[INFO] cloning repository https://github.com/simmons/tokio-aio-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simmons/tokio-aio-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimmons%2Ftokio-aio-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimmons%2Ftokio-aio-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e652b5c62960c38f5d3e1ca0ed7c258d92bfa1b
[INFO] checking simmons/tokio-aio-examples against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimmons%2Ftokio-aio-examples" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/simmons/tokio-aio-examples
[INFO] finished tweaking git repo https://github.com/simmons/tokio-aio-examples
[INFO] tweaked toml for git repo https://github.com/simmons/tokio-aio-examples written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/simmons/tokio-aio-examples on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/simmons/tokio-aio-examples 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38bff6aa9bd387f115f1dad7ea08d3ed44f7f3fa78e8d802ec7711a2e281f3de
[INFO] running `Command { std: "docker" "start" "-a" "38bff6aa9bd387f115f1dad7ea08d3ed44f7f3fa78e8d802ec7711a2e281f3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38bff6aa9bd387f115f1dad7ea08d3ed44f7f3fa78e8d802ec7711a2e281f3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38bff6aa9bd387f115f1dad7ea08d3ed44f7f3fa78e8d802ec7711a2e281f3de", kill_on_drop: false }`
[INFO] [stdout] 38bff6aa9bd387f115f1dad7ea08d3ed44f7f3fa78e8d802ec7711a2e281f3de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4efed8a38a48a6f44e6bef90e6132db678065ad9e3ba2e7a0de10ff865e0e1a
[INFO] running `Command { std: "docker" "start" "-a" "d4efed8a38a48a6f44e6bef90e6132db678065ad9e3ba2e7a0de10ff865e0e1a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking tokio-core v0.1.11
[INFO] [stderr]     Checking tokio-aio-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bin/echo-tokio-mpsc.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(socket: &UdpSocket, tx: mpsc::Sender<Message>) -> UdpReader {
[INFO] [stdout]    |                    ^^^^^^^^^^ the lifetime is elided here    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(socket: &UdpSocket, tx: mpsc::Sender<Message>) -> UdpReader<'_> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bin/echo-tokio-mpsc.rs:126:20
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn new(socket: &UdpSocket, rx: mpsc::Receiver<Message>) -> UdpWriter {
[INFO] [stdout]     |                    ^^^^^^^^^^ the lifetime is elided here      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn new(socket: &UdpSocket, rx: mpsc::Receiver<Message>) -> UdpWriter<'_> {
[INFO] [stdout]     |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/bin/echo-tokio-mpsc.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |             drop(message);
[INFO] [stdout]     |             ^^^^^-------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&Message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 147 -             drop(message);
[INFO] [stdout] 147 +             let _ = message;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bin/echo-tokio-mpsc.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(socket: &UdpSocket, tx: mpsc::Sender<Message>) -> UdpReader {
[INFO] [stdout]    |                    ^^^^^^^^^^ the lifetime is elided here    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(socket: &UdpSocket, tx: mpsc::Sender<Message>) -> UdpReader<'_> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bin/echo-tokio-mpsc.rs:126:20
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn new(socket: &UdpSocket, rx: mpsc::Receiver<Message>) -> UdpWriter {
[INFO] [stdout]     |                    ^^^^^^^^^^ the lifetime is elided here      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn new(socket: &UdpSocket, rx: mpsc::Receiver<Message>) -> UdpWriter<'_> {
[INFO] [stdout]     |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/bin/echo-tokio-mpsc.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |             drop(message);
[INFO] [stdout]     |             ^^^^^-------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&Message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 147 -             drop(message);
[INFO] [stdout] 147 +             let _ = message;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `Command { std: "docker" "inspect" "d4efed8a38a48a6f44e6bef90e6132db678065ad9e3ba2e7a0de10ff865e0e1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4efed8a38a48a6f44e6bef90e6132db678065ad9e3ba2e7a0de10ff865e0e1a", kill_on_drop: false }`
[INFO] [stdout] d4efed8a38a48a6f44e6bef90e6132db678065ad9e3ba2e7a0de10ff865e0e1a
