[INFO] fetching crate mfio-rt 0.1.0...
[INFO] checking mfio-rt-0.1.0 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate mfio-rt 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mfio-rt 0.1.0 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mfio-rt 0.1.0
[INFO] finished tweaking crates.io crate mfio-rt 0.1.0
[INFO] tweaked toml for crates.io crate mfio-rt 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 237 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.5)
[INFO] [stderr]       Adding flume v0.10.14 (available: v0.11.1)
[INFO] [stderr]       Adding glommio v0.8.0 (available: v0.9.0)
[INFO] [stderr]       Adding io-uring v0.6.4 (available: v0.7.1)
[INFO] [stderr]       Adding mio v0.8.11 (available: v1.0.2)
[INFO] [stderr]       Adding nix v0.26.4 (available: v0.29.0)
[INFO] [stderr]       Adding pollster v0.3.0 (available: v0.4.0)
[INFO] [stderr]       Adding smol v1.3.0 (available: v2.0.2)
[INFO] [stderr]       Adding typed-path v0.7.1 (available: v0.9.3)
[INFO] [stderr]       Adding windows v0.51.1 (available: v0.58.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mfio-derive v0.1.0
[INFO] [stderr]   Downloaded pollster-macro v0.1.0
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[INFO] [stderr]   Downloaded typed-path v0.7.1
[INFO] [stderr]   Downloaded io-uring v0.6.4
[INFO] [stderr]   Downloaded mfio v0.1.0
[INFO] [stderr]   Downloaded rio v0.9.4
[INFO] [stderr]   Downloaded sketches-ddsketch v0.1.3
[INFO] [stderr]   Downloaded glommio v0.8.0
[INFO] [stderr]   Downloaded windows v0.51.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "a40e0e94d5bccd665fea9609fe6d85e8c95d1d6bc24a766d51006dda398b5af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a40e0e94d5bccd665fea9609fe6d85e8c95d1d6bc24a766d51006dda398b5af3", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "f9d3a7ffab65e8bbc8e58e9d0cce4ceb3a04fd6731fb16f1592c44ef9d08edd1", kill_on_drop: false }`
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[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/native/mod.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |                       if let Ok(v) = impls::$mod::Runtime::try_new() {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/native/impls/io_uring/mod.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 |     FileWrite(AllocedOrTransferred<RdPerm>, RawBox),
[INFO] [stdout]    |     --------- field in this variant         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 46 |     FileWrite(AllocedOrTransferred<RdPerm>, ()),
[INFO] [stdout]    |                                             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `diff_paths` is never used
[INFO] [stdout]   --> src/util.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn diff_paths<P, B>(path: P, base: B) -> Option<PathBuf>
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `static_conv_ref` is never used
[INFO] [stdout]   --> src/util/stream.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | trait StaticConv {
[INFO] [stdout]    |       ---------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 22 |     unsafe fn static_conv_ref<'a, 'b>(inp: &'b Self::This<'static>) -> &'b Self::This<'a> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/native/mod.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |                       if let Ok(v) = impls::$mod::Runtime::try_new() {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/native/impls/io_uring/mod.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 |     FileWrite(AllocedOrTransferred<RdPerm>, RawBox),
[INFO] [stdout]    |     --------- field in this variant         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 46 |     FileWrite(AllocedOrTransferred<RdPerm>, ()),
[INFO] [stdout]    |                                             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `static_conv_ref` is never used
[INFO] [stdout]   --> src/util/stream.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | trait StaticConv {
[INFO] [stdout]    |       ---------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 22 |     unsafe fn static_conv_ref<'a, 'b>(inp: &'b Self::This<'static>) -> &'b Self::This<'a> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.76s
[INFO] running `Command { std: "docker" "inspect" "f9d3a7ffab65e8bbc8e58e9d0cce4ceb3a04fd6731fb16f1592c44ef9d08edd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d3a7ffab65e8bbc8e58e9d0cce4ceb3a04fd6731fb16f1592c44ef9d08edd1", kill_on_drop: false }`
[INFO] [stdout] f9d3a7ffab65e8bbc8e58e9d0cce4ceb3a04fd6731fb16f1592c44ef9d08edd1
