[INFO] fetching crate clocked-dispatch 4.0.2...
[INFO] checking clocked-dispatch-4.0.2 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate clocked-dispatch 4.0.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate clocked-dispatch 4.0.2 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clocked-dispatch 4.0.2
[INFO] finished tweaking crates.io crate clocked-dispatch 4.0.2
[INFO] tweaked toml for crates.io crate clocked-dispatch 4.0.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14030edf3943020476fb76f231046f31102e317375dcf04534458ef9ca926cce
[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" "14030edf3943020476fb76f231046f31102e317375dcf04534458ef9ca926cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14030edf3943020476fb76f231046f31102e317375dcf04534458ef9ca926cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14030edf3943020476fb76f231046f31102e317375dcf04534458ef9ca926cce", kill_on_drop: false }`
[INFO] [stdout] 14030edf3943020476fb76f231046f31102e317375dcf04534458ef9ca926cce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a30a8a9f5d5b2c16abe2636b50ce9e06a8d62584d40ebcfd27bcda048df46d9
[INFO] running `Command { std: "docker" "start" "-a" "6a30a8a9f5d5b2c16abe2636b50ce9e06a8d62584d40ebcfd27bcda048df46d9", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking clocked-dispatch v4.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 716 |             debug!("{}: notifying {} about {}", self.id, tn, ts);
[INFO] [stdout]     |             ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` 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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 718 |                 debug!("{}: including data", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 746 |         debug!("{}: processing delayed after {}", self.id, self.counter);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 807 |         debug!("{}: done replaying", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 755 |             debug!("{}: next from bcast is {:?}", self.id, next);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 775 |             debug!("{}: next from tdelay is {:?}", self.id, tnext);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 780 |                     debug!("{}: forwarding from tdelay", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 795 |                     debug!("{}: forwarding from bdelay", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |           $(let _ = $args;)*;
[INFO] [stdout]     |                             ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 821 | /                 debug!("{}: got message with ts {:?} from {} for {:?}",
[INFO] [stdout] 822 | |                        self.id,
[INFO] [stdout] 823 | |                        td.ts,
[INFO] [stdout] 824 | |                        td.from,
[INFO] [stdout] 825 | |                        td.to);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 866 |                         debug!("{}: delayed in {:?}", self.id, to);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 874 |                         debug!("{}: delayed in bcast", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 883 |                 debug!("{}: receiver {} joined", self.id, name);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 897 |                 debug!("{}: receiver {} left", self.id, name);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 909 |                 debug!("{}: sender {} for {:?} joined", self.id, source, target);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 919 |                 debug!("{}: sender {} for {:?} left", self.id, source, target);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 938 |                         debug!("{}: closing now-done channel {}", self.id, tn);
[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: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:142:27
[INFO] [stdout]      |
[INFO] [stdout] 142  |           $(let _ = $args;)*;
[INFO] [stdout]      |                             ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 1058 | /                 debug!("{} control: dealing with departure of receiver {}",
[INFO] [stdout] 1059 | |                        id,
[INFO] [stdout] 1060 | |                        left);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 716 |             debug!("{}: notifying {} about {}", self.id, tn, ts);
[INFO] [stdout]     |             ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` 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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 718 |                 debug!("{}: including data", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 746 |         debug!("{}: processing delayed after {}", self.id, self.counter);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 807 |         debug!("{}: done replaying", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 755 |             debug!("{}: next from bcast is {:?}", self.id, next);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 775 |             debug!("{}: next from tdelay is {:?}", self.id, tnext);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 780 |                     debug!("{}: forwarding from tdelay", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 795 |                     debug!("{}: forwarding from bdelay", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |           $(let _ = $args;)*;
[INFO] [stdout]     |                             ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 821 | /                 debug!("{}: got message with ts {:?} from {} for {:?}",
[INFO] [stdout] 822 | |                        self.id,
[INFO] [stdout] 823 | |                        td.ts,
[INFO] [stdout] 824 | |                        td.from,
[INFO] [stdout] 825 | |                        td.to);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 866 |                         debug!("{}: delayed in {:?}", self.id, to);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 874 |                         debug!("{}: delayed in bcast", self.id);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 883 |                 debug!("{}: receiver {} joined", self.id, name);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 897 |                 debug!("{}: receiver {} left", self.id, name);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 909 |                 debug!("{}: sender {} for {:?} joined", self.id, source, target);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 919 |                 debug!("{}: sender {} for {:?} left", self.id, source, target);
[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: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |         $(let _ = $args;)*;
[INFO] [stdout]     |                           ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 938 |                         debug!("{}: closing now-done channel {}", self.id, tn);
[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: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:142:27
[INFO] [stdout]      |
[INFO] [stdout] 142  |           $(let _ = $args;)*;
[INFO] [stdout]      |                             ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 1058 | /                 debug!("{} control: dealing with departure of receiver {}",
[INFO] [stdout] 1059 | |                        id,
[INFO] [stdout] 1060 | |                        left);
[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: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "6a30a8a9f5d5b2c16abe2636b50ce9e06a8d62584d40ebcfd27bcda048df46d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a30a8a9f5d5b2c16abe2636b50ce9e06a8d62584d40ebcfd27bcda048df46d9", kill_on_drop: false }`
[INFO] [stdout] 6a30a8a9f5d5b2c16abe2636b50ce9e06a8d62584d40ebcfd27bcda048df46d9