[INFO] fetching crate cross-fs 0.1.0...
[INFO] checking cross-fs-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate cross-fs 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cross-fs 0.1.0
[INFO] finished tweaking crates.io crate cross-fs 0.1.0
[INFO] tweaked toml for crates.io crate cross-fs 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cross-fs 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cross-fs 0.1.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c13dce761997d8a3b97b7cd65a0b000e8e0179a3d7d3e65b2b99f5ee68594043
[INFO] running `Command { std: "docker" "start" "-a" "c13dce761997d8a3b97b7cd65a0b000e8e0179a3d7d3e65b2b99f5ee68594043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c13dce761997d8a3b97b7cd65a0b000e8e0179a3d7d3e65b2b99f5ee68594043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c13dce761997d8a3b97b7cd65a0b000e8e0179a3d7d3e65b2b99f5ee68594043", kill_on_drop: false }`
[INFO] [stdout] c13dce761997d8a3b97b7cd65a0b000e8e0179a3d7d3e65b2b99f5ee68594043
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e8d8c559d6b6a5a2e3a53592a527d53e5189db096caad8d233c0c4e90b45767
[INFO] running `Command { std: "docker" "start" "-a" "1e8d8c559d6b6a5a2e3a53592a527d53e5189db096caad8d233c0c4e90b45767", kill_on_drop: false }`
[INFO] [stderr]     Checking rustix v1.1.2
[INFO] [stderr]     Checking cross-fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(can_vector, io_const_error)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn read_vectored(&self, bufs: &mut [io::IoSliceMut<'_>]) -> io::Result<usize> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 105 |         self.read_vectored(bufs)
[INFO] [stdout]     |         ------------------------ recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn write_vectored(&self, bufs: &[io::IoSlice<'_>]) -> io::Result<usize> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 113 |         self.write_vectored(bufs)
[INFO] [stdout]     |         ------------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cross-fs` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1e8d8c559d6b6a5a2e3a53592a527d53e5189db096caad8d233c0c4e90b45767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8d8c559d6b6a5a2e3a53592a527d53e5189db096caad8d233c0c4e90b45767", kill_on_drop: false }`
[INFO] [stdout] 1e8d8c559d6b6a5a2e3a53592a527d53e5189db096caad8d233c0c4e90b45767
