[INFO] fetching crate kcp-ovo 0.1.1...
[INFO] testing kcp-ovo-0.1.1 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate kcp-ovo 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate kcp-ovo 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate kcp-ovo 0.1.1
[INFO] tweaked toml for crates.io crate kcp-ovo 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kcp-ovo 0.1.1 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 kcp-ovo 0.1.1 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 }`
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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_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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "c7df14c6e9ccbf4eef94ef455fcf43da9148b490905b361a00e3e3526aebacab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7df14c6e9ccbf4eef94ef455fcf43da9148b490905b361a00e3e3526aebacab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7df14c6e9ccbf4eef94ef455fcf43da9148b490905b361a00e3e3526aebacab", 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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb8dc1e0a3812491358e7c0e084fdf895d4aa2d2308ef678debd9fadd33bf66e
[INFO] running `Command { std: "docker" "start" "-a" "eb8dc1e0a3812491358e7c0e084fdf895d4aa2d2308ef678debd9fadd33bf66e", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.6
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[INFO] [stderr]    Compiling kcp-ovo v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `Command { std: "docker" "inspect" "eb8dc1e0a3812491358e7c0e084fdf895d4aa2d2308ef678debd9fadd33bf66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb8dc1e0a3812491358e7c0e084fdf895d4aa2d2308ef678debd9fadd33bf66e", kill_on_drop: false }`
[INFO] [stdout] eb8dc1e0a3812491358e7c0e084fdf895d4aa2d2308ef678debd9fadd33bf66e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling kcp-ovo v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> examples/low-level-api.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> examples/low-level-api.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `std::io::Error`
[INFO] [stdout]   --> examples/file-transfer.rs:71:57
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn recv_file(output_path: &str) -> io::Result<()> {
[INFO] [stdout]    |                                    -------------- expected `std::io::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let mut listener = KcpListener::bind("0.0.0.0:9999")?;
[INFO] [stdout]    |                        ---------------------------------^ the trait `From<KcpError>` is not implemented for `std::io::Error`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this can't be annotated with `?` because it has type `Result<_, KcpError>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              `std::io::Error` implements `From<ErrorKind>`
[INFO] [stdout]              `std::io::Error` implements `From<IntoInnerError<W>>`
[INFO] [stdout]              `std::io::Error` implements `From<NulError>`
[INFO] [stdout]              `std::io::Error` implements `From<TryReserveError>`
[INFO] [stdout]              `std::io::Error` implements `From<std::fs::TryLockError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `std::io::Error`
[INFO] [stdout]   --> examples/file-transfer.rs:75:47
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn recv_file(output_path: &str) -> io::Result<()> {
[INFO] [stdout]    |                                    -------------- expected `std::io::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 75 |     let (mut stream, addr) = listener.accept()?;
[INFO] [stdout]    |                                       --------^ the trait `From<KcpError>` is not implemented for `std::io::Error`
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this can't be annotated with `?` because it has type `Result<_, KcpError>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              `std::io::Error` implements `From<ErrorKind>`
[INFO] [stdout]              `std::io::Error` implements `From<IntoInnerError<W>>`
[INFO] [stdout]              `std::io::Error` implements `From<NulError>`
[INFO] [stdout]              `std::io::Error` implements `From<TryReserveError>`
[INFO] [stdout]              `std::io::Error` implements `From<std::fs::TryLockError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_usage` is never used
[INFO] [stdout]    --> examples/low-level-api.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn print_usage() {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `std::io::Error`
[INFO] [stdout]    --> examples/file-transfer.rs:182:58
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn send_file(input_path: &str) -> io::Result<()> {
[INFO] [stdout]     |                                   -------------- expected `std::io::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 182 |     let mut stream = KcpStream::connect("127.0.0.1:9999")?;
[INFO] [stdout]     |                      ------------------------------------^ the trait `From<KcpError>` is not implemented for `std::io::Error`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      this can't be annotated with `?` because it has type `Result<_, KcpError>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `std::io::Error` implements `From<ErrorKind>`
[INFO] [stdout]               `std::io::Error` implements `From<IntoInnerError<W>>`
[INFO] [stdout]               `std::io::Error` implements `From<NulError>`
[INFO] [stdout]               `std::io::Error` implements `From<TryReserveError>`
[INFO] [stdout]               `std::io::Error` implements `From<std::fs::TryLockError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kcp-ovo` (example "file-transfer") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cfd923d4b57768c92f0e34cefa475cfc65bbf7d1da9e94f0470561942198a6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd923d4b57768c92f0e34cefa475cfc65bbf7d1da9e94f0470561942198a6f3", kill_on_drop: false }`
[INFO] [stdout] cfd923d4b57768c92f0e34cefa475cfc65bbf7d1da9e94f0470561942198a6f3
