[INFO] cloning repository https://github.com/farberbrodsky/message_protocol [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/farberbrodsky/message_protocol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffarberbrodsky%2Fmessage_protocol", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffarberbrodsky%2Fmessage_protocol'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 91473368dab97c26bb117d0385d5929c681c6460 [INFO] checking farberbrodsky/message_protocol against master#d93f678fa55842cccd2f091deccd93e9494b3764 for pr-138844 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffarberbrodsky%2Fmessage_protocol" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/farberbrodsky/message_protocol on toolchain d93f678fa55842cccd2f091deccd93e9494b3764 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/farberbrodsky/message_protocol [INFO] finished tweaking git repo https://github.com/farberbrodsky/message_protocol [INFO] tweaked toml for git repo https://github.com/farberbrodsky/message_protocol written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/farberbrodsky/message_protocol 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" "+d93f678fa55842cccd2f091deccd93e9494b3764" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d81071649c3d78539a76ef6f13808c8154cdc721a10b89c93f06ae859733eb7a [INFO] running `Command { std: "docker" "start" "-a" "d81071649c3d78539a76ef6f13808c8154cdc721a10b89c93f06ae859733eb7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d81071649c3d78539a76ef6f13808c8154cdc721a10b89c93f06ae859733eb7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d81071649c3d78539a76ef6f13808c8154cdc721a10b89c93f06ae859733eb7a", kill_on_drop: false }` [INFO] [stdout] d81071649c3d78539a76ef6f13808c8154cdc721a10b89c93f06ae859733eb7a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7f89b1544b15f3f40a01a92cb1c2e4ff3fee152f77e78f329f5ee853aad00af1 [INFO] running `Command { std: "docker" "start" "-a" "7f89b1544b15f3f40a01a92cb1c2e4ff3fee152f77e78f329f5ee853aad00af1", kill_on_drop: false }` [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking message_protocol v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | self.write_tx.send(Ok(what)); [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] 183 | let _ = self.write_tx.send(Ok(what)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:218:25 [INFO] [stdout] | [INFO] [stdout] 218 | socket_2.write_all(&msg); [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] 218 | let _ = socket_2.write_all(&msg); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:227:13 [INFO] [stdout] | [INFO] [stdout] 227 | / tx.send(ClientMessage { [INFO] [stdout] 228 | | message: Message::Open, [INFO] [stdout] 229 | | address: addr, [INFO] [stdout] 230 | | write_tx: write_tx.clone(), [INFO] [stdout] 231 | | }); [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] 227 | let _ = tx.send(ClientMessage { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:236:21 [INFO] [stdout] | [INFO] [stdout] 236 | / tx.send(ClientMessage { [INFO] [stdout] 237 | | message: Message::Bytes(message), [INFO] [stdout] 238 | | address: addr, [INFO] [stdout] 239 | | write_tx: write_tx2.clone(), [INFO] [stdout] 240 | | }); [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] 236 | let _ = tx.send(ClientMessage { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:242:17 [INFO] [stdout] | [INFO] [stdout] 242 | / tx.send(ClientMessage { [INFO] [stdout] 243 | | message: Message::Close, [INFO] [stdout] 244 | | address: addr, [INFO] [stdout] 245 | | write_tx: write_tx2.clone(), [INFO] [stdout] 246 | | }); [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] 242 | let _ = tx.send(ClientMessage { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:287:5 [INFO] [stdout] | [INFO] [stdout] 287 | tx.send(Message::Open); [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] 287 | let _ = tx.send(Message::Open); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:292:13 [INFO] [stdout] | [INFO] [stdout] 292 | tx.send(Message::Bytes(message)); [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] 292 | let _ = tx.send(Message::Bytes(message)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:294:9 [INFO] [stdout] | [INFO] [stdout] 294 | tx.send(Message::Close); [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] 294 | let _ = tx.send(Message::Close); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | self.write_tx.send(Ok(what)); [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] 183 | let _ = self.write_tx.send(Ok(what)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:218:25 [INFO] [stdout] | [INFO] [stdout] 218 | socket_2.write_all(&msg); [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] 218 | let _ = socket_2.write_all(&msg); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:227:13 [INFO] [stdout] | [INFO] [stdout] 227 | / tx.send(ClientMessage { [INFO] [stdout] 228 | | message: Message::Open, [INFO] [stdout] 229 | | address: addr, [INFO] [stdout] 230 | | write_tx: write_tx.clone(), [INFO] [stdout] 231 | | }); [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] 227 | let _ = tx.send(ClientMessage { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:236:21 [INFO] [stdout] | [INFO] [stdout] 236 | / tx.send(ClientMessage { [INFO] [stdout] 237 | | message: Message::Bytes(message), [INFO] [stdout] 238 | | address: addr, [INFO] [stdout] 239 | | write_tx: write_tx2.clone(), [INFO] [stdout] 240 | | }); [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] 236 | let _ = tx.send(ClientMessage { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:242:17 [INFO] [stdout] | [INFO] [stdout] 242 | / tx.send(ClientMessage { [INFO] [stdout] 243 | | message: Message::Close, [INFO] [stdout] 244 | | address: addr, [INFO] [stdout] 245 | | write_tx: write_tx2.clone(), [INFO] [stdout] 246 | | }); [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] 242 | let _ = tx.send(ClientMessage { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:287:5 [INFO] [stdout] | [INFO] [stdout] 287 | tx.send(Message::Open); [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] 287 | let _ = tx.send(Message::Open); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:292:13 [INFO] [stdout] | [INFO] [stdout] 292 | tx.send(Message::Bytes(message)); [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] 292 | let _ = tx.send(Message::Bytes(message)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:294:9 [INFO] [stdout] | [INFO] [stdout] 294 | tx.send(Message::Close); [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] 294 | let _ = tx.send(Message::Close); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `Command { std: "docker" "inspect" "7f89b1544b15f3f40a01a92cb1c2e4ff3fee152f77e78f329f5ee853aad00af1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f89b1544b15f3f40a01a92cb1c2e4ff3fee152f77e78f329f5ee853aad00af1", kill_on_drop: false }` [INFO] [stdout] 7f89b1544b15f3f40a01a92cb1c2e4ff3fee152f77e78f329f5ee853aad00af1