[INFO] fetching crate mtcp-rs 0.1.11...
[INFO] testing mtcp-rs-0.1.11 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mtcp-rs 0.1.11 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mtcp-rs 0.1.11
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mtcp-rs 0.1.11
[INFO] tweaked toml for crates.io crate mtcp-rs 0.1.11 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mtcp-rs 0.1.11 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mtcp-rs 0.1.11 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-targets v0.42.1
[INFO] [stderr]   Downloaded spare_buffer v0.1.1
[INFO] [stderr]   Downloaded hermit-abi v0.2.6
[INFO] [stderr]   Downloaded is-terminal v0.4.3
[INFO] [stderr]   Downloaded dns-lookup v1.0.8
[INFO] [stderr]   Downloaded hermit-abi v0.3.1
[INFO] [stderr]   Downloaded errno v0.2.8
[INFO] [stderr]   Downloaded lazy_rc v0.1.3
[INFO] [stderr]   Downloaded num_cpus v1.15.0
[INFO] [stderr]   Downloaded ctrlc v3.2.5
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.14
[INFO] [stderr]   Downloaded io-lifetimes v1.0.5
[INFO] [stderr]   Downloaded mio v0.8.6
[INFO] [stderr]   Downloaded aho-corasick v0.7.20
[INFO] [stderr]   Downloaded regex v1.7.1
[INFO] [stderr]   Downloaded nix v0.26.2
[INFO] [stderr]   Downloaded rustix v0.36.8
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.1
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.1
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.1
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.1
[INFO] [stderr]   Downloaded libc v0.2.139
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.1
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.1
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 436b9d2cd70ad048c97245dc47305f6a39763569839ba303ba2b85105bd7251b
[INFO] running `Command { std: "docker" "start" "-a" "436b9d2cd70ad048c97245dc47305f6a39763569839ba303ba2b85105bd7251b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "436b9d2cd70ad048c97245dc47305f6a39763569839ba303ba2b85105bd7251b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "436b9d2cd70ad048c97245dc47305f6a39763569839ba303ba2b85105bd7251b", kill_on_drop: false }`
[INFO] [stdout] 436b9d2cd70ad048c97245dc47305f6a39763569839ba303ba2b85105bd7251b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37fe2ddeead680482f846fbb4052d715d02143ca754e0464b6fe856ae98eacd4
[INFO] running `Command { std: "docker" "start" "-a" "37fe2ddeead680482f846fbb4052d715d02143ca754e0464b6fe856ae98eacd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling spare_buffer v0.1.1
[INFO] [stderr]    Compiling lazy_rc v0.1.3
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling mtcp-rs v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/stream.rs:164:64
[INFO] [stdout]     |
[INFO] [stdout] 164 |                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stdout]     |                                                                ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stdout] 164 +                     for _event in events.iter().filter(|event| event.token() == token) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/manager.rs:98:27
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub(crate) fn context(&self) -> Ref<TcpPollContext> {
[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] 98 |     pub(crate) fn context(&self) -> Ref<'_, TcpPollContext> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/manager.rs:102:31
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn context_mut(&self) -> RefMut<TcpPollContext> {
[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] 102 |     pub(crate) fn context_mut(&self) -> RefMut<'_, TcpPollContext> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "37fe2ddeead680482f846fbb4052d715d02143ca754e0464b6fe856ae98eacd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fe2ddeead680482f846fbb4052d715d02143ca754e0464b6fe856ae98eacd4", kill_on_drop: false }`
[INFO] [stdout] 37fe2ddeead680482f846fbb4052d715d02143ca754e0464b6fe856ae98eacd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9669c8d41db489eabf684eb95e7b0e4e0105e85f993e745b9b44dab4371409f8
[INFO] running `Command { std: "docker" "start" "-a" "9669c8d41db489eabf684eb95e7b0e4e0105e85f993e745b9b44dab4371409f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling dns-lookup v1.0.8
[INFO] [stderr]    Compiling mtcp-rs v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/stream.rs:164:64
[INFO] [stdout]     |
[INFO] [stdout] 164 |                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stdout]     |                                                                ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stdout] 164 +                     for _event in events.iter().filter(|event| event.token() == token) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/manager.rs:98:27
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub(crate) fn context(&self) -> Ref<TcpPollContext> {
[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] 98 |     pub(crate) fn context(&self) -> Ref<'_, TcpPollContext> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/manager.rs:102:31
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn context_mut(&self) -> RefMut<TcpPollContext> {
[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] 102 |     pub(crate) fn context_mut(&self) -> RefMut<'_, TcpPollContext> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling ctrlc v3.2.5
[INFO] [stderr]    Compiling is-terminal v0.4.3
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/stream.rs:164:64
[INFO] [stdout]     |
[INFO] [stdout] 164 |                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stdout]     |                                                                ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stdout] 164 +                     for _event in events.iter().filter(|event| event.token() == token) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/manager.rs:98:27
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub(crate) fn context(&self) -> Ref<TcpPollContext> {
[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] 98 |     pub(crate) fn context(&self) -> Ref<'_, TcpPollContext> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/manager.rs:102:31
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn context_mut(&self) -> RefMut<TcpPollContext> {
[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] 102 |     pub(crate) fn context_mut(&self) -> RefMut<'_, TcpPollContext> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.25s
[INFO] running `Command { std: "docker" "inspect" "9669c8d41db489eabf684eb95e7b0e4e0105e85f993e745b9b44dab4371409f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9669c8d41db489eabf684eb95e7b0e4e0105e85f993e745b9b44dab4371409f8", kill_on_drop: false }`
[INFO] [stdout] 9669c8d41db489eabf684eb95e7b0e4e0105e85f993e745b9b44dab4371409f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5770a260f3602c2424a46399219f8dd18614bc23beaa24f1f3b78eb51d85abb7
[INFO] running `Command { std: "docker" "start" "-a" "5770a260f3602c2424a46399219f8dd18614bc23beaa24f1f3b78eb51d85abb7", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/stream.rs:164:64
[INFO] [stderr]     |
[INFO] [stderr] 164 |                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stderr]     |                                                                ^                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 164 -                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stderr] 164 +                     for _event in events.iter().filter(|event| event.token() == token) {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/manager.rs:98:27
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub(crate) fn context(&self) -> Ref<TcpPollContext> {
[INFO] [stderr]    |                           ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub(crate) fn context(&self) -> Ref<'_, TcpPollContext> {
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/manager.rs:102:31
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub(crate) fn context_mut(&self) -> RefMut<TcpPollContext> {
[INFO] [stderr]     |                               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub(crate) fn context_mut(&self) -> RefMut<'_, TcpPollContext> {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mtcp-rs` (lib) generated 3 warnings (run `cargo fix --lib -p mtcp-rs` to apply 3 suggestions)
[INFO] [stderr] warning: `mtcp-rs` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mtcp_rs-eb4d74a4d7503557)
[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] [stderr]    Doc-tests mtcp_rs
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/stream.rs:164:64
[INFO] [stderr]     |
[INFO] [stderr] 164 |                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stderr]     |                                                                ^                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 164 -                     for _event in events.iter().filter(|event| (event.token() == token)) {
[INFO] [stderr] 164 +                     for _event in events.iter().filter(|event| event.token() == token) {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "5770a260f3602c2424a46399219f8dd18614bc23beaa24f1f3b78eb51d85abb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5770a260f3602c2424a46399219f8dd18614bc23beaa24f1f3b78eb51d85abb7", kill_on_drop: false }`
[INFO] [stdout] 5770a260f3602c2424a46399219f8dd18614bc23beaa24f1f3b78eb51d85abb7
