[INFO] fetching crate sigio 0.1.0...
[INFO] testing sigio-0.1.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] extracting crate sigio 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate sigio 0.1.0
[INFO] finished tweaking crates.io crate sigio 0.1.0
[INFO] tweaked toml for crates.io crate sigio 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sigio 0.1.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 52 packages to latest compatible versions
[INFO] [stderr]       Adding nix v0.29.0 (available: v0.31.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3809d5966647cb44d2bd7aa7e737fde5d09cf5d8eb722c538772061ab044a13c
[INFO] running `Command { std: "docker" "start" "-a" "3809d5966647cb44d2bd7aa7e737fde5d09cf5d8eb722c538772061ab044a13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3809d5966647cb44d2bd7aa7e737fde5d09cf5d8eb722c538772061ab044a13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3809d5966647cb44d2bd7aa7e737fde5d09cf5d8eb722c538772061ab044a13c", kill_on_drop: false }`
[INFO] [stdout] 3809d5966647cb44d2bd7aa7e737fde5d09cf5d8eb722c538772061ab044a13c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fb0cd00b55996ddf1e1ddb5e1ea03ac603862bb49e13216aa0dfa78e436a3e8
[INFO] running `Command { std: "docker" "start" "-a" "5fb0cd00b55996ddf1e1ddb5e1ea03ac603862bb49e13216aa0dfa78e436a3e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.52.3
[INFO] [stderr]    Compiling sigio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::pin::Pin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `futures-io`
[INFO] [stdout]  --> src/compat/mod.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[cfg(feature = "futures-io")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default` and `tokio`
[INFO] [stdout]   = help: consider adding `futures-io` 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: unused import: `std::task::Waker`
[INFO] [stdout]  --> src/compat/tokio.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::task::Waker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncRead`
[INFO] [stdout]  --> src/compat/tokio.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::io::{ReadBuf, AsyncRead, AsyncWrite};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/convert.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/lib.rs:128:1
[INFO] [stdout]     |
[INFO] [stdout] 128 | extern fn handler(signal: c_int, info: &siginfo_t, _: *const ()) {
[INFO] [stdout]     | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::*`
[INFO] [stdout]    --> src/lib.rs:161:43
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     c_err(unsafe { libc::fcntl(fd, { use libc::*; $op }, $($args),*) })
[INFO] [stdout]     |                                                          ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |         fcntl!(F_SETSIG, signo)?;
[INFO] [stdout]     |         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `fcntl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/compat/tokio.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         ctx: &mut Context<'_>
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/compat/tokio.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ctx: &mut Context<'_>
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_fd` is never used
[INFO] [stdout]    --> src/lib.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | impl File {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 151 |     /// may cause unexpected results if fd has unusual flags set
[INFO] [stdout] 152 |     fn from_fd<FD: IntoRawFd>(fd: FD) -> io::Result<File> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "5fb0cd00b55996ddf1e1ddb5e1ea03ac603862bb49e13216aa0dfa78e436a3e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fb0cd00b55996ddf1e1ddb5e1ea03ac603862bb49e13216aa0dfa78e436a3e8", kill_on_drop: false }`
[INFO] [stdout] 5fb0cd00b55996ddf1e1ddb5e1ea03ac603862bb49e13216aa0dfa78e436a3e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0d78f9482061d5bd9de5ad2b3657dbcd537b7da8a8b7ed1d04947f2506c42f6
[INFO] running `Command { std: "docker" "start" "-a" "c0d78f9482061d5bd9de5ad2b3657dbcd537b7da8a8b7ed1d04947f2506c42f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling jiff v0.2.24
[INFO] [stderr]    Compiling anstyle-parse v1.0.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling test-log-core v0.2.20
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling test-log-macros v0.2.20
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling env_filter v1.0.1
[INFO] [stderr]    Compiling tokio v1.52.3
[INFO] [stderr]    Compiling env_logger v0.11.10
[INFO] [stderr]    Compiling test-log v0.2.20
[INFO] [stderr]    Compiling sigio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::pin::Pin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `futures-io`
[INFO] [stdout]  --> src/compat/mod.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[cfg(feature = "futures-io")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default` and `tokio`
[INFO] [stdout]   = help: consider adding `futures-io` 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: unused import: `std::task::Waker`
[INFO] [stdout]  --> src/compat/tokio.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::task::Waker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncRead`
[INFO] [stdout]  --> src/compat/tokio.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::io::{ReadBuf, AsyncRead, AsyncWrite};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/convert.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/lib.rs:128:1
[INFO] [stdout]     |
[INFO] [stdout] 128 | extern fn handler(signal: c_int, info: &siginfo_t, _: *const ()) {
[INFO] [stdout]     | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::*`
[INFO] [stdout]    --> src/lib.rs:161:43
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     c_err(unsafe { libc::fcntl(fd, { use libc::*; $op }, $($args),*) })
[INFO] [stdout]     |                                                          ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |         fcntl!(F_SETSIG, signo)?;
