[INFO] cloning repository https://github.com/T1lman/tcp-groupchat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/T1lman/tcp-groupchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 359b4dcafbe8f0cd0a79d223ac3ef2ba2c5f704c [INFO] checking T1lman/tcp-groupchat against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/T1lman/tcp-groupchat 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/T1lman/tcp-groupchat [INFO] finished tweaking git repo https://github.com/T1lman/tcp-groupchat [INFO] tweaked toml for git repo https://github.com/T1lman/tcp-groupchat written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/T1lman/tcp-groupchat 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] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 686243d79d0e76194f58c8ebef7927919b7f26268e1188279aeb3a23fa100d4b [INFO] running `Command { std: "docker" "start" "-a" "686243d79d0e76194f58c8ebef7927919b7f26268e1188279aeb3a23fa100d4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "686243d79d0e76194f58c8ebef7927919b7f26268e1188279aeb3a23fa100d4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "686243d79d0e76194f58c8ebef7927919b7f26268e1188279aeb3a23fa100d4b", kill_on_drop: false }` [INFO] [stdout] 686243d79d0e76194f58c8ebef7927919b7f26268e1188279aeb3a23fa100d4b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a17ee95a0f40465d8398b907a1977222626243388cb928591e114065f9c7538e [INFO] running `Command { std: "docker" "start" "-a" "a17ee95a0f40465d8398b907a1977222626243388cb928591e114065f9c7538e", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.95 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking mio v0.8.3 [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Checking tokio v1.18.2 [INFO] [stderr] Checking serde v1.0.137 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking communication-protocol v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `socket` [INFO] [stdout] --> src/bin/server/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `recv` [INFO] [stdout] --> src/bin/server/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | recv: Receiver, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_recv` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `send` [INFO] [stdout] --> src/bin/server/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | send: Sender, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_send` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `socket` [INFO] [stdout] --> src/bin/server/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `recv` [INFO] [stdout] --> src/bin/server/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | recv: Receiver, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_recv` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `send` [INFO] [stdout] --> src/bin/server/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | send: Sender, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_send` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:35:47 [INFO] [stdout] | [INFO] [stdout] 35 | async fn handle_read(mut read: OwnedReadHalf, mut sender: Sender) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/client/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut stream = tokio::net::TcpStream::connect("localhost:8080") [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:35:47 [INFO] [stdout] | [INFO] [stdout] 35 | async fn handle_read(mut read: OwnedReadHalf, mut sender: Sender) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/client/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut stream = tokio::net::TcpStream::connect("localhost:8080") [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `receiver` [INFO] [stdout] --> src/bin/server/main.rs:12:18 [INFO] [stdout] | [INFO] [stdout] 12 | let (sender, receiver) = broadcast::channel(100); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `receiver` [INFO] [stdout] --> src/bin/server/main.rs:12:18 [INFO] [stdout] | [INFO] [stdout] 12 | let (sender, receiver) = broadcast::channel(100); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `handle_connection` is never used [INFO] [stdout] --> src/bin/server/main.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | async fn handle_connection( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `handle_connection` is never used [INFO] [stdout] --> src/bin/server/main.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | async fn handle_connection( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.08s [INFO] running `Command { std: "docker" "inspect" "a17ee95a0f40465d8398b907a1977222626243388cb928591e114065f9c7538e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a17ee95a0f40465d8398b907a1977222626243388cb928591e114065f9c7538e", kill_on_drop: false }` [INFO] [stdout] a17ee95a0f40465d8398b907a1977222626243388cb928591e114065f9c7538e [INFO] checking T1lman/tcp-groupchat against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/T1lman/tcp-groupchat on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/T1lman/tcp-groupchat [INFO] finished tweaking git repo https://github.com/T1lman/tcp-groupchat [INFO] tweaked toml for git repo https://github.com/T1lman/tcp-groupchat written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/T1lman/tcp-groupchat 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 531fdaa472d1840697af7ddc53a14ffdfb9976726b4fc4d6b3ac17b394963d4b [INFO] running `Command { std: "docker" "start" "-a" "531fdaa472d1840697af7ddc53a14ffdfb9976726b4fc4d6b3ac17b394963d4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "531fdaa472d1840697af7ddc53a14ffdfb9976726b4fc4d6b3ac17b394963d4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "531fdaa472d1840697af7ddc53a14ffdfb9976726b4fc4d6b3ac17b394963d4b", kill_on_drop: false }` [INFO] [stdout] 531fdaa472d1840697af7ddc53a14ffdfb9976726b4fc4d6b3ac17b394963d4b [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2d3a7f804a7427fc0bd5cd5845ddf1f3f44bfc624062d4cb2aa8a7ebcd78cbf8 [INFO] running `Command { std: "docker" "start" "-a" "2d3a7f804a7427fc0bd5cd5845ddf1f3f44bfc624062d4cb2aa8a7ebcd78cbf8", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.95 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking mio v0.8.3 [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.19/src/format/parse.rs:491:21 [INFO] [stdout] | [INFO] [stdout] 491 | Err(INVALID)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 491 | Err::(INVALID)?; [INFO] [stdout] | +++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `chrono` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "2d3a7f804a7427fc0bd5cd5845ddf1f3f44bfc624062d4cb2aa8a7ebcd78cbf8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d3a7f804a7427fc0bd5cd5845ddf1f3f44bfc624062d4cb2aa8a7ebcd78cbf8", kill_on_drop: false }` [INFO] [stdout] 2d3a7f804a7427fc0bd5cd5845ddf1f3f44bfc624062d4cb2aa8a7ebcd78cbf8