[INFO] fetching crate bastion 0.4.3...
[INFO] checking bastion-0.4.3 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate bastion 0.4.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bastion 0.4.3 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bastion 0.4.3
[INFO] finished tweaking crates.io crate bastion 0.4.3
[INFO] tweaked toml for crates.io crate bastion 0.4.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate bastion 0.4.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-lite v1.8.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f95e300a82774048f2ed07af3a9bb83572b1846212b850bebc00fdae033030c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f95e300a82774048f2ed07af3a9bb83572b1846212b850bebc00fdae033030c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f95e300a82774048f2ed07af3a9bb83572b1846212b850bebc00fdae033030c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f95e300a82774048f2ed07af3a9bb83572b1846212b850bebc00fdae033030c3", kill_on_drop: false }`
[INFO] [stdout] f95e300a82774048f2ed07af3a9bb83572b1846212b850bebc00fdae033030c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8245332adf6510f49aa072091a6d2fe06ef47d17d0f7906287c980fa780821c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c8245332adf6510f49aa072091a6d2fe06ef47d17d0f7906287c980fa780821c", kill_on_drop: false }`
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[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking lever v0.1.1-alpha.11
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking bastion-executor v0.4.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
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[INFO] [stderr]     Checking bastion v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/message.rs:710:9
[INFO] [stdout]     |
[INFO] [stdout] 710 | /         macro_rules! signature {
[INFO] [stdout] 711 | |             () => {
[INFO] [stdout] 712 | |                 sign
[INFO] [stdout] 713 | |             };
[INFO] [stdout] 714 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:720:17
[INFO] [stdout]     |
[INFO] [stdout] 720 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 721 | |                     ref msg: &'static str => {
[INFO] [stdout] 722 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 723 | |                     };
[INFO] [stdout] 724 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 725 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/message.rs:733:13
[INFO] [stdout]     |
[INFO] [stdout] 733 | /             macro_rules! answer {
[INFO] [stdout] 734 | |                 ($ctx:expr, $answer:expr) => {
[INFO] [stdout] 735 | |                     {
[INFO] [stdout] 736 | |                         let sign = $ctx.signature();
[INFO] [stdout] ...   |
[INFO] [stdout] 739 | |                 };
[INFO] [stdout] 740 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:720:17
[INFO] [stdout]     |
[INFO] [stdout] 720 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 721 | |                     ref msg: &'static str => {
[INFO] [stdout] 722 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 723 | |                     };
[INFO] [stdout] 724 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 725 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/message.rs:710:9
[INFO] [stdout]     |
[INFO] [stdout] 710 | /         macro_rules! signature {
[INFO] [stdout] 711 | |             () => {
[INFO] [stdout] 712 | |                 sign
[INFO] [stdout] 713 | |             };
[INFO] [stdout] 714 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:741:17
[INFO] [stdout]     |
[INFO] [stdout] 741 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 742 | |                     ref msg: &'static str => {
[INFO] [stdout] 743 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 744 | |                     };
[INFO] [stdout] 745 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 746 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/message.rs:733:13
[INFO] [stdout]     |
[INFO] [stdout] 733 | /             macro_rules! answer {
[INFO] [stdout] 734 | |                 ($ctx:expr, $answer:expr) => {
[INFO] [stdout] 735 | |                     {
[INFO] [stdout] 736 | |                         let sign = $ctx.signature();
[INFO] [stdout] ...   |
[INFO] [stdout] 739 | |                 };
[INFO] [stdout] 740 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:741:17
[INFO] [stdout]     |
[INFO] [stdout] 741 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 742 | |                     ref msg: &'static str => {
[INFO] [stdout] 743 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 744 | |                     };
[INFO] [stdout] 745 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 746 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/message.rs:710:9
[INFO] [stdout]     |
[INFO] [stdout] 710 | /         macro_rules! signature {
[INFO] [stdout] 711 | |             () => {
[INFO] [stdout] 712 | |                 sign
[INFO] [stdout] 713 | |             };
[INFO] [stdout] 714 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:773:17
[INFO] [stdout]     |
[INFO] [stdout] 773 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(1)).await.expect("recv_timeout failed"),
[INFO] [stdout] 774 | |                     ref msg: &'static str => {
[INFO] [stdout] 775 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 776 | |                     };
[INFO] [stdout] 777 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 778 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/message.rs:733:13
[INFO] [stdout]     |
[INFO] [stdout] 733 | /             macro_rules! answer {
[INFO] [stdout] 734 | |                 ($ctx:expr, $answer:expr) => {
[INFO] [stdout] 735 | |                     {
[INFO] [stdout] 736 | |                         let sign = $ctx.signature();
[INFO] [stdout] ...   |
[INFO] [stdout] 739 | |                 };
[INFO] [stdout] 740 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:773:17
[INFO] [stdout]     |
[INFO] [stdout] 773 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(1)).await.expect("recv_timeout failed"),
[INFO] [stdout] 774 | |                     ref msg: &'static str => {