[INFO] [stdout]     |         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `fcntl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/compat/tokio.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         ctx: &mut Context<'_>
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/compat/tokio.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ctx: &mut Context<'_>
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_fd` is never used
[INFO] [stdout]    --> src/lib.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | impl File {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 151 |     /// may cause unexpected results if fd has unusual flags set
[INFO] [stdout] 152 |     fn from_fd<FD: IntoRawFd>(fd: FD) -> io::Result<File> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::pin::Pin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `futures-io`
[INFO] [stdout]  --> src/compat/mod.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[cfg(feature = "futures-io")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default` and `tokio`
[INFO] [stdout]   = help: consider adding `futures-io` 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: unused import: `std::task::Waker`
[INFO] [stdout]  --> src/compat/tokio.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::task::Waker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncRead`
[INFO] [stdout]  --> src/compat/tokio.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::io::{ReadBuf, AsyncRead, AsyncWrite};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/convert.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/lib.rs:128:1
[INFO] [stdout]     |
[INFO] [stdout] 128 | extern fn handler(signal: c_int, info: &siginfo_t, _: *const ()) {
[INFO] [stdout]     | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::*`
[INFO] [stdout]    --> src/lib.rs:161:43
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     c_err(unsafe { libc::fcntl(fd, { use libc::*; $op }, $($args),*) })
[INFO] [stdout]     |                                                          ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |         fcntl!(F_SETSIG, signo)?;
[INFO] [stdout]     |         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `fcntl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/compat/tokio.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         ctx: &mut Context<'_>
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/compat/tokio.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ctx: &mut Context<'_>
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `read_start`
[INFO] [stdout]    --> src/lib.rs:275:8
[INFO] [stdout]     |
[INFO] [stdout] 275 |             let read_start = Instant::now();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_read_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `read_end`
[INFO] [stdout]    --> src/lib.rs:277:8
[INFO] [stdout]     |
[INFO] [stdout] 277 |             let read_end = Instant::now();
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_read_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nw`
[INFO] [stdout]    --> src/lib.rs:307:8
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let (nw, nr) = tokio::try_join!(
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_nw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.24s
[INFO] running `Command { std: "docker" "inspect" "c0d78f9482061d5bd9de5ad2b3657dbcd537b7da8a8b7ed1d04947f2506c42f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d78f9482061d5bd9de5ad2b3657dbcd537b7da8a8b7ed1d04947f2506c42f6", kill_on_drop: false }`
[INFO] [stdout] c0d78f9482061d5bd9de5ad2b3657dbcd537b7da8a8b7ed1d04947f2506c42f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e513828201885787c78df6ab2fd5ccc45a47587867a513225b0f20723ed40358
[INFO] running `Command { std: "docker" "start" "-a" "e513828201885787c78df6ab2fd5ccc45a47587867a513225b0f20723ed40358", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::pin::Pin;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `futures-io`
[INFO] [stderr]  --> src/compat/mod.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[cfg(feature = "futures-io")]
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: expected values for `feature` are: `default` and `tokio`
[INFO] [stderr]   = help: consider adding `futures-io` as a feature in `Cargo.toml`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Waker`
[INFO] [stderr]  --> src/compat/tokio.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::task::Waker;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AsyncRead`
[INFO] [stderr]  --> src/compat/tokio.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | use tokio::io::{ReadBuf, AsyncRead, AsyncWrite};
[INFO] [stderr]   |                          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> src/convert.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stderr]    --> src/lib.rs:128:1
[INFO] [stderr]     |
[INFO] [stderr] 128 | extern fn handler(signal: c_int, info: &siginfo_t, _: *const ()) {
[INFO] [stderr]     | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(missing_abi)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::*`
[INFO] [stderr]    --> src/lib.rs:161:43
[INFO] [stderr]     |
[INFO] [stderr] 161 |                     c_err(unsafe { libc::fcntl(fd, { use libc::*; $op }, $($args),*) })
[INFO] [stderr]     |                                                          ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 172 |         fcntl!(F_SETSIG, signo)?;
[INFO] [stderr]     |         ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `fcntl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/compat/tokio.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         ctx: &mut Context<'_>
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/compat/tokio.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         ctx: &mut Context<'_>
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_fd` is never used
