[INFO] fetching crate bastion 0.4.5...
[INFO] checking bastion-0.4.5 against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] extracting crate bastion 0.4.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate bastion 0.4.5 on toolchain 8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bastion 0.4.5
[INFO] finished tweaking crates.io crate bastion 0.4.5
[INFO] tweaked toml for crates.io crate bastion 0.4.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate bastion 0.4.5 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" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cd56bf701c6687240fb4922d710f0590a13ef5cb2d87666fd5c858486784617
[INFO] running `Command { std: "docker" "start" "-a" "1cd56bf701c6687240fb4922d710f0590a13ef5cb2d87666fd5c858486784617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cd56bf701c6687240fb4922d710f0590a13ef5cb2d87666fd5c858486784617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd56bf701c6687240fb4922d710f0590a13ef5cb2d87666fd5c858486784617", kill_on_drop: false }`
[INFO] [stdout] 1cd56bf701c6687240fb4922d710f0590a13ef5cb2d87666fd5c858486784617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6469e841ffb234206a7db878421a8751e3a2138580941c2841c2b528429825ea
[INFO] running `Command { std: "docker" "start" "-a" "6469e841ffb234206a7db878421a8751e3a2138580941c2841c2b528429825ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
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[INFO] [stderr]    Compiling futures-core v0.3.19
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[INFO] [stderr]     Checking itertools v0.10.3
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[INFO] [stderr]     Checking bastion v0.4.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `signature`
[INFO] [stdout]    --> src/message.rs:757:22
[INFO] [stdout]     |
[INFO] [stdout] 757 |         macro_rules! signature {
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `answer`
[INFO] [stdout]    --> src/message.rs:780:26
[INFO] [stdout]     |
[INFO] [stdout] 780 |             macro_rules! answer {
[INFO] [stdout]     |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]    --> src/message.rs:755:24
[INFO] [stdout]     |
[INFO] [stdout] 755 |           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:864:17
[INFO] [stdout]     |
[INFO] [stdout] 864 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 865 | |                     ref msg: &'static str => {
[INFO] [stdout] 866 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 867 | |                     };
[INFO] [stdout] 868 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 869 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:778:17
[INFO] [stdout]     |
[INFO] [stdout] 778 |               let sender = sender.unwrap();
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/context.rs:864:17
[INFO] [stdout]     |
[INFO] [stdout] 864 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 865 | |                     ref msg: &'static str => {
[INFO] [stdout] 866 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 867 | |                     };
[INFO] [stdout] 868 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 869 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:753:13
[INFO] [stdout]     |
[INFO] [stdout] 753 |           let mut signed = $msg;
[INFO] [stdout]     |               ----^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/context.rs:864:17
[INFO] [stdout]     |
[INFO] [stdout] 864 | /                 msg! { ctx.recv().await?,
[INFO] [stdout] 865 | |                     ref msg: &'static str => {
[INFO] [stdout] 866 | |                         assert_eq!(msg, &"test recv");
[INFO] [stdout] 867 | |                     };
[INFO] [stdout] 868 | |                     msg: _ => { panic!("didn't receive the expected message {:?}", msg);};
[INFO] [stdout] 869 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:755:24
[INFO] [stdout]     |
[INFO] [stdout] 755 |           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:885:17
[INFO] [stdout]     |
[INFO] [stdout] 885 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 886 | |                     ref msg: &'static str => {
[INFO] [stdout] 887 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 888 | |                     };
[INFO] [stdout] 889 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 890 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:778:17
[INFO] [stdout]     |
[INFO] [stdout] 778 |               let sender = sender.unwrap();
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/context.rs:885:17
[INFO] [stdout]     |
[INFO] [stdout] 885 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 886 | |                     ref msg: &'static str => {
[INFO] [stdout] 887 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 888 | |                     };
[INFO] [stdout] 889 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 890 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:753:13
[INFO] [stdout]     |
[INFO] [stdout] 753 |           let mut signed = $msg;
[INFO] [stdout]     |               ----^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/context.rs:885:17
[INFO] [stdout]     |
[INFO] [stdout] 885 | /                 msg! { ctx.try_recv().await.expect("no message"),
[INFO] [stdout] 886 | |                     ref msg: &'static str => {
[INFO] [stdout] 887 | |                         assert_eq!(msg, &"test try recv");
[INFO] [stdout] 888 | |                     };
[INFO] [stdout] 889 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 890 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:755:24
[INFO] [stdout]     |
[INFO] [stdout] 755 |           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:917:17
[INFO] [stdout]     |
[INFO] [stdout] 917 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(5)).await.expect("recv_timeout failed"),
[INFO] [stdout] 918 | |                     ref msg: &'static str => {
[INFO] [stdout] 919 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 920 | |                     };
[INFO] [stdout] 921 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 922 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:778:17
[INFO] [stdout]     |
[INFO] [stdout] 778 |               let sender = sender.unwrap();
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/context.rs:917:17
[INFO] [stdout]     |
[INFO] [stdout] 917 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(5)).await.expect("recv_timeout failed"),
[INFO] [stdout] 918 | |                     ref msg: &'static str => {
[INFO] [stdout] 919 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 920 | |                     };
[INFO] [stdout] 921 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 922 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `msg` (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:753:13
[INFO] [stdout]     |
[INFO] [stdout] 753 |           let mut signed = $msg;
[INFO] [stdout]     |               ----^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/context.rs:917:17
[INFO] [stdout]     |
[INFO] [stdout] 917 | /                 msg! { ctx.try_recv_timeout(std::time::Duration::from_millis(5)).await.expect("recv_timeout failed"),
[INFO] [stdout] 918 | |                     ref msg: &'static str => {
[INFO] [stdout] 919 | |                         assert_eq!(msg, &"test recv timeout");
[INFO] [stdout] 920 | |                     };
[INFO] [stdout] 921 | |                     _: _ => { panic!("didn't receive the expected message");};
[INFO] [stdout] 922 | |                 }
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `msg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.24s
[INFO] running `Command { std: "docker" "inspect" "6469e841ffb234206a7db878421a8751e3a2138580941c2841c2b528429825ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6469e841ffb234206a7db878421a8751e3a2138580941c2841c2b528429825ea", kill_on_drop: false }`
[INFO] [stdout] 6469e841ffb234206a7db878421a8751e3a2138580941c2841c2b528429825ea