[INFO] [stdout] 775 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 776 | |                     };
[INFO] [stdout] 777 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 778 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]    --> src/message.rs:708:24
[INFO] [stdout]     |
[INFO] [stdout] 708 |           let (mut $var, sign) = signed.extract();
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_sign`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:720:17
[INFO] [stdout]     |
[INFO] [stdout] 720 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 721 | |                     ref msg: &'static str => {
[INFO] [stdout] 722 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 723 | |                     };
[INFO] [stdout] 724 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 725 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sender`
[INFO] [stdout]    --> src/message.rs:731:17
[INFO] [stdout]     |
[INFO] [stdout] 731 |               let sender = sender.unwrap();
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:720:17
[INFO] [stdout]     |
[INFO] [stdout] 720 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 721 | |                     ref msg: &'static str => {
[INFO] [stdout] 722 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 723 | |                     };
[INFO] [stdout] 724 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 725 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]    --> src/message.rs:708:24
[INFO] [stdout]     |
[INFO] [stdout] 708 |           let (mut $var, sign) = signed.extract();
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_sign`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:741:17
[INFO] [stdout]     |
[INFO] [stdout] 741 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 742 | |                     ref msg: &'static str => {
[INFO] [stdout] 743 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 744 | |                     };
[INFO] [stdout] 745 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 746 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sender`
[INFO] [stdout]    --> src/message.rs:731:17
[INFO] [stdout]     |
[INFO] [stdout] 731 |               let sender = sender.unwrap();
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:741:17
[INFO] [stdout]     |
[INFO] [stdout] 741 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 742 | |                     ref msg: &'static str => {
[INFO] [stdout] 743 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 744 | |                     };
[INFO] [stdout] 745 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 746 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]    --> src/message.rs:708:24
[INFO] [stdout]     |
[INFO] [stdout] 708 |           let (mut $var, sign) = signed.extract();
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_sign`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:773:17
[INFO] [stdout]     |
[INFO] [stdout] 773 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(1)).await.expect("recv_timeout failed"),
[INFO] [stdout] 774 | |                     ref msg: &'static str => {
[INFO] [stdout] 775 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 776 | |                     };
[INFO] [stdout] 777 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 778 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sender`
[INFO] [stdout]    --> src/message.rs:731:17
[INFO] [stdout]     |
[INFO] [stdout] 731 |               let sender = sender.unwrap();
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:773:17
[INFO] [stdout]     |
[INFO] [stdout] 773 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(1)).await.expect("recv_timeout failed"),
[INFO] [stdout] 774 | |                     ref msg: &'static str => {
[INFO] [stdout] 775 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 776 | |                     };
[INFO] [stdout] 777 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 778 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/message.rs:706:13
[INFO] [stdout]     |
[INFO] [stdout] 706 |           let mut signed = $msg;
[INFO] [stdout]     |               ----^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:720:17
[INFO] [stdout]     |
[INFO] [stdout] 720 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 721 | |                     ref msg: &'static str => {
[INFO] [stdout] 722 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 723 | |                     };
[INFO] [stdout] 724 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 725 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/message.rs:706:13
[INFO] [stdout]     |
[INFO] [stdout] 706 |           let mut signed = $msg;
[INFO] [stdout]     |               ----^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:741:17
[INFO] [stdout]     |
[INFO] [stdout] 741 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 742 | |                     ref msg: &'static str => {
[INFO] [stdout] 743 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 744 | |                     };
[INFO] [stdout] 745 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 746 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/message.rs:706:13
[INFO] [stdout]     |
[INFO] [stdout] 706 |           let mut signed = $msg;
[INFO] [stdout]     |               ----^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/context.rs:773:17
[INFO] [stdout]     |
[INFO] [stdout] 773 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(1)).await.expect("recv_timeout failed"),
[INFO] [stdout] 774 | |                     ref msg: &'static str => {
[INFO] [stdout] 775 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 776 | |                     };
[INFO] [stdout] 777 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 778 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `Command { std: "docker" "inspect" "c8245332adf6510f49aa072091a6d2fe06ef47d17d0f7906287c980fa780821c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8245332adf6510f49aa072091a6d2fe06ef47d17d0f7906287c980fa780821c", kill_on_drop: false }`
[INFO] [stdout] c8245332adf6510f49aa072091a6d2fe06ef47d17d0f7906287c980fa780821c