[INFO] fetching crate io-uring-bearer 0.2.0-pre3...
[INFO] testing io-uring-bearer-0.2.0-pre3 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate io-uring-bearer 0.2.0-pre3 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate io-uring-bearer 0.2.0-pre3
[INFO] finished tweaking crates.io crate io-uring-bearer 0.2.0-pre3
[INFO] tweaked toml for crates.io crate io-uring-bearer 0.2.0-pre3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate io-uring-bearer 0.2.0-pre3 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate io-uring-bearer 0.2.0-pre3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slabbable-stablevec v0.1.0
[INFO] [stderr]   Downloaded ysockaddr v0.2.0
[INFO] [stderr]   Downloaded io-uring-opcode v0.2.0-pre3
[INFO] [stderr]   Downloaded slabbable-slab v0.1.0
[INFO] [stderr]   Downloaded capacity v0.1.2
[INFO] [stderr]   Downloaded io-uring v0.7.4
[INFO] [stderr]   Downloaded io-uring-owner v0.2.0-pre1
[INFO] [stderr]   Downloaded io-uring-fd v0.2.0-pre1
[INFO] [stderr]   Downloaded slabbable-hash v0.1.0
[INFO] [stderr]   Downloaded slabbable v0.1.0
[INFO] [stderr]   Downloaded slabbable-impl-selector v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5caac420a2c9099fe1bfb2c63b26ddd74d67db744cf2048f60ca82f6b3efc62a
[INFO] running `Command { std: "docker" "start" "-a" "5caac420a2c9099fe1bfb2c63b26ddd74d67db744cf2048f60ca82f6b3efc62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5caac420a2c9099fe1bfb2c63b26ddd74d67db744cf2048f60ca82f6b3efc62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5caac420a2c9099fe1bfb2c63b26ddd74d67db744cf2048f60ca82f6b3efc62a", kill_on_drop: false }`
[INFO] [stdout] 5caac420a2c9099fe1bfb2c63b26ddd74d67db744cf2048f60ca82f6b3efc62a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19a206bdeacf55b404c55d1dc3f9681f2c4caf0e040354aa9efc17b43f95e9d9
[INFO] running `Command { std: "docker" "start" "-a" "19a206bdeacf55b404c55d1dc3f9681f2c4caf0e040354aa9efc17b43f95e9d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling foldhash v0.1.4
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling io-uring v0.7.4
[INFO] [stderr]    Compiling slabbable v0.1.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling io-uring-owner v0.2.0-pre1
[INFO] [stderr]    Compiling io-uring-fd v0.2.0-pre1
[INFO] [stderr]    Compiling capacity v0.1.2
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling slabbable-hash v0.1.0
[INFO] [stderr]    Compiling slabbable-impl-selector v0.1.0
[INFO] [stderr]    Compiling ysockaddr v0.2.0
[INFO] [stderr]    Compiling io-uring-opcode v0.2.0-pre3
[INFO] [stderr]    Compiling io-uring-bearer v0.2.0-pre3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `buf_idx` is never read
[INFO] [stdout]   --> src/slab/buffer.rs:88:16
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub(crate) struct TakenMutableBuffer {
[INFO] [stdout]    |                   ------------------ field in this struct
[INFO] [stdout] 88 |     pub(crate) buf_idx: usize,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TakenMutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buf_idx`, `buf_size`, and `buf_kernel_index` are never read
[INFO] [stdout]    --> src/slab/buffer.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) struct TakenImmutableBuffer {
[INFO] [stdout]     |                   -------------------- fields in this struct
[INFO] [stdout] 112 |     pub(crate) buf_idx: usize,
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 113 |     pub(crate) buf_const_u8: *const u8,
[INFO] [stdout] 114 |     pub(crate) buf_size: u32,
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 115 |     pub(crate) buf_kernel_index: u16,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TakenImmutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_addr` is never read
[INFO] [stdout]   --> src/slab/send_zc.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct SendZcFixedRec {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     to_addr: Option<DestTo>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SendZcFixedRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_addr` is never read
[INFO] [stdout]   --> src/slab/send_zc.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SendZcUnsafeRefRec {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     to_addr: Option<DestTo>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SendZcUnsafeRefRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `V4` and `V6` are never constructed
[INFO] [stdout]   --> src/slab/send_zc.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub enum DestTo {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 84 |     V4(DestToV4),
[INFO] [stdout]    |     ^^
[INFO] [stdout] 85 |     V6(DestToV6),
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestTo` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stdout]   --> src/slab/send_zc.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct DestToV4 {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 91 |     pub(crate) sockaddr: libc::sockaddr_in,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 92 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestToV4` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stdout]   --> src/slab/send_zc.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct DestToV6 {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 98 |     pub(crate) sockaddr: libc::sockaddr_in6,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 99 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestToV6` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fno2fixed` is never read
[INFO] [stdout]   --> src/fixed.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct FixedFdRegister {
[INFO] [stdout]    |                   --------------- field in this struct
[INFO] [stdout] 12 |     fno2fixed: SelectedHashMap<u32, u32, SelectedHasher<u32>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FixedFdRegister` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "19a206bdeacf55b404c55d1dc3f9681f2c4caf0e040354aa9efc17b43f95e9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a206bdeacf55b404c55d1dc3f9681f2c4caf0e040354aa9efc17b43f95e9d9", kill_on_drop: false }`
