4e491e06e8bd7900416066ff5384dbb09a8aeaaabbe33ea39a29166654", kill_on_drop: false }`
[INFO] [stdout] 94be7d4e491e06e8bd7900416066ff5384dbb09a8aeaaabbe33ea39a29166654