[INFO] cloning repository https://github.com/thumperca/masstransit [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thumperca/masstransit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthumperca%2Fmasstransit", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthumperca%2Fmasstransit'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cdf2a53b4780532e793a6f823b8384202146b33e [INFO] checking thumperca/masstransit against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthumperca%2Fmasstransit" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thumperca/masstransit on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thumperca/masstransit [INFO] finished tweaking git repo https://github.com/thumperca/masstransit [INFO] tweaked toml for git repo https://github.com/thumperca/masstransit written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/thumperca/masstransit 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam-queue v0.3.10 [INFO] [stderr] Downloaded crossbeam v0.8.3 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.17 [INFO] [stderr] Downloaded atomic-wait v1.1.0 [INFO] [stderr] Downloaded crossbeam-channel v0.5.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 880294e73bb117b84ab393ed505016042735f7648a8201a8b2baeb26b78b5fe1 [INFO] running `Command { std: "docker" "start" "-a" "880294e73bb117b84ab393ed505016042735f7648a8201a8b2baeb26b78b5fe1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "880294e73bb117b84ab393ed505016042735f7648a8201a8b2baeb26b78b5fe1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "880294e73bb117b84ab393ed505016042735f7648a8201a8b2baeb26b78b5fe1", kill_on_drop: false }` [INFO] [stdout] 880294e73bb117b84ab393ed505016042735f7648a8201a8b2baeb26b78b5fe1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e10c40aacc9e1f6c903c79c8f6a9e3ead2149199cc31e3d82b40f67b3eddc918 [INFO] running `Command { std: "docker" "start" "-a" "e10c40aacc9e1f6c903c79c8f6a9e3ead2149199cc31e3d82b40f67b3eddc918", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.18 [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Checking crossbeam-epoch v0.9.17 [INFO] [stderr] Checking crossbeam-queue v0.3.10 [INFO] [stderr] Checking crossbeam-channel v0.5.10 [INFO] [stderr] Checking crossbeam-deque v0.8.4 [INFO] [stderr] Checking atomic-wait v1.1.0 [INFO] [stderr] Checking crossbeam v0.8.3 [INFO] [stderr] Checking mass-transit v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `receivers` is never read [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Counter { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 9 | senders: AtomicU32, [INFO] [stdout] 10 | receivers: AtomicU32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `receivers` is never read [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Counter { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 9 | senders: AtomicU32, [INFO] [stdout] 10 | receivers: AtomicU32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:48:21 [INFO] [stdout] | [INFO] [stdout] 48 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:49:26 [INFO] [stdout] | [INFO] [stdout] 49 | while let Ok(msg) = rx.recv() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:86:21 [INFO] [stdout] | [INFO] [stdout] 86 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:87:26 [INFO] [stdout] | [INFO] [stdout] 87 | while let Ok(msg) = rx.recv() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:48:21 [INFO] [stdout] | [INFO] [stdout] 48 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:49:26 [INFO] [stdout] | [INFO] [stdout] 49 | while let Ok(msg) = rx.recv() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:86:21 [INFO] [stdout] | [INFO] [stdout] 86 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:87:26 [INFO] [stdout] | [INFO] [stdout] 87 | while let Ok(msg) = rx.recv() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:124:21 [INFO] [stdout] | [INFO] [stdout] 124 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:125:28 [INFO] [stdout] | [INFO] [stdout] 125 | while let Some(msg) = rx.recv() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:124:21 [INFO] [stdout] | [INFO] [stdout] 124 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:125:28 [INFO] [stdout] | [INFO] [stdout] 125 | while let Some(msg) = rx.recv() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:163:21 [INFO] [stdout] | [INFO] [stdout] 163 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:164:28 [INFO] [stdout] | [INFO] [stdout] 164 | while let Some(msg) = rx.recv_exact(num) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:201:21 [INFO] [stdout] | [INFO] [stdout] 201 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:163:21 [INFO] [stdout] | [INFO] [stdout] 163 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:164:28 [INFO] [stdout] | [INFO] [stdout] 164 | while let Some(msg) = rx.recv_exact(num) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/bin/bench.rs:201:21 [INFO] [stdout] | [INFO] [stdout] 201 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:202:28 [INFO] [stdout] | [INFO] [stdout] 202 | while let Some(msg) = rx.recv_all() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/bin/bench.rs:202:28 [INFO] [stdout] | [INFO] [stdout] 202 | while let Some(msg) = rx.recv_all() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:29:17 [INFO] [stdout] | [INFO] [stdout] 29 | tx.send(item); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 29 | let _ = tx.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | tx2.send(item); [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] 34 | let _ = tx2.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | tx3.send(item); [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] 39 | let _ = tx3.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:44:17 [INFO] [stdout] | [INFO] [stdout] 44 | tx4.send(item); [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] 44 | let _ = tx4.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | tx.send(item); [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] 67 | let _ = tx.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | tx2.send(item); [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] 72 | let _ = tx2.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:77:17 [INFO] [stdout] | [INFO] [stdout] 77 | tx3.send(item); [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] 77 | let _ = tx3.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:82:17 [INFO] [stdout] | [INFO] [stdout] 82 | tx4.send(item); [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] 82 | let _ = tx4.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:29:17 [INFO] [stdout] | [INFO] [stdout] 29 | tx.send(item); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 29 | let _ = tx.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | tx2.send(item); [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] 34 | let _ = tx2.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | tx3.send(item); [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] 39 | let _ = tx3.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:44:17 [INFO] [stdout] | [INFO] [stdout] 44 | tx4.send(item); [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] 44 | let _ = tx4.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | tx.send(item); [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] 67 | let _ = tx.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | tx2.send(item); [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] 72 | let _ = tx2.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:77:17 [INFO] [stdout] | [INFO] [stdout] 77 | tx3.send(item); [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] 77 | let _ = tx3.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/bench.rs:82:17 [INFO] [stdout] | [INFO] [stdout] 82 | tx4.send(item); [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] 82 | let _ = tx4.send(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.41s [INFO] running `Command { std: "docker" "inspect" "e10c40aacc9e1f6c903c79c8f6a9e3ead2149199cc31e3d82b40f67b3eddc918", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e10c40aacc9e1f6c903c79c8f6a9e3ead2149199cc31e3d82b40f67b3eddc918", kill_on_drop: false }` [INFO] [stdout] e10c40aacc9e1f6c903c79c8f6a9e3ead2149199cc31e3d82b40f67b3eddc918