[INFO] [stdout] 19a206bdeacf55b404c55d1dc3f9681f2c4caf0e040354aa9efc17b43f95e9d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99198f54f146fb991f7609cba2325a8a2d810244dd4bcae985d109b3a9c55980
[INFO] running `Command { std: "docker" "start" "-a" "99198f54f146fb991f7609cba2325a8a2d810244dd4bcae985d109b3a9c55980", kill_on_drop: false }`
[INFO] [stdout] warning: field `buf_idx` is never read
[INFO] [stdout]   --> src/slab/buffer.rs:88:16
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub(crate) struct TakenMutableBuffer {
[INFO] [stdout]    |                   ------------------ field in this struct
[INFO] [stdout] 88 |     pub(crate) buf_idx: usize,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TakenMutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buf_idx`, `buf_size`, and `buf_kernel_index` are never read
[INFO] [stdout]    --> src/slab/buffer.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) struct TakenImmutableBuffer {
[INFO] [stdout]     |                   -------------------- fields in this struct
[INFO] [stdout] 112 |     pub(crate) buf_idx: usize,
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 113 |     pub(crate) buf_const_u8: *const u8,
[INFO] [stdout] 114 |     pub(crate) buf_size: u32,
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 115 |     pub(crate) buf_kernel_index: u16,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TakenImmutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_addr` is never read
[INFO] [stdout]   --> src/slab/send_zc.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct SendZcFixedRec {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     to_addr: Option<DestTo>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SendZcFixedRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_addr` is never read
[INFO] [stdout]   --> src/slab/send_zc.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SendZcUnsafeRefRec {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     to_addr: Option<DestTo>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SendZcUnsafeRefRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `V4` and `V6` are never constructed
[INFO] [stdout]   --> src/slab/send_zc.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub enum DestTo {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 84 |     V4(DestToV4),
[INFO] [stdout]    |     ^^
[INFO] [stdout] 85 |     V6(DestToV6),
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestTo` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stdout]   --> src/slab/send_zc.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct DestToV4 {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 91 |     pub(crate) sockaddr: libc::sockaddr_in,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 92 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestToV4` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stdout]   --> src/slab/send_zc.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct DestToV6 {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 98 |     pub(crate) sockaddr: libc::sockaddr_in6,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 99 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestToV6` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fno2fixed` is never read
[INFO] [stdout]   --> src/fixed.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct FixedFdRegister {
[INFO] [stdout]    |                   --------------- field in this struct
[INFO] [stdout] 12 |     fno2fixed: SelectedHashMap<u32, u32, SelectedHasher<u32>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FixedFdRegister` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling io-uring-bearer v0.2.0-pre3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `buf_idx` is never read
[INFO] [stdout]   --> src/slab/buffer.rs:88:16
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub(crate) struct TakenMutableBuffer {
[INFO] [stdout]    |                   ------------------ field in this struct
[INFO] [stdout] 88 |     pub(crate) buf_idx: usize,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TakenMutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buf_idx`, `buf_size`, and `buf_kernel_index` are never read
[INFO] [stdout]    --> src/slab/buffer.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) struct TakenImmutableBuffer {
[INFO] [stdout]     |                   -------------------- fields in this struct
[INFO] [stdout] 112 |     pub(crate) buf_idx: usize,
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 113 |     pub(crate) buf_const_u8: *const u8,
[INFO] [stdout] 114 |     pub(crate) buf_size: u32,
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 115 |     pub(crate) buf_kernel_index: u16,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TakenImmutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_addr` is never read
[INFO] [stdout]   --> src/slab/send_zc.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct SendZcFixedRec {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     to_addr: Option<DestTo>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SendZcFixedRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_addr` is never read
[INFO] [stdout]   --> src/slab/send_zc.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SendZcUnsafeRefRec {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     to_addr: Option<DestTo>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SendZcUnsafeRefRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `V4` and `V6` are never constructed
[INFO] [stdout]   --> src/slab/send_zc.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub enum DestTo {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 84 |     V4(DestToV4),
[INFO] [stdout]    |     ^^
[INFO] [stdout] 85 |     V6(DestToV6),