[INFO] [stderr]    --> src/lib.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 150 | impl File {
[INFO] [stderr]     | --------- associated function in this implementation
[INFO] [stderr] 151 |     /// may cause unexpected results if fd has unusual flags set
[INFO] [stderr] 152 |     fn from_fd<FD: IntoRawFd>(fd: FD) -> io::Result<File> {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sigio` (lib) generated 10 warnings (run `cargo fix --lib -p sigio` to apply 8 suggestions)
[INFO] [stderr] warning: unused variable: `read_start`
[INFO] [stderr]    --> src/lib.rs:275:8
[INFO] [stderr]     |
[INFO] [stderr] 275 |             let read_start = Instant::now();
[INFO] [stderr]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_read_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read_end`
[INFO] [stderr]    --> src/lib.rs:277:8
[INFO] [stderr]     |
[INFO] [stderr] 277 |             let read_end = Instant::now();
[INFO] [stderr]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_read_end`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nw`
[INFO] [stderr]    --> src/lib.rs:307:8
[INFO] [stderr]     |
[INFO] [stderr] 307 |         let (nw, nr) = tokio::try_join!(
[INFO] [stderr]     |              ^^ help: if this is intentional, prefix it with an underscore: `_nw`
[INFO] [stderr] 
[INFO] [stderr] warning: `sigio` (lib test) generated 12 warnings (9 duplicates) (run `cargo fix --lib -p sigio --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sigio-4ea3964074bc7492)
[INFO] [stdout] 
[INFO] [stdout] running 66 tests
[INFO] [stdout] test gen::fcntl::bindgen_test_layout___fsid_t ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_f_owner_ex ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_flock64 ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_stat ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_stat64 ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_flock ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_timespec ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___atomic_wide_counter__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___atomic_wide_counter ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_iovec ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___once_flag ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___fsid_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___pthread_cond_s ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___pthread_internal_slist ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___pthread_internal_list ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___pthread_mutex_s ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___pthread_rwlock_arch_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout___sigset_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__fpreg ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__fpx_sw_bytes ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__fpxreg ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__libc_fpstate ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__libc_fpxreg ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__libc_xmmreg ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__xmmreg ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__xsave_hdr ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__xstate ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__ymmh_state ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_mcontext_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_attr_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_barrier_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_barrierattr_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_cond_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_condattr_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_mutex_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_mutexattr_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_rwlock_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_pthread_rwlockattr_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigaction ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigaction__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigcontext ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigcontext__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigevent ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigevent__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigevent__bindgen_ty_1__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_2 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_3 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_4 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout__fpstate ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_5 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_5__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_5__bindgen_ty_1__bindgen_ty_1 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_6 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_siginfo_t__bindgen_ty_1__bindgen_ty_7 ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigstack ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_sigval ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_stack_t ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_timespec ... ok
[INFO] [stdout] test gen::signal::bindgen_test_layout_ucontext_t ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::pipe_full_async ... ok
[INFO] [stdout] test gen::fcntl::bindgen_test_layout_file_handle ... ok
[INFO] [stdout] test tests::pipe_mixed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 66 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sigio
[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] running `Command { std: "docker" "inspect" "e513828201885787c78df6ab2fd5ccc45a47587867a513225b0f20723ed40358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e513828201885787c78df6ab2fd5ccc45a47587867a513225b0f20723ed40358", kill_on_drop: false }`
[INFO] [stdout] e513828201885787c78df6ab2fd5ccc45a47587867a513225b0f20723ed40358
