[INFO] fetching crate rumtk-v2-interface 0.2.15...
[INFO] checking rumtk-v2-interface-0.2.15 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate rumtk-v2-interface 0.2.15 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rumtk-v2-interface 0.2.15
[INFO] finished tweaking crates.io crate rumtk-v2-interface 0.2.15
[INFO] tweaked toml for crates.io crate rumtk-v2-interface 0.2.15 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rumtk-v2-interface 0.2.15 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rumtk-v2-interface 0.2.15 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--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] 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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03ff1ff6fde1346800050341d1b87a1827d991d78859589b34101af8c6e7ea29
[INFO] running `Command { std: "docker" "start" "-a" "03ff1ff6fde1346800050341d1b87a1827d991d78859589b34101af8c6e7ea29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03ff1ff6fde1346800050341d1b87a1827d991d78859589b34101af8c6e7ea29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03ff1ff6fde1346800050341d1b87a1827d991d78859589b34101af8c6e7ea29", kill_on_drop: false }`
[INFO] [stdout] 03ff1ff6fde1346800050341d1b87a1827d991d78859589b34101af8c6e7ea29
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d14121b5e39d7a5350c4f68c66c01fd8ba1c5f559fab495f244417566ed6888
[INFO] running `Command { std: "docker" "start" "-a" "9d14121b5e39d7a5350c4f68c66c01fd8ba1c5f559fab495f244417566ed6888", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking colorchoice v1.0.3
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[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling uuid-macro-internal v1.19.0
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[INFO] [stderr]     Checking uuid v1.19.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]    Compiling pyo3-macros v0.27.1
[INFO] [stderr]     Checking compact_str v0.9.0
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking rumtk-core v0.14.2
[INFO] [stderr]     Checking rumtk-hl7-v2 v0.9.4
[INFO] [stderr]     Checking rumtk-v2-interface v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 104 | /         return channel
[INFO] [stdout] 105 | |             .lock()
[INFO] [stdout] 106 | |             .unwrap()
[INFO] [stdout] 107 | |             .send_message(&stdin_msg.as_slice().to_rumstring());
[INFO] [stdout]     | |_______________________________________________________________- any code following this expression is unreachable
[INFO] [stdout] 108 |           exit(0);
[INFO] [stdout]     |           ^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 104 | /         return channel
[INFO] [stdout] 105 | |             .lock()
[INFO] [stdout] 106 | |             .unwrap()
[INFO] [stdout] 107 | |             .send_message(&stdin_msg.as_slice().to_rumstring());
[INFO] [stdout]     | |_______________________________________________________________- any code following this expression is unreachable
[INFO] [stdout] 108 |           exit(0);
[INFO] [stdout]     |           ^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `endpoint`
[INFO] [stdout]    --> src/main.rs:123:10
[INFO] [stdout]     |
[INFO] [stdout] 123 |     for (endpoint, raw_msgs) in rumtk_v2_mllp_receive!(channel)? {
[INFO] [stdout]     |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `listener` is never read
[INFO] [stdout]    --> src/main.rs:176:54
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let mut listener: RUMResult<SafeAsyncMLLP> = Err(RUMString::new(""));
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 180 |             listener = rumtk_v2_mllp_listen!(args.port.unwrap(), mllp_filter_policy, args.local);
[INFO] [stdout]     |             -------- `listener` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `endpoint`
[INFO] [stdout]    --> src/main.rs:123:10
[INFO] [stdout]     |
[INFO] [stdout] 123 |     for (endpoint, raw_msgs) in rumtk_v2_mllp_receive!(channel)? {
[INFO] [stdout]     |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `listener` is never read
[INFO] [stdout]    --> src/main.rs:176:54
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let mut listener: RUMResult<SafeAsyncMLLP> = Err(RUMString::new(""));
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 180 |             listener = rumtk_v2_mllp_listen!(args.port.unwrap(), mllp_filter_policy, args.local);
[INFO] [stdout]     |             -------- `listener` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         inbound_receive(listener);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = inbound_receive(listener);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             outbound_send(&channel);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let _ = outbound_send(&channel);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         inbound_receive(listener);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = inbound_receive(listener);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             outbound_send(&channel);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let _ = outbound_send(&channel);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.28s
[INFO] running `Command { std: "docker" "inspect" "9d14121b5e39d7a5350c4f68c66c01fd8ba1c5f559fab495f244417566ed6888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d14121b5e39d7a5350c4f68c66c01fd8ba1c5f559fab495f244417566ed6888", kill_on_drop: false }`
[INFO] [stdout] 9d14121b5e39d7a5350c4f68c66c01fd8ba1c5f559fab495f244417566ed6888