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestTo` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stdout]   --> src/slab/send_zc.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct DestToV4 {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 91 |     pub(crate) sockaddr: libc::sockaddr_in,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 92 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestToV4` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stdout]   --> src/slab/send_zc.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct DestToV6 {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 98 |     pub(crate) sockaddr: libc::sockaddr_in6,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 99 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DestToV6` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fno2fixed` is never read
[INFO] [stdout]   --> src/fixed.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct FixedFdRegister {
[INFO] [stdout]    |                   --------------- field in this struct
[INFO] [stdout] 12 |     fno2fixed: SelectedHashMap<u32, u32, SelectedHasher<u32>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FixedFdRegister` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "99198f54f146fb991f7609cba2325a8a2d810244dd4bcae985d109b3a9c55980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99198f54f146fb991f7609cba2325a8a2d810244dd4bcae985d109b3a9c55980", kill_on_drop: false }`
[INFO] [stdout] 99198f54f146fb991f7609cba2325a8a2d810244dd4bcae985d109b3a9c55980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34946a4d4b62e2ce610f358565378191ba3e1c7f2209b6ed311ccd83a958a60c
[INFO] running `Command { std: "docker" "start" "-a" "34946a4d4b62e2ce610f358565378191ba3e1c7f2209b6ed311ccd83a958a60c", kill_on_drop: false }`
[INFO] [stderr] warning: field `buf_idx` is never read
[INFO] [stderr]   --> src/slab/buffer.rs:88:16
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub(crate) struct TakenMutableBuffer {
[INFO] [stderr]    |                   ------------------ field in this struct
[INFO] [stderr] 88 |     pub(crate) buf_idx: usize,
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TakenMutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `buf_idx`, `buf_size`, and `buf_kernel_index` are never read
[INFO] [stderr]    --> src/slab/buffer.rs:112:16
[INFO] [stderr]     |
[INFO] [stderr] 111 | pub(crate) struct TakenImmutableBuffer {
[INFO] [stderr]     |                   -------------------- fields in this struct
[INFO] [stderr] 112 |     pub(crate) buf_idx: usize,
[INFO] [stderr]     |                ^^^^^^^
[INFO] [stderr] 113 |     pub(crate) buf_const_u8: *const u8,
[INFO] [stderr] 114 |     pub(crate) buf_size: u32,
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr] 115 |     pub(crate) buf_kernel_index: u16,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TakenImmutableBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `to_addr` is never read
[INFO] [stderr]   --> src/slab/send_zc.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub struct SendZcFixedRec {
[INFO] [stderr]    |            -------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 23 |     to_addr: Option<DestTo>,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `SendZcFixedRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `to_addr` is never read
[INFO] [stderr]   --> src/slab/send_zc.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct SendZcUnsafeRefRec {
[INFO] [stderr]    |            ------------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 33 |     to_addr: Option<DestTo>,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `SendZcUnsafeRefRec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `V4` and `V6` are never constructed
[INFO] [stderr]   --> src/slab/send_zc.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub enum DestTo {
[INFO] [stderr]    |          ------ variants in this enum
[INFO] [stderr] 84 |     V4(DestToV4),
[INFO] [stderr]    |     ^^
[INFO] [stderr] 85 |     V6(DestToV6),
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DestTo` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stderr]   --> src/slab/send_zc.rs:91:16
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub struct DestToV4 {
[INFO] [stderr]    |            -------- fields in this struct
[INFO] [stderr] 91 |     pub(crate) sockaddr: libc::sockaddr_in,
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 92 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DestToV4` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `sockaddr` and `socklen_t` are never read
[INFO] [stderr]   --> src/slab/send_zc.rs:98:16
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub struct DestToV6 {
[INFO] [stderr]    |            -------- fields in this struct
[INFO] [stderr] 98 |     pub(crate) sockaddr: libc::sockaddr_in6,
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 99 |     pub(crate) socklen_t: libc::socklen_t,
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DestToV6` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `fno2fixed` is never read
[INFO] [stderr]   --> src/fixed.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub(crate) struct FixedFdRegister {
[INFO] [stderr]    |                   --------------- field in this struct
[INFO] [stderr] 12 |     fno2fixed: SelectedHashMap<u32, u32, SelectedHasher<u32>>,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FixedFdRegister` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `io-uring-bearer` (lib) generated 8 warnings
[INFO] [stderr] warning: `io-uring-bearer` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/io_uring_bearer-ddf76127729c5632)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io_uring_bearer
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/uring.rs - uring::UringBearer<C>::from_io_uring (line 72) ... ignored
[INFO] [stdout] test src/uring.rs - uring::UringBearer<C>::with_capacity (line 53) ... ignored
[INFO] [stdout] test src/capacity.rs - capacity::BearerCapacityKind (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34946a4d4b62e2ce610f358565378191ba3e1c7f2209b6ed311ccd83a958a60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34946a4d4b62e2ce610f358565378191ba3e1c7f2209b6ed311ccd83a958a60c", kill_on_drop: false }`
[INFO] [stdout] 34946a4d4b62e2ce610f358565378191ba3e1c7f2209b6ed311ccd83a958a60c
