[INFO] fetching crate ioslice 0.6.0...
[INFO] checking ioslice-0.6.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate ioslice 0.6.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ioslice 0.6.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ioslice 0.6.0
[INFO] finished tweaking crates.io crate ioslice 0.6.0
[INFO] tweaked toml for crates.io crate ioslice 0.6.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a2b94bd0e3a7a679ee173edf161c559973ce5f1177e76496d65593e98381c3f
[INFO] running `Command { std: "docker" "start" "-a" "7a2b94bd0e3a7a679ee173edf161c559973ce5f1177e76496d65593e98381c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a2b94bd0e3a7a679ee173edf161c559973ce5f1177e76496d65593e98381c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a2b94bd0e3a7a679ee173edf161c559973ce5f1177e76496d65593e98381c3f", kill_on_drop: false }`
[INFO] [stdout] 7a2b94bd0e3a7a679ee173edf161c559973ce5f1177e76496d65593e98381c3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 641100cb2c74d22f06c43ab3b115a81f18f292386ce2580dd169f67e7a582575
[INFO] running `Command { std: "docker" "start" "-a" "641100cb2c74d22f06c43ab3b115a81f18f292386ce2580dd169f67e7a582575", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking ioslice v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]  --> src/iovec.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[cfg(feature = "redox_syscall")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]   = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]   --> src/iovec.rs:56:47
[INFO] [stdout]    |
[INFO] [stdout] 56 |     #[cfg(all(unix, feature = "libc", not(all(feature = "redox_syscall"))))]
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]    = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]   --> src/iovec.rs:59:11
[INFO] [stdout]    |
[INFO] [stdout] 59 |     #[cfg(feature = "redox_syscall")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]    = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:150:23
[INFO] [stdout]     |
[INFO] [stdout] 150 |             #[cfg(not(feature = "redox_syscall"))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:153:19
[INFO] [stdout]     |
[INFO] [stdout] 153 |             #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 190 |         #[cfg(not(feature = "redox_syscall"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:193:15
[INFO] [stdout]     |
[INFO] [stdout] 193 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:338:47
[INFO] [stdout]     |
[INFO] [stdout] 338 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:341:15
[INFO] [stdout]     |
[INFO] [stdout] 341 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:351:47
[INFO] [stdout]     |
[INFO] [stdout] 351 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:354:15
[INFO] [stdout]     |
[INFO] [stdout] 354 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:365:47
[INFO] [stdout]     |
[INFO] [stdout] 365 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:369:15
[INFO] [stdout]     |
[INFO] [stdout] 369 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:387:47
[INFO] [stdout]     |
[INFO] [stdout] 387 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:391:15
[INFO] [stdout]     |
[INFO] [stdout] 391 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:416:51
[INFO] [stdout]     |
[INFO] [stdout] 416 |             #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:424:19
[INFO] [stdout]     |
[INFO] [stdout] 424 |             #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]  --> src/iovec.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[cfg(feature = "redox_syscall")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]   = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]   --> src/iovec.rs:56:47
[INFO] [stdout]    |
[INFO] [stdout] 56 |     #[cfg(all(unix, feature = "libc", not(all(feature = "redox_syscall"))))]
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]    = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]   --> src/iovec.rs:59:11
[INFO] [stdout]    |
[INFO] [stdout] 59 |     #[cfg(feature = "redox_syscall")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]    = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:150:23
[INFO] [stdout]     |
[INFO] [stdout] 150 |             #[cfg(not(feature = "redox_syscall"))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:153:19
[INFO] [stdout]     |
[INFO] [stdout] 153 |             #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 190 |         #[cfg(not(feature = "redox_syscall"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:193:15
[INFO] [stdout]     |
[INFO] [stdout] 193 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:338:47
[INFO] [stdout]     |
[INFO] [stdout] 338 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:341:15
[INFO] [stdout]     |
[INFO] [stdout] 341 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:351:47
[INFO] [stdout]     |
[INFO] [stdout] 351 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:354:15
[INFO] [stdout]     |
[INFO] [stdout] 354 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:365:47
[INFO] [stdout]     |
[INFO] [stdout] 365 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:369:15
[INFO] [stdout]     |
[INFO] [stdout] 369 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:387:47
[INFO] [stdout]     |
[INFO] [stdout] 387 |         #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:391:15
[INFO] [stdout]     |
[INFO] [stdout] 391 |         #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:416:51
[INFO] [stdout]     |
[INFO] [stdout] 416 |             #[cfg(all(unix, feature = "libc", not(feature = "redox_syscall")))]
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `redox_syscall`
[INFO] [stdout]    --> src/iovec.rs:424:19
[INFO] [stdout]     |
[INFO] [stdout] 424 |             #[cfg(feature = "redox_syscall")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, `io_box`, `libc`, `nightly`, `stable_deref_trait`, `std`, and `winapi`
[INFO] [stdout]     = help: consider adding `redox_syscall` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "641100cb2c74d22f06c43ab3b115a81f18f292386ce2580dd169f67e7a582575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "641100cb2c74d22f06c43ab3b115a81f18f292386ce2580dd169f67e7a582575", kill_on_drop: false }`
[INFO] [stdout] 641100cb2c74d22f06c43ab3b115a81f18f292386ce2580dd169f67e7a582575