[INFO] fetching crate tokio-udt 0.1.0-alpha.8...
[INFO] checking tokio-udt-0.1.0-alpha.8 against 1.95.0 for pr-155915
[INFO] extracting crate tokio-udt 0.1.0-alpha.8 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate tokio-udt 0.1.0-alpha.8
[INFO] finished tweaking crates.io crate tokio-udt 0.1.0-alpha.8
[INFO] tweaked toml for crates.io crate tokio-udt 0.1.0-alpha.8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-udt 0.1.0-alpha.8 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 tokio-udt 0.1.0-alpha.8 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-timerfd v0.2.0
[INFO] [stderr]   Downloaded timerfd v1.3.0
[INFO] [stderr]   Downloaded block-buffer v0.10.3
[INFO] [stderr]   Downloaded futures-core v0.3.24
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded io-lifetimes v0.6.1
[INFO] [stderr]   Downloaded socket2 v0.4.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded digest v0.10.5
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded rustix v0.34.8
[INFO] [stderr]   Downloaded nix v0.24.2
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded linux-raw-sys v0.0.46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 31d29280337a822a80f5c046699a2364ef5a6c3ca110db628fee87f7de40c80e
[INFO] running `Command { std: "docker" "start" "-a" "31d29280337a822a80f5c046699a2364ef5a6c3ca110db628fee87f7de40c80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31d29280337a822a80f5c046699a2364ef5a6c3ca110db628fee87f7de40c80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d29280337a822a80f5c046699a2364ef5a6c3ca110db628fee87f7de40c80e", kill_on_drop: false }`
[INFO] [stdout] 31d29280337a822a80f5c046699a2364ef5a6c3ca110db628fee87f7de40c80e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3783e2e363962c5a7ca51612ac1105f500c4ce18a17eda001aa1b6ff6816db2a
[INFO] running `Command { std: "docker" "start" "-a" "3783e2e363962c5a7ca51612ac1105f500c4ce18a17eda001aa1b6ff6816db2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling io-lifetimes v0.6.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling rustix v0.34.8
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking linux-raw-sys v0.0.46
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking timerfd v1.3.0
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]     Checking tokio-timerfd v0.2.0
[INFO] [stderr]     Checking tokio-udt v0.1.0-alpha.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/multiplexer.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct UdtMultiplexer {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 16 |     pub id: MultiplexerId,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UdtMultiplexer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/socket.rs:154:19
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn rcv_buffer(&self) -> std::sync::MutexGuard<RcvBuffer> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided 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] 154 |     fn rcv_buffer(&self) -> std::sync::MutexGuard<'_, RcvBuffer> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/socket.rs:166:14
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn state(&self) -> std::sync::MutexGuard<SocketState> {
[INFO] [stdout]     |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |              |
[INFO] [stdout]     |              the lifetime is elided 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] 166 |     fn state(&self) -> std::sync::MutexGuard<'_, SocketState> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/multiplexer.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct UdtMultiplexer {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 16 |     pub id: MultiplexerId,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UdtMultiplexer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/socket.rs:154:19
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn rcv_buffer(&self) -> std::sync::MutexGuard<RcvBuffer> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided 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] 154 |     fn rcv_buffer(&self) -> std::sync::MutexGuard<'_, RcvBuffer> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/socket.rs:166:14
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn state(&self) -> std::sync::MutexGuard<SocketState> {
[INFO] [stdout]     |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |              |
[INFO] [stdout]     |              the lifetime is elided 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] 166 |     fn state(&self) -> std::sync::MutexGuard<'_, SocketState> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.37s
[INFO] running `Command { std: "docker" "inspect" "3783e2e363962c5a7ca51612ac1105f500c4ce18a17eda001aa1b6ff6816db2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3783e2e363962c5a7ca51612ac1105f500c4ce18a17eda001aa1b6ff6816db2a", kill_on_drop: false }`
[INFO] [stdout] 3783e2e363962c5a7ca51612ac1105f500c4ce18a17eda001aa1b6ff6816db2a